Ecosyste.ms: Packages
An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.
Top 0.6% forks on proxy.golang.org
proxy.golang.org : gopkg.in/go-playground/validator.v3
Package validator implements value validations for structs and individual fields based on tags. Built In Validator A simple example usage: The error can be used like so Both StructValidationErrors and FieldValidationError implement the Error interface but it's intended use is for development + debugging, not a production error message. Why not a better error message? because this library intends for you to handle your own error messages Why should I handle my own errors? Many reasons, for me building an internationalized application I needed to know the field and what validation failed so that I could provide an error in the users specific language. The hierarchical error structure is hard to work with sometimes.. Agreed Flatten function to the rescue! Flatten will return a map of FieldValidationError's but the field name will be namespaced. Custom functions can be added Cross Field Validation can be implemented, for example Start & End Date range validation Multiple validators on a field will process in the order defined Bad Validator definitions are not handled by the library Here is a list of the current built in validators: Validator notes: This package panics when bad input is provided, this is by design, bad code like that should not make it to production.
Registry
-
Source
- Documentation
- JSON
purl: pkg:golang/gopkg.in/go-playground/validator.v3
Keywords: error-handling, translation, validation
License: MIT
Latest release: about 9 years ago
First release: about 9 years ago
Namespace: gopkg.in/go-playground
Stars: 12,713 on GitHub
Forks: 1,155 on GitHub
See more repository details: repos.ecosyste.ms
Last synced: 17 days ago