💯Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
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validator/examples/simple/main.go

102 lines
2.5 KiB

RC1 Release - Updated docs ( much more to come ) - v9 is much simpler to use. v8 vs v9 improvements ``` benchmark old ns/op new ns/op delta BenchmarkFieldSuccess-8 118 147 +24.58% BenchmarkFieldFailure-8 758 417 -44.99% BenchmarkFieldDiveSuccess-8 2471 876 -64.55% BenchmarkFieldDiveFailure-8 3172 1185 -62.64% BenchmarkFieldCustomTypeSuccess-8 300 321 +7.00% BenchmarkFieldCustomTypeFailure-8 775 416 -46.32% BenchmarkFieldOrTagSuccess-8 1122 1119 -0.27% BenchmarkFieldOrTagFailure-8 1167 715 -38.73% BenchmarkStructLevelValidationSuccess-8 548 399 -27.19% BenchmarkStructLevelValidationFailure-8 558 749 +34.23% BenchmarkStructSimpleCustomTypeSuccess-8 623 673 +8.03% BenchmarkStructSimpleCustomTypeFailure-8 1381 1056 -23.53% BenchmarkStructPartialSuccess-8 1036 789 -23.84% BenchmarkStructPartialFailure-8 1734 1105 -36.27% BenchmarkStructExceptSuccess-8 888 1212 +36.49% BenchmarkStructExceptFailure-8 1036 1004 -3.09% BenchmarkStructSimpleCrossFieldSuccess-8 773 656 -15.14% BenchmarkStructSimpleCrossFieldFailure-8 1487 968 -34.90% BenchmarkStructSimpleCrossStructCrossFieldSuccess-8 1261 1000 -20.70% BenchmarkStructSimpleCrossStructCrossFieldFailure-8 2055 1324 -35.57% BenchmarkStructSimpleSuccess-8 519 534 +2.89% BenchmarkStructSimpleFailure-8 1429 1039 -27.29% BenchmarkStructSimpleSuccessParallel-8 146 144 -1.37% BenchmarkStructSimpleFailureParallel-8 551 419 -23.96% BenchmarkStructComplexSuccess-8 3269 2678 -18.08% BenchmarkStructComplexFailure-8 8436 6342 -24.82% BenchmarkStructComplexSuccessParallel-8 1024 874 -14.65% BenchmarkStructComplexFailureParallel-8 3536 2875 -18.69% benchmark old allocs new allocs delta BenchmarkFieldSuccess-8 0 0 +0.00% BenchmarkFieldFailure-8 4 4 +0.00% BenchmarkFieldDiveSuccess-8 28 11 -60.71% BenchmarkFieldDiveFailure-8 32 16 -50.00% BenchmarkFieldCustomTypeSuccess-8 2 2 +0.00% BenchmarkFieldCustomTypeFailure-8 4 4 +0.00% BenchmarkFieldOrTagSuccess-8 1 1 +0.00% BenchmarkFieldOrTagFailure-8 6 5 -16.67% BenchmarkStructLevelValidationSuccess-8 5 2 -60.00% BenchmarkStructLevelValidationFailure-8 5 8 +60.00% BenchmarkStructSimpleCustomTypeSuccess-8 3 2 -33.33% BenchmarkStructSimpleCustomTypeFailure-8 9 9 +0.00% BenchmarkStructPartialSuccess-8 9 6 -33.33% BenchmarkStructPartialFailure-8 14 11 -21.43% BenchmarkStructExceptSuccess-8 7 12 +71.43% BenchmarkStructExceptFailure-8 9 10 +11.11% BenchmarkStructSimpleCrossFieldSuccess-8 4 3 -25.00% BenchmarkStructSimpleCrossFieldFailure-8 9 8 -11.11% BenchmarkStructSimpleCrossStructCrossFieldSuccess-8 7 4 -42.86% BenchmarkStructSimpleCrossStructCrossFieldFailure-8 12 9 -25.00% BenchmarkStructSimpleSuccess-8 1 0 -100.00% BenchmarkStructSimpleFailure-8 9 9 +0.00% BenchmarkStructSimpleSuccessParallel-8 1 0 -100.00% BenchmarkStructSimpleFailureParallel-8 9 9 +0.00% BenchmarkStructComplexSuccess-8 15 8 -46.67% BenchmarkStructComplexFailure-8 60 53 -11.67% BenchmarkStructComplexSuccessParallel-8 15 8 -46.67% BenchmarkStructComplexFailureParallel-8 60 53 -11.67% benchmark old bytes new bytes delta BenchmarkFieldSuccess-8 0 0 +0.00% BenchmarkFieldFailure-8 432 192 -55.56% BenchmarkFieldDiveSuccess-8 464 201 -56.68% BenchmarkFieldDiveFailure-8 896 396 -55.80% BenchmarkFieldCustomTypeSuccess-8 32 32 +0.00% BenchmarkFieldCustomTypeFailure-8 432 192 -55.56% BenchmarkFieldOrTagSuccess-8 4 16 +300.00% BenchmarkFieldOrTagFailure-8 448 208 -53.57% BenchmarkStructLevelValidationSuccess-8 160 32 -80.00% BenchmarkStructLevelValidationFailure-8 160 288 +80.00% BenchmarkStructSimpleCustomTypeSuccess-8 36 32 -11.11% BenchmarkStructSimpleCustomTypeFailure-8 640 392 -38.75% BenchmarkStructPartialSuccess-8 272 256 -5.88% BenchmarkStructPartialFailure-8 730 464 -36.44% BenchmarkStructExceptSuccess-8 250 480 +92.00% BenchmarkStructExceptFailure-8 272 448 +64.71% BenchmarkStructSimpleCrossFieldSuccess-8 80 72 -10.00% BenchmarkStructSimpleCrossFieldFailure-8 536 288 -46.27% BenchmarkStructSimpleCrossStructCrossFieldSuccess-8 112 80 -28.57% BenchmarkStructSimpleCrossStructCrossFieldFailure-8 576 304 -47.22% BenchmarkStructSimpleSuccess-8 4 0 -100.00% BenchmarkStructSimpleFailure-8 640 392 -38.75% BenchmarkStructSimpleSuccessParallel-8 4 0 -100.00% BenchmarkStructSimpleFailureParallel-8 640 392 -38.75% BenchmarkStructComplexSuccess-8 244 128 -47.54% BenchmarkStructComplexFailure-8 3609 2833 -21.50% BenchmarkStructComplexSuccessParallel-8 244 128 -47.54% BenchmarkStructComplexFailureParallel-8 3609 2833 -21.50% ```
8 years ago
package main
import (
"fmt"
"gopkg.in/go-playground/validator.v9"
)
// User contains user information
type User struct {
FirstName string `validate:"required"`
LastName string `validate:"required"`
Age uint8 `validate:"gte=0,lte=130"`
Email string `validate:"required,email"`
FavouriteColor string `validate:"iscolor"` // alias for 'hexcolor|rgb|rgba|hsl|hsla'
Addresses []*Address `validate:"required,dive,required"` // a person can have a home and cottage...
}
// Address houses a users address information
type Address struct {
Street string `validate:"required"`
City string `validate:"required"`
Planet string `validate:"required"`
Phone string `validate:"required"`
}
// use a single instance of Validate, it caches struct info
var validate *validator.Validate
func main() {
validate = validator.New()
validateStruct()
validateVariable()
}
func validateStruct() {
address := &Address{
Street: "Eavesdown Docks",
Planet: "Persphone",
Phone: "none",
}
user := &User{
FirstName: "Badger",
LastName: "Smith",
Age: 135,
Email: "Badger.Smith@gmail.com",
FavouriteColor: "#000-",
Addresses: []*Address{address},
}
// returns nil or ValidationErrors ( map[string]*FieldError )
err := validate.Struct(user)
if err != nil {
// this check is only needed when your code could produce
// an invalid value for validation such as interface with nil
// value most including myself do not usually have code like this.
if _, ok := err.(*validator.InvalidValidationError); ok {
fmt.Println(err)
return
}
for _, err := range err.(validator.ValidationErrors) {
fmt.Println(err.Namespace())
fmt.Println(err.Field())
fmt.Println(err.StructNamespace()) // can differ when a custom TagNameFunc is registered or
fmt.Println(err.StructField()) // by passing alt name to ReportError like below
fmt.Println(err.Tag())
fmt.Println(err.ActualTag())
fmt.Println(err.Kind())
fmt.Println(err.Type())
fmt.Println(err.Value())
fmt.Println(err.Param())
fmt.Println()
}
// from here you can create your own error messages in whatever language you wish
return
}
// save user to database
}
func validateVariable() {
myEmail := "joeybloggs.gmail.com"
errs := validate.Var(myEmail, "required,email")
if errs != nil {
fmt.Println(errs) // output: Key: "" Error:Field validation for "" failed on the "email" tag
return
}
// email ok, move on
}