github.com/aigarnetwork/aigar@v0.0.0-20191115204914-d59a6eb70f8e/graphql/graphiql.go (about)

     1  //  Copyright 2018 The go-ethereum Authors
     2  //  Copyright 2019 The go-aigar Authors
     3  //  This file is part of the go-aigar library.
     4  //
     5  //  The go-aigar library is free software: you can redistribute it and/or modify
     6  //  it under the terms of the GNU Lesser General Public License as published by
     7  //  the Free Software Foundation, either version 3 of the License, or
     8  //  (at your option) any later version.
     9  //
    10  //  The go-aigar library is distributed in the hope that it will be useful,
    11  //  but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  //  GNU Lesser General Public License for more details.
    14  //
    15  //  You should have received a copy of the GNU Lesser General Public License
    16  //  along with the go-aigar library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package graphql
    19  
    20  import (
    21  	"bytes"
    22  	"fmt"
    23  	"net/http"
    24  )
    25  
    26  // GraphiQL is an in-browser IDE for exploring GraphiQL APIs.
    27  // This handler returns GraphiQL when requested.
    28  //
    29  // For more information, see https://github.com/graphql/graphiql.
    30  type GraphiQL struct{}
    31  
    32  func respond(w http.ResponseWriter, body []byte, code int) {
    33  	w.Header().Set("Content-Type", "application/json; charset=utf-8")
    34  	w.Header().Set("X-Content-Type-Options", "nosniff")
    35  	w.WriteHeader(code)
    36  	_, _ = w.Write(body)
    37  }
    38  
    39  func errorJSON(msg string) []byte {
    40  	buf := bytes.Buffer{}
    41  	fmt.Fprintf(&buf, `{"error": "%s"}`, msg)
    42  	return buf.Bytes()
    43  }
    44  
    45  func (h GraphiQL) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    46  	if r.Method != "GET" {
    47  		respond(w, errorJSON("only GET requests are supported"), http.StatusMethodNotAllowed)
    48  		return
    49  	}
    50  	w.Header().Set("Content-Type", "text/html")
    51  	w.Write(graphiql)
    52  }
    53  
    54  var graphiql = []byte(`
    55  <!DOCTYPE html>
    56  <html>
    57  	<head>
    58  		<link
    59                  rel="icon"
    60                  type="image/png"
    61                  href="data:image/png;base64,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"
    62          />
    63          <link
    64                  rel="stylesheet"
    65                  href="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.13.0/graphiql.css"
    66                  integrity="sha384-Qua2xoKBxcHOg1ivsKWo98zSI5KD/UuBpzMIg8coBd4/jGYoxeozCYFI9fesatT0"
    67                  crossorigin="anonymous"
    68          />
    69          <script
    70                  src="https://cdnjs.cloudflare.com/ajax/libs/fetch/3.0.0/fetch.min.js"
    71                  integrity="sha384-5B8/4F9AQqp/HCHReGLSOWbyAOwnJsPrvx6C0+VPUr44Olzi99zYT1xbVh+ZanQJ"
    72                  crossorigin="anonymous"
    73          ></script>
    74          <script
    75                  src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.5/umd/react.production.min.js"
    76                  integrity="sha384-dOCiLz3nZfHiJj//EWxjwSKSC6Z1IJtyIEK/b/xlHVNdVLXDYSesoxiZb94bbuGE"
    77                  crossorigin="anonymous"
    78          ></script>
    79          <script
    80                  src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.5/umd/react-dom.production.min.js"
    81                  integrity="sha384-QI+ql5f+khgo3mMdCktQ3E7wUKbIpuQo8S5rA/3i1jg2rMsloCNyiZclI7sFQUGN"
    82                  crossorigin="anonymous"
    83          ></script>
    84          <script
    85                  src="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.13.0/graphiql.min.js"
    86                  integrity="sha384-roSmzNmO4zJK9X4lwggDi4/oVy+9V4nlS1+MN8Taj7tftJy1GvMWyAhTNXdC/fFR"
    87                  crossorigin="anonymous"
    88          ></script>
    89  	</head>
    90  	<body style="width: 100%; height: 100%; margin: 0; overflow: hidden;">
    91  		<div id="graphiql" style="height: 100vh;">Loading...</div>
    92  		<script>
    93  			function fetchGQL(params) {
    94  				return fetch("/graphql", {
    95  					method: "post",
    96  					body: JSON.stringify(params),
    97  					credentials: "include",
    98  				}).then(function (resp) {
    99  					return resp.text();
   100  				}).then(function (body) {
   101  					try {
   102  						return JSON.parse(body);
   103  					} catch (error) {
   104  						return body;
   105  					}
   106  				});
   107  			}
   108  			ReactDOM.render(
   109  				React.createElement(GraphiQL, {fetcher: fetchGQL}),
   110  				document.getElementById("graphiql")
   111  			)
   112  		</script>
   113  	</body>
   114  </html>
   115  `)