Hydra Indexer Gateway
May 31, 2021 ยท View on GitHub
Hydra Indexer Gateway is a GraphQL server exposing the indexed Substrate data (primarily, extrinsics and events), indexed by Hydra Indexer.
Installation
The project is built using Warthog library.
Local development
For local development, first inspect env.yml and generate a dev .env file using run yarn config:dev. Then the server can be run with yarn start:dev
Production/Docker
For production a pre-built Docker image in recommended. The following environment variables must be set:
| Variable | Description |
|---|---|
| WARTHOG_STARTER_DB_DATABASE | Indexer database name |
| WARTHOG_STARTER_DB_HOST | Indexer database host |
| WARTHOG_STARTER_DB_PORT | Indexer database port |
| WARTHOG_STARTER_DB_USERNAME | User to access the indexer database |
| WARTHOG_STARTER_DB_PASSWORD | User password |
| WARTHOG_STARTER_REDIS_URI | Redis connection string (must be the same as used by the Indexer) |
| PORT | Port at which the GraphQL server will listen for connections |