How to use client.query without JSX components in Apollo Client?

问题

I'm trying to make a query in Apollo Client with React without returning a JSX component, just an object (the data object that is received when making a common query to Apollo Server).

I tried using <Query /> component, but it returns me a React Node and I only need an object. The documentation only explain methods that return JSX components at some point, when all that I'm looking to do is send a request and process the response in a callback.

Actually I'm trying this way (I'm using TypeScript in React):

import React from 'react';
import { withApollo } from 'react-apollo';
import gql from 'graphql-tag';

const MY_QUERY = gql`
  query MY_QUERY {
    myQuery {
      attr1
      attr2
    }
  }
`;

const res = ({ client }: { client: any }) =>
  client
    .query(MY_QUERY)
    .then((data: { data: any }) => data);

withApollo(res);

console.log(res);

With this, what I'm looking is for a object like

{
  "data": {
    "myQuery": [
      {
        "attr1": "something 1...",
        "attr2": "another thing 1..."
      },
      {
        "attr1": "something 2...",
        "attr2": "another thing 2..."
      },
      {
        "attr1": "something 3...",
        "attr2": "another thing 3..."
      }
    ]
  }
}

But what I'm receiving from the browser is

ƒ WithApollo(props) {
    var _this = _super.call(this, props) || this;

    _this.setWrappedInstance = _this.setWrappedInstance.bind(_this);
    return _this;
}

Any suggestion?

回答1:

Try this instead

class anyComponent extends React.Component<Props> {
   state = {
      results: null,
   }
   componentDidMount = async () => {
       const {client} = this.props;
       res = await client.query({query: MY_QUERY});
       console.log(res);
       this.setState({results: res})
   }
   render() {
       // check if any results exist (just an example)
       return results ? <AnyJsx results={results}/> : null;
   }
}
export default withApollo(anyComponent);

You were console logging the function instead of calling it to get its result You may need some lifecycle functions like componentDidMount to retrieve data

来源：https://stackoverflow.com/questions/54620761/how-to-use-client-query-without-jsx-components-in-apollo-client