diff --git a/src/config.ts b/src/config.ts
index d4ae8b54..4e7890d6 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -108,7 +108,6 @@ export const API_DOCS = 'https://docs.igboapi.com';
 export const SPEECH_TO_TEXT_API = isProduction
   ? 'https://speech.igboapi.com'
   : 'http://localhost:3333';
-
 export const IGBO_TO_ENGLISH_API = ENV_IGBO_TO_ENGLISH_URL;
 // SendGrid API
 export const SENDGRID_API_KEY = SENDGRID_API_KEY_SOURCE || '';
diff --git a/src/controllers/__tests__/translation.test.ts b/src/controllers/__tests__/translation.test.ts
index 12db431f..54768a8f 100644
--- a/src/controllers/__tests__/translation.test.ts
+++ b/src/controllers/__tests__/translation.test.ts
@@ -3,7 +3,8 @@ import {
   requestFixture,
   responseFixture,
   nextFunctionFixture,
-} from '../../../__tests__/shared/fixtures';
+} from '../../__tests__/shared/fixtures';
+import { MAIN_KEY } from '../../../__tests__/shared/constants';
 import { getTranslation } from '../translation';
 
 describe('translation', () => {
@@ -15,7 +16,7 @@ describe('translation', () => {
       body: { igbo: 'aka' },
       headers: {
         'Content-Type': 'application/json',
-        'X-API-Key': 'main_key',
+        'X-API-Key': MAIN_KEY,
       },
     });
     const res = responseFixture();
@@ -32,7 +33,7 @@ describe('translation', () => {
       body: { igbo: 'aka'.repeat(100) },
       headers: {
         'Content-Type': 'application/json',
-        'X-API-Key': 'main_key',
+        'X-API-Key': MAIN_KEY,
       },
     });
     const res = responseFixture();
@@ -41,14 +42,16 @@ describe('translation', () => {
       data: { igbo: 'aka'.repeat(100) },
     });
     await getTranslation(req, res, next);
-    expect(next).toHaveBeenCalled();
+    expect(next).toHaveBeenCalledWith(
+      new Error('Cannot translate text greater than 120 characters')
+    );
   });
   it('throws validation error when input string is empty', async () => {
     const req = requestFixture({
       body: { igbo: '' },
       headers: {
         'Content-Type': 'application/json',
-        'X-API-Key': 'main_key',
+        'X-API-Key': MAIN_KEY,
       },
     });
     const res = responseFixture();
@@ -57,6 +60,6 @@ describe('translation', () => {
       data: { igbo: '' },
     });
     await getTranslation(req, res, next);
-    expect(next).toHaveBeenCalled();
+    expect(next).toHaveBeenCalledWith(new Error('Cannot translate empty string'));
   });
 });
diff --git a/src/middleware/helpers/authorizeDeveloperUsage.ts b/src/middleware/helpers/authorizeDeveloperUsage.ts
index 6a9307e4..d7552076 100644
--- a/src/middleware/helpers/authorizeDeveloperUsage.ts
+++ b/src/middleware/helpers/authorizeDeveloperUsage.ts
@@ -67,6 +67,13 @@ export const authorizeDeveloperUsage = async ({
   });
 };
 
+/**
+ * The function maps route strings to the APIType Enum that would represent usage
+ * of the route
+ * @param route The string name of the route
+ * @returns The ApiType of the route passed as input. For example /speech-to-text would
+ *          route to the Speech-to-Text API type
+ */
 const getApiTypeFromRoute = (route: string): ApiType => {
   switch (route) {
     case ApiTypeToRoute.SPEECH_TO_TEXT:
diff --git a/src/routers/routerV2.ts b/src/routers/routerV2.ts
index 5d08c074..0e9c29e5 100644
--- a/src/routers/routerV2.ts
+++ b/src/routers/routerV2.ts
@@ -1,5 +1,4 @@
 import { Router } from 'express';
-import rateLimit from 'express-rate-limit';
 import { getWords, getWord } from '../controllers/words';
 import { getExample, getExamples } from '../controllers/examples';
 import { getNsibidiCharacter, getNsibidiCharacters } from '../controllers/nsibidi';
@@ -9,16 +8,6 @@ import validId from '../middleware/validId';
 import validateApiKey from '../middleware/validateApiKey';
 import analytics from '../middleware/analytics';
 import attachRedisClient from '../middleware/attachRedisClient';
-import { MiddleWare } from 'src/types';
-
-// TODO: add rate limiting with upstash
-// const ONE_DAY = 24 * 60 * 60 * 1000;
-// const REQUESTS_PER_MS_TRANSLATION = 5;
-
-// const translationRateLimiter: MiddleWare = rateLimit({
-//   windowMs: ONE_DAY,
-//   max: REQUESTS_PER_MS_TRANSLATION,
-// });
 
 const routerV2 = Router();