graphql-request/build/layers/0_functions/request.js

Minimal GraphQL client supporting Node and browsers for scripts or simple apps.

import { print } from 'graphql';
import { parseExecutionResult } from '../../lib/graphqlHTTP.js';
import { CONTENT_TYPE_GQL } from '../../lib/http.js';
/**
 * @see https://graphql.github.io/graphql-over-http/draft/
 */
export const request = async (input) => {
    const documentEncoded = typeof input.document === `string` ? input.document : print(input.document);
    const body = {
        query: documentEncoded,
        variables: input.variables,
        operationName: input.operationName,
    };
    const bodyEncoded = JSON.stringify(body);
    const requestObject = new Request(input.url, {
        method: `POST`,
        headers: new Headers({
            'accept': CONTENT_TYPE_GQL,
            ...Object.fromEntries(new Headers(input.headers).entries()),
        }),
        body: bodyEncoded,
    });
    const response = await fetch(requestObject);
    if (!response.ok) {
        throw new Error(`Request to GraphQL endpoint failed. (Status: ${String(response.status)})`);
    }
    const json = await response.json();
    const result = parseExecutionResult(json);
    return result;
};
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