Namada Transfer indexer/api server

App to index transfers to postgres and serve them to a json api endpoint.
Front-end: https://github.com/vknowable/transfer-map

Usage

1. Start the postgres container:

cd docker-compose
docker compose -f postgres-docker-compose.yml up -d

2. Run db migrations (from project root dir)

cargo install sqlx-cli
sqlx migrate run

3. In the .env file, set RPC to the url of your node/rpc, LISTEN_PORT to the port for the server to listen on, and ALLOW_FROM to the url of your front-end app. Then, start the indexer/server:

cargo run

4. Get recent tx's

curl localhost:8000/api/txdata

ToDo/Known issues:

• doesn't check if tx was successful before indexing... need to check block_results endpoint at corresponding height and check by tx hash to see if successful
• api only serves 100 txs ordered by txhash; needs to be ordered by timestamp and support for pagination added
• support could be added for parameters (eg: all transfers where source='tnam...')
• only transfers (transparent) are indexed; all other transaction types are ignored