ElasticSearch Plugin to support for Peerplays

[bobinson]

ElasticSearch Plugin to support various dApps, API end points, REST APIs, demux etc.

User Story

The Elastic Search plugin can help Peerplays to scale easily at the same time providing easy to access, familiar end point to end users.

Impacts

• API (the application programming interface)
• Build (the build process or something prior to compiled code)
• CLI (the command line wallet)
• Deployment (the deployment process after building such as Docker, Gitlab, etc.)
• P2P (the peer-to-peer network for transaction/block propagation)
• Performance (system or user efficiency, etc.)
• Protocol (the blockchain logic, consensus, validation, etc.)
• Security (the security of system or user data, etc.)
• UX (the User Experience)
• Other (please add below)

Additional Context (optional)
REST API can be made easily available with Elastic Search Plugin

Community / PBSA check list

• Evaluate / Prioritize Feature Request
• Refine User Stories / Requirements
• Define Test Cases
• Design / Develop Solution
• Perform QA/Testing
• Update Documentation

[gladcow]

ElasticSearch plugin tracks operations and allows witnesses to use less RAM. To track specific objects (proposals, accounts, Peerplays-specific objects) es-objects plugin is used.

Related Bitshares pull requests to backport:

1. ElasticSearch plugin:
   Elasticsearch plugin bitshares/bitshares-core#444
   Fix history ids bitshares/bitshares-core#873
   Elasticsearch refactor bitshares/bitshares-core#1201
   add option elasticsearch-start-es-after-block to es plugin bitshares/bitshares-core#1458
   bitshares/bitshares-core@376f031
   elasticsearch history api #1682 bitshares/bitshares-core#1725

2. ES-objects plugin:
   es_objects plugin bitshares/bitshares-core#500
   refine es_objects plugin bitshares/bitshares-core#1271
   Add an adaptor to es_objects and template function to reduce code bitshares/bitshares-core#1429
   add es-objects-start-es-after-block option bitshares/bitshares-core#1541
   add genesis data to es_objects bitshares/bitshares-core#1717

[gladcow]

ElasticSearch 7.5.0 (the latest version at the moment) is working with BitShares plugin, as far as I can see. Version 7.4 was tested by BitShares: https://github.com/bitshares/bitshares-core/wiki/ElasticSearch-Plugin#installation . I think we can use the latest version of the ElasticSearch.

[gladcow]

Peerplays-specific objects to add to es-objects plugin indecies: betting markets, bets operations, sports, tournaments, games operations, btc operations.

[pbattu123]

Elasticsearch plugin introduced into peerplays and it is available from release @1.4.3