Glasnost transformation into a GraphQL API server is now complete, access to Steem/Golos blockchain data is now possible using GraphQL queries.

Repos

Configuration

Glasnost now requires a PostgreSQL database.

You need to configure the following Postgres database parameters using the Docker ENV variables:

GLASNOST_DB
GLASNOST_DB_HOST
GLASNOST_DB_PORT
GLASNOST_DB_USERNAME
GLASNOST_DB_PASSWORD

Other parameters, such as PORT, STEEM_URL and GOLOS_URL, can be configured in the Docker file.

Changelog

Added an extractor for the Postgres database, which synchronizes new posts and comments in real time and looks back for comments over last 7 days
Added a /graphql GraphQL API endpoint with comments and comment objects (see examples below)
Added an interactive browser-based GraphiQL client at /graphiql route
Previous admin and static HTML pages were completely removed
Updated docker image
A lot of various bugfixes and improvements

Examples of GraphQL queries

{
  comments(blockchain: "steem", author: "ontofractal") {
    id,
    title,
    author,
    permlink,
    created,
    totalPayoutValue,
    pendingPayoutValue
  }
}

{
  comment(blockchain: "steem", author: "ontofractal", permlink: "glasnost-v0-12-released-now-with-postgresql-realtime-and-7-day-lookback-comments-data-sync-open-source-app-server-for-steem") {
    id,
    title,
    created,
    totalPayoutValue,
    pendingPayoutValue
  }
}

Road map

In the next release, I plan to expand the capabilities of GraphQL resolvers and add filters, sorting, and a new type of queries for statistics.

Among future features:

Convenient websockets APIs for accessing blockchain data
Performant, low latency APIs
Advanced filters and content display settings
real-time streams of enriched blockchain events

Technologies

Elixir
Phoenix
GraphQL
PostgreSQL

What's Glasnost?

Read more about Glasnost and its roadmap in the introduction post

Development process

Glasnost is a single code base developed simultaneously both for Steem and Golos blockchains. Sustainable Glasnost development is made possible by generous support of Steem and Golos communities and @cyberfund program to support Golos open source ecosystem. Read more about Golos and cyberfund open source support in this post by @hipster.

Feedback

Please submit bugs, issues or feature requests to Github. Also get in touch with me: ontofractal at protonmail.com or steemit.chat.

(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

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cryptomaker (63) 8 years ago

Realy good post.i resteem this post.best of luck

$0.00

gtg (75) 8 years ago

Keep up the good work, @ontofractal :-)

ladu (46) 8 years ago

Nice one

andybets (62) 8 years ago

This looks great! I'm not sure how I hadn't come across the project before.

Glasnost v0.13 released: GraphQL API for Steem blockchain