feat(server): main.go - listen on :8310, lib/pq open, ping db

main.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"database/sql"
+	"log"
+	"net/http"
+	"os"
+
+	_ "github.com/lib/pq"
+)
+
+func main() {
+	dsn := os.Getenv("POSTS_DSN")
+	if dsn == "" {
+		dsn = "postgres://posts:posts@127.0.0.1:5432/posts?sslmode=disable"
+	}
+	db, err := sql.Open("postgres", dsn)
+	if err != nil {
+		log.Fatalf("open db: %v", err)
+	}
+	defer db.Close()
+	if err := db.Ping(); err != nil {
+		log.Fatalf("ping db: %v", err)
+	}
+
+	srv := NewServer(db)
+	addr := os.Getenv("ADDR")
+	if addr == "" {
+		addr = ":8310" // see go-htmx-web-dev port list: 8310 is next free
+	}
+	log.Printf("posts listening on %s (dsn=%s)", addr, dsn)
+	if err := http.ListenAndServe(addr, srv.Routes()); err != nil {
+		log.Fatal(err)
+	}
+}