rodcorsi / vld

Fast struct field validation

vld

Package written in Go for validation of string, numbers and structs without use of tags

Vld may not be considered stable just yet!

Installation

You'll need Go installed

go get github.com.br/rodcorsi/vld

Usage

oldID := "123"
p := Product{
    ID:    "12",
    OldID: &oldID,
    Descr: "ff",
    Qty:   10,
}

validate := vld.New()

// use && to stop verification if has one error
// you can use || to check all errors
_ = validate.Ok("id", vld.String(p.ID).Required().Length(1, 20).Error()) &&
    validate.Ok("old_id", vld.StrPtr(p.OldID).Length(2, 20).Error()) &&
    validate.Ok("descr", vld.String(string(p.Descr)).Length(2, 20).Error()) &&
    validate.Ok("qty", vld.NumI64(p.Qty).Range(2, 20).Error())

if err := validate.Error(); err != nil {
    fmt.Println(err)
}

Benchmark

Benchmark comparing other validator

$ go test -run=NONE -bench=. -benchmem ./example/
goos: linux
goarch: amd64
pkg: github.com/rodcorsi/vld/example
BenchmarkGovalidator-4            100000             17955 ns/op            2424 B/op         39 allocs/op
BenchmarkValidator-4             1000000              1045 ns/op              64 B/op          2 allocs/op
BenchmarkOzzo-4                   200000              7863 ns/op            2104 B/op         50 allocs/op
BenchmarkFourSigma-4              500000              2103 ns/op             688 B/op         25 allocs/op
BenchmarkVld-4                  100000000               16.7 ns/op             0 B/op          0 allocs/op