✨ text translations

.env.example

@@ -1,3 +1,7 @@
 PORT=
 
 MONGODB_URL=
+
+AZURE_OCP_APIM_SUBSCRIPTION_KEY=
+
+AZURE_OCP_APIM_REGION=

graphql/translate.graphql

@@ -0,0 +1,9 @@
+input TranslateInput {
+  text: String!
+  source: String!
+  target: String!
+}
+
+type Query {
+  translate(input: TranslateInput!): String!
+}

package.json

@@ -24,6 +24,7 @@
   },
   "dependencies": {
     "@nestjs/apollo": "^10.1.7",
+    "@nestjs/axios": "^0.1.0",
     "@nestjs/common": "^9.0.0",
     "@nestjs/config": "^2.3.0",
     "@nestjs/core": "^9.0.0",

src/app.module.ts

@@ -7,6 +7,7 @@ import { ApolloDriverConfig, ApolloDriver } from '@nestjs/apollo';
 import { ConfigModule } from '@nestjs/config';
 import { AuthenticationModule } from './authentication/authentication.module';
 import { PrismaService } from 'prisma/prisma.service';
+import { TranslateModule } from './translate/translate.module';
 
 @Module({
   imports: [
@@ -19,6 +20,7 @@ import { PrismaService } from 'prisma/prisma.service';
     }),
     ConfigModule.forRoot(),
     AuthenticationModule,
+    TranslateModule,
   ],
   controllers: [AppController],
   providers: [AppService, PrismaService],

src/constants/env.ts

@@ -1,4 +1,10 @@
 import * as dotenv from 'dotenv';
 dotenv.config();
 
-export const { PORT, MONGODB_URL, JWT_SECRET_KEY } = process.env;
+export const {
+  PORT,
+  MONGODB_URL,
+  JWT_SECRET_KEY,
+  AZURE_OCP_APIM_SUBSCRIPTION_KEY,
+  AZURE_OCP_APIM_REGION,
+} = process.env;

src/graphql.types.ts

@@ -8,13 +8,25 @@
 /* tslint:disable */
 /* eslint-disable */
 
+export class TranslateInput {
+    text: string;
+    source: string;
+    target: string;
+}
+
 export class SignupInput {
     name: string;
     email: string;
     profilePicture: string;
     language: string;
 }
 
+export abstract class IQuery {
+    abstract translate(input: TranslateInput): string | Promise<string>;
+
+    abstract getUser(): User | Promise<User>;
+}
+
 export class User {
     id: string;
     name: string;
@@ -25,10 +37,6 @@ export class User {
     updatedAt: DateTime;
 }
 
-export abstract class IQuery {
-    abstract getUser(): User | Promise<User>;
-}
-
 export abstract class IMutation {
     abstract signup(input: SignupInput): string | Promise<string>;
 }

src/translate/translate.module.ts

@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { TranslateService } from './translate.service';
+import { TranslateResolver } from './translate.resolver';
+
+@Module({
+  providers: [TranslateResolver, TranslateService],
+})
+export class TranslateModule {}

src/translate/translate.resolver.ts

@@ -0,0 +1,13 @@
+import { Args, Query, Resolver } from '@nestjs/graphql';
+import { TranslateInput } from 'src/graphql.types';
+import { TranslateService } from './translate.service';
+
+@Resolver()
+export class TranslateResolver {
+  constructor(private readonly translateService: TranslateService) {}
+
+  @Query('translate')
+  async translate(@Args('input') input: TranslateInput) {
+    return await this.translateService.translate(input);
+  }
+}

src/translate/translate.service.ts

@@ -0,0 +1,31 @@
+import { BadGatewayException, Injectable } from '@nestjs/common';
+import {
+  AZURE_OCP_APIM_REGION,
+  AZURE_OCP_APIM_SUBSCRIPTION_KEY,
+} from 'src/constants/env';
+import { TranslateInput } from 'src/graphql.types';
+import axios from 'axios';
+
+@Injectable()
+export class TranslateService {
+  async translate(input: TranslateInput): Promise<string> {
+    try {
+      const res = await axios.post(
+        `https://api.cognitive.microsofttranslator.com/translate?api-version=3.0&from=${input.source}&to=${input.target}`,
+        JSON.stringify([{ text: input.text }]),
+        {
+          headers: {
+            'Ocp-Apim-Subscription-Key': AZURE_OCP_APIM_SUBSCRIPTION_KEY,
+            'Ocp-Apim-Subscription-Region': AZURE_OCP_APIM_REGION,
+            'Content-type': 'application/json',
+          },
+        },
+      );
+      return res.data[0].translations[0].text;
+    } catch {
+      throw new BadGatewayException(
+        'An error occurred while translating. Please check language or try again later.',
+      );
+    }
+  }
+}

yarn.lock

@@ -882,6 +882,13 @@
     lodash.omit "4.5.0"
     tslib "2.4.1"
 
+"@nestjs/axios@^0.1.0":
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/@nestjs/axios/-/axios-0.1.2.tgz#6bcfe23836d521739b4a80b0889a4a51561399bd"
+  integrity sha512-KFW37K5ujSce3lukNp9Uym5T6/oKCDw8EQRYhAKdNiBveMtotkokJwKIHVKCc21qfXMyes4291eR2No1Sf/fow==
+  dependencies:
+    axios "1.2.1"
+
 "@nestjs/cli@^9.0.0":
   version "9.2.0"
   resolved "https://registry.yarnpkg.com/@nestjs/cli/-/cli-9.2.0.tgz#d174f54d7aaa6695b8e413093e3d18367bc8bec7"
@@ -1866,6 +1873,15 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==
 
+[email protected]:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-1.2.1.tgz#44cf04a3c9f0c2252ebd85975361c026cb9f864a"
+  integrity sha512-I88cFiGu9ryt/tfVEi4kX2SITsvDddTajXTOFmt2uK1ZVA8LytjtdeyefdQWEf5PU8w+4SSJDoYnggflB5tW4A==
+  dependencies:
+    follow-redirects "^1.15.0"
+    form-data "^4.0.0"
+    proxy-from-env "^1.1.0"
+
 babel-jest@^29.4.1:
   version "29.4.1"
   resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-29.4.1.tgz#01fa167e27470b35c2d4a1b841d9586b1764da19"
@@ -2898,6 +2914,11 @@ flatted@^3.1.0:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.2.7.tgz#609f39207cb614b89d0765b477cb2d437fbf9787"
   integrity sha512-5nqDSxl8nn5BSNxyR3n4I6eDmbolI6WT+QqR547RwxQapgjQBmtktdP+HTBb/a/zLsbzERTONyUB5pefh5TtjQ==
 
+follow-redirects@^1.15.0:
+  version "1.15.2"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.15.2.tgz#b460864144ba63f2681096f274c4e57026da2c13"
+  integrity sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA==
+
 [email protected]:
   version "7.3.0"
   resolved "https://registry.yarnpkg.com/fork-ts-checker-webpack-plugin/-/fork-ts-checker-webpack-plugin-7.3.0.tgz#a9c984a018493962360d7c7e77a67b44a2d5f3aa"
@@ -4436,6 +4457,11 @@ proxy-addr@~2.0.7:
     forwarded "0.2.0"
     ipaddr.js "1.9.1"
 
+proxy-from-env@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.1.0.tgz#e102f16ca355424865755d2c9e8ea4f24d58c3e2"
+  integrity sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==
+
 pump@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"