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handle.go
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handle.go
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package ginplus
import (
"embed"
"fmt"
"net/http"
"github.com/graph-gophers/graphql-go"
"github.com/graph-gophers/graphql-go/relay"
)
const (
DefaultHandlePath = "/graphql"
DefaultViewPath = "/view"
)
func View(handlePath string) http.HandlerFunc {
var page = []byte(`
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.10.2/graphiql.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/fetch/1.1.0/fetch.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.5.4/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.5.4/react-dom.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.10.2/graphiql.js"></script>
</head>
<body style="width: 100%; height: 100%; margin: 0; overflow: hidden;">
<div id="graphiql" style="height: 100vh;">Loading...</div>
<script>
function graphQLFetcher(graphQLParams) {
return fetch("` + handlePath + `", {
method: "` + "POST" + `",
body: JSON.stringify(graphQLParams),
credentials: "include",
}).then(function (response) {
return response.text();
}).then(function (responseBody) {
try {
return JSON.parse(responseBody);
} catch (error) {
return responseBody;
}
});
}
ReactDOM.render(
React.createElement(GraphiQL, {fetcher: graphQLFetcher}),
document.getElementById("graphiql")
);
</script>
</body>
</html>
`)
return func(w http.ResponseWriter, r *http.Request) {
_, err := w.Write(page)
if err != nil {
panic(fmt.Sprintf("write page error: %s\n", err))
}
}
}
func Handler(root any, content embed.FS) *relay.Handler {
s, err := String(content)
if err != nil {
panic(fmt.Sprintf("reading embedded schema contents: %v", err))
}
return &relay.Handler{Schema: graphql.MustParseSchema(s, root, graphql.UseFieldResolvers())}
}