initial commit

backend/src/mock_data/recipes.ts

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+import { Recipe } from "../types/recipe"
+
+/**
+ * Mock data set with some sample recipes.
+ * In a real application, this would be fetched from a backend.
+ */
+export const recipes: Recipe[] = [
+  {
+  id: "1",
+  title: "Spaghetti Bolognese",
+  ingredients: [
+    { name: "Spaghetti", amount: 200, unit: "g" },
+    { name: "Ground Beef", amount: 300, unit: "g" },
+    { name: "Tomato Sauce", amount: 400, unit: "ml" }
+  ],
+  instructions: "Cook pasta. Prepare sauce. Mix together. Serve hot.",
+  photoUrl: "https://source.unsplash.com/400x300/?spaghetti"
+}
+]

backend/src/server.ts

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+import express from "express";
+import cors from "cors";
+import { v4 as uuidv4 } from "uuid";
+
+import { recipes } from "../mock_data/recipes"
+import { Recipe } from "../types/recipe"
+
+
+const app = express();
+app.use(cors());
+app.use(express.json());
+
+// Routes
+app.get("/recipes", (req, res) => res.json(recipes));
+
+app.get("/recipes/:id", (req, res) => {
+  const recipe = recipes.find(r => r.id === req.params.id);
+  recipe ? res.json(recipe) : res.status(404).send("Recipe not found");
+});
+
+app.post("/recipes", (req, res) => {
+  const newRecipe: Recipe = { id: uuidv4(), ...req.body };
+  recipes.push(newRecipe);
+  res.status(201).json(newRecipe);
+});
+
+app.put("/recipes/:id", (req, res) => {
+  const index = recipes.findIndex(r => r.id === req.params.id);
+  if (index === -1) return res.status(404).send("Recipe not found");
+  recipes[index] = { ...recipes[index], ...req.body };
+  res.json(recipes[index]);
+});
+
+app.delete("/recipes/:id", (req, res) => {
+  recipes = recipes.filter(r => r.id !== req.params.id);
+  res.status(204).send();
+});
+
+app.listen(4000, () => console.log("Server running on http://localhost:4000"));
+

backend/src/types/ingredient.ts

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+/**
+ * Represents a single ingredient in a recipe.
+ */
+export interface Ingredient {
+  /** Name of the ingredient (e.g. "Spaghetti") */
+  name: string
+
+  /** Quantity required (e.g. 200, 1.5) */
+  amount: number
+
+  /** Unit of measurement (e.g. "g", "tbsp", "cups").
+   *  Optional for cases like "1 egg".
+   */
+  unit?: string
+}

backend/src/types/recipe.ts

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+import { Ingredient } from "./ingredient"
+
+/**
+ * Represents a recipe object in the application.
+ */
+export interface Recipe {
+  /** Unique identifier for the recipe */
+  id: string
+
+  /** Title of the recipe */
+  title: string
+
+  /** List of ingredients with amount + unit */
+  ingredients: Ingredient[]
+
+  /** Preparation instructions */
+  instructions: string
+
+  /** Optional image URL for the recipe */
+  imageUrl?: string
+}
+