Configuração de API para Envio de SMS via AWS

This document provides instructions for setting up an SMS sending system using AWS services (API Gateway, Lambda, and SNS). The solution consists of API Gateway receiving HTTP POST requests, Lambda processing the requests and calling SNS, and SNS sending SMS messages to recipients. The Lambda function extracts the phone number and message content from the request body, validates the data, and sends the SMS using SNS. The infrastructure setup involves creating a Lambda function, API Gateway, and configuring authentication with an API key. The API key is associated with a usage plan, and the API is deployed. To use the API, send a POST request to the API endpoint with the phone number and message content in the request body, and include the API key in the request header. Additional considerations include security, monitoring, SMS limits, costs.