update: ingredients controller send an array of ingredient instead of pure json

API-Project/src/controllers/ingredients.controller.ts

@@ -1,24 +1,27 @@
 import { Request, Response, NextFunction } from "express";
 import { Router } from "express";
 import { Exceptions } from "../utils/exception";
-import { IIngredient } from "../types/ingredients";
+import { IIngredient, Ingredient } from "../types/ingredients";
 import { pool } from "../database/connection";
-import { QueryResult } from "pg";
+import { Query, QueryResult } from "pg";
 
 
 const IngredientsController = Router()
 
 /** To get all ingredients */
 IngredientsController.get('/', (req, res) => {
+    let ingredients:Ingredient[] = []
     pool.query({text:'SELECT * FROM Ingredients ORDER BY id'}, (error: Error, results: QueryResult) => {
         if (error) {
-            throw(error)
+            throw(error);
+        }
+        for (let key in results.rows) {
+            let ingredient:Ingredient = new Ingredient(Number(results.rows[key].id), results.rows[key].name);
+            ingredients.push(ingredient);
         }
-
         res.status(200);
-        res.json(results.rows);
+        res.json(ingredients);
     })
-
     return res;
 })
 
@@ -39,7 +42,7 @@ IngredientsController.get('/:id', (req, res) => {
         if (results.rowCount == 0) {
             throw new Exceptions.NotFoundException('no ingredient with this id');
         }
-        
+
         res.status(200)
         res.json(results.rows)
     })

API-Project/src/types/ingredients.ts

@@ -1,4 +1,14 @@
 export interface IIngredient {
     readonly id: number;
     readonly name: string;
+}
+
+export class Ingredient implements IIngredient {
+    id: number;
+    name: string;
+
+    constructor (id: number, name: string) {
+        this.id = id
+        this.name = name
+    }
 }