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fetch-multipart-graphql
Advanced tools
Cross browser function to fetch and parse streaming multipart graphql responses.
Cross-browser function to fetch and parse streaming multipart graphql responses.
This allows you to efficiently fetch streamed GraphQL responses that use the @defer directive as supported by Apollo Server. It can be easily used in a Relay Modern network layer to support deferred queries.
In a Relay Network Layer:
import fetchMultipart from 'fetch-multipart-graphql';
import { Observable } from 'relay-runtime';
function fetchQuery(operation, variables) {
return Observable.create(sink => {
fetchMultipart('/graphql', {
method: 'POST',
headers: {
'content-type': 'application/json',
},
body: JSON.stringify({
query: operation.text,
variables,
}),
credentials: 'same-origin',
onNext: parts => sink.next(parts),
onError: err => sink.error(err),
onComplete: () => sink.complete(),
});
});
}
The credentials
param is passed to fetch
. For XHR requests, XMLHttpRequest.withCredentials
is mapped to true when credentials: 'include'
.
Tested in the latest Chrome, Firefox, Safari, Edge, and Internet Explorer 11. Requires a polyfill for TextEncoder/Decoder. Since only utf-8 encoding is required, it's recommended to use text-encoding-utf-8 to minimize impact on bundle size.
FAQs
Cross browser function to fetch and parse streaming multipart graphql responses.
The npm package fetch-multipart-graphql receives a total of 1,649 weekly downloads. As such, fetch-multipart-graphql popularity was classified as popular.
We found that fetch-multipart-graphql demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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