feat: go-chi and first routes setup

api/article.go

@@ -3,12 +3,57 @@ package api
 import (
 	. "GohCMS2/domain/article"
 	. "GohCMS2/useCases"
+	"encoding/json"
+	"github.com/go-chi/chi/v5"
+	"net/http"
+	"strconv"
 )
 
-func GetArticle(id int) Article {
-	return container.GetArticleUseCase.GetArticle(id)
+func getArticle(w http.ResponseWriter, r *http.Request) {
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusNotFound)
+		return
+	}
+
+	article := container.GetArticleUseCase.GetArticle(id)
+	articleJson, err := json.Marshal(article)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusNotFound)
+		return
+	}
+
+	_, _ = w.Write(articleJson)
 }
 
-func CreateArticle(title string, body string) Article {
-	return container.CreateArticleUseCase.CreateAarticle(CreateArticleCommand{Title: title, Body: body})
+func postArticle(w http.ResponseWriter, r *http.Request) {
+	var article Article
+	err := json.NewDecoder(r.Body).Decode(&article)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	createdArticle := container.CreateArticleUseCase.CreateAarticle(CreateArticleCommand{
+		Title: article.Title,
+		Body:  article.Body,
+	})
+	articleJson, _ := json.Marshal(createdArticle)
+
+	_, _ = w.Write(articleJson)
+}
+
+func listArticles(w http.ResponseWriter, _ *http.Request) {
+	articles := container.ListArticlesUseCase.ListArticles()
+	articlesJson, _ := json.Marshal(articles)
+
+	_, _ = w.Write(articlesJson)
+}
+
+func NewArticleRouter() http.Handler {
+	r := chi.NewRouter()
+	r.Get("/{id}", getArticle)
+	r.Post("/", postArticle)
+	r.Get("/", listArticles)
+	return r
 }

api/dependecyInjection.go

@@ -2,40 +2,40 @@ package api
 
 import (
 	. "GohCMS2/useCases"
-	"errors"
 	"go.uber.org/dig"
 )
 
 type Container struct {
 	CreateArticleUseCase *CreateArticleUseCase
 	GetArticleUseCase    *GetArticleUseCase
+	ListArticlesUseCase  *ListArticlesUseCase
 }
 
 var container *Container
 
-func InitContainer() *Container {
+func createContainer(
+	createArticle *CreateArticleUseCase,
+	getArticle *GetArticleUseCase,
+	listArticle *ListArticlesUseCase,
+) *Container {
+	container = &Container{
+		CreateArticleUseCase: createArticle,
+		GetArticleUseCase:    getArticle,
+		ListArticlesUseCase:  listArticle,
+	}
+	return container
+}
+
+func InitContainer() {
 	if container != nil {
-		return container
+		return
 	}
 
 	digContainer := dig.New()
 
-	err1 := digContainer.Provide(NewCreateArticleUseCase)
-	err2 := digContainer.Provide(NewGetArticleUseCase)
+	_ = digContainer.Provide(NewCreateArticleUseCase)
+	_ = digContainer.Provide(NewGetArticleUseCase)
+	_ = digContainer.Provide(NewListArticlesUseCase)
 
-	if err := errors.Join(err1, err2); err != nil {
-		panic(err)
-	}
-
-	err := digContainer.Invoke(func(createArticle *CreateArticleUseCase, getArticle *GetArticleUseCase) {
-		container = &Container{
-			CreateArticleUseCase: createArticle,
-			GetArticleUseCase:    getArticle,
-		}
-	})
-	if err != nil {
-		panic(err)
-	}
-
-	return container
+	_ = digContainer.Invoke(createContainer)
 }