USD to BRL Exchange Rate System

Overview

This system fetches the current exchange rate between the US dollar (USD) and the Brazilian real (BRL). It consists of two components:

• Server component:

  • Retrieves exchange rate data from: https://economia.awesomeapi.com.br/json/last/USD-BRL
  • Persists the retrieved exchange rate into an SQLite database
  • Exposes an endpoint at: {server_url}:8080/cotacao

• Client component:

  • Interacts with the server through the /cotacao endpoint.
  • Retrieves and displays the received exchange rate.
  • Saves the retrieved rate to a file named cotacao.txt.

Components

• Server:
  • Located in the server/cmd directory.
  • Main program file: server.go.
• Client:
  • Located in the client/cmd directory.
  • Main program file: client.go.

Prerequisites

• Go language installed (https://golang.org/dl/)

Running the System

1. Start the Server:

   • Navigate to the server/cmd directory.
   • Run the command: go run server.go

2. Run the Client:

   • Open a separate terminal window.
   • Navigate to the client/cmd directory.
   • Run the command: go run client.go