diff --git a/ucoinj-cesium/src/main/cesium b/ucoinj-cesium/src/main/cesium
index 7fe6f85bd6150ce16c3a1d894836d6d757274175..740da406a9b2f3c72f5c31bb7ad4a42c18e212c5 160000
--- a/ucoinj-cesium/src/main/cesium
+++ b/ucoinj-cesium/src/main/cesium
@@ -1 +1 @@
-Subproject commit 7fe6f85bd6150ce16c3a1d894836d6d757274175
+Subproject commit 740da406a9b2f3c72f5c31bb7ad4a42c18e212c5
diff --git a/ucoinj-elasticsearch-plugin/pom.xml b/ucoinj-elasticsearch-plugin/pom.xml
index bf37f2d6af80444accee8d0b8a769676bcb97239..802bb526c4570a57574b8ca85b5c77e2b3a47730 100644
--- a/ucoinj-elasticsearch-plugin/pom.xml
+++ b/ucoinj-elasticsearch-plugin/pom.xml
@@ -20,34 +20,26 @@
             <scope>compile</scope>
         </dependency>
 
-        <!-- JNA -->
         <dependency>
-            <groupId>net.java.dev.jna</groupId>
-            <artifactId>jna</artifactId>
-            <scope>runtime</scope>
+            <groupId>io.ucoin</groupId>
+            <artifactId>ucoinj-elasticsearch</artifactId>
+            <version>${project.version}</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.xbib.elasticsearch.plugin</groupId>
-            <artifactId>elasticsearch-transport-websocket</artifactId>
-            <version>1.4.0.0</version>
-        </dependency>
-
-        <!-- Unit tests -->
+        <!-- LOGGING DEPENDENCIES - SLF4J -->
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
-            <scope>test</scope>
+            <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>log4j</groupId>
             <artifactId>log4j</artifactId>
-            <scope>test</scope>
+            <optional>true</optional>
         </dependency>
 
     </dependencies>
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/ExampleRestModule.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/ExampleRestModule.java
deleted file mode 100644
index 59156bcc7cf837f38ed4c043231b843a7b0efa93..0000000000000000000000000000000000000000
--- a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/ExampleRestModule.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package io.ucoin.ucoinj.elasticsearch.action;
-
-import org.elasticsearch.common.inject.AbstractModule;
-
-public class ExampleRestModule extends AbstractModule {
-
-    @Override protected void configure() {
-        bind(HelloRestHandler.class).asEagerSingleton();
-    }
-}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/HelloRestHandler.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/HelloRestHandler.java
deleted file mode 100644
index 058f24afe2759d74cb8079235fc36b408f62f362..0000000000000000000000000000000000000000
--- a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/HelloRestHandler.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package io.ucoin.ucoinj.elasticsearch.action;
-
-import org.elasticsearch.client.Client;
-import org.elasticsearch.common.inject.Inject;
-import org.elasticsearch.common.settings.Settings;
-import org.elasticsearch.rest.*;
-
-import static org.elasticsearch.rest.RestRequest.Method.GET;
-import static org.elasticsearch.rest.RestStatus.OK;
-
-public class HelloRestHandler extends BaseRestHandler {
-
-    @Inject
-    public HelloRestHandler(Settings settings, RestController controller, Client client) {
-        super(settings, controller, client);
-        controller.registerHandler(GET, "/_hello", this);
-    }
-
-    @Override
-    protected void handleRequest(RestRequest restRequest, RestChannel restChannel, Client client) throws Exception {
-        String who = restRequest.param("who");
-        String whoSafe = (who!=null) ? who : "world";
-        restChannel.sendResponse(new BytesRestResponse(OK, "Hello, " + whoSafe + "!"));
-    }
-
-}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/RestModule.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/RestModule.java
new file mode 100644
index 0000000000000000000000000000000000000000..99726aba0a93cd0ba3c2497520bcaca26c573793
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/RestModule.java
@@ -0,0 +1,20 @@
+package io.ucoin.ucoinj.elasticsearch.action;
+
+import io.ucoin.ucoinj.elasticsearch.action.currency.RestCurrencyIndexAction;
+import io.ucoin.ucoinj.elasticsearch.action.product.RestProductIndexAction;
+import io.ucoin.ucoinj.elasticsearch.action.security.RestSecurityAuthAction;
+import io.ucoin.ucoinj.elasticsearch.action.security.RestSecurityGetChallengeAction;
+import org.elasticsearch.common.inject.AbstractModule;
+import org.elasticsearch.common.inject.Module;
+
+public class RestModule extends AbstractModule implements Module {
+
+    @Override protected void configure() {
+        bind(RestCurrencyIndexAction.class).asEagerSingleton();
+
+        bind(RestProductIndexAction.class).asEagerSingleton();
+
+        bind(RestSecurityGetChallengeAction.class).asEagerSingleton();
+        bind(RestSecurityAuthAction.class).asEagerSingleton();
+    }
+}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/currency/RestCurrencyIndexAction.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/currency/RestCurrencyIndexAction.java
new file mode 100644
index 0000000000000000000000000000000000000000..64e086352c6351d42692eaab3accf14557414303
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/currency/RestCurrencyIndexAction.java
@@ -0,0 +1,26 @@
+package io.ucoin.ucoinj.elasticsearch.action.currency;
+
+import org.elasticsearch.client.Client;
+import org.elasticsearch.common.inject.Inject;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.rest.*;
+
+import static org.elasticsearch.rest.RestStatus.OK;
+
+public class RestCurrencyIndexAction extends BaseRestHandler {
+
+    @Inject
+    public RestCurrencyIndexAction(Settings settings, RestController controller, Client client) {
+        super(settings, controller, client);
+        controller.registerHandler(RestRequest.Method.POST, "/currency", this);
+    }
+
+    @Override
+    protected void handleRequest(RestRequest restRequest, RestChannel restChannel, Client client) throws Exception {
+        String json = restRequest.content().toUtf8();
+        //ServiceLocator.instance().getCurrencyIndexerService().indexCurrency();
+        String currencyName = "";
+        restChannel.sendResponse(new BytesRestResponse(OK, currencyName));
+    }
+
+}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/product/RestProductIndexAction.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/product/RestProductIndexAction.java
new file mode 100644
index 0000000000000000000000000000000000000000..0b55e0dfa06b7f0cff5b037e71fdae4dfbaa2cdb
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/product/RestProductIndexAction.java
@@ -0,0 +1,32 @@
+package io.ucoin.ucoinj.elasticsearch.action.product;
+
+import io.ucoin.ucoinj.elasticsearch.service.ServiceLocator;
+import org.elasticsearch.client.Client;
+import org.elasticsearch.common.inject.Inject;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.ESLoggerFactory;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.rest.*;
+
+import static org.elasticsearch.rest.RestRequest.Method.POST;
+import static org.elasticsearch.rest.RestStatus.OK;
+
+public class RestProductIndexAction extends BaseRestHandler {
+
+    private static final ESLogger log = ESLoggerFactory.getLogger(RestProductIndexAction.class.getName());
+
+    @Inject
+    public RestProductIndexAction(Settings settings, RestController controller, Client client) {
+        super(settings, controller, client);
+        controller.registerHandler(POST, "/product", this);
+    }
+
+    @Override
+    protected void handleRequest(final RestRequest request, RestChannel restChannel, Client client) throws Exception {
+
+        String productId = ServiceLocator.instance().getProductIndexerService().indexProductFromJson(request.content().toUtf8());
+
+        restChannel.sendResponse(new BytesRestResponse(OK, productId));
+    }
+
+}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/security/RestSecurityAuthAction.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/security/RestSecurityAuthAction.java
new file mode 100644
index 0000000000000000000000000000000000000000..173cb54fff4984ef386aae654cce6fdd88a0a287
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/security/RestSecurityAuthAction.java
@@ -0,0 +1,63 @@
+package io.ucoin.ucoinj.elasticsearch.action.security;
+
+import io.ucoin.ucoinj.core.client.model.bma.gson.GsonUtils;
+import io.ucoin.ucoinj.core.util.StringUtils;
+import io.ucoin.ucoinj.elasticsearch.security.challenge.ChallengeMessageStore;
+import io.ucoin.ucoinj.elasticsearch.security.token.SecurityTokenStore;
+import io.ucoin.ucoinj.elasticsearch.service.ServiceLocator;
+import org.elasticsearch.client.Client;
+import org.elasticsearch.common.inject.Inject;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.ESLoggerFactory;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.rest.*;
+
+import static org.elasticsearch.rest.RestRequest.Method.GET;
+import static org.elasticsearch.rest.RestRequest.Method.POST;
+import static org.elasticsearch.rest.RestStatus.FORBIDDEN;
+import static org.elasticsearch.rest.RestStatus.OK;
+
+public class RestSecurityAuthAction extends BaseRestHandler {
+
+    private static final ESLogger log = ESLoggerFactory.getLogger(RestSecurityAuthAction.class.getName());
+
+    private ChallengeMessageStore challengeMessageStore;
+    private SecurityTokenStore securityTokenStore;
+
+    @Inject
+    public RestSecurityAuthAction(Settings settings, RestController controller, Client client,
+                                  ChallengeMessageStore challengeMessageStore,
+                                  SecurityTokenStore securityTokenStore) {
+        super(settings, controller, client);
+        this.challengeMessageStore = challengeMessageStore;
+        this.securityTokenStore = securityTokenStore;
+        controller.registerHandler(POST, "/auth", this);
+    }
+
+    @Override
+    protected void handleRequest(final RestRequest request, RestChannel restChannel, Client client) throws Exception {
+
+        AuthData authData = GsonUtils.newBuilder().create().fromJson(request.content().toUtf8(), AuthData.class);
+
+        // TODO Authorization: Basic   instead ?
+
+        if (StringUtils.isNotBlank(authData.pubkey)) {
+            if (challengeMessageStore.validateChallenge(authData.challenge)) {
+                boolean signatureOK = ServiceLocator.instance().getCryptoService().verify(authData.challenge, authData.signature, authData.pubkey);
+                if (signatureOK) {
+                    String token = securityTokenStore.createNewToken(authData.challenge, authData.signature, authData.pubkey);
+                    restChannel.sendResponse(new BytesRestResponse(OK, token));
+                    return;
+                }
+            }
+        }
+
+        restChannel.sendResponse(new BytesRestResponse(FORBIDDEN, Boolean.FALSE.toString()));
+    }
+
+    class AuthData {
+        public String pubkey;
+        public String challenge;
+        public String signature;
+    }
+}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/security/RestSecurityGetChallengeAction.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/security/RestSecurityGetChallengeAction.java
new file mode 100644
index 0000000000000000000000000000000000000000..bf41ab54378961e90bbbb4368dc8e50d6ab71751
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/action/security/RestSecurityGetChallengeAction.java
@@ -0,0 +1,28 @@
+package io.ucoin.ucoinj.elasticsearch.action.security;
+
+import io.ucoin.ucoinj.elasticsearch.security.challenge.ChallengeMessageStore;
+import org.elasticsearch.client.Client;
+import org.elasticsearch.common.inject.Inject;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.rest.*;
+
+import static org.elasticsearch.rest.RestRequest.Method.GET;
+import static org.elasticsearch.rest.RestStatus.OK;
+
+public class RestSecurityGetChallengeAction extends BaseRestHandler {
+
+    private ChallengeMessageStore challengeMessageStore;
+
+    @Inject
+    public RestSecurityGetChallengeAction(Settings settings, RestController controller, Client client, ChallengeMessageStore challengeMessageStore) {
+        super(settings, controller, client);
+        this.challengeMessageStore = challengeMessageStore;
+        controller.registerHandler(GET, "/auth", this);
+    }
+
+    @Override
+    protected void handleRequest(final RestRequest request, RestChannel restChannel, Client client) throws Exception {
+        restChannel.sendResponse(new BytesRestResponse(OK, challengeMessageStore.createNewChallenge()));
+    }
+
+}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/plugin/Plugin.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/plugin/Plugin.java
index 4694a58a4116194262fa343bcf3a901db667514f..e777cc714c0862516b3550a25d209a9e327c67b9 100644
--- a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/plugin/Plugin.java
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/plugin/Plugin.java
@@ -1,10 +1,9 @@
 package io.ucoin.ucoinj.elasticsearch.plugin;
 
 import com.google.common.collect.Lists;
-import io.ucoin.ucoinj.elasticsearch.action.ExampleRestModule;
-import io.ucoin.ucoinj.elasticsearch.action.HelloRestHandler;
+import io.ucoin.ucoinj.elasticsearch.action.RestModule;
+import io.ucoin.ucoinj.elasticsearch.security.SecurityModule;
 import org.elasticsearch.common.inject.Module;
-import org.elasticsearch.rest.RestModule;
 
 import java.util.Collection;
 
@@ -20,15 +19,11 @@ public class Plugin extends org.elasticsearch.plugins.Plugin {
         return "uCoinj ElasticSearch Plugin";
     }
 
-    /*
     @Override
     public Collection<Module> nodeModules() {
         Collection<Module> modules = Lists.newArrayList();
-        modules.add(ExampleRestModule.class);
+        modules.add(new SecurityModule());
+        modules.add(new RestModule());
         return modules;
-    }*/
-
-    public void onModule(RestModule module) {
-        module.addRestAction(HelloRestHandler.class);
     }
 }
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/SecurityModule.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/SecurityModule.java
new file mode 100644
index 0000000000000000000000000000000000000000..f27f45870eba1d83f7a5aec87accacc87cd00612
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/SecurityModule.java
@@ -0,0 +1,14 @@
+package io.ucoin.ucoinj.elasticsearch.security;
+
+import io.ucoin.ucoinj.elasticsearch.security.challenge.ChallengeMessageStore;
+import io.ucoin.ucoinj.elasticsearch.security.token.SecurityTokenStore;
+import org.elasticsearch.common.inject.AbstractModule;
+import org.elasticsearch.common.inject.Module;
+
+public class SecurityModule extends AbstractModule implements Module {
+
+    @Override protected void configure() {
+        bind(ChallengeMessageStore.class).asEagerSingleton();
+        bind(SecurityTokenStore.class).asEagerSingleton();
+    }
+}
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/challenge/ChallengeMessageStore.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/challenge/ChallengeMessageStore.java
new file mode 100644
index 0000000000000000000000000000000000000000..a1cc23d75afcec1a47ce7e33df880f64edcdb0a7
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/challenge/ChallengeMessageStore.java
@@ -0,0 +1,90 @@
+package io.ucoin.ucoinj.elasticsearch.security.challenge;
+
+/*
+ * #%L
+ * uCoinj :: UI Wicket
+ * %%
+ * Copyright (C) 2014 - 2016 EIS
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the 
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public 
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/gpl-3.0.html>.
+ * #L%
+ */
+
+import com.google.common.base.Preconditions;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import io.ucoin.ucoinj.core.util.ObjectUtils;
+import io.ucoin.ucoinj.core.util.StringUtils;
+import org.elasticsearch.common.inject.Inject;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.ESLoggerFactory;
+import org.elasticsearch.common.settings.Settings;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Created by blavenie on 06/01/16.
+ */
+public class ChallengeMessageStore {
+
+    private static final ESLogger log = ESLoggerFactory.getLogger(ChallengeMessageStore.class.getName());
+
+
+    private String prefix;
+    private long validityDurationInSeconds;
+    private LoadingCache<String, String> chalengeMessageCache;
+
+    @Inject
+    public ChallengeMessageStore(Settings settings) {
+        this.prefix = settings.get("ucoinj.auth.challenge.prefix", "ucoinj-challenge-");
+        this.validityDurationInSeconds = settings.getAsInt("ucoinj.auth.challengeValidityDuration", 10);
+        this.chalengeMessageCache = initGeneratedMessageCache();
+    }
+
+    public boolean validateChallenge(String challenge) {
+        Preconditions.checkArgument(StringUtils.isNotBlank(challenge));
+
+        String storedChallenge = chalengeMessageCache.getIfPresent(challenge);
+
+        // if no value in cache => maybe challenge expired
+        return ObjectUtils.equals(storedChallenge, challenge);
+    }
+
+    public String createNewChallenge() {
+        String challenge = newChallenge();
+        chalengeMessageCache.put(challenge, challenge);
+        return newChallenge();
+    }
+
+    /* -- internal methods -- */
+
+    protected String newChallenge() {
+        return String.valueOf(prefix + System.currentTimeMillis() * System.currentTimeMillis());
+    }
+
+
+    protected LoadingCache<String, String> initGeneratedMessageCache() {
+        return CacheBuilder.newBuilder()
+                .expireAfterWrite(validityDurationInSeconds, TimeUnit.SECONDS)
+                .build(new CacheLoader<String, String>() {
+                    @Override
+                    public String load(String challenge) throws Exception {
+                        // not used. Filled manually
+                        return null;
+                    }
+                });
+    }
+}
diff --git a/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/token/SecurityTokenStore.java b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/token/SecurityTokenStore.java
new file mode 100644
index 0000000000000000000000000000000000000000..94d9e98fab076c2b33e98ac8a79b6ae29097cde5
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/main/java/io/ucoin/ucoinj/elasticsearch/security/token/SecurityTokenStore.java
@@ -0,0 +1,88 @@
+package io.ucoin.ucoinj.elasticsearch.security.token;
+
+/*
+ * #%L
+ * uCoinj :: UI Wicket
+ * %%
+ * Copyright (C) 2014 - 2016 EIS
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the 
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public 
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/gpl-3.0.html>.
+ * #L%
+ */
+
+import com.google.common.base.Preconditions;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import io.ucoin.ucoinj.core.util.ObjectUtils;
+import io.ucoin.ucoinj.core.util.StringUtils;
+import org.elasticsearch.common.inject.Inject;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.ESLoggerFactory;
+import org.elasticsearch.common.settings.Settings;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Created by blavenie on 06/01/16.
+ */
+public class SecurityTokenStore {
+
+    private static final ESLogger log = ESLoggerFactory.getLogger(SecurityTokenStore.class.getName());
+
+    private String prefix;
+    private long validityDurationInSeconds;
+    private LoadingCache<String, String> tokenCache;
+
+    @Inject
+    public SecurityTokenStore(Settings settings) {
+        this.prefix = settings.get("ucoinj.auth.token.prefix", "ucoinj-");
+        this.validityDurationInSeconds = settings.getAsInt("ucoinj.auth.tokenValidityDuration", 30*60 /*30min*/ );
+        this.tokenCache = initGeneratedMessageCache();
+    }
+
+    public boolean validateToken(String token) {
+        Preconditions.checkArgument(StringUtils.isNotBlank(token));
+
+        String storedToken = tokenCache.getIfPresent(token);
+
+        // if no value in cache => maybe token expired
+        return ObjectUtils.equals(storedToken, token);
+    }
+
+    public String createNewToken(String challenge, String signature, String pubkey) {
+        String token = newToken(challenge, signature, pubkey);
+        tokenCache.put(challenge, challenge);
+        return token;
+    }
+
+    /* -- internal methods -- */
+
+    protected String newToken(String challenge, String signature, String pubkey) {
+        return String.valueOf(pubkey + ":" + challenge + "|" + signature);
+    }
+
+    protected LoadingCache<String, String> initGeneratedMessageCache() {
+        return CacheBuilder.newBuilder()
+                .expireAfterWrite(validityDurationInSeconds, TimeUnit.SECONDS)
+                .build(new CacheLoader<String, String>() {
+                    @Override
+                    public String load(String challenge) throws Exception {
+                        // not used. Filled manually
+                        return null;
+                    }
+                });
+    }
+}
diff --git a/ucoinj-elasticsearch-plugin/src/test/es-home/plugins/ucoinj-elasticsearch/LICENSE b/ucoinj-elasticsearch-plugin/src/test/es-home/plugins/ucoinj-elasticsearch/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..94a9ed024d3859793618152ea559a168bbcbb5e2
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/test/es-home/plugins/ucoinj-elasticsearch/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
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+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/ucoinj-elasticsearch-plugin/src/test/es-home/plugins/ucoinj-elasticsearch/plugin-descriptor.properties b/ucoinj-elasticsearch-plugin/src/test/es-home/plugins/ucoinj-elasticsearch/plugin-descriptor.properties
new file mode 100644
index 0000000000000000000000000000000000000000..de3dcc30b890f6598aeee05350a453bdb5ff5d9c
--- /dev/null
+++ b/ucoinj-elasticsearch-plugin/src/test/es-home/plugins/ucoinj-elasticsearch/plugin-descriptor.properties
@@ -0,0 +1,9 @@
+name=ucoinj-elasticsearch
+description=uCoinj :: ElasticSearch Plugin
+version=0.1-SNAPSHOT
+site=false
+jvm=true
+classname=io.ucoin.ucoinj.elasticsearch.plugin.Plugin
+java.version=1.7
+elasticsearch.version=2.1.1
+isolated=false
\ No newline at end of file
diff --git a/ucoinj-elasticsearch-plugin/src/test/resources/log4j.properties b/ucoinj-elasticsearch-plugin/src/test/resources/log4j.properties
index 8a39e9b5e79ede37b62a300e7409f1393956eb46..3615f59d4a1e06e83216893bb80a96d885d93fe7 100644
--- a/ucoinj-elasticsearch-plugin/src/test/resources/log4j.properties
+++ b/ucoinj-elasticsearch-plugin/src/test/resources/log4j.properties
@@ -7,16 +7,19 @@ log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
 log4j.appender.stdout.layout.ConversionPattern=%d{ISO8601} %5p (%c:%L) - %m%n
 
-# ucoin levels
-log4j.logger.io.ucoin.ucoinj=INFO
-#log4j.logger.io.ucoin.ucoinj.core.client.service=DEBUG
-
+# File output
 log4j.appender.file=org.apache.log4j.RollingFileAppender
 log4j.appender.file.file=target/ucoinj-elasticsearch-plugin.log
 log4j.appender.file.MaxFileSize=10MB
 log4j.appender.file.MaxBackupIndex=4
-
 log4j.appender.file.layout=org.apache.log4j.PatternLayout
 log4j.appender.file.layout.ConversionPattern=%d{ISO8601} %5p %c - %m%n
 
+# uCoinJ levels
+log4j.logger.io.ucoin.ucoinj=INFO
+log4j.logger.io.ucoin.ucoinj.elasticsearch=DEBUG
+#log4j.logger.io.ucoin.ucoinj.elasticsearch.action=DEBUG
+#log4j.logger.io.ucoin.ucoinj.core.client.service=DEBUG
 
+# Other frameworks levels
+log4j.logger.org.elasticsearch=INFO
\ No newline at end of file
diff --git a/ucoinj-elasticsearch/pom.xml b/ucoinj-elasticsearch/pom.xml
index fe1f98fd0d927e886bc5e19d7b56c5c8679642d6..6733fb37e6c3222abc27f5a5c735cb252286ba07 100644
--- a/ucoinj-elasticsearch/pom.xml
+++ b/ucoinj-elasticsearch/pom.xml
@@ -45,10 +45,12 @@
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-log4j12</artifactId>
+      <optional>true</optional>
     </dependency>
     <dependency>
       <groupId>log4j</groupId>
       <artifactId>log4j</artifactId>
+      <optional>true</optional>
     </dependency>
 
     <!-- Elastic Search -->
@@ -61,6 +63,13 @@
       <artifactId>jackson-databind</artifactId>
     </dependency>
 
+    <!-- JNA -->
+    <dependency>
+      <groupId>net.java.dev.jna</groupId>
+      <artifactId>jna</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
     <!-- JNA (need for OS shutdown hook) -->
     <dependency>
       <groupId>net.java.dev.jna</groupId>
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/Main.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/Main.java
index de9d52aeff757a18b3bb3ec51e7c59d2bbaee791..7bd79239ddba1291b238dd460b807a4378cd5905 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/Main.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/Main.java
@@ -33,16 +33,18 @@ import io.ucoin.ucoinj.elasticsearch.service.ServiceLocator;
 import io.ucoin.ucoinj.elasticsearch.util.Desktop;
 import io.ucoin.ucoinj.elasticsearch.util.DesktopPower;
 import org.apache.commons.io.FileUtils;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.ESLoggerFactory;
 import org.nuiton.config.ApplicationConfig;
 import org.nuiton.i18n.I18n;
 import org.nuiton.i18n.init.DefaultI18nInitializer;
 import org.nuiton.i18n.init.UserI18nInitializer;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
-import java.util.*;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
 
 public class Main {
 
@@ -55,7 +57,7 @@ public class Main {
             + "* %s\n" // sub-title
             + TITLE_EMPTY_LINE + TITLE_SEPARATOR_LINE;
 
-    private static final Logger log = LoggerFactory.getLogger(Main.class);
+    private static final ESLogger log = ESLoggerFactory.getLogger(Main.class.getName());
 
     public static void main(String[] args) {
         Main main = new Main();
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/HelpAction.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/HelpAction.java
index 5728513a389ae573413db5f7cc564b19f3c89e00..ea8f698804d3e5fbccd3f74d163d0edd18e218c9 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/HelpAction.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/HelpAction.java
@@ -34,6 +34,7 @@ public class HelpAction {
 				.append(" start                            Start elastic search node\n")
 				.append(" index                            Index blocks from BMA Node\n")
 				.append(" reset-data                       Reset indexed data for the uCoin node's currency\n")
+				.append(" reset-data-product               Reset indexed products data\n")
 				.append("\n")
 				.append("\n")
 				.append("Options:\n\n")
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/IndexerAction.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/IndexerAction.java
index 8b968b296bff9a55e2cc23539105ccd0e4e0563c..0e6d117a62f314ee2a067a9a87bfa46104077a25 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/IndexerAction.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/IndexerAction.java
@@ -31,6 +31,8 @@ import io.ucoin.ucoinj.core.client.service.bma.BlockchainRemoteService;
 import io.ucoin.ucoinj.core.util.websocket.WebsocketClientEndpoint;
 import io.ucoin.ucoinj.elasticsearch.config.Configuration;
 import io.ucoin.ucoinj.elasticsearch.service.BlockIndexerService;
+import io.ucoin.ucoinj.elasticsearch.service.CategoryIndexerService;
+import io.ucoin.ucoinj.elasticsearch.service.ProductIndexerService;
 import io.ucoin.ucoinj.elasticsearch.service.ServiceLocator;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
@@ -76,7 +78,7 @@ public class IndexerAction {
         }
     }
 
-    public void resetData() {
+    public void resetCurrencyBlocks() {
         BlockchainRemoteService blockchainService = ServiceLocator.instance().getBlockchainRemoteService();
         BlockIndexerService indexerService = ServiceLocator.instance().getBlockIndexerService();
         Configuration config = Configuration.instance();
@@ -94,22 +96,55 @@ public class IndexerAction {
 
             log.info(String.format("Reset data for index [%s]", currencyName));
 
-            // Check if index exists
+            // Delete then create index on currency
             boolean indexExists = indexerService.existsIndex(currencyName);
             if (indexExists) {
-                log.debug(String.format("Deleting index [%s]", currencyName));
                 indexerService.deleteIndex(currencyName);
-
-                log.debug(String.format("Creating index [%s]", currencyName));
                 indexerService.createIndex(currencyName);
             }
 
+
             log.info(String.format("Successfully reset data for index [%s]", currencyName));
         } catch(Exception e) {
             log.error("Error during reset data: " + e.getMessage(), e);
         }
     }
 
+    public void resetProducts() {
+        ProductIndexerService productIndexerService = ServiceLocator.instance().getProductIndexerService();
+
+        try {
+            // Delete then create index on product
+            boolean indexExists = productIndexerService.existsIndex();
+            if (indexExists) {
+                productIndexerService.deleteIndex();
+            }
+            log.info(String.format("Successfully reset products data"));
+        } catch(Exception e) {
+            log.error("Error during reset products data: " + e.getMessage(), e);
+        }
+    }
+
+    public void resetCategories() {
+        CategoryIndexerService categoryIndexerService = ServiceLocator.instance().getCategoryIndexerService();
+
+        try {
+            // Delete then create index on product
+            boolean indexExists = categoryIndexerService.existsIndex();
+            if (indexExists) {
+                categoryIndexerService.deleteIndex();
+            }
+
+            // Init data
+            categoryIndexerService.createIndex();
+            categoryIndexerService.initCategories();
+
+            log.info(String.format("Successfully re-initialized categories data"));
+        } catch(Exception e) {
+            log.error("Error during reset categories data: " + e.getMessage(), e);
+        }
+    }
+
     /* -- -- */
 
     protected Peer checkConfigAndGetPeer(Configuration config) {
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/NodeAction.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/NodeAction.java
index 07d0c7735a4c91d23cb1c93977ab65a76169e966..3c6f45cecf92af2f4681e63c9bf1211d2a02a11c 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/NodeAction.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/action/NodeAction.java
@@ -27,9 +27,7 @@ package io.ucoin.ucoinj.elasticsearch.action;
 import io.ucoin.ucoinj.core.util.CommandLinesUtils;
 import io.ucoin.ucoinj.core.util.StringUtils;
 import io.ucoin.ucoinj.elasticsearch.config.Configuration;
-import io.ucoin.ucoinj.elasticsearch.service.CurrencyIndexerService;
-import io.ucoin.ucoinj.elasticsearch.service.ElasticSearchService;
-import io.ucoin.ucoinj.elasticsearch.service.ServiceLocator;
+import io.ucoin.ucoinj.elasticsearch.service.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -74,8 +72,19 @@ public class NodeAction {
 
 
         // Create indexed if need
-        CurrencyIndexerService currencyIndexerService = ServiceLocator.instance().getCurrencyIndexerService();
-        currencyIndexerService.createIndexIfNotExists();
+        {
+            // Currency index
+            CurrencyIndexerService currencyIndexerService = ServiceLocator.instance().getCurrencyIndexerService();
+            currencyIndexerService.createIndexIfNotExists();
+
+            // Product index
+            ProductIndexerService productIndexerService = ServiceLocator.instance().getProductIndexerService();
+            productIndexerService.createIndexIfNotExists();
+
+            // Category index
+            CategoryIndexerService categoryIndexerService = ServiceLocator.instance().getCategoryIndexerService();
+            categoryIndexerService.createIndexIfNotExists();
+        }
 	}
 
     /*public void stop() {
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/config/ConfigurationAction.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/config/ConfigurationAction.java
index 4ad8e536e250bcac5d6ba86039b9f58ab0ff20a3..22b0afdc4e777fac0f5011ecd2ab699d8827215f 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/config/ConfigurationAction.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/config/ConfigurationAction.java
@@ -37,7 +37,12 @@ public enum ConfigurationAction implements ConfigActionDef {
 
 	INDEX_BLOCKS(IndexerAction.class.getName() + "#indexation", "index"),
 
-	RESET_BLOCKS(IndexerAction.class.getName() + "#resetData", "reset-data");
+	RESET_BLOCKS(IndexerAction.class.getName() + "#resetCurrencyBlocks", "reset-data"),
+
+	RESET_PRODUCTS(IndexerAction.class.getName() + "#resetProducts", "reset-products"),
+
+	RESET_CATEGORIES(IndexerAction.class.getName() + "#resetCategories", "reset-categories");
+
 
 	public String action;
 	public String[] aliases;
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/BlockIndexerService.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/BlockIndexerService.java
index 831da9d84ab9bdf217277b0d7c9af5692b5dce2c..b8f992d7aa5c3f60f7ae31ba2cfa2bca16fa5ea9 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/BlockIndexerService.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/BlockIndexerService.java
@@ -245,7 +245,7 @@ public class BlockIndexerService extends BaseIndexerService {
                 .build();
         createIndexRequestBuilder.setSettings(indexSettings);
         createIndexRequestBuilder.addMapping(INDEX_TYPE_BLOCK, createIndexMapping());
-        CreateIndexResponse response = createIndexRequestBuilder.execute().actionGet();
+        createIndexRequestBuilder.execute().actionGet();
     }
 
     public void createBlock(BlockchainBlock block) throws DuplicateIndexIdException {
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/CategoryIndexerService.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/CategoryIndexerService.java
new file mode 100644
index 0000000000000000000000000000000000000000..548cb3d473e350f0a822a530a231ab1d188099e9
--- /dev/null
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/CategoryIndexerService.java
@@ -0,0 +1,248 @@
+package io.ucoin.ucoinj.elasticsearch.service;
+
+/*
+ * #%L
+ * UCoin Java Client :: Core API
+ * %%
+ * Copyright (C) 2014 - 2015 EIS
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the 
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public 
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/gpl-3.0.html>.
+ * #L%
+ */
+
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.google.gson.Gson;
+import io.ucoin.ucoinj.core.client.model.bma.gson.GsonUtils;
+import io.ucoin.ucoinj.core.exception.TechnicalException;
+import io.ucoin.ucoinj.core.util.StringUtils;
+import io.ucoin.ucoinj.elasticsearch.config.Configuration;
+import org.apache.lucene.util.BytesRef;
+import org.elasticsearch.action.admin.indices.create.CreateIndexRequestBuilder;
+import org.elasticsearch.action.bulk.BulkRequest;
+import org.elasticsearch.action.bulk.BulkRequestBuilder;
+import org.elasticsearch.action.index.IndexRequestBuilder;
+import org.elasticsearch.action.index.IndexResponse;
+import org.elasticsearch.client.Client;
+import org.elasticsearch.client.Requests;
+import org.elasticsearch.common.bytes.BytesArray;
+import org.elasticsearch.common.bytes.BytesReference;
+import org.elasticsearch.common.io.stream.InputStreamStreamInput;
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.common.xcontent.XContentBuilder;
+import org.elasticsearch.common.xcontent.XContentFactory;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.*;
+import java.nio.channels.GatheringByteChannel;
+
+/**
+ * Created by Benoit on 30/03/2015.
+ */
+public class CategoryIndexerService extends BaseIndexerService {
+
+    private static final Logger log = LoggerFactory.getLogger(CategoryIndexerService.class);
+
+    public static final String INDEX_NAME = "product";
+    public static final String INDEX_TYPE = "category";
+
+    private Gson gson;
+
+    private Configuration config;
+
+    public CategoryIndexerService() {
+        gson = GsonUtils.newBuilder().create();
+    }
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+        super.afterPropertiesSet();
+        config = Configuration.instance();
+    }
+
+    @Override
+    public void close() throws IOException {
+        super.close();
+        config = null;
+        gson = null;
+    }
+
+    /**
+     * Delete currency index, and all data
+     * @throws JsonProcessingException
+     */
+    public void deleteIndex() throws JsonProcessingException {
+        deleteIndexIfExists(INDEX_NAME);
+    }
+
+
+    public boolean existsIndex() {
+        return super.existsIndex(INDEX_NAME);
+    }
+
+    /**
+     * Create index need for currency registry, if need
+     */
+    public void createIndexIfNotExists() {
+        try {
+            if (!existsIndex(INDEX_NAME)) {
+                createIndex();
+            }
+        }
+        catch(JsonProcessingException e) {
+            throw new TechnicalException(String.format("Error while creating index [%s]", INDEX_NAME));
+        }
+    }
+
+    /**
+     * Create index need for category registry
+     * @throws JsonProcessingException
+     */
+    public void createIndex() throws JsonProcessingException {
+        log.info(String.format("Creating index [%s/%s]", INDEX_NAME, INDEX_TYPE));
+
+        CreateIndexRequestBuilder createIndexRequestBuilder = getClient().admin().indices().prepareCreate(INDEX_NAME);
+        Settings indexSettings = Settings.settingsBuilder()
+                .put("number_of_shards", 1)
+                .put("number_of_replicas", 1)
+                .put("analyzer", createDefaultAnalyzer())
+                .build();
+        createIndexRequestBuilder.setSettings(indexSettings);
+        createIndexRequestBuilder.addMapping(INDEX_TYPE, createIndexMapping());
+        createIndexRequestBuilder.execute().actionGet();
+    }
+
+    /**
+     *
+     * @param jsonCategory
+     * @return the product id
+     */
+    public String indexCategoryFromJson(String jsonCategory) {
+        if (log.isDebugEnabled()) {
+            log.debug("Indexing a category");
+        }
+
+        // Preparing indexation
+        IndexRequestBuilder indexRequest = getClient().prepareIndex(INDEX_NAME, INDEX_TYPE)
+                .setSource(jsonCategory);
+
+        // Execute indexation
+        IndexResponse response = indexRequest
+                .setRefresh(false)
+                .execute().actionGet();
+
+        return response.getId();
+    }
+
+
+    public void initCategories() {
+        if (log.isDebugEnabled()) {
+            log.debug("Initializing all categories");
+        }
+
+        BulkRequest bulkRequest = Requests.bulkRequest();
+
+        InputStream ris = null;
+        try {
+            ris = getClass().getClassLoader().getResourceAsStream("categories-bulk-insert.json");
+            if (ris == null) {
+                throw new TechnicalException(String.format("Could not retrieve data file [%s] need to fill index [%s]: ", "categories-bulk-insert.json", INDEX_NAME));
+            }
+
+            StringBuilder builder = new StringBuilder();
+            BufferedReader bf = new BufferedReader(new InputStreamReader(ris));
+            String line = bf.readLine();
+            while(line != null) {
+                if (StringUtils.isNotBlank(line)) {
+                    if (log.isDebugEnabled()) {
+                        log.debug("Add to category bulk: " + line);
+                    }
+                    builder.append(line).append('\n');
+                }
+                line = bf.readLine();
+            }
+
+            byte[] data = builder.toString().getBytes();
+            bulkRequest.add(new BytesArray(data), INDEX_NAME, INDEX_TYPE, false);
+
+/*
+            InputStreamStreamInput is = new InputStreamStreamInput(ris);
+            bulkRequest.readFrom(is);*/
+        } catch(Exception e) {
+            throw new TechnicalException(String.format("Error while initializing data [%s]", INDEX_NAME), e);
+        }
+        finally {
+            if (ris != null) {
+                try  {
+                    ris.close();
+                }
+                catch(IOException e) {
+                    // Silent is gold
+                }
+            }
+        }
+
+        try {
+            getClient().bulk(bulkRequest).actionGet();
+        } catch(Exception e) {
+            throw new TechnicalException(String.format("Error while initializing data [%s]", INDEX_NAME), e);
+        }
+    }
+
+    /* -- Internal methods -- */
+
+
+    public XContentBuilder createIndexMapping() {
+        try {
+            XContentBuilder mapping = XContentFactory.jsonBuilder().startObject().startObject(INDEX_TYPE)
+                    .startObject("properties")
+
+                    // name
+                    .startObject("name")
+                    .field("type", "string")
+                    .endObject()
+
+                    // description
+                    /*.startObject("description")
+                    .field("type", "string")
+                    .endObject()*/
+
+                    // parent
+                    .startObject("parent")
+                    .field("type", "string")
+                    .endObject()
+
+                    // tags
+                    /*.startObject("tags")
+                    .field("type", "completion")
+                    .field("search_analyzer", "simple")
+                    .field("analyzer", "simple")
+                    .field("preserve_separators", "false")
+                    .endObject()*/
+
+                    .endObject()
+                    .endObject().endObject();
+
+            return mapping;
+        }
+        catch(IOException ioe) {
+            throw new TechnicalException(String.format("Error while getting mapping for index [%s/%s]: %s", INDEX_NAME, INDEX_TYPE, ioe.getMessage()), ioe);
+        }
+    }
+
+}
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/CurrencyIndexerService.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/CurrencyIndexerService.java
index 4fb885e599d25cb783b025c43a47a733c753a02b..fb7589f9a4ffce884b2eab0ce0a179daa4737246 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/CurrencyIndexerService.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/CurrencyIndexerService.java
@@ -136,42 +136,17 @@ public class CurrencyIndexerService extends BaseIndexerService {
      * @throws JsonProcessingException
      */
     public void createIndex() throws JsonProcessingException {
-        log.info(String.format("Creating index [%s]", INDEX_NAME));
+        log.info(String.format("Creating index [%s/]", INDEX_NAME, INDEX_TYPE_SIMPLE));
 
         CreateIndexRequestBuilder createIndexRequestBuilder = getClient().admin().indices().prepareCreate(INDEX_NAME);
-        try {
-
-            Settings indexSettings = Settings.settingsBuilder()
-                    .put("number_of_shards", 1)
-                    .put("number_of_replicas", 1)
-                    .put("analyzer", createDefaultAnalyzer())
-                    .build();
-            createIndexRequestBuilder.setSettings(indexSettings);
-
-            XContentBuilder mapping = XContentFactory.jsonBuilder().startObject().startObject(INDEX_TYPE_SIMPLE)
-                    .startObject("properties")
-                    .startObject("currencyName")
-                    .field("type", "string")
-                    .endObject()
-                    .startObject("memberCount")
-                    .field("type", "integer")
-                    .endObject()
-                    .startObject("tags")
-                    .field("type", "completion")
-                    .field("search_analyzer", "simple")
-                    .field("analyzer", "simple")
-                    .field("preserve_separators", "false")
-                    .endObject()
-                    .endObject()
-                    .endObject().endObject();
-
-            createIndexRequestBuilder.addMapping(INDEX_TYPE_SIMPLE, mapping);
-
-        }
-        catch(IOException ioe) {
-            throw new TechnicalException("Error while preparing index: " + ioe.getMessage(), ioe);
-        }
-        CreateIndexResponse response = createIndexRequestBuilder.execute().actionGet();
+        Settings indexSettings = Settings.settingsBuilder()
+                .put("number_of_shards", 1)
+                .put("number_of_replicas", 1)
+                .put("analyzer", createDefaultAnalyzer())
+                .build();
+        createIndexRequestBuilder.setSettings(indexSettings);
+        createIndexRequestBuilder.addMapping(INDEX_TYPE_SIMPLE, createIndexMapping());
+        createIndexRequestBuilder.execute().actionGet();
     }
 
     /**
@@ -480,6 +455,39 @@ public class CurrencyIndexerService extends BaseIndexerService {
 
     /* -- Internal methods -- */
 
+    public XContentBuilder createIndexMapping() {
+        try {
+            XContentBuilder mapping = XContentFactory.jsonBuilder().startObject().startObject(INDEX_TYPE_SIMPLE)
+                .startObject("properties")
+
+                // currency name
+                .startObject("currencyName")
+                .field("type", "string")
+                .endObject()
+
+                // member count
+                .startObject("memberCount")
+                .field("type", "integer")
+                .endObject()
+
+                // tags
+                .startObject("tags")
+                .field("type", "completion")
+                .field("search_analyzer", "simple")
+                .field("analyzer", "simple")
+                .field("preserve_separators", "false")
+
+                .endObject()
+                .endObject()
+                .endObject().endObject();
+
+            return mapping;
+        }
+        catch(IOException ioe) {
+            throw new TechnicalException(String.format("Error while getting mapping for index [%s/%s]: %s", INDEX_NAME, INDEX_TYPE_SIMPLE, ioe.getMessage()), ioe);
+        }
+    }
+
     protected void createCurrency(Currency currency) throws DuplicateIndexIdException, JsonProcessingException {
         ObjectUtils.checkNotNull(currency, "currency could not be null") ;
         ObjectUtils.checkNotNull(currency.getCurrencyName(), "currency attribute 'currencyName' could not be null");
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ElasticSearchService.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ElasticSearchService.java
index ac23afc8d55b160a05a48f4bc8c1018b486accc1..eeb3de8f5e602128ef2e51eaebc58229dae077b1 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ElasticSearchService.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ElasticSearchService.java
@@ -188,6 +188,8 @@ public class ElasticSearchService implements Bean,InitializingBean, Closeable {
                 .put("path.home", config.getBasedir())
                 .put("path.data", config.getDataDirectory())
                 .put("path.plugins", config.getPluginsDirectory())
+                // TODO
+                .put("http.cors.enabled", Boolean.TRUE.toString())
                 .build();
 
         // Create a node builder
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ProductIndexerService.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ProductIndexerService.java
new file mode 100644
index 0000000000000000000000000000000000000000..dd9ebd03c0dcef9d84cd9359f5be588cb3460379
--- /dev/null
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ProductIndexerService.java
@@ -0,0 +1,248 @@
+package io.ucoin.ucoinj.elasticsearch.service;
+
+/*
+ * #%L
+ * UCoin Java Client :: Core API
+ * %%
+ * Copyright (C) 2014 - 2015 EIS
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the 
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public 
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/gpl-3.0.html>.
+ * #L%
+ */
+
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.google.common.base.Objects;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.gson.Gson;
+import io.ucoin.ucoinj.core.client.model.bma.BlockchainBlock;
+import io.ucoin.ucoinj.core.client.model.bma.BlockchainParameters;
+import io.ucoin.ucoinj.core.client.model.bma.EndpointProtocol;
+import io.ucoin.ucoinj.core.client.model.bma.gson.GsonUtils;
+import io.ucoin.ucoinj.core.client.model.bma.gson.JsonAttributeParser;
+import io.ucoin.ucoinj.core.client.model.elasticsearch.Currency;
+import io.ucoin.ucoinj.core.client.model.local.Peer;
+import io.ucoin.ucoinj.core.client.service.bma.BlockchainRemoteService;
+import io.ucoin.ucoinj.core.client.service.bma.NetworkRemoteService;
+import io.ucoin.ucoinj.core.client.service.bma.WotRemoteService;
+import io.ucoin.ucoinj.core.client.service.exception.HttpBadRequestException;
+import io.ucoin.ucoinj.core.client.service.exception.JsonSyntaxException;
+import io.ucoin.ucoinj.core.exception.TechnicalException;
+import io.ucoin.ucoinj.core.model.ProgressionModel;
+import io.ucoin.ucoinj.core.model.ProgressionModelImpl;
+import io.ucoin.ucoinj.core.util.CollectionUtils;
+import io.ucoin.ucoinj.core.util.ObjectUtils;
+import io.ucoin.ucoinj.core.util.StringUtils;
+import io.ucoin.ucoinj.elasticsearch.config.Configuration;
+import io.ucoin.ucoinj.elasticsearch.service.exception.DuplicateIndexIdException;
+import org.apache.commons.lang3.ArrayUtils;
+import org.elasticsearch.action.ActionFuture;
+import org.elasticsearch.action.admin.indices.create.CreateIndexRequestBuilder;
+import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
+import org.elasticsearch.action.bulk.BulkItemResponse;
+import org.elasticsearch.action.bulk.BulkRequestBuilder;
+import org.elasticsearch.action.bulk.BulkResponse;
+import org.elasticsearch.action.index.IndexRequestBuilder;
+import org.elasticsearch.action.index.IndexResponse;
+import org.elasticsearch.action.search.SearchRequestBuilder;
+import org.elasticsearch.action.search.SearchResponse;
+import org.elasticsearch.action.search.SearchType;
+import org.elasticsearch.client.Client;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.common.util.concurrent.EsRejectedExecutionException;
+import org.elasticsearch.common.xcontent.XContentBuilder;
+import org.elasticsearch.common.xcontent.XContentFactory;
+import org.elasticsearch.index.query.QueryBuilders;
+import org.elasticsearch.search.SearchHit;
+import org.elasticsearch.search.SearchHitField;
+import org.elasticsearch.search.aggregations.AggregationBuilders;
+import org.elasticsearch.search.aggregations.metrics.max.Max;
+import org.elasticsearch.search.highlight.HighlightField;
+import org.elasticsearch.search.sort.SortOrder;
+import org.nuiton.i18n.I18n;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.*;
+
+/**
+ * Created by Benoit on 30/03/2015.
+ */
+public class ProductIndexerService extends BaseIndexerService {
+
+    private static final Logger log = LoggerFactory.getLogger(ProductIndexerService.class);
+
+    public static final String INDEX_NAME = "product";
+    public static final String INDEX_TYPE_SIMPLE = "simple";
+
+    private Gson gson;
+
+    private Configuration config;
+
+    private WotRemoteService wotRemoteService;
+
+    public ProductIndexerService() {
+        gson = GsonUtils.newBuilder().create();
+    }
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+        super.afterPropertiesSet();
+        wotRemoteService = ServiceLocator.instance().getWotRemoteService();
+        config = Configuration.instance();
+    }
+
+    @Override
+    public void close() throws IOException {
+        super.close();
+        wotRemoteService = null;
+        config = null;
+        gson = null;
+    }
+
+    /**
+     * Delete currency index, and all data
+     * @throws JsonProcessingException
+     */
+    public void deleteIndex() throws JsonProcessingException {
+        deleteIndexIfExists(INDEX_NAME);
+    }
+
+
+    public boolean existsIndex() {
+        return super.existsIndex(INDEX_NAME);
+    }
+
+    /**
+     * Create index need for currency registry, if need
+     */
+    public void createIndexIfNotExists() {
+        try {
+            if (!existsIndex(INDEX_NAME)) {
+                createIndex();
+            }
+        }
+        catch(JsonProcessingException e) {
+            throw new TechnicalException(String.format("Error while creating index [%s]", INDEX_NAME));
+        }
+    }
+
+    /**
+     * Create index need for product registry
+     * @throws JsonProcessingException
+     */
+    public void createIndex() throws JsonProcessingException {
+        log.info(String.format("Creating index [%s/%s]", INDEX_NAME, INDEX_TYPE_SIMPLE));
+
+        CreateIndexRequestBuilder createIndexRequestBuilder = getClient().admin().indices().prepareCreate(INDEX_NAME);
+        Settings indexSettings = Settings.settingsBuilder()
+                .put("number_of_shards", 1)
+                .put("number_of_replicas", 1)
+                .put("analyzer", createDefaultAnalyzer())
+                .build();
+        createIndexRequestBuilder.setSettings(indexSettings);
+        createIndexRequestBuilder.addMapping(INDEX_TYPE_SIMPLE, createIndexMapping());
+        createIndexRequestBuilder.execute().actionGet();
+    }
+
+    /**
+     *
+     * @param productJson
+     * @return the product id
+     */
+    public String indexProductFromJson(String productJson) {
+        if (log.isDebugEnabled()) {
+            log.debug("Indexing a product");
+        }
+
+        // Preparing indexation
+        IndexRequestBuilder indexRequest = getClient().prepareIndex(INDEX_NAME, INDEX_TYPE_SIMPLE)
+                .setSource(productJson);
+
+        // Execute indexation
+        IndexResponse response = indexRequest
+                .setRefresh(false)
+                .execute().actionGet();
+
+        return response.getId();
+    }
+
+    /* -- Internal methods -- */
+
+
+    public XContentBuilder createIndexMapping() {
+        try {
+            XContentBuilder mapping = XContentFactory.jsonBuilder().startObject().startObject(INDEX_TYPE_SIMPLE)
+                    .startObject("properties")
+
+                    // title
+                    .startObject("title")
+                    .field("type", "string")
+                    .endObject()
+
+                    // description
+                    .startObject("description")
+                    .field("type", "string")
+                    .endObject()
+
+                    // time
+                    .startObject("time")
+                    .field("type", "integer")
+                    .endObject()
+
+                    // issuer
+                    .startObject("issuer")
+                    .field("type", "string")
+                    .endObject()
+
+                    // issuer
+                    .startObject("location")
+                    .field("type", "geo_point")
+                    .endObject()
+
+                    // categories
+                    .startObject("categories")
+                    .field("type", "nested")
+                    .startObject("properties")
+                    .startObject("cat1") // cat1
+                    .field("type", "string")
+                    .endObject()
+                    .startObject("cat2") // cat2
+                    .field("type", "string")
+                    .endObject()
+                    .endObject()
+                    .endObject()
+
+                    // tags
+                    .startObject("tags")
+                    .field("type", "completion")
+                    .field("search_analyzer", "simple")
+                    .field("analyzer", "simple")
+                    .field("preserve_separators", "false")
+                    .endObject()
+
+                    .endObject()
+                    .endObject().endObject();
+
+            return mapping;
+        }
+        catch(IOException ioe) {
+            throw new TechnicalException(String.format("Error while getting mapping for index [%s/%s]: %s", INDEX_NAME, INDEX_TYPE_SIMPLE, ioe.getMessage()), ioe);
+        }
+    }
+
+}
diff --git a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ServiceLocator.java b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ServiceLocator.java
index 5e9918821ece7bd01fc453acc561dc7f7da27d30..ec49163e131f010b5a6bee846fbf14924daf0b25 100644
--- a/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ServiceLocator.java
+++ b/ucoinj-elasticsearch/src/main/java/io/ucoin/ucoinj/elasticsearch/service/ServiceLocator.java
@@ -62,4 +62,13 @@ public class ServiceLocator extends io.ucoin.ucoinj.core.client.service.ServiceL
     public ExecutorService getExecutorService() {
         return getBean(ExecutorService.class);
     }
+
+    public ProductIndexerService getProductIndexerService() {
+        return getBean(ProductIndexerService.class);
+    }
+
+    public CategoryIndexerService getCategoryIndexerService() {
+        return getBean(CategoryIndexerService.class);
+    }
+
 }
diff --git a/ucoinj-elasticsearch/src/main/resources/META-INF/services/io.ucoin.ucoinj.core.beans.Bean b/ucoinj-elasticsearch/src/main/resources/META-INF/services/io.ucoin.ucoinj.core.beans.Bean
index 7335329fc0f4622db856b48d1e2db1633930be16..71b3337f6991940a68763d1151c41946d871c86d 100644
--- a/ucoinj-elasticsearch/src/main/resources/META-INF/services/io.ucoin.ucoinj.core.beans.Bean
+++ b/ucoinj-elasticsearch/src/main/resources/META-INF/services/io.ucoin.ucoinj.core.beans.Bean
@@ -12,6 +12,8 @@ io.ucoin.ucoinj.core.client.dao.mem.MemoryCurrencyDaoImpl
 io.ucoin.ucoinj.core.client.dao.mem.MemoryPeerDaoImpl
 io.ucoin.ucoinj.elasticsearch.service.ElasticSearchService
 io.ucoin.ucoinj.elasticsearch.service.CurrencyIndexerService
+io.ucoin.ucoinj.elasticsearch.service.ProductIndexerService
 io.ucoin.ucoinj.elasticsearch.service.BlockIndexerService
 io.ucoin.ucoinj.elasticsearch.service.ExecutorServiceImpl
-io.ucoin.ucoinj.elasticsearch.client.CurrencyIndexerClientService
+io.ucoin.ucoinj.elasticsearch.service.CategoryIndexerService
+
diff --git a/ucoinj-elasticsearch/src/main/resources/categories-bulk-insert.json b/ucoinj-elasticsearch/src/main/resources/categories-bulk-insert.json
new file mode 100644
index 0000000000000000000000000000000000000000..c19ddf13f2d397fc4e0c5acc66115b04df3b44ea
--- /dev/null
+++ b/ucoinj-elasticsearch/src/main/resources/categories-bulk-insert.json
@@ -0,0 +1,151 @@
+{ "index": { "_id": "cat71"}}
+{ "name": "EMPLOI" , "parent": null}
+{ "index": { "_id": "cat33"}}
+{ "name": "Offres d'emploi", "parent": "cat33" }
+
+{ "index": { "_id": "cat1" }}
+{ "name": "VEHICULES"  , "parent": null}
+{ "index": { "_id": "cat2" }}
+{ "name": "Voitures" , "parent": "cat2" }
+{ "index": { "_id": "cat3" }}
+{ "name": "Motos" , "parent": "cat3" }
+{ "index": { "_id": "cat4" }}
+{ "name": "Caravaning" , "parent": "cat3" }
+{ "index": { "_id": "cat5" }}
+{ "name": "Utilitaires" , "parent": "cat3" }
+{ "index": { "_id": "cat6" }}
+{ "name": "Equipement Auto" , "parent": "cat3" }
+{ "index": { "_id": "cat44" }}
+{ "name": "Equipement Moto" , "parent": "cat3" }
+{ "index": { "_id": "cat50" }}
+{ "name": "Equipement Caravaning" , "parent": "cat3" }
+{ "index": { "_id": "cat7" }}
+{ "name": "Nautisme" , "parent": "cat3" }
+{ "index": { "_id": "cat51" }}
+{ "name": "Equipement Nautisme" , "parent": "cat3" }
+
+{ "index": { "_id": "cat8" }}
+{ "name": "IMMOBILIER"  , "parent": null}
+{ "index": { "_id": "cat9" }}
+{ "name": "Ventes immobilières" , "parent": "cat8" }
+{ "index": { "_id": "cat10" }}
+{ "name": "Locations" , "parent": "cat8" }
+{ "index": { "_id": "cat11" }}
+{ "name": "Colocations" , "parent": "cat8" }
+{ "index": { "_id": "cat13" }}
+{ "name": "Bureaux &amp; Commerces" , "parent": "cat8" }
+
+{ "index": { "_id": "cat66" }}
+{ "name": "VACANCES"  , "parent": null}
+{ "index": { "_id": "cat12" }}
+{ "name": "Locations &amp; Gîtes" , "parent": "cat66" }
+{ "index": { "_id": "cat67" }}
+{ "name": "Chambres d'hôtes" , "parent": "cat66" }
+{ "index": { "_id": "cat68" }}
+{ "name": "Campings" , "parent": "cat66" }
+{ "index": { "_id": "cat69" }}
+{ "name": "Hôtels" , "parent": "cat66" }
+{ "index": { "_id": "cat70" }}
+{ "name": "Hébergements insolites" , "parent": "cat66" }
+
+{ "index": { "_id": "cat14" }}
+{ "name": "MULTIMEDIA"  , "parent": null}
+{ "index": { "_id": "cat15" }}
+{ "name": "Informatique" , "parent": "cat14" }
+{ "index": { "_id": "cat43" }}
+{ "name": "Consoles &amp; Jeux vidéo" , "parent": "cat14" }
+{ "index": { "_id": "cat16" }}
+{ "name": "Image &amp; Son" , "parent": "cat14" }
+{ "index": { "_id": "cat17" }}
+{ "name": "Téléphonie" , "parent": "cat14" }
+
+{ "index": { "_id": "cat18" }}
+{ "name": "MAISON"  , "parent": null}
+{ "index": { "_id": "cat19" }}
+{ "name": "Ameublement" , "parent": "cat18" }
+{ "index": { "_id": "cat20" }}
+{ "name": "Electroménager" , "parent": "cat18" }
+{ "index": { "_id": "cat45" }}
+{ "name": "Arts de la table" , "parent": "cat18" }
+{ "index": { "_id": "cat39" }}
+{ "name": "Décoration" , "parent": "cat18" }
+{ "index": { "_id": "cat46" }}
+{ "name": "Linge de maison" , "parent": "cat18" }
+{ "index": { "_id": "cat21" }}
+{ "name": "Bricolage" , "parent": "cat18" }
+{ "index": { "_id": "cat52" }}
+{ "name": "Jardinage" , "parent": "cat18" }
+{ "index": { "_id": "cat22" }}
+{ "name": "Vêtements" , "parent": "cat18" }
+{ "index": { "_id": "cat53" }}
+{ "name": "Chaussures" , "parent": "cat18" }
+{ "index": { "_id": "cat47" }}
+{ "name": "Accessoires &amp; Bagagerie" , "parent": "cat18" }
+{ "index": { "_id": "cat42" }}
+{ "name": "Montres &amp; Bijoux" , "parent": "cat18" }
+{ "index": { "_id": "cat23" }}
+{ "name": "Equipement bébé" , "parent": "cat18" }
+{ "index": { "_id": "cat54" }}
+{ "name": "Vêtements bébé" , "parent": "cat18" }
+
+{ "index": { "_id": "cat24" }}
+{ "name": "LOISIRS"  , "parent": null}
+{ "index": { "_id": "cat25" }}
+{ "name": "DVD / Films" , "parent": "cat24" }
+{ "index": { "_id": "cat26" }}
+{ "name": "CD / Musique" , "parent": "cat24" }
+{ "index": { "_id": "cat27" }}
+{ "name": "Livres" , "parent": "cat24" }
+{ "index": { "_id": "cat28" }}
+{ "name": "Animaux" , "parent": "cat24" }
+{ "index": { "_id": "cat55" }}
+{ "name": "Vélos" , "parent": "cat24" }
+{ "index": { "_id": "cat29" }}
+{ "name": "Sports &amp; Hobbies" }
+{ "index": { "_id": "cat30" }}
+{ "name": "Instruments de musique" , "parent": "cat24" }
+{ "index": { "_id": "cat40" }}
+{ "name": "Collection" , "parent": "cat24" }
+{ "index": { "_id": "cat41" }}
+{ "name": "Jeux &amp; Jouets" , "parent": "cat24" }
+{ "index": { "_id": "cat48" }}
+{ "name": "Vins &amp; Gastronomie" , "parent": "cat24" }
+
+{ "index": { "_id": "cat56" }}
+{ "name": "MATERIEL PROFESSIONNEL"  , "parent": null}
+{ "index": { "_id": "cat57" }}
+{ "name": "Matériel Agricole" , "parent": "cat56" }
+{ "index": { "_id": "cat58" }}
+{ "name": "Transport - Manutention" , "parent": "cat56" }
+{ "index": { "_id": "cat59" }}
+{ "name": "BTP - Chantier Gros-oeuvre" , "parent": "cat56" }
+{ "index": { "_id": "cat60" }}
+{ "name": "Outillage - Matériaux 2nd-oeuvre" , "parent": "cat56" }
+{ "index": { "_id": "cat32" }}
+{ "name": "Équipements Industriels" , "parent": "cat56" }
+{ "index": { "_id": "cat61" }}
+{ "name": "Restauration - Hôtellerie" , "parent": "cat56" }
+{ "index": { "_id": "cat62" }}
+{ "name": "Fournitures de Bureau" , "parent": "cat56" }
+{ "index": { "_id": "cat63" }}
+{ "name": "Commerces &amp; Marchés" , "parent": "cat56" }
+{ "index": { "_id": "cat64" }}
+{ "name": "Matériel Médical" , "parent": "cat56" }
+
+{ "index": { "_id": "cat31" }}
+{ "name": "SERVICES"  , "parent": null}
+{ "index": { "_id": "cat34" }}
+{ "name": "Prestations de services" , "parent": "cat31" }
+{ "index": { "_id": "cat35" }}
+{ "name": "Billetterie" , "parent": "cat31" }
+{ "index": { "_id": "cat49" }}
+{ "name": "Evénements" , "parent": "cat31" }
+{ "index": { "_id": "cat36" }}
+{ "name": "Cours particuliers" , "parent": "cat31" }
+{ "index": { "_id": "cat65" }}
+{ "name": "Covoiturage" , "parent": "cat31" }
+{ "index": { "_id": "cat37" }}
+
+{ "name": "DIVERS"  , "parent": null}
+{ "index": { "_id": "cat38" }}
+{ "name": "Autres" , "parent": "cat37" }