# Packages
# README
dfuse GraphQL API Services for Blockchains
This service is the API for querying blockchain data using GraphQL. It is part of dfuse.
Installation
See the different protocol-specific dfuse binaries at https://github.com/dfuse-io/dfuse#protocols
Current dgraphql implementations:
- dfuse for EOSIO
- dfuse for Ethereum, soon to be open sourced
Usage
Connecting from command-line clients
-
Using https://github.com/Gavinpub/ws (which supports subprotocol negotiation)
ws -s graphql-ws ws://127.0.0.1:8080/graphql
{"id":"3","type":"connection_init","payload":{"Authorization":"Bearer ......"},"variables":null}}
{"id":"3","type":"start","payload":{"query":"subscription{searchTransactionsForward(query: "status:executed", lowBlockNum:0, highBlockNum:0){ trace{ block { num } id }}}","variables":null}}
{"id":"3","type":"start","payload":{"query":"subscription{searchTransactionsForward(query: "status:executed", lowBlockNum:0, highBlockNum:0){ trace{ block { num } id }}}","variables":null}}
-
Using curl:
curl http://localhost:8080/graphql -XPOST -d '{"query": "{ searchTransactionsForward(limit: 10, query: "status:executed") { cursor } }"}' -H "Authorization: Bearer $DFUSE" | jq .
curl http://localhost:8080/graphql -XPOST -d '{"query": "{ blockIDByTime(time: "2019-01-01T00:00:00Z") { time num } }"}' -H "Authorization: Bearer $DFUSE" | jq .
Contributing
Issues and PR in this repo related strictly to the core dgraphql API engine
Report any protocol-specific issues in their respective repositories
Please first refer to the general dfuse contribution guide, if you wish to contribute to this code base.
This codebase uses unit tests extensively, please write and run tests.