clickhousegraphqlgo

clickhouse-graphql-go

GraphQL implementation for clickhouse in Go. This package stores real time streaming websocket data in clickhouse and uses GraphQL to consume the same.

Installation

go get github.com/ranjanrak/clickhouse-graphql-go

Usage

import (
    clickhousegraphqlgo "github.com/ranjanrak/clickhouse-graphql-go"
)

// Dump tick websocket data to clickhouse
// Pass list of instrument token for subscription to websocket feeds
clickhousegraphqlgo.ClickhouseDump([]uint32{779521, 256265, 1893123, 13209858})

// Run graphql server on clickhouse
clickhousegraphqlgo.GraphqlServer()

GraphQL query

query {
  Tick(instrument_token:1893123) {
    instrument_token
    timestamp
    lastprice
    volumetraded
    oi
  }
}

Response

{
  "data": {
    "Tick": {
      "instrument_token": 1893123,
      "lastprice": 74.245,
      "oi": 1990638,
      "timestamp": "2021-08-24T16:38:39+05:30",
      "volumetraded": 1099802
    }
  }
}

Sample query on graphiQL