rest - 如何使用apollo客户端发出休息后请求？

Question

我知道我们也可以使用 apollo 执行休息请求，但我不知道如何执行发布请求，有人可以帮助我吗？

我的 REST post 请求端点是:<url>/transaction/getbyhash

有效负载:

{"hash":"4e23f9e1d1729996de46fc94d28475b4614f101d72a98f221493f900dc33e0c2"}

有人可以帮我使用 apollo 客户端和 graphql-tag 编写相同的请求吗？

Answer 1

您可以使用apollo-link-rest在 GraphQL 查询中调用 REST API。

例如

rest-api-server.ts:

import express from 'express';
import faker from 'faker';

const app = express();
const port = 3000;

app.use(express.json());
app.post('/api/transaction/getbyhash', (req, res) => {
  console.log(req.body);
  res.json({
    email: faker.internet.email(),
    name: faker.name.findName(),
  });
});

app.listen(port, () => console.log(`HTTP server is listening on http://localhost:${port}`));

client.ts:

import { ApolloClient } from 'apollo-client';
import { RestLink } from 'apollo-link-rest';
import { InMemoryCache } from 'apollo-cache-inmemory';
import gql from 'graphql-tag';
import fetch from 'isomorphic-fetch';

const restLink = new RestLink({
  uri: 'http://localhost:3000/api/',
  customFetch: fetch,
  headers: {
    'Content-Type': 'application/json',
  },
});

const client = new ApolloClient({
  cache: new InMemoryCache(),
  link: restLink,
});

const getbyhashQuery = gql`
  fragment Payload on REST {
    hash: String
  }
  query Me($input: Payload!) {
    person(input: $input) @rest(type: "Person", method: "POST", path: "transaction/getbyhash") {
      email
      name
    }
  }
`;
const payload = { hash: '4e23f9e1d1729996de46fc94d28475b4614f101d72a98f221493f900dc33e0c2' };

client.query({ query: getbyhashQuery, variables: { input: payload } }).then((res) => {
  console.log(res.data);
});

日志:

{
  person: {
    email: '<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="df9dada6bcbaeceb9fb8b2beb6b3f1bcb0b2" rel="noreferrer noopener nofollow">[email protected]</a>',
    name: 'Miss Jaren Senger',
    __typename: 'Person'
  }
}

软件包版本:

"apollo-cache-inmemory": "^1.6.6",
"apollo-client": "^2.6.10",
"apollo-link": "^1.2.14",
"apollo-link-rest": "^0.7.3",
"graphql-anywhere": "^4.2.7",
"graphql": "^14.6.0",
"isomorphic-fetch": "^3.0.0",