tep 1 ) ✅ Node.js API Setup

mkdir currency-conversion-service  
cd currency-conversion-service  
npm init -y  
npm install express body-parser  

step 2 ) 📄 Create: server.js

node server.js(paste server.js code in it)


step 3 )🧪 Test API in Postman

- Method: POST  
- URL: http://localhost:3000/convert  
- Body: { "amount_in_rs": 1000 }


☕ Java Client

step 4) 📄 Create: CurrencyClient.java

javac CurrencyClient.java  (paste currencyclient.java code in it)
java CurrencyClient


step 5) 💠 .NET Client

dotnet new console -n DotnetCurrencyClient  
cd DotnetCurrencyClient  

📄 Edit: Program.cs(paste program.js code in it)

dotnet run




#optional


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