I am attempting to use an Apollo Client on a node.js server to interface with another GraphQL API using the following code:
import fetch from 'node-fetch'
import { createHttpLink } from 'apollo-link-http'
import ApolloClient from 'apollo-boost'
import { API_URL } from '...'
const client = new ApolloClient({
link: createHttpLink({
uri: API_URL,
fetch: fetch,
}),
})
Which yields the following error:
module initialization error: Error
fetch is not found globally and no fetcher passed, to fix pass a fetch for
your environment like https://www.npmjs.com/package/node-fetch.
For example:
import fetch from 'node-fetch';
import { createHttpLink } from 'apollo-link-http';
const link = createHttpLink({ uri: '/graphql', fetch: fetch });
at Object.checkFetcher (/var/task/node_modules/apollo-link-http-common/lib/bundle.umd.js:78:19)
at createHttpLink (/var/task/node_modules/apollo-link-http/lib/bundle.umd.js:32:30)
at new HttpLink (/var/task/node_modules/apollo-link-http/lib/bundle.umd.js:203:38)
at new DefaultClient (/var/task/node_modules/apollo-boost/lib/index.js:80:24)
I understand that the Apollo Client by default is expecting to be run in a browser context where a fetch
method will be available, and that in a node.js I need to polyfill or otherwise provide a fetch
method, but I having trouble figuring out exactly how to do this.
Following the example code at https://www.apollographql.com/docs/link/#apollo-client it appears that I should be able to pass this information in using the link
option, and reading the apollo-boost
source code seems to suggest that you can pass this information in using fetcherOptions
, but neither of these solutions seem to work.
Can anyone provide some example code for initializing an Apollo Client in node.js with a fetcher?
For reference here is my package.json
{
"name": "API-Service",
"version": "1.0.0",
"description": "",
"private": true,
"scripts": {},
"dependencies": {
"apollo-boost": "^0.1.6",
"apollo-link-http": "^1.5.4",
"graphql": "^0.13.2",
"babel-polyfill": "^6.26.0",
"json-rules-engine": "^2.1.0",
"node-fetch": "^2.1.2",
"mysql": "^2.15.0"
}
}
If you still want to use Apollo Boost in Node.js but need to polyfill the native fetch API of the browser, try out cross-fetch. I used it for my minimal example over here. And that's how it can be used after installing it:
import 'cross-fetch/polyfill';
import ApolloClient from 'apollo-boost';
const client = new ApolloClient({
uri: 'https://api.domain.com/graphql',
});