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denniswebb/field_value_by_tag.go

Created October 19, 2017 15:48
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field_value_by_tag.go
package main
import "reflect"
func FieldValueByTag(s interface{}, tag, tagValue string) interface{} {
t := reflect.TypeOf(s)
for i := 0; i < t.NumField(); i++ {
if tagValue == t.Field(i).Tag.Get(tag) {
return reflect.ValueOf(s).FieldByName(t.Field(i).Name)
}
}
return nil
}
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Searches a struct for a field matching a tag/value pair and returns the value.

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