50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
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// Program http demonstrates how to set up a JSON-RPC 2.0 server using the
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// github.com/creachadair/jrpc2 package with an HTTP transport.
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//
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// Usage (see also the client example):
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//
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// go build github.com/creachadair/jrpc2/cmd/examples/http
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// ./http -port 8080
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//
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// The server accepts RPCs on http://localhost:<port>/rpc.
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package main
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import (
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"context"
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"flag"
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"fmt"
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"log"
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"net/http"
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"os"
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"strings"
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"github.com/creachadair/jrpc2"
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"github.com/creachadair/jrpc2/handler"
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"github.com/creachadair/jrpc2/jhttp"
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"github.com/creachadair/jrpc2/metrics"
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"github.com/creachadair/jrpc2/server"
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)
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var port = flag.Int("port", 0, "Service port")
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func main() {
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flag.Parse()
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if *port <= 0 {
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log.Fatal("You must provide a positive -port to listen on")
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}
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// Start a local server with a single trivial method and bridge it to HTTP.
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local := server.NewLocal(handler.Map{
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"Ping": handler.New(func(ctx context.Context, msg ...string) string {
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return "OK: " + strings.Join(msg, ", ")
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}),
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}, &server.LocalOptions{
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Server: &jrpc2.ServerOptions{
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Logger: log.New(os.Stderr, "[jhttp.Bridge] ", log.LstdFlags|log.Lshortfile),
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Metrics: metrics.New(),
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},
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})
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http.Handle("/rpc", jhttp.NewBridge(local.Client))
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log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", *port), nil))
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}
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