doggo/cmd/api/api.go

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package main
import (
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"embed"
"io/fs"
"net/http"
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"time"
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"github.com/mr-karan/doggo/internal/hub"
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"github.com/mr-karan/doggo/pkg/utils"
"github.com/mr-karan/logf"
"github.com/go-chi/chi"
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"github.com/go-chi/chi/middleware"
"github.com/knadh/koanf"
)
var (
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// Version of the build. This is injected at build-time.
buildString = "unknown"
logger = utils.InitLogger()
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ko = koanf.New(".")
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//go:embed assets/*
assetsDir embed.FS
//go:embed index.html
html []byte
)
func main() {
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initConfig()
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// Initialize app.
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app := hub.New(logger, buildString)
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// Register router instance.
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r := chi.NewRouter()
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// Register middlewares
r.Use(middleware.RequestID)
r.Use(middleware.RealIP)
r.Use(middleware.Logger)
r.Use(middleware.Recoverer)
// Frontend Handlers.
assets, _ := fs.Sub(assetsDir, "assets")
r.Get("/assets/*", func(w http.ResponseWriter, r *http.Request) {
fs := http.StripPrefix("/assets/", http.FileServer(http.FS(assets)))
fs.ServeHTTP(w, r)
})
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Content-Type", "text/html")
w.Write(html)
})
// API Handlers.
r.Get("/api/", wrap(app, handleIndexAPI))
r.Get("/api/ping/", wrap(app, handleHealthCheck))
r.Post("/api/lookup/", wrap(app, handleLookup))
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// HTTP Server.
srv := &http.Server{
Addr: ko.String("server.address"),
Handler: r,
ReadTimeout: ko.Duration("server.read_timeout") * time.Millisecond,
WriteTimeout: ko.Duration("server.write_timeout") * time.Millisecond,
IdleTimeout: ko.Duration("server.keepalive_timeout") * time.Millisecond,
}
logger.WithFields(logf.Fields{
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"address": srv.Addr,
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"version": buildString,
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}).Info("starting server")
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if err := srv.ListenAndServe(); err != nil {
logger.WithError(err).Fatal("couldn't start server")
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}
}