forked from cerc-io/laconicd
166 lines
4.9 KiB
Go
166 lines
4.9 KiB
Go
|
package gql
|
||
|
|
||
|
import (
|
||
|
"html/template"
|
||
|
"net/http"
|
||
|
)
|
||
|
|
||
|
// GraphiQL is an in-browser IDE for exploring GraphiQL APIs.
|
||
|
// This handler returns GraphiQL when requested.
|
||
|
//
|
||
|
// For more information, see https://github.com/graphql/graphiql.
|
||
|
|
||
|
func PlaygroundHandler(apiURL string) http.HandlerFunc {
|
||
|
return func(w http.ResponseWriter, r *http.Request) {
|
||
|
if r.Method != "GET" {
|
||
|
http.Error(w, "only GET requests are supported", http.StatusMethodNotAllowed)
|
||
|
return
|
||
|
}
|
||
|
w.Header().Set("Content-Type", "text/html")
|
||
|
err := page.Execute(w, map[string]interface{}{
|
||
|
"apiURL": apiURL,
|
||
|
})
|
||
|
if err != nil {
|
||
|
panic(err)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// https://github.com/graphql/graphiql/blob/main/examples/graphiql-cdn/index.html
|
||
|
var page = template.Must(template.New("graphiql").Parse(`
|
||
|
<!DOCTYPE html>
|
||
|
<html lang="en">
|
||
|
<head>
|
||
|
<title>GraphiQL</title>
|
||
|
<style>
|
||
|
body {
|
||
|
height: 100%;
|
||
|
margin: 0;
|
||
|
width: 100%;
|
||
|
overflow: hidden;
|
||
|
}
|
||
|
|
||
|
#graphiql {
|
||
|
height: 100vh;
|
||
|
}
|
||
|
</style>
|
||
|
|
||
|
<!--
|
||
|
This GraphiQL example depends on Promise and fetch, which are available in
|
||
|
modern browsers, but can be "polyfilled" for older browsers.
|
||
|
GraphiQL itself depends on React DOM.
|
||
|
If you do not want to rely on a CDN, you can host these files locally or
|
||
|
include them directly in your favored resource bundler.
|
||
|
-->
|
||
|
<script
|
||
|
src="https://unpkg.com/react@17/umd/react.development.js"
|
||
|
integrity="sha512-Vf2xGDzpqUOEIKO+X2rgTLWPY+65++WPwCHkX2nFMu9IcstumPsf/uKKRd5prX3wOu8Q0GBylRpsDB26R6ExOg=="
|
||
|
crossorigin="anonymous"
|
||
|
></script>
|
||
|
<script
|
||
|
src="https://unpkg.com/react-dom@17/umd/react-dom.development.js"
|
||
|
integrity="sha512-Wr9OKCTtq1anK0hq5bY3X/AvDI5EflDSAh0mE9gma+4hl+kXdTJPKZ3TwLMBcrgUeoY0s3dq9JjhCQc7vddtFg=="
|
||
|
crossorigin="anonymous"
|
||
|
></script>
|
||
|
|
||
|
<!--
|
||
|
These two files can be found in the npm module, however you may wish to
|
||
|
copy them directly into your environment, or perhaps include them in your
|
||
|
favored resource bundler.
|
||
|
-->
|
||
|
<link rel="stylesheet" href="https://unpkg.com/graphiql/graphiql.min.css" />
|
||
|
</head>
|
||
|
|
||
|
<body>
|
||
|
<div id="graphiql">Loading...</div>
|
||
|
<script
|
||
|
src="https://unpkg.com/graphiql/graphiql.min.js"
|
||
|
type="application/javascript"
|
||
|
></script>
|
||
|
<script>
|
||
|
// https://github.com/graphql/graphiql/blob/main/packages/graphiql/resources/renderExample.js
|
||
|
|
||
|
// Parse the search string to get url parameters.
|
||
|
var search = window.location.search;
|
||
|
var parameters = {};
|
||
|
search
|
||
|
.substr(1)
|
||
|
.split('&')
|
||
|
.forEach(function (entry) {
|
||
|
var eq = entry.indexOf('=');
|
||
|
if (eq >= 0) {
|
||
|
parameters[decodeURIComponent(entry.slice(0, eq))] = decodeURIComponent(
|
||
|
entry.slice(eq + 1),
|
||
|
);
|
||
|
}
|
||
|
});
|
||
|
|
||
|
// When the query and variables string is edited, update the URL bar so
|
||
|
// that it can be easily shared.
|
||
|
function onEditQuery(newQuery) {
|
||
|
parameters.query = newQuery;
|
||
|
updateURL();
|
||
|
}
|
||
|
|
||
|
function onEditVariables(newVariables) {
|
||
|
parameters.variables = newVariables;
|
||
|
updateURL();
|
||
|
}
|
||
|
|
||
|
function onEditHeaders(newHeaders) {
|
||
|
parameters.headers = newHeaders;
|
||
|
updateURL();
|
||
|
}
|
||
|
|
||
|
function onTabChange(tabsState) {
|
||
|
const activeTab = tabsState.tabs[tabsState.activeTabIndex];
|
||
|
parameters.query = activeTab.query;
|
||
|
parameters.variables = activeTab.variables;
|
||
|
parameters.headers = activeTab.headers;
|
||
|
updateURL();
|
||
|
}
|
||
|
|
||
|
function updateURL() {
|
||
|
var newSearch =
|
||
|
'?' +
|
||
|
Object.keys(parameters)
|
||
|
.filter(function (key) {
|
||
|
return Boolean(parameters[key]);
|
||
|
})
|
||
|
.map(function (key) {
|
||
|
return (
|
||
|
encodeURIComponent(key) + '=' + encodeURIComponent(parameters[key])
|
||
|
);
|
||
|
})
|
||
|
.join('&');
|
||
|
history.replaceState(null, null, newSearch);
|
||
|
}
|
||
|
|
||
|
// Render <GraphiQL /> into the body.
|
||
|
// See the README in the top level of this module to learn more about
|
||
|
// how you can customize GraphiQL by providing different values or
|
||
|
// additional child elements.
|
||
|
ReactDOM.render(
|
||
|
React.createElement(GraphiQL, {
|
||
|
fetcher: GraphiQL.createFetcher({
|
||
|
url: {{.apiURL}}
|
||
|
}),
|
||
|
query: parameters.query,
|
||
|
variables: parameters.variables,
|
||
|
headers: parameters.headers,
|
||
|
defaultHeaders: parameters.defaultHeaders,
|
||
|
onEditQuery: onEditQuery,
|
||
|
onEditVariables: onEditVariables,
|
||
|
onEditHeaders: onEditHeaders,
|
||
|
defaultEditorToolsVisibility: true,
|
||
|
isHeadersEditorEnabled: true,
|
||
|
shouldPersistHeaders: true,
|
||
|
onTabChange,
|
||
|
}),
|
||
|
document.getElementById('graphiql'),
|
||
|
);
|
||
|
</script>
|
||
|
</body>
|
||
|
</html>
|
||
|
`))
|