Building Microservices API in Go - Database Adapter

The video tutorial continues the exploration of hexagonal architecture by introducing a real database adapter for a MySQL database. It guides viewers through setting up a MySQL database using Docker, implementing a database adapter in GoLang, and handling database queries and errors. The tutorial emphasizes the benefits of hexagonal architecture in decoupling server-side components and previews the next steps in developing an API for customer retrieval.

What is the main purpose of introducing a real database adapter in hexagonal architecture?

• To improve the user interface

• To replace the domain logic

• To connect the application to a real database

• To enhance the security features

Which database is used in the tutorial for setting up the real database adapter?

• PostgreSQL

• MySQL

• MongoDB

• SQLite

What is the first step in setting up a MySQL database for the application?

• Running a script to create tables

• Configuring the network settings

• Installing the MySQL driver

• Creating a new user

What method does the customer repository DB need to implement?

• delete

• update

• findAll

• findOne

What is the purpose of the 'scan' method in the database adapter implementation?

• To execute SQL commands

• To retrieve data from rows

• To close the database connection

• To log errors

Why is it important to move the connection pool creation to a helper function?

• To reduce code complexity

• To avoid creating a new pool every time

• To increase the number of connections

• To improve error handling

What is the default port number for MySQL as mentioned in the tutorial?

• 3306

• 1521

• 1433

• 5432

What is a key benefit of hexagonal architecture in software development?

• It increases the speed of the application

• It allows for easy swapping of database technologies

• It simplifies the user interface design

• It reduces the need for testing

How does hexagonal architecture help when the database is not available?

• By pausing the development process

• By allowing development with stubs

• By using a different database

• By switching to a cloud database

What will be covered in the next video according to the transcript?

• Improving application security

• Setting up a new database

• Writing an API to retrieve customer by ID

• Implementing a new user interface