Building Microservices API in Go - JSON Encoding

The video tutorial covers JSON marshalling in Golang, starting with a recap of multiplexers in HTTP servers. It demonstrates creating a struct for customer data, encoding it to JSON, and setting the correct content type in response headers. The tutorial also explains customizing JSON keys using tags and concludes with a preview of XML marshalling.

What is the primary focus of this video tutorial?

• Setting up a database connection

• Learning to encode struct data to JSON

• Understanding multiplexers in HTTP servers

• Exploring XML marshaling

What fields are included in the 'customer' struct?

• Name, City, Zip Code

• Name, Email, Phone Number

• Name, Country, Postal Code

• Name, Age, Address

Which library is used in Golang to encode data into JSON format?

• fmt

• json

• http

• io

Why is it important to set the correct content type in the response header?

• To improve server performance

• To reduce data size

• To ensure the client interprets the data correctly

• To enhance security

How can you set the content type to 'application/json' in Golang?

• Using W.Header().Set() method

• By modifying the server configuration

• Using the fmt package

• By changing the file extension

What is the purpose of using struct tags in Golang?

• To guide the JSON encoder on field names

• To add comments to the code

• To define default values for fields

• To enforce data validation

How do struct tags affect the JSON response?

• They determine the order of fields

• They change the data type of fields

• They encrypt the field values

• They specify the field names in the JSON output