Merge pull request 'Implemented the GET /images endpoint with corresponding params' (#20) from get-images into develop

Reviewed-on: #20

src/controllers/ImageController.ts

@@ -49,14 +49,24 @@ class ImageController {
     }
   }
 
-  async getAllImages(_: Request, res: Response): Promise<void> {
+  async getAllImages(req: Request, res: Response): Promise<void> {
     try {
-      const images = await imageService.findAll();
+      if (req.query.status !== undefined && !["consumed", "unavailable", "available"].includes(req.query.status as string)) {
+        throw TypeError("if present, `status` should have the values `consumed`, `unavailable`, or `available`")
+      }
+      const limit = req.query.limit ? Number(req.query.limit) : undefined;
+      const status = req.query.status ? req.query.status as Image["status"] : undefined;
+
+      const images = await imageService.findAll(limit, status);
       res.json({ images });
     } catch (error) {
+      if (error instanceof TypeError) {
+        res.status(400).json({ error });
+      } else {
         res.status(500).json({ error: "Internal Server Error" });
       }
     }
+  }
 
   async addImage(req: Request, res: Response): Promise<void> {
     try {
@@ -76,7 +86,7 @@ class ImageController {
         res.status(400).json({ error: error.message });
       } else {
         // Return 500 in other case
-        res.status(500).json({ error: error });
+        res.status(500).json({ error });
       }
     }
   }

src/models/ImageModel.ts

@@ -1,9 +1,9 @@
 import mongoose, { Document } from "mongoose";
 
 export interface Image extends Document {
-  url: String;
-  enum: "consumed" | "unavailable" | "available";
-  tags?: String[];
+  url: string;
+  status: "consumed" | "unavailable" | "available";
+  tags?: string[];
 }
 
 const ImageSchema = new mongoose.Schema(

src/services/ImageService.ts

@@ -9,10 +9,23 @@ class ImageService {
     const image = await imageModel.findOne({ _id: id });
     return image;
   }
-  async findAll(): Promise<Image[]> {
-    const allImages = await imageModel.find();
+
+  async findAll(limit?: number, status?: Image["status"]): Promise<Image[]> {
+    const typeError = TypeError("if present, `limit` must be a non-negative integer");
+    const filter = status !== undefined ? { status } : {};
+    let query = imageModel.find(filter);
+    if (limit !== undefined) {
+      if (Number.isInteger(limit)) {
+        if (limit > 0) query = query.limit(limit);
+        else if (limit < 0) throw typeError;
+      } else {
+        throw typeError;
+      }
+    }
+    const allImages = await query;
     return allImages;
   }
+
   async add(image: Image): Promise<Image> {
     const newImage = await imageModel.create(image);
     return newImage;

tests/app.test.ts

@@ -4,6 +4,7 @@ import app, { startApp } from "../src/app";
 import imageService from "../src/services/ImageService";
 import populateDatabase from "./populateDatabase";
 import { Image } from "../src/models/ImageModel";
+import { faker } from "@faker-js/faker";
 
 const imageServiceOriginal = imageService;
 
@@ -74,7 +75,7 @@ describe("GET /images works properly", async () => {
   it("should return 500 for an error on the service", async () => {
     mock.module("../src/services/ImageService", () => ({
       default: {
-        add: () => {
+        findAll: () => {
           throw new Error("This is an expected testing error");
         },
       },
@@ -84,6 +85,68 @@ describe("GET /images works properly", async () => {
 
     expect(res.status).toBe(500);
   });
+
+  it("should return 400 for an invalid status param value", async () => {
+    const res = await request(app).get("/images?status=foo");
+    expect(res.statusCode).toBe(400);
+  });
+
+  it("should return 200 for a request with valid status param", async () => {
+    const status = faker.helpers.arrayElement(["consumed", "available", "unavailable"])
+    const res = await request(app).get(`/images?status=${status}`);
+    expect(res.statusCode).toBe(200);
+  });
+
+  it("should only have the requested status in the images", async () => {
+    const status = faker.helpers.arrayElement(["consumed", "available", "unavailable"])
+    const res = await request(app).get(`/images?status=${status}`);
+    expect(res.body.images
+      .map((image: Image) => image.status)
+      .every((imageStatus: string) => imageStatus === status)).toBeTrue();
+  });
+
+  it("should return 400 for a floating point value in limit value", async () => {
+    const res = await request(app).get("/images?limit=2.4");
+    expect(res.statusCode).toBe(400);
+  });
+
+  it("should return 400 for a negative value in limit value", async () => {
+    const res = await request(app).get("/images?limit=-1");
+    expect(res.statusCode).toBe(400);
+  });
+
+  it("should return 400 for a NaN limit value", async () => {
+    const res = await request(app).get("/images?limit=foo");
+    expect(res.statusCode).toBe(400);
+  });
+
+  it("should return 200 for a request with valid limit param", async () => {
+    const limit = faker.number.int({ min: 5, max: 50 });
+    const res = await request(app).get(`/images?limit=${limit}`);
+    expect(res.statusCode).toBe(200);
+  });
+
+  it("should return 200 for a request with valid limit param", async () => {
+    const limit = faker.number.int({ min: 5, max: 50 });
+    const res = await request(app).get(`/images?limit=${limit}`);
+    expect(res.body.images.length).toBeLessThanOrEqual(limit);
+  });
+
+  it("should return 200 for a request with both valid params", async () => {
+    const res = await request(app).get("/images?limit=3&status=available");
+    expect(res.statusCode).toBe(200);
+  });
+
+  it("should return the same ids using limit=0 and using no limit parameter", async () => {
+    const resLimit0 = await request(app).get("/images?limit=0");
+    const resNoLimit = await request(app).get("/images");
+
+    const ids1 = resNoLimit.body.images.map((image: Image) => image._id);
+    const ids2 = resLimit0.body.images.map((image: Image) => image._id);
+
+    expect(ids1.length).toBe(ids2.length);
+    ids1.forEach((id: string) => expect(ids2).toContain(id));
+  })
 });
 
 describe("POST /images works properly", () => {

yarn.lock

@@ -1,6 +1,6 @@
 # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
 # yarn lockfile v1
-# bun ./bun.lockb --hash: 738A3B3B61512E75-26d27a9609e246ac-33059F282FFA6348-27fd5707ca8843fa
+# bun ./bun.lockb --hash: FB1C344BE4E1C170-a59dde1fb7411c09-538A0DE39E28C689-3912799b87d41761
 
 
 "@ampproject/remapping@^2.2.0":
@@ -25,19 +25,19 @@
   integrity sha512-uU27kfDRlhfKl+w1U6vp16IuvSLtjAxdArVXPa9BvLkrr7CYIsxH5adpHObeAGY/41+syctUWOZ140a2Rvkgjw==
 
 "@babel/core@>=7.0.0-beta.0 <8", "@babel/core@^7.0.0", "@babel/core@^7.0.0-0", "@babel/core@^7.11.6", "@babel/core@^7.12.3", "@babel/core@^7.8.0":
-  version "7.23.7"
-  resolved "https://registry.npmjs.org/@babel/core/-/core-7.23.7.tgz"
-  integrity sha512-+UpDgowcmqe36d4NwqvKsyPMlOLNGMsfMmQ5WGCu+siCe3t3dfe9njrzGfdN4qq+bcNUt0+Vw6haRxBOycs4dw==
+  version "7.23.6"
+  resolved "https://registry.npmjs.org/@babel/core/-/core-7.23.6.tgz"
+  integrity sha512-FxpRyGjrMJXh7X3wGLGhNDCRiwpWEF74sKjTLDJSG5Kyvow3QZaG0Adbqzi9ZrVjTWpsX+2cxWXD71NMg93kdw==
   dependencies:
     "@ampproject/remapping" "^2.2.0"
     "@babel/code-frame" "^7.23.5"
     "@babel/generator" "^7.23.6"
     "@babel/helper-compilation-targets" "^7.23.6"
     "@babel/helper-module-transforms" "^7.23.3"
-    "@babel/helpers" "^7.23.7"
+    "@babel/helpers" "^7.23.6"
     "@babel/parser" "^7.23.6"
     "@babel/template" "^7.22.15"
-    "@babel/traverse" "^7.23.7"
+    "@babel/traverse" "^7.23.6"
     "@babel/types" "^7.23.6"
     convert-source-map "^2.0.0"
     debug "^4.1.0"
@@ -138,13 +138,13 @@
   resolved "https://registry.npmjs.org/@babel/helper-validator-option/-/helper-validator-option-7.23.5.tgz"
   integrity sha512-85ttAOMLsr53VgXkTbkx8oA6YTfT4q7/HzXSLEYmjcSTJPMPQtvq1BD79Byep5xMUYbGRzEpDsjUf3dyp54IKw==
 
-"@babel/helpers@^7.23.7":
-  version "7.23.7"
-  resolved "https://registry.npmjs.org/@babel/helpers/-/helpers-7.23.7.tgz"
-  integrity sha512-6AMnjCoC8wjqBzDHkuqpa7jAKwvMo4dC+lr/TFBz+ucfulO1XMpDnwWPGBNwClOKZ8h6xn5N81W/R5OrcKtCbQ==
+"@babel/helpers@^7.23.6":
+  version "7.23.6"
+  resolved "https://registry.npmjs.org/@babel/helpers/-/helpers-7.23.6.tgz"
+  integrity sha512-wCfsbN4nBidDRhpDhvcKlzHWCTlgJYUUdSJfzXb2NuBssDSIjc3xcb+znA7l+zYsFljAcGM0aFkN40cR3lXiGA==
   dependencies:
     "@babel/template" "^7.22.15"
-    "@babel/traverse" "^7.23.7"
+    "@babel/traverse" "^7.23.6"
     "@babel/types" "^7.23.6"
 
 "@babel/highlight@^7.23.4":
@@ -268,10 +268,10 @@
     "@babel/parser" "^7.22.15"
     "@babel/types" "^7.22.15"
 
-"@babel/traverse@^7.23.7":
-  version "7.23.7"
-  resolved "https://registry.npmjs.org/@babel/traverse/-/traverse-7.23.7.tgz"
-  integrity sha512-tY3mM8rH9jM0YHFGyfC0/xf+SB5eKUu7HPj7/k3fpi9dAlsMc5YbQvDi0Sh2QTPXqMhyaAtzAr807TIyfQrmyg==
+"@babel/traverse@^7.23.6":
+  version "7.23.6"
+  resolved "https://registry.npmjs.org/@babel/traverse/-/traverse-7.23.6.tgz"
+  integrity sha512-czastdK1e8YByZqezMPFiZ8ahwVMh/ESl9vPgvgdB9AmFMGP5jfpFax74AQgl5zj4XHzqeYAg2l8PuUeRS1MgQ==
   dependencies:
     "@babel/code-frame" "^7.23.5"
     "@babel/generator" "^7.23.6"
@@ -596,9 +596,9 @@
     "@babel/types" "^7.0.0"
 
 "@types/babel__traverse@*", "@types/babel__traverse@^7.0.6":
-  version "7.20.5"
-  resolved "https://registry.npmjs.org/@types/babel__traverse/-/babel__traverse-7.20.5.tgz"
-  integrity sha512-WXCyOcRtH37HAUkpXhUduaxdm82b4GSlyTqajXviN4EfiuPgNYR109xMCKvpl6zPIpua0DGlMEDCq+g8EdoheQ==
+  version "7.20.4"
+  resolved "https://registry.npmjs.org/@types/babel__traverse/-/babel__traverse-7.20.4.tgz"
+  integrity sha512-mSM/iKUk5fDDrEV/e83qY+Cr3I1+Q3qqTuEn++HAWYjEa1+NxZr6CNrcJGf2ZTnq4HoFGC3zaTPZTobCzCFukA==
   dependencies:
     "@babel/types" "^7.20.7"
 
@@ -711,16 +711,16 @@
   integrity sha512-iJt33IQnVRkqeqC7PzBHPTC6fDlRNRW8vjrgqtScAhrmMwe8c4Eo7+fUGTa+XdWrpEgpyKWMYmi2dIwMAYRzPw==
 
 "@types/node@*":
-  version "20.10.6"
-  resolved "https://registry.npmjs.org/@types/node/-/node-20.10.6.tgz"
-  integrity sha512-Vac8H+NlRNNlAmDfGUP7b5h/KA+AtWIzuXy0E6OyP8f1tCLYAtPvKRRDJjAPqhpCb0t6U2j7/xqAuLEebW2kiw==
+  version "20.10.4"
+  resolved "https://registry.npmjs.org/@types/node/-/node-20.10.4.tgz"
+  integrity sha512-D08YG6rr8X90YB56tSIuBaddy/UXAA9RKJoFvrsnogAum/0pmjkgi4+2nx96A330FmioegBWmEYQ+syqCFaveg==
   dependencies:
     undici-types "~5.26.4"
 
 "@types/qs@*":
-  version "6.9.11"
-  resolved "https://registry.npmjs.org/@types/qs/-/qs-6.9.11.tgz"
-  integrity sha512-oGk0gmhnEJK4Yyk+oI7EfXsLayXatCWPHary1MtcmbAifkobT9cM9yutG/hZKIseOU0MqbIwQ/u2nn/Gb+ltuQ==
+  version "6.9.10"
+  resolved "https://registry.npmjs.org/@types/qs/-/qs-6.9.10.tgz"
+  integrity sha512-3Gnx08Ns1sEoCrWssEgTSJs/rsT2vhGP+Ja9cnnk9k4ALxinORlQneLXFeFKOTJMOeZUFD1s7w+w2AphTpvzZw==
 
 "@types/range-parser@*":
   version "1.2.7"
@@ -759,9 +759,9 @@
     "@types/methods" "^1.1.4"
 
 "@types/supertest@^6.0.1":
-  version "6.0.2"
-  resolved "https://registry.npmjs.org/@types/supertest/-/supertest-6.0.2.tgz"
-  integrity sha512-137ypx2lk/wTQbW6An6safu9hXmajAifU/s7szAHLN/FeIm5w7yR0Wkl9fdJMRSHwOn4HLAI0DaB2TOORuhPDg==
+  version "6.0.1"
+  resolved "https://registry.npmjs.org/@types/supertest/-/supertest-6.0.1.tgz"
+  integrity sha512-M1xs8grAWC4RisSEQjyQV0FZzXnL3y796540Q/HCdiPcErwKpcAfvsNQFb4xp+5btSWMOZG1YlDWs2z96pdbcw==
   dependencies:
     "@types/methods" "^1.1.4"
     "@types/superagent" "^8.1.0"
@@ -779,13 +779,6 @@
     "@types/node" "*"
     "@types/webidl-conversions" "*"
 
-"@types/ws@*":
-  version "8.5.10"
-  resolved "https://registry.npmjs.org/@types/ws/-/ws-8.5.10.tgz"
-  integrity sha512-vmQSUcfalpIq0R9q7uTo2lXs6eGIpt9wtnLdMv9LVpIjCA/+ufZRozlVoVelIYixx1ugCBKDhn89vnsEGOCx9A==
-  dependencies:
-    "@types/node" "*"
-
 "@types/yargs@^17.0.8":
   version "17.0.32"
   resolved "https://registry.npmjs.org/@types/yargs/-/yargs-17.0.32.tgz"
@@ -867,7 +860,7 @@ asynckit@^0.4.0:
   resolved "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz"
   integrity sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==
 
-babel-jest@^29.7.0:
+babel-jest@^29.0.0, babel-jest@^29.7.0:
   version "29.7.0"
   resolved "https://registry.npmjs.org/babel-jest/-/babel-jest-29.7.0.tgz"
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@@ -1005,13 +998,9 @@ buffer-from@^1.0.0:
   integrity sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==
 
 bun-types@latest:
-  version "1.0.21"
-  resolved "https://registry.npmjs.org/bun-types/-/bun-types-1.0.21.tgz"
-  integrity sha512-Ugagjf+XZUXDvxDRa3EnhLeMzm2g8ZYFleBF55Ac3GZSzPqdMLAdK9kvZB6M1H4nAFvrEHdV2PHqkzIoNs+3wQ==
-  dependencies:
-    "@types/node" "*"
-    "@types/ws" "*"
-    undici-types "^5.26.4"
+  version "1.0.15"
+  resolved "https://registry.npmjs.org/bun-types/-/bun-types-1.0.15.tgz"
+  integrity sha512-XkEvWLV1JIhcVIpf2Lu6FXnZUxRUkQVJmgY+VT7os6Tk5X1nkXx11q4Rtu6txsqpDJZfUeZXblnnD59K+6wsVA==
 
 bytes@3.1.2:
   version "3.1.2"
@@ -1043,9 +1032,9 @@ camelcase@^6.2.0:
   integrity sha512-Gmy6FhYlCY7uOElZUSbxo2UCDH8owEk996gkbrpsgGtrJLM3J7jGxl9Ic7Qwwj4ivOE5AWZWRMecDdF7hqGjFA==
 
 caniuse-lite@^1.0.30001565:
-  version "1.0.30001574"
-  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001574.tgz"
-  integrity sha512-BtYEK4r/iHt/txm81KBudCUcTy7t+s9emrIaHqjYurQ10x71zJ5VQ9x1dYPcz/b+pKSp4y/v1xSI67A+LzpNyg==
+  version "1.0.30001571"
+  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001571.tgz"
+  integrity sha512-tYq/6MoXhdezDLFZuCO/TKboTzuQ/xR5cFdgXPfDtM7/kchBO3b4VWghE/OAi/DV7tTdhmLjZiZBZi1fA/GheQ==
 
 chalk@^2.4.2:
   version "2.4.2"
@@ -1272,9 +1261,9 @@ ee-first@1.1.1:
   integrity sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==
 
 electron-to-chromium@^1.4.601:
-  version "1.4.623"
-  resolved "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.4.623.tgz"
-  integrity sha512-lKoz10iCYlP1WtRYdh5MvocQPWVRoI7ysp6qf18bmeBgR8abE6+I2CsfyNKztRDZvhdWc+krKT6wS7Neg8sw3A==
+  version "1.4.616"
+  resolved "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.4.616.tgz"
+  integrity sha512-1n7zWYh8eS0L9Uy+GskE0lkBUNK83cXTVJI0pU3mGprFsbfSdAc15VTFbo+A+Bq4pwstmL30AVcEU3Fo463lNg==
 
 emittery@^0.13.1:
   version "0.13.1"
@@ -2927,7 +2916,7 @@ type-is@~1.6.18:
   resolved "https://registry.npmjs.org/typescript/-/typescript-5.3.3.tgz"
   integrity sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==
 
-undici-types@^5.26.4, undici-types@~5.26.4:
+undici-types@~5.26.4:
   version "5.26.5"
   resolved "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz"
   integrity sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==