/
input.go
76 lines (67 loc) · 1.43 KB
/
input.go
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package main
import (
"database/sql"
"encoding/json"
"fmt"
"github.com/bmizerany/pq"
"io/ioutil"
"net/http"
"os"
//"time"
)
type Metric struct {
Time string
Key string
Value float32
}
func dbConnect() (db *sql.DB, err error) {
dbUrl := os.Getenv("DATABASE_URL")
source, err := pq.ParseURL(dbUrl)
if err != nil {
db, err = sql.Open("postgres", source)
}
return
}
func dbInsert(db *sql.DB, query string, args ...interface{}) (err error) {
tx, err := db.Begin()
if err != nil {
return
}
_, err = tx.Exec(query, args)
if err != nil {
return
}
err = tx.Commit()
return
}
func InputHandler(res http.ResponseWriter, req *http.Request) {
body, err := ioutil.ReadAll(req.Body)
if err != nil {
http.Error(res, err.Error(), 400)
return
}
var metrics []Metric
err = json.Unmarshal(body, &metrics)
if err != nil {
http.Error(res, err.Error(), 400)
return
}
db, err := dbConnect()
if err != nil {
http.Error(res, err.Error(), 400)
return
}
for _, m := range metrics {
//t, err := time.Parse(time.RFC3339, m.Time)
//if err != nil {
// http.Error(res, err.Error(), 400)
// return
//}
// err = dbInsert(db, "INSERT INTO metrics (time, key, value) VALUES (t.Format(time.RFC3339), m.Key, m.Value)")
err = dbInsert(db, "INSERT INTO metrics (key, value) VALUES (?, ?)", m.Key, m.Value)
if err != nil {
http.Error(res, err.Error(), 500)
}
fmt.Fprintf(res, "Inserted", len(metrics), "records")
}
}