add dummy routes and handlers and update makefile

Makefile

@@ -19,7 +19,17 @@ migrateup:
 .PHONY: run
 # Run all services
 run:
-	go run ./service_a/server/main.go & go run ./service_b/server/main.go
+	cd $(SERVICE_A) && go run ./server/main.go & cd $(SERVICE_B) && go run ./server/main.go
+
+.PHONY: run-a
+# Run service_a only
+run-a:
+	cd $(SERVICE_A) && go run ./server/main.go
+
+.PHONY: run-b
+# Run service_b only
+run-b:
+	cd $(SERVICE_B) && go run ./server/main.go
 
 .PHONY: test
 # Run all tests with coverage

service_a/internal/domains/meteo/handlers.go

@@ -0,0 +1,20 @@
+package meteo
+
+import (
+	"fmt"
+	"net/http"
+)
+
+type Handler struct{}
+
+func NewHandler() *Handler {
+	return &Handler{}
+}
+
+func (h *Handler) IngestCSV(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "hello from csv")
+}
+
+func (h *Handler) IngestExcel(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "hello from excel")
+}

service_a/internal/domains/meteo/router.go

@@ -0,0 +1,8 @@
+package meteo
+
+import "net/http"
+
+func RegisterRoutes(mux *http.ServeMux, handler *Handler) {
+	mux.HandleFunc("POST /ingest/csv", handler.IngestCSV)
+	mux.HandleFunc("POST /ingest/excel", handler.IngestExcel)
+}

service_a/internal/router/router.go

@@ -0,0 +1,16 @@
+package router
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func SetupRoutes() *http.ServeMux {
+	mux := http.NewServeMux()
+
+	mux.HandleFunc("GET /", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "hello world")
+	})
+
+	return mux
+}

service_a/server/main.go

@@ -1,18 +1,18 @@
 package main
 
 import (
-	"fmt"
+	"log/slog"
-	"log"
 	"net/http"
+	"servicea/internal/domains/meteo"
+	"servicea/internal/router"
 )
 
 func main() {
-	mux := http.NewServeMux()
+	mux := router.SetupRoutes()
 
-	mux.HandleFunc("GET /hello", func(w http.ResponseWriter, r *http.Request) {
+	meteoHandler := meteo.NewHandler()
-		log.Println("Received request on /hello endpoint")
+	meteo.RegisterRoutes(mux, meteoHandler)
-		fmt.Fprintf(w, "Hello world from service A")
-	})
 
+	slog.Info("server starting on :8080")
 	http.ListenAndServe(":8080", mux)
 }