एक एप्लिकेशन से क्वेरी करना

1https://api.studio.thegraph.com/query/<ID>/<SUBGRAPH_NAME>/<VERSION>

1https://gateway.thegraph.com/api/<API_KEY>/subgraphs/id/<SUBGRAPH_ID>

1yarn add -D @graphprotocol/client-cli2# or, with NPM:3npm install --save-dev @graphprotocol/client-cli

1query ExampleQuery {2  # this one is coming from compound-v23  markets(first: 7) {4    borrowRate5    cash6    collateralFactor7  }8  # this one is coming from uniswap-v29  pair(id: "0x00004ee988665cdda9a1080d5792cecd16dc1220") {10    id11    token0 {12      id13      symbol14      name15    }16    token1 {17      id18      symbol19      name20    }21  }22}

1# .graphclientrc.yml2sources:3  - name: uniswapv24    handler:5      graphql:6        endpoint: https://gateway.thegraph.com/api/<API_KEY>/subgraphs/id/<SUBGRAPH_ID>7  - name: compoundv28    handler:9      graphql:10        endpoint: https://gateway.thegraph.com/api/<API_KEY>/subgraphs/id/<SUBGRAPH_ID>1112documents:13  - ./src/example-query.graphql

1graphclient build

1import React, { useEffect } from 'react'2// ...3// we import types and typed-graphql document from the generated code (`..graphclient/`)4import { ExampleQueryDocument, ExampleQueryQuery, execute } from '../.graphclient'56function App() {7  const [data, setData] = React.useState<ExampleQueryQuery>()89  useEffect(() => {10    execute(ExampleQueryDocument, {}).then((result) => {11      setData(result?.data)12    })13  }, [setData])14  return (15    <div className="App">16      <header className="App-header">17        <img src={logo} className="App-logo" alt="logo" />18        <p>Graph Client Example</p>19        <fieldset>20          {data && (21            <form>22              <label>Data</label>23              <br />24              <textarea value={JSON.stringify(data, null, 2)} readOnly rows={25} />25            </form>26          )}27        </fieldset>28      </header>29    </div>30  )31}3233export default App

1npm install @apollo/client graphql

1import { ApolloClient, InMemoryCache, gql } from '@apollo/client'23const APIURL = 'https://gateway.thegraph.com/api/<API_KEY>/subgraphs/id/<SUBGRAPH_ID>'45const tokensQuery = `6  query {7    tokens {8      id9      tokenID10      contentURI11      metadataURI12    }13  }14`1516const client = new ApolloClient({17  uri: APIURL,18  cache: new InMemoryCache(),19})2021client22  .query({23    query: gql(tokensQuery),24  })25  .then((data) => console.log('Subgraph data: ', data))26  .catch((err) => {27    console.log('Error fetching data: ', err)28  })

1const tokensQuery = `2  query($first: Int, $orderBy: BigInt, $orderDirection: String) {3    tokens(4      first: $first, orderBy: $orderBy, orderDirection: $orderDirection5    ) {6      id7      tokenID8      contentURI9      metadataURI10    }11  }12`1314client15  .query({16    query: gql(tokensQuery),17    variables: {18      first: 10,19      orderBy: 'createdAtTimestamp',20      orderDirection: 'desc',21    },22  })23  .then((data) => console.log('Subgraph data: ', data))24  .catch((err) => {25    console.log('Error fetching data: ', err)26  })

1npm install urql graphql

1import { createClient } from 'urql'23const APIURL = 'https://gateway.thegraph.com/api/<API_KEY>/subgraphs/id/<SUBGRAPH_ID>'45const tokensQuery = `6  query {7    tokens {8      id9      tokenID10      contentURI11      metadataURI12    }13  }14`1516const client = createClient({17  url: APIURL,18})1920const data = await client.query(tokensQuery).toPromise()