get_chirp.go

package main

import (
	"database/sql"
	"errors"
	"net/http"
	"time"

	"github.com/google/uuid"
)

type chirpResponse struct {
	ID        uuid.UUID `json:"id"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
	Body      string    `json:"body"`
	UserID    uuid.UUID `json:"user_id"`
}

func (cfg *apiConfig) handlerGetChirp(w http.ResponseWriter, r *http.Request) {
	chirpID, err := uuid.Parse(r.PathValue("chirpID"))
	if err != nil {
		respondWithError(w, http.StatusBadRequest, "invalid chirp ID")
		return
	}

	chirp, err := cfg.db.GetChirp(r.Context(), chirpID)
	if errors.Is(err, sql.ErrNoRows) {
		respondWithError(w, http.StatusNotFound, "chirp not found")
		return
	}
	if err != nil {
		respondWithError(w, http.StatusInternalServerError, err.Error())
		return
	}

	respondWithJSON(w, http.StatusOK, chirpResponse(chirp))
}