clone repo:

• run npm install in root of project && within the /client folder
• rename .env-example files to .env in both the root & /client folder
• add a private.key file to hold your Nexmo key in root of project
• Fill in the .env files with your personal credentials:

In tweet-sentiment-analysis/.env:

API_KEY=*******      
API_SECRET=*******    
APPLICATION_ID=*******    
NEXMO_NUMBER=*******    

CONSUMER_KEY=*******     
CONSUMER_SECRET=*******     
ACCESS_TOKEN_KEY=*******    
ACCESS_TOKEN_SECRET=*******      

In tweet-sentiment-analysis/private.key:

-----BEGIN PRIVATE KEY-----     
XYZ123****xxx123XYZ***    
-----END PRIVATE KEY-----       

In tweet-sentiment-analysis/client/.env:

REACT_APP_RAPIDAPI_KEY=*******         

npm run dev

Runs both server and client simultaneously by running npm run dev
Open localhost:3000 to see React app's content