168 lines
5.1 KiB
Plaintext
168 lines
5.1 KiB
Plaintext
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @flow strict
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*/
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type GraphiQLData = {
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query: ?string,
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variables: ?{ [name: string]: mixed },
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operationName: ?string,
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result?: mixed,
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};
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// Current latest version of GraphiQL.
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const GRAPHIQL_VERSION = '0.12.0';
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// Ensures string values are safe to be used within a <script> tag.
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function safeSerialize(data) {
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return data ? JSON.stringify(data).replace(/\//g, '\\/') : 'undefined';
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}
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/**
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* When express-graphql receives a request which does not Accept JSON, but does
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* Accept HTML, it may present GraphiQL, the in-browser GraphQL explorer IDE.
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*
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* When shown, it will be pre-populated with the result of having executed the
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* requested query.
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*/
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export function renderGraphiQL(data: GraphiQLData): string {
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const queryString = data.query;
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const variablesString = data.variables
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? JSON.stringify(data.variables, null, 2)
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: null;
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const resultString = data.result
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? JSON.stringify(data.result, null, 2)
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: null;
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const operationName = data.operationName;
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return `<!--
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The request to this GraphQL server provided the header "Accept: text/html"
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and as a result has been presented GraphiQL - an in-browser IDE for
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exploring GraphQL.
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If you wish to receive JSON, provide the header "Accept: application/json" or
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add "&raw" to the end of the URL within a browser.
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-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>GraphiQL</title>
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<meta name="robots" content="noindex" />
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<meta name="referrer" content="origin" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<style>
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body {
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margin: 0;
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overflow: hidden;
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}
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#graphiql {
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height: 100vh;
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}
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</style>
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<link href="//cdn.jsdelivr.net/npm/graphiql@${GRAPHIQL_VERSION}/graphiql.css" rel="stylesheet" />
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<script src="//cdn.jsdelivr.net/es6-promise/4.0.5/es6-promise.auto.min.js"></script>
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<script src="//cdn.jsdelivr.net/fetch/0.9.0/fetch.min.js"></script>
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<script src="//cdn.jsdelivr.net/react/15.4.2/react.min.js"></script>
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<script src="//cdn.jsdelivr.net/react/15.4.2/react-dom.min.js"></script>
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<script src="//cdn.jsdelivr.net/npm/graphiql@${GRAPHIQL_VERSION}/graphiql.min.js"></script>
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</head>
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<body>
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<div id="graphiql">Loading...</div>
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<script>
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// Collect the URL parameters
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var parameters = {};
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window.location.search.substr(1).split('&').forEach(function (entry) {
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var eq = entry.indexOf('=');
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if (eq >= 0) {
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parameters[decodeURIComponent(entry.slice(0, eq))] =
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decodeURIComponent(entry.slice(eq + 1));
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}
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});
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// Produce a Location query string from a parameter object.
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function locationQuery(params) {
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return '?' + Object.keys(params).filter(function (key) {
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return Boolean(params[key]);
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}).map(function (key) {
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return encodeURIComponent(key) + '=' +
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encodeURIComponent(params[key]);
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}).join('&');
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}
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// Derive a fetch URL from the current URL, sans the GraphQL parameters.
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var graphqlParamNames = {
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query: true,
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variables: true,
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operationName: true
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};
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var otherParams = {};
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for (var k in parameters) {
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if (parameters.hasOwnProperty(k) && graphqlParamNames[k] !== true) {
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otherParams[k] = parameters[k];
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}
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}
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var fetchURL = locationQuery(otherParams);
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// Defines a GraphQL fetcher using the fetch API.
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function graphQLFetcher(graphQLParams) {
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return fetch(fetchURL, {
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method: 'post',
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headers: {
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'Accept': 'application/json',
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'Content-Type': 'application/json'
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},
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body: JSON.stringify(graphQLParams),
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credentials: 'include',
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}).then(function (response) {
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return response.json();
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});
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}
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// When the query and variables string is edited, update the URL bar so
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// that it can be easily shared.
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function onEditQuery(newQuery) {
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parameters.query = newQuery;
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updateURL();
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}
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function onEditVariables(newVariables) {
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parameters.variables = newVariables;
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updateURL();
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}
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function onEditOperationName(newOperationName) {
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parameters.operationName = newOperationName;
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updateURL();
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}
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function updateURL() {
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history.replaceState(null, null, locationQuery(parameters));
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}
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// Render <GraphiQL /> into the body.
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ReactDOM.render(
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React.createElement(GraphiQL, {
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fetcher: graphQLFetcher,
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onEditQuery: onEditQuery,
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onEditVariables: onEditVariables,
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onEditOperationName: onEditOperationName,
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query: ${safeSerialize(queryString)},
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response: ${safeSerialize(resultString)},
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variables: ${safeSerialize(variablesString)},
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operationName: ${safeSerialize(operationName)},
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}),
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document.getElementById('graphiql')
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);
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</script>
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</body>
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</html>`;
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}
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