86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
// This template contains a simple
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// app with OTEL bootstrap that will create an
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// HTTP server configured by environment that exports
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// spans and metrics to an OTEL collector if configured
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// to do so. Will also stand up a prometheus metrics
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// endpoint.
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//
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// Configuration and logger stored in context
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// Reference implementation of the provided packages
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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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"net/http"
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"os"
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"os/signal"
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"golang.org/x/sys/unix"
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"gitea.libretechconsulting.com/rmcguire/go-app/pkg/app"
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optshttp "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http/opts"
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"gitea.libretechconsulting.com/rmcguire/go-http-server-with-otel/pkg/config"
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)
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var flagSchema bool
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func main() {
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ctx, cncl := signal.NotifyContext(context.Background(), os.Interrupt, unix.SIGTERM)
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defer cncl()
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// This will be loaded by go-app courtesy of MustLoadConfigInto, which will
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// combine our sample configuration along with the embedded go-app AppConfig
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demoAppConfig := &config.DemoConfig{}
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// Load configuration and setup logging
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ctx, demoApp := app.MustLoadConfigInto(ctx, demoAppConfig)
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fmt.Printf("Demo App Config:\n\n%+v\n", *demoApp)
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// Print schema if that's all we have to do
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if flagSchema {
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printSchema()
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os.Exit(1)
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}
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// Prepare app
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app := &app.App{
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AppContext: ctx,
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HTTP: &optshttp.AppHTTP{
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Funcs: []optshttp.HTTPFunc{
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{
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Path: "/test",
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HandlerFunc: func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusNotImplemented)
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w.Write([]byte("http test route"))
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},
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},
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},
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},
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}
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// Launch app
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app.MustRun()
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// Wait for app to complete
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// Perform any extra shutdown here
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<-app.Done()
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}
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// flag.Parse will be called by go-app
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func init() {
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flag.BoolVar(&flagSchema, "schema", false, "generate json schema and exit")
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}
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func printSchema() {
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bytes, err := app.CustomSchema(&config.DemoConfig{})
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if err != nil {
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panic(err)
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}
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fmt.Println(string(bytes))
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os.Exit(0)
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}
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