51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
package main
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import (
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"net/http"
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"reflect"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/gin-gonic/gin/binding"
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"gopkg.in/go-playground/validator.v8"
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)
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// Booking contains binded and validated data.
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type Booking struct {
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CheckIn time.Time `form:"check_in" binding:"required,bookabledate" time_format:"2006-01-02"`
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CheckOut time.Time `form:"check_out" binding:"required,gtfield=CheckIn" time_format:"2006-01-02"`
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}
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func bookableDate(
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v *validator.Validate, topStruct reflect.Value, currentStructOrField reflect.Value,
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field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string,
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) bool {
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if date, ok := field.Interface().(time.Time); ok {
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today := time.Now()
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if today.Year() > date.Year() || today.YearDay() > date.YearDay() {
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return false
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}
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}
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return true
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}
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func main() {
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route := gin.Default()
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if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
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v.RegisterValidation("bookabledate", bookableDate)
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}
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route.GET("/bookable", getBookable)
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route.Run(":8085")
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}
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func getBookable(c *gin.Context) {
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var b Booking
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if err := c.ShouldBindWith(&b, binding.Query); err == nil {
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c.JSON(http.StatusOK, gin.H{"message": "Booking dates are valid!"})
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} else {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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}
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}
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