Background

The Back-End project challenge is to create an API that sync contacts from MockAPI to Mailchimp. Trio suggested implementing the project with Java, as it's the language I have the most experience with, but I will implement it in Golang, as a challenge.

Objectives

The API will cover the following objects:

• create an API that syncs contacts from MockAPI to Mailchimp, get each contact's first name, last name, and email address from MockAPI, and create them as new members of a new list on Mailchimp (MockAPI: https://challenge.trio.dev/api/v1/contacts).
• The new list on Mailchimp should have your personal name (e.g.: Vitor Benedito).
• Upload a private GitHub repo for the back-end and add [email protected] as a collaborator
• Deploy the project on a free platform and share the demo link
• The web server should have this endpoint GET /contacts/sync to trigger the integration
• The /contacts/sync endpoint should return the list of synced contacts in JSON following this structure:

{
	"syncedContacts": 1, // total synced contacts
  "contacts": [
		{
			"firstName": "Amelia",
			"lastName": "Earhart",
      "email": "[email protected]",
		},
	]
}

• Technical design (add Google Doc link to project README file)
• Record a video with your screen and camera walking through your solution answering the following questions:
  • How does the software work?
  • How did you build the project?
  • Why did you build it in that way?
• The video link should be provided on the project README

Technical Design

First of all, I started to studing the Mailchimp API, witch I didn't have any experience. So to complete the chalenge to add the email in a list, I found all these API's that I must to use to code the project.

I decided to use Golang as programming language, Gin as HTTP WebServer and AWS API-Gateway and Lambdas, for a serverless deploy. To deploy the HTTP Server I used the https://render.com, witch was very simple to deploy the Golang Server.