This is a simple API built with Express and TypeScript for currency exchange operations.

• POST /currencyExchange: Exchanges one currency to another. The request body should be in the following format:

{
  "from_currency": "EUR",
  "to_currency": "PLN",
  "amount": 123.33,
  "date": "2023-01-01"
}

• POST /currency: Adds new currency rates. The request body should be in the following format:

{
  "currencies": [
    {
      "currency": "EUR",
      "price_pln": "4.31",
      "date": "2023-01-01"
    },
    {
      "currency": "EUR",
      "price_pln": "3.98",
      "date": "2023-01-01"
    }
  ]
}

• GET /currency: Retrieves all currency rates.

You can test the API using the provided test.http file in WebStorm. Each request is separated by ###. You can click on the green arrow to the left of each request to run it. Please replace localhost:3000 with your server's address and port if they are different.

Alternatively, you can use curl commands in the terminal to test the API. Here are the commands for each endpoint:

• GET /health-check:

curl -X GET http://localhost:3000/health-check

• POST /currencyExchange:

curl -X POST -H "Content-Type: application/json" -d '{
  "from_currency": "EUR",
  "to_currency": "PLN",
  "amount": 123.33,
  "date": "2023-01-01"
}' http://localhost:3000/currencyExchange

• POST /currency:

curl -X POST -H "Content-Type: application/json" -d '{
  "currencies": [
    {
      "currency": "EUR",
      "price_pln": "4.31",
      "date": "2023-01-01"
    },
    {
      "currency": "EUR",
      "price_pln": "3.98",
      "date": "2023-01-01"
    }
  ]
}' http://localhost:3000/currency

• GET /currency:

curl -X GET http://localhost:3000/currency

Please replace localhost:3000 with your server's address and port if they are different.

This project is based on the ts-node-express repository by c99rahul.