// The MIT License (MIT)
//
// Copyright (c) 2016 Muhammed Thanish
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package graphql
import (
"bytes"
"fmt"
"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.
type GraphiQL struct{}
func respond(w http.ResponseWriter, body []byte, code int) {
w.Header().Set("Content-Type", "application/json; charset=utf-8")
w.Header().Set("X-Content-Type-Options", "nosniff")
w.WriteHeader(code)
_, _ = w.Write(body)
}
func errorJSON(msg string) []byte {
buf := bytes.Buffer{}
fmt.Fprintf(&buf, `{"error": "%s"}`, msg)
return buf.Bytes()
}
func (h GraphiQL) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
respond(w, errorJSON("only GET requests are supported"), http.StatusMethodNotAllowed)
return
}
w.Write(graphiql)
}
var graphiql = []byte(`
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.11.11/graphiql.css"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fetch/2.0.3/fetch.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.2.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.2.0/umd/react-dom.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.11.11/graphiql.min.js"></script>
</head>
<body style="width: 100%; height: 100%; margin: 0; overflow: hidden;">
<div id="graphiql" style="height: 100vh;">Loading...</div>
<script>
function fetchGQL(params) {
return fetch("/graphql", {
method: "post",
body: JSON.stringify(params),
credentials: "include",
}).then(function (resp) {
return resp.text();
}).then(function (body) {
try {
return JSON.parse(body);
} catch (error) {
return body;
}
});
}
ReactDOM.render(
React.createElement(GraphiQL, {fetcher: fetchGQL}),
document.getElementById("graphiql")
)
</script>
</body>
</html>
`)