2016-06-14 17:31:36 -07:00
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/*
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* Mostly taken straight from express-graphql, so see their licence
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* (https://github.com/graphql/express-graphql/blob/master/LICENSE)
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*/
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2016-06-15 20:35:48 -07:00
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// TODO: in the future, build the GraphiQL app on the server, so it does not
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// depend on any CDN and can be run offline.
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2016-06-29 15:30:47 -04:00
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/*
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* Arguments:
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*
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* - endpointURL: the relative or absolute URL for the endpoint which GraphiQL will make queries to
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* - (optional) query: the GraphQL query to pre-fill in the GraphiQL UI
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* - (optional) variables: a JS object of variables to pre-fill in the GraphiQL UI
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* - (optional) operationName: the operationName to pre-fill in the GraphiQL UI
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* - (optional) result: the result of the query to pre-fill in the GraphiQL UI
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2016-09-12 18:07:35 -04:00
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* - (optional) passHeader: a string that will be added to the header object.
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* For example "'Authorization': localStorage['Meteor.loginToken']" for meteor
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2016-06-29 15:30:47 -04:00
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*/
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2016-06-14 17:31:36 -07:00
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export type GraphiQLData = {
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endpointURL: string,
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query?: string,
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variables?: Object,
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operationName?: string,
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result?: Object,
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2017-01-23 13:10:42 +02:00
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passHeader?: string,
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2016-06-14 17:31:36 -07:00
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};
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// Current latest version of GraphiQL.
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2017-01-31 15:40:57 +01:00
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const GRAPHIQL_VERSION = '0.9.1';
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2016-06-14 17:31:36 -07:00
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2016-06-26 15:59:15 -04:00
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// Ensures string values are safe to be used within a <script> tag.
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2016-06-26 17:55:58 -04:00
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// TODO: I don't think that's the right escape function
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2016-06-14 17:31:36 -07:00
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function safeSerialize(data) {
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return data ? JSON.stringify(data).replace(/\//g, '\\/') : null;
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}
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export function renderGraphiQL(data: GraphiQLData): string {
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const endpointURL = data.endpointURL;
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const queryString = data.query;
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const variablesString =
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data.variables ? JSON.stringify(data.variables, null, 2) : null;
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const resultString = null;
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const operationName = data.operationName;
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const passHeader = data.passHeader ? data.passHeader : '';
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2016-06-14 17:31:36 -07:00
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/* eslint-disable max-len */
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return `
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2016-06-14 17:31:36 -07:00
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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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<style>
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html, body {
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height: 100%;
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margin: 0;
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overflow: hidden;
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width: 100%;
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}
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</style>
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<link href="//cdn.jsdelivr.net/graphiql/${GRAPHIQL_VERSION}/graphiql.css" rel="stylesheet" />
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<script src="//cdn.jsdelivr.net/fetch/0.9.0/fetch.min.js"></script>
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<script src="//cdn.jsdelivr.net/react/15.0.0/react.min.js"></script>
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<script src="//cdn.jsdelivr.net/react/15.0.0/react-dom.min.js"></script>
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<script src="//cdn.jsdelivr.net/graphiql/${GRAPHIQL_VERSION}/graphiql.min.js"></script>
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2017-02-28 20:05:45 +02:00
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<script src="//unpkg.com/subscriptions-transport-ws@0.5.3/browser/client.js"></script>
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</head>
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<body>
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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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2016-06-26 20:25:23 -04:00
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function locationQuery(params, location) {
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return (location ? location: '') + '?' + Object.keys(params).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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2017-02-28 20:05:45 +02:00
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var subscriptionsClient;
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var activeSubscriptionId = -1;
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function initSubscriptions() {
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var subscriptionsEndpoint = 'ws://' + window.location.hostname +
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(window.location.port ? ':' + window.location.port: '') + '/subscriptions';
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if (window.SubscriptionsTransportWs && window.SubscriptionsTransportWs.SubscriptionClient) {
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subscriptionsClient = new window.SubscriptionsTransportWs.SubscriptionClient(subscriptionsEndpoint, {
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reconnect: true
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});
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subscriptionsClient.onConnect(function() {
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console.log('Connected to GraphQL Subscriptions server...');
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});
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}
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}
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function graphQlSubscriptionFetcher(graphQLParams) {
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return {
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subscribe: function(observer) {
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observer.next('Your subscription data will apear here after server publication!');
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activeSubscriptionId = subscriptionsClient.subscribe({
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query: graphQLParams.query,
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variables: graphQLParams.variables
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}, function(error, result) {
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if (error) {
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observer.error(error);
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}
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else {
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observer.next(result);
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}
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});
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}
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}
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}
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2016-09-12 18:07:35 -04:00
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// We don't use safe-serialize for location, because it's not client input.
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2016-06-30 09:25:31 -07:00
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var fetchURL = locationQuery(otherParams, '${endpointURL}');
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2017-02-28 20:05:45 +02:00
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2016-06-14 17:31:36 -07:00
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// Defines a GraphQL fetcher using the fetch API.
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function graphQLFetcher(graphQLParams) {
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if (subscriptionsClient && activeSubscriptionId !== -1) {
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subscriptionsClient.unsubscribe(activeSubscriptionId);
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}
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if (subscriptionsClient && graphQLParams.query.startsWith('subscription')) {
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return graphQlSubscriptionFetcher(graphQLParams);
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}
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else {
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return fetch('/graphql', {
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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.text();
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}).then(function (responseBody) {
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try {
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return JSON.parse(responseBody);
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} catch (error) {
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return responseBody;
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}
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});
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}
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2016-06-14 17:31:36 -07:00
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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.body
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);
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2017-02-28 20:05:45 +02:00
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initSubscriptions();
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2016-06-14 17:31:36 -07:00
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</script>
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</body>
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</html>`;
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2016-06-15 20:35:48 -07:00
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}
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