Installation

GitHub Repository

go-validator is an open-source project. You can find the source code and contribute to the project on GitHub:

Install the latest version of go-validator via:

go get github.com/kthehatter/go-validator/validator

For Gin framework integration, also install the Gin adapter:

go get github.com/kthehatter/go-validator/validator/ginadapter

Note: Ensure you are using Go 1.18+ for compatibility.

Introduce the core components of the package and their roles.

Defines the validation rules for a specific field in the object to be validated e.g. the request body.

Fields:
- Key: The name of the field in the request body.
- IsOptional: Whether the field is optional.
- Validators: A list of validators to apply to the field.
- Transformers: A list of transformers to modify the field's value.
- Nested: Validation rules for nested objects.

Represents a single validation rule.

Fields:
- Func: The validation function.
- Message: The error message to return if validation fails.

A function that modifies the value of a field before validation.

The main function used to validate a request body against a set of ValidationOption.

func Validate(body map[string]interface{}, options []ValidationOption) error