is_member() requests all members to know if an identity is member will explose

is_member() is currently retrieving the whole list of members from /wot/members to know if an identity is a member or not.

The more members it will be, the more this request will slows down silkaj to determine if an identity is member or not.

The usage of /wot/identity-of/<id/pubkey> says if an identity is member or not when sending error code.

Todo

  • remove not used get_pubkey_from_uid()
  • remove get_uid_from_pubkey()
  • Replace two uppers function with identity_of() which requests /wot/identity-of/<pubkey/uid> and only returns members identities with their pubkey and uid, which improves performances.
    • In case the identity is not member, try with /wot/lookup/* to know the corresponding uid/pubkey?
  • change is_member() as a wrapper of identity_of()
  • change usage in id, cert, tx, net, and blocks

If Silkaj requests several time at the same moment, we get a 429 Too Many Requests. #206 (closed) should solves this.

GVA API should allow one request for all needed identities.

Edited by Moul