enabled openapi docs

README.md

@@ -256,7 +256,9 @@ To test: `npm run test` and `npm run test:e2e`.
 
 To start: `npm run start`.
 
-This is a RESTful API. To get package info, send GET request to e.g. `/packages/UPS/TN12345679`.
+This is a RESTful API.
+To get package info, send GET request to e.g. `/packages/UPS/TN12345679`.
+OpenAPI documentation is available at `/api` (it's limited, and return type is not described because I didn't have enough time).
 
 ## Discussion points
 

package-lock.json

@@ -12,6 +12,7 @@
         "@nestjs/common": "^10.0.0",
         "@nestjs/core": "^10.0.0",
         "@nestjs/platform-express": "^10.0.0",
+        "@nestjs/swagger": "^7.1.14",
         "lodash": "^4.17.21",
         "node-fetch": "^2.7.0",
         "node-geocoder": "^4.2.0",
@@ -1604,6 +1605,25 @@
         }
       }
     },
+    "node_modules/@nestjs/mapped-types": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/mapped-types/-/mapped-types-2.0.2.tgz",
+      "integrity": "sha512-V0izw6tWs6fTp9+KiiPUbGHWALy563Frn8X6Bm87ANLRuE46iuBMD5acKBDP5lKL/75QFvrzSJT7HkCbB0jTpg==",
+      "peerDependencies": {
+        "@nestjs/common": "^8.0.0 || ^9.0.0 || ^10.0.0",
+        "class-transformer": "^0.4.0 || ^0.5.0",
+        "class-validator": "^0.13.0 || ^0.14.0",
+        "reflect-metadata": "^0.1.12"
+      },
+      "peerDependenciesMeta": {
+        "class-transformer": {
+          "optional": true
+        },
+        "class-validator": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@nestjs/platform-express": {
       "version": "10.2.7",
       "resolved": "https://registry.npmjs.org/@nestjs/platform-express/-/platform-express-10.2.7.tgz",
@@ -1696,6 +1716,37 @@
         "node": ">=12"
       }
     },
+    "node_modules/@nestjs/swagger": {
+      "version": "7.1.14",
+      "resolved": "https://registry.npmjs.org/@nestjs/swagger/-/swagger-7.1.14.tgz",
+      "integrity": "sha512-2Ol4S6qHeYVVmkshkWBM8E/qkmEqEOUj2QIewr0jLSyo30H7f3v81pJyks6pTLy4PK0LGUXojMvIfFIE3mmGQQ==",
+      "dependencies": {
+        "@nestjs/mapped-types": "2.0.2",
+        "js-yaml": "4.1.0",
+        "lodash": "4.17.21",
+        "path-to-regexp": "3.2.0",
+        "swagger-ui-dist": "5.9.0"
+      },
+      "peerDependencies": {
+        "@fastify/static": "^6.0.0",
+        "@nestjs/common": "^9.0.0 || ^10.0.0",
+        "@nestjs/core": "^9.0.0 || ^10.0.0",
+        "class-transformer": "*",
+        "class-validator": "*",
+        "reflect-metadata": "^0.1.12"
+      },
+      "peerDependenciesMeta": {
+        "@fastify/static": {
+          "optional": true
+        },
+        "class-transformer": {
+          "optional": true
+        },
+        "class-validator": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@nestjs/testing": {
       "version": "10.2.7",
       "resolved": "https://registry.npmjs.org/@nestjs/testing/-/testing-10.2.7.tgz",
@@ -2669,8 +2720,7 @@
     "node_modules/argparse": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
-      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
+      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
-      "dev": true
     },
     "node_modules/array-flatten": {
       "version": "1.1.1",
@@ -5910,7 +5960,6 @@
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
       "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
-      "dev": true,
       "dependencies": {
         "argparse": "^2.0.1"
       },
@@ -7794,6 +7843,11 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/swagger-ui-dist": {
+      "version": "5.9.0",
+      "resolved": "https://registry.npmjs.org/swagger-ui-dist/-/swagger-ui-dist-5.9.0.tgz",
+      "integrity": "sha512-NUHSYoe5XRTk/Are8jPJ6phzBh3l9l33nEyXosM17QInoV95/jng8+PuSGtbD407QoPf93MH3Bkh773OgesJpA=="
+    },
     "node_modules/symbol-observable": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-4.0.0.tgz",

package.json

@@ -23,6 +23,7 @@
     "@nestjs/common": "^10.0.0",
     "@nestjs/core": "^10.0.0",
     "@nestjs/platform-express": "^10.0.0",
+    "@nestjs/swagger": "^7.1.14",
     "lodash": "^4.17.21",
     "node-fetch": "^2.7.0",
     "node-geocoder": "^4.2.0",

src/main.ts

@@ -1,8 +1,17 @@
 import { NestFactory } from '@nestjs/core';
+import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
 import { AppModule } from './app.module';
 
 async function bootstrap() {
     const app = await NestFactory.create(AppModule);
+
+    const config = new DocumentBuilder()
+        .setTitle('Test parcelLab assignment')
+        .setVersion('1.0')
+        .build();
+    const document = SwaggerModule.createDocument(app, config);
+    SwaggerModule.setup('api', app, document);
+
     await app.listen(3000);
 }
 void bootstrap();