What are struct tags in Go?

What are struct tags in Go?

Struct tags in Go are metadata attached to struct fields, often used for serialization or validation.

Can you give me an example of how to use struct tags?

Sure! Here's a simple example:

type User struct {
    Name  string `json:"name"`
    Email string `json:"email"`
}

In this case, the struct tags specify how to serialize the fields to JSON.

Are struct tags mandatory in Go?

No, struct tags are optional. They are used for specific purposes like JSON encoding/decoding but are not required.

What other uses do struct tags have?

Struct tags can also be used for validation, ORM mapping, and other frameworks that require metadata.