74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package main
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import (
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"crypto/rand"
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"database/sql"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"net/http"
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"os"
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"time"
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_ "github.com/lib/pq"
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)
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func main() {
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db, err := sql.Open("postgres", os.Getenv("DATABASE_CONNECTION_STRING")+"?sslmode=disable")
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if err != nil {
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panic(err)
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}
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if err := db.Ping(); err != nil {
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panic(err)
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}
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_, err = db.Exec(`CREATE TABLE IF NOT EXISTS hits (
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id BIGSERIAL PRIMARY KEY,
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ts TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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path TEXT NOT NULL,
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payload TEXT NOT NULL
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)`)
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if err != nil {
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panic(err)
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}
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hostname, _ := os.Hostname()
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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fmt.Printf("%s %s %s %s\n", r.Method, r.URL.Path, r.RemoteAddr, r.UserAgent())
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buf := make([]byte, 128)
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rand.Read(buf)
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payload := hex.EncodeToString(buf)
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ts := time.Now()
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var id int64
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err := db.QueryRow(
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`INSERT INTO hits (ts, path, payload) VALUES ($1, $2, $3) RETURNING id`,
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ts, r.URL.Path, payload,
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).Scan(&id)
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if err != nil {
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fmt.Printf("error inserting: %s\n", err)
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusInternalServerError)
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json.NewEncoder(w).Encode(map[string]string{"error": err.Error()})
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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json.NewEncoder(w).Encode(map[string]any{
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"id": id,
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"ts": ts,
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"path": r.URL.Path,
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"payload": payload[:16],
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"hostname": hostname,
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})
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})
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fmt.Println("listening on :8080")
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if err := http.ListenAndServe(":8080", nil); err != nil {
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panic(err)
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}
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}
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