/
app.go
52 lines (45 loc) · 1.21 KB
/
app.go
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package main
import (
"fmt"
"github.com/JackC/pgx"
"net/http"
"os"
"log"
"encoding/json"
)
var pool *pgx.ConnectionPool
type Response map[string]interface{}
func (r Response) String() (string) {
b, err := json.Marshal(r)
if err != nil {
return ""
}
return string(b)
}
func main() {
var err error
connectionOptions := pgx.ConnectionParameters{
Host: "localhost",
User: "piotrek",
Password: "pass",
Database: "rowlf_development"}
poolOptions := pgx.ConnectionPoolOptions{MaxConnections: 10}
pool, err = pgx.NewConnectionPool(connectionOptions, poolOptions)
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to create connection pool: %v\n", err)
os.Exit(1)
}
http.HandleFunc("/", handler);
err = http.ListenAndServe("localhost:3000", nil)
if err != nil {
log.Fatal(err)
}
}
func handler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
if lodgings, err := pool.SelectRows("select name, external_id FROM lodgings_lodgings LIMIT 100"); err == nil {
fmt.Fprint(w, Response{"lodgings": lodgings})
} else {
http.Error(w, fmt.Sprintf("Internal server error: %s", err), http.StatusInternalServerError)
}
}