recipes2/internal/http-server/handlers/recipe/recipe.go

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2024-01-23 12:22:16 +02:00
package recipe
import (
"context"
"errors"
"log/slog"
"net/http"
"recipes/internal/domain/models"
resp "recipes/internal/lib/api/response"
"recipes/internal/lib/logger/sl"
"recipes/internal/storage"
"github.com/go-chi/chi/v5/middleware"
"github.com/go-chi/render"
"github.com/go-playground/validator/v10"
)
type Request struct {
RecipeId uint `json:"recipe_id" validate:"required"`
}
type Response struct {
resp.Response
Recipe models.Recipe `json:"recipe"`
}
type RecipeProvider interface {
GetRecipe(ctx context.Context, r_id uint) (models.Recipe, error)
}
func New(log *slog.Logger, recipeProvider RecipeProvider) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
const op = "http-server.handlers.recipe.New"
log = log.With(
slog.String("op", op),
slog.String("request_id", middleware.GetReqID(r.Context())),
)
var req Request
// decode request
err := render.DecodeJSON(r.Body, &req)
if err != nil {
log.Error("failed to decode request body", sl.Err(err))
render.JSON(w, r, resp.Error("failed to decode request"))
return
}
log.Debug("request body decoded", slog.Any("request", req))
// validate request
if err := validator.New().Struct(req); err != nil {
validateErr := err.(validator.ValidationErrors)
log.Error("invalid request", sl.Err(err))
render.JSON(w, r, resp.ValidationError(validateErr))
return
}
// get from storage
recipe, err := recipeProvider.GetRecipe(r.Context(), req.RecipeId)
if err != nil {
log.Error("failed to get recipe from storage", sl.Err(err))
if errors.Is(err, storage.ErrRecipeNotFound) {
render.JSON(w, r, resp.Error("recipe not found"))
return
}
render.JSON(w, r, resp.Error("failed to get recipe"))
return
}
// render response
var resp Response = Response{
Response: resp.OK(),
Recipe: recipe,
}
log.Debug("response", slog.Any("resp", resp))
render.JSON(w, r, resp)
}
}