cc-backend/server.go

package main

import (
	"log"
	"net/http"
	"os"

	"github.com/99designs/gqlgen/graphql/handler"
	"github.com/99designs/gqlgen/graphql/playground"
	"github.com/ClusterCockpit/cc-jobarchive/graph"
	"github.com/ClusterCockpit/cc-jobarchive/graph/generated"
	"github.com/gorilla/handlers"
	"github.com/gorilla/mux"
	"github.com/jmoiron/sqlx"
	_ "github.com/mattn/go-sqlite3"
)

const defaultPort = "8080"

func main() {
	port := os.Getenv("PORT")
	if port == "" {
		port = defaultPort
	}

	db, err := sqlx.Open("sqlite3", "./job.db")
	if err != nil {
		log.Fatal(err)
	}
	defer db.Close()

	r := mux.NewRouter()
	loggedRouter := handlers.LoggingHandler(os.Stdout, r)
	srv := handler.NewDefaultServer(generated.NewExecutableSchema(generated.Config{Resolvers: &graph.Resolver{DB: db}}))
	r.HandleFunc("/", playground.Handler("GraphQL playground", "/query"))
	r.Handle("/query", srv)

	log.Printf("connect to http://localhost:%s/ for GraphQL playground", port)
	log.Fatal(http.ListenAndServe("127.0.0.1:" + port,
		handlers.CORS(handlers.AllowedHeaders([]string{"X-Requested-With", "Content-Type", "Authorization"}),
			handlers.AllowedMethods([]string{"GET", "POST", "HEAD", "OPTIONS"}),
			handlers.AllowedOrigins([]string{"*"}))(loggedRouter)))
}