Hydra Indexer Gateway is a GraphQL server exposing the indexed Substrate data (primarily, extrinsics and events), indexed by Hydra Indexer.
The project is built using Warthog library.
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
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 |