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87 lines
2.2 KiB
87 lines
2.2 KiB
package main
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import (
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"fmt"
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"github.com/go-playground/validator/v10"
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)
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var validate *validator.Validate
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func main() {
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validate = validator.New()
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validateMap()
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validateNestedMap()
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}
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func validateMap() {
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user := map[string]interface{}{"name": "Arshiya Kiani", "email": "zytel3301@gmail.com"}
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// Every rule will be applied to the item of the data that the offset of rule is pointing to.
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// So if you have a field "email": "omitempty,required,email", the validator will apply these
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// rules to offset of email in user data
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rules := map[string]interface{}{"name": "required,min=8,max=32", "email": "omitempty,required,email"}
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// ValidateMap will return map[string]error.
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// The offset of every item in errs is the name of invalid field and the value
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// is the message of error. If there was no error, ValidateMap method will
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// return an EMPTY map of errors, not nil. If you want to check that
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// if there was an error or not, you must check the length of the return value
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errs := validate.ValidateMap(user, rules)
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if len(errs) > 0 {
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fmt.Println(errs)
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// The user is invalid
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}
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// The user is valid
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}
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func validateNestedMap() {
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data := map[string]interface{}{
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"name": "Arshiya Kiani",
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"email": "zytel3301@gmail.com",
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"details": map[string]interface{}{
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"family_members": map[string]interface{}{
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"father_name": "Micheal",
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"mother_name": "Hannah",
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},
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"salary": "1000",
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"phones": []map[string]interface{}{
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{
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"number": "11-111-1111",
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"remark": "home",
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},
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{
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"number": "22-222-2222",
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"remark": "work",
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},
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},
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},
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}
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// Rules must be set as the structure as the data itself. If you want to dive into the
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// map, just declare its rules as a map
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rules := map[string]interface{}{
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"name": "min=4,max=32",
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"email": "required,email",
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"details": map[string]interface{}{
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"family_members": map[string]interface{}{
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"father_name": "required,min=4,max=32",
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"mother_name": "required,min=4,max=32",
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},
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"salary": "number",
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"phones": map[string]interface{}{
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"number": "required,min=4,max=32",
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"remark": "required,min=1,max=32",
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},
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},
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}
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if len(validate.ValidateMap(data, rules)) == 0 {
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// Data is valid
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}
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// Data is invalid
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}
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