HELP: we aresuffering with handleTransaction base64 return

.env

@@ -21,7 +21,7 @@ function transact {
 	echo $tipo
 	echo $url
 
-	curl -s -X POST -H 'content-type: application/json' -d $body $url | jq
+	curl -X POST -H 'content-type: application/json' -d $body $url | jq
 }
 
 function statement {

flake.nix

@@ -17,7 +17,7 @@
           mkShell {
             name = "rinha-go";
             packages = with pkgs;
-              [go_1_22 nginx postgresql k6]
+              [go_1_22 nginx postgresql k6 jq]
               ++ lib.optional stdenv.isLinux [inotify-tools]
               ++ lib.optional stdenv.isDarwin [
                 darwin.apple_sdk.frameworks.CoreServices

internal/transaction.go

@@ -62,6 +62,6 @@ func processTransaction(client *Client, trx Transaction) error {
 	return nil
 }
 
-func validTransaction(cilent Client, value int) bool {
-	return true
+func validTransaction(client Client, value int) bool {
+	return client.Balance-value < -client.MaxLimit
 }

main.go

@@ -1,7 +1,9 @@
 package main
 
 import (
+	"encoding/json"
 	"flag"
+	"fmt"
 	"net/http"
 	"strconv"
 
@@ -17,30 +19,49 @@ func main() {
 	e := echo.New()
 
 	// middlewares
-	e.Use(middleware.RequestID())
+	// e.Use(middleware.RequestID())
 	e.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
 		Format: "method=${method}, uri=${uri}, status=${status}\n",
 	}))
 
-	e.GET("/clientes/:id/transacoes", handleTransaction)
+	e.POST("/clientes/:id/transacoes", handleTransaction)
 	e.Logger.Fatal(e.Start(*port))
 }
 
+type TransactionResponse struct {
+	Saldo int `json:"saldo"`
+	Limite int `json:"limite"`
+}
+
 func handleTransaction(c echo.Context) error {
+	fmt.Println("Ola")
 	param := c.Param("id")
 
 	var attrs map[string]interface{}
 	err := (&echo.DefaultBinder{}).BindBody(c, &attrs)
+	fmt.Println("Ola2")
 	if err != nil {
 		return c.JSON(http.StatusInternalServerError, nil)
 	}
 
 	customerID, err := strconv.Atoi(param)
+	fmt.Println("Ola3")
 	if err != nil {
 		return c.JSON(http.StatusUnprocessableEntity, nil)
 	}
 
-	t, err := MakeTransaction(customerID, attrs)
+	var response TransactionResponse
+	cc, err := MakeTransaction(customerID, attrs)
+	response.Saldo = cc.Balance
+	response.Limite = cc.MaxLimit
+
+	body, err := json.Marshal(response)
+	fmt.Println("Ola4")
+	if err != nil {
+		return c.JSON(http.StatusUnprocessableEntity, nil)
+	}
 
-	return nil
+	fmt.Println("Ola5")
+	fmt.Println(string(body))
+	return c.JSON(http.StatusOK, string(body))
 }