status-im/status-go

package requests

import (
    "errors"
)

var ErrFetchMessagesInvalidID = errors.New("fetch-messages: invalid id")

type FetchMessages struct {
    ID string `json:"id"`
}

func (c *FetchMessages) Validate() error {
    if len(c.ID) == 0 {
        return ErrFetchMessagesInvalidID
    }

    return nil
}