Update vendor (#1414)

1 files changed, 1230 insertions, 0 deletions

diff --git a/vendor/github.com/labstack/echo/v4/binder.go b/vendor/github.com/labstack/echo/v4/binder.go
new file mode 100644
index 00000000..0900ce8d
--- /dev/null
+++ b/vendor/github.com/labstack/echo/v4/binder.go
@@ -0,0 +1,1230 @@
+package echo
+
+import (
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+)
+
+/**
+	Following functions provide handful of methods for binding to Go native types from request query or path parameters.
+    * QueryParamsBinder(c) - binds query parameters (source URL)
+    * PathParamsBinder(c) - binds path parameters (source URL)
+    * FormFieldBinder(c) - binds form fields (source URL + body)
+
+	Example:
+  ```go
+  var length int64
+  err := echo.QueryParamsBinder(c).Int64("length", &length).BindError()
+  ```
+
+	For every supported type there are following methods:
+		* <Type>("param", &destination) - if parameter value exists then binds it to given destination of that type i.e Int64(...).
+		* Must<Type>("param", &destination) - parameter value is required to exist, binds it to given destination of that type i.e MustInt64(...).
+		* <Type>s("param", &destination) - (for slices) if parameter values exists then binds it to given destination of that type i.e Int64s(...).
+		* Must<Type>s("param", &destination) - (for slices) parameter value is required to exist, binds it to given destination of that type i.e MustInt64s(...).
+
+  for some slice types `BindWithDelimiter("param", &dest, ",")` supports splitting parameter values before type conversion is done
+  i.e. URL `/api/search?id=1,2,3&id=1` can be bind to `[]int64{1,2,3,1}`
+
+	`FailFast` flags binder to stop binding after first bind error during binder call chain. Enabled by default.
+  `BindError()` returns first bind error from binder and resets errors in binder. Useful along with `FailFast()` method
+		to do binding and returns on first problem
+  `BindErrors()` returns all bind errors from binder and resets errors in binder.
+
+	Types that are supported:
+		* bool
+		* float32
+		* float64
+		* int
+		* int8
+		* int16
+		* int32
+		* int64
+		* uint
+		* uint8/byte (does not support `bytes()`. Use BindUnmarshaler/CustomFunc to convert value from base64 etc to []byte{})
+		* uint16
+		* uint32
+		* uint64
+		* string
+		* time
+		* duration
+		* BindUnmarshaler() interface
+		* UnixTime() - converts unix time (integer) to time.Time
+		* UnixTimeNano() - converts unix time with nano second precision (integer) to time.Time
+		* CustomFunc() - callback function for your custom conversion logic. Signature `func(values []string) []error`
+*/
+
+// BindingError represents an error that occurred while binding request data.
+type BindingError struct {
+	// Field is the field name where value binding failed
+	Field string `json:"field"`
+	// Values of parameter that failed to bind.
+	Values []string `json:"-"`
+	*HTTPError
+}
+
+// NewBindingError creates new instance of binding error
+func NewBindingError(sourceParam string, values []string, message interface{}, internalError error) error {
+	return &BindingError{
+		Field:  sourceParam,
+		Values: values,
+		HTTPError: &HTTPError{
+			Code:     http.StatusBadRequest,
+			Message:  message,
+			Internal: internalError,
+		},
+	}
+}
+
+// Error returns error message
+func (be *BindingError) Error() string {
+	return fmt.Sprintf("%s, field=%s", be.HTTPError.Error(), be.Field)
+}
+
+// ValueBinder provides utility methods for binding query or path parameter to various Go built-in types
+type ValueBinder struct {
+	// failFast is flag for binding methods to return without attempting to bind when previous binding already failed
+	failFast bool
+	errors   []error
+
+	// ValueFunc is used to get single parameter (first) value from request
+	ValueFunc func(sourceParam string) string
+	// ValuesFunc is used to get all values for parameter from request. i.e. `/api/search?ids=1&ids=2`
+	ValuesFunc func(sourceParam string) []string
+	// ErrorFunc is used to create errors. Allows you to use your own error type, that for example marshals to your specific json response
+	ErrorFunc func(sourceParam string, values []string, message interface{}, internalError error) error
+}
+
+// QueryParamsBinder creates query parameter value binder
+func QueryParamsBinder(c Context) *ValueBinder {
+	return &ValueBinder{
+		failFast:  true,
+		ValueFunc: c.QueryParam,
+		ValuesFunc: func(sourceParam string) []string {
+			values, ok := c.QueryParams()[sourceParam]
+			if !ok {
+				return nil
+			}
+			return values
+		},
+		ErrorFunc: NewBindingError,
+	}
+}
+
+// PathParamsBinder creates path parameter value binder
+func PathParamsBinder(c Context) *ValueBinder {
+	return &ValueBinder{
+		failFast:  true,
+		ValueFunc: c.Param,
+		ValuesFunc: func(sourceParam string) []string {
+			// path parameter should not have multiple values so getting values does not make sense but lets not error out here
+			value := c.Param(sourceParam)
+			if value == "" {
+				return nil
+			}
+			return []string{value}
+		},
+		ErrorFunc: NewBindingError,
+	}
+}
+
+// FormFieldBinder creates form field value binder
+// For all requests, FormFieldBinder parses the raw query from the URL and uses query params as form fields
+//
+// For POST, PUT, and PATCH requests, it also reads the request body, parses it
+// as a form and uses query params as form fields. Request body parameters take precedence over URL query
+// string values in r.Form.
+//
+// NB: when binding forms take note that this implementation uses standard library form parsing
+// which parses form data from BOTH URL and BODY if content type is not MIMEMultipartForm
+// See https://golang.org/pkg/net/http/#Request.ParseForm
+func FormFieldBinder(c Context) *ValueBinder {
+	vb := &ValueBinder{
+		failFast: true,
+		ValueFunc: func(sourceParam string) string {
+			return c.Request().FormValue(sourceParam)
+		},
+		ErrorFunc: NewBindingError,
+	}
+	vb.ValuesFunc = func(sourceParam string) []string {
+		if c.Request().Form == nil {
+			// this is same as `Request().FormValue()` does internally
+			_ = c.Request().ParseMultipartForm(32 << 20)
+		}
+		values, ok := c.Request().Form[sourceParam]
+		if !ok {
+			return nil
+		}
+		return values
+	}
+
+	return vb
+}
+
+// FailFast set internal flag to indicate if binding methods will return early (without binding) when previous bind failed
+// NB: call this method before any other binding methods as it modifies binding methods behaviour
+func (b *ValueBinder) FailFast(value bool) *ValueBinder {
+	b.failFast = value
+	return b
+}
+
+func (b *ValueBinder) setError(err error) {
+	if b.errors == nil {
+		b.errors = []error{err}
+		return
+	}
+	b.errors = append(b.errors, err)
+}
+
+// BindError returns first seen bind error and resets/empties binder errors for further calls
+func (b *ValueBinder) BindError() error {
+	if b.errors == nil {
+		return nil
+	}
+	err := b.errors[0]
+	b.errors = nil // reset errors so next chain will start from zero
+	return err
+}
+
+// BindErrors returns all bind errors and resets/empties binder errors for further calls
+func (b *ValueBinder) BindErrors() []error {
+	if b.errors == nil {
+		return nil
+	}
+	errors := b.errors
+	b.errors = nil // reset errors so next chain will start from zero
+	return errors
+}
+
+// CustomFunc binds parameter values with Func. Func is called only when parameter values exist.
+func (b *ValueBinder) CustomFunc(sourceParam string, customFunc func(values []string) []error) *ValueBinder {
+	return b.customFunc(sourceParam, customFunc, false)
+}
+
+// MustCustomFunc requires parameter values to exist to be bind with Func. Returns error when value does not exist.
+func (b *ValueBinder) MustCustomFunc(sourceParam string, customFunc func(values []string) []error) *ValueBinder {
+	return b.customFunc(sourceParam, customFunc, true)
+}
+
+func (b *ValueBinder) customFunc(sourceParam string, customFunc func(values []string) []error, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+	if errs := customFunc(values); errs != nil {
+		b.errors = append(b.errors, errs...)
+	}
+	return b
+}
+
+// String binds parameter to string variable
+func (b *ValueBinder) String(sourceParam string, dest *string) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		return b
+	}
+	*dest = value
+	return b
+}
+
+// MustString requires parameter value to exist to be bind to string variable. Returns error when value does not exist
+func (b *ValueBinder) MustString(sourceParam string, dest *string) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, "required field value is empty", nil))
+		return b
+	}
+	*dest = value
+	return b
+}
+
+// Strings binds parameter values to slice of string
+func (b *ValueBinder) Strings(sourceParam string, dest *[]string) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValuesFunc(sourceParam)
+	if value == nil {
+		return b
+	}
+	*dest = value
+	return b
+}
+
+// MustStrings requires parameter values to exist to be bind to slice of string variables. Returns error when value does not exist
+func (b *ValueBinder) MustStrings(sourceParam string, dest *[]string) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValuesFunc(sourceParam)
+	if value == nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		return b
+	}
+	*dest = value
+	return b
+}
+
+// BindUnmarshaler binds parameter to destination implementing BindUnmarshaler interface
+func (b *ValueBinder) BindUnmarshaler(sourceParam string, dest BindUnmarshaler) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	tmp := b.ValueFunc(sourceParam)
+	if tmp == "" {
+		return b
+	}
+
+	if err := dest.UnmarshalParam(tmp); err != nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{tmp}, "failed to bind field value to BindUnmarshaler interface", err))
+	}
+	return b
+}
+
+// MustBindUnmarshaler requires parameter value to exist to be bind to destination implementing BindUnmarshaler interface.
+// Returns error when value does not exist
+func (b *ValueBinder) MustBindUnmarshaler(sourceParam string, dest BindUnmarshaler) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, "required field value is empty", nil))
+		return b
+	}
+
+	if err := dest.UnmarshalParam(value); err != nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, "failed to bind field value to BindUnmarshaler interface", err))
+	}
+	return b
+}
+
+// BindWithDelimiter binds parameter to destination by suitable conversion function.
+// Delimiter is used before conversion to split parameter value to separate values
+func (b *ValueBinder) BindWithDelimiter(sourceParam string, dest interface{}, delimiter string) *ValueBinder {
+	return b.bindWithDelimiter(sourceParam, dest, delimiter, false)
+}
+
+// MustBindWithDelimiter requires parameter value to exist to be bind destination by suitable conversion function.
+// Delimiter is used before conversion to split parameter value to separate values
+func (b *ValueBinder) MustBindWithDelimiter(sourceParam string, dest interface{}, delimiter string) *ValueBinder {
+	return b.bindWithDelimiter(sourceParam, dest, delimiter, true)
+}
+
+func (b *ValueBinder) bindWithDelimiter(sourceParam string, dest interface{}, delimiter string, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+	tmpValues := make([]string, 0, len(values))
+	for _, v := range values {
+		tmpValues = append(tmpValues, strings.Split(v, delimiter)...)
+	}
+
+	switch d := dest.(type) {
+	case *[]string:
+		*d = tmpValues
+		return b
+	case *[]bool:
+		return b.bools(sourceParam, tmpValues, d)
+	case *[]int64, *[]int32, *[]int16, *[]int8, *[]int:
+		return b.ints(sourceParam, tmpValues, d)
+	case *[]uint64, *[]uint32, *[]uint16, *[]uint8, *[]uint: // *[]byte is same as *[]uint8
+		return b.uints(sourceParam, tmpValues, d)
+	case *[]float64, *[]float32:
+		return b.floats(sourceParam, tmpValues, d)
+	case *[]time.Duration:
+		return b.durations(sourceParam, tmpValues, d)
+	default:
+		// support only cases when destination is slice
+		// does not support time.Time as it needs argument (layout) for parsing or BindUnmarshaler
+		b.setError(b.ErrorFunc(sourceParam, []string{}, "unsupported bind type", nil))
+		return b
+	}
+}
+
+// Int64 binds parameter to int64 variable
+func (b *ValueBinder) Int64(sourceParam string, dest *int64) *ValueBinder {
+	return b.intValue(sourceParam, dest, 64, false)
+}
+
+// MustInt64 requires parameter value to exist to be bind to int64 variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt64(sourceParam string, dest *int64) *ValueBinder {
+	return b.intValue(sourceParam, dest, 64, true)
+}
+
+// Int32 binds parameter to int32 variable
+func (b *ValueBinder) Int32(sourceParam string, dest *int32) *ValueBinder {
+	return b.intValue(sourceParam, dest, 32, false)
+}
+
+// MustInt32 requires parameter value to exist to be bind to int32 variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt32(sourceParam string, dest *int32) *ValueBinder {
+	return b.intValue(sourceParam, dest, 32, true)
+}
+
+// Int16 binds parameter to int16 variable
+func (b *ValueBinder) Int16(sourceParam string, dest *int16) *ValueBinder {
+	return b.intValue(sourceParam, dest, 16, false)
+}
+
+// MustInt16 requires parameter value to exist to be bind to int16 variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt16(sourceParam string, dest *int16) *ValueBinder {
+	return b.intValue(sourceParam, dest, 16, true)
+}
+
+// Int8 binds parameter to int8 variable
+func (b *ValueBinder) Int8(sourceParam string, dest *int8) *ValueBinder {
+	return b.intValue(sourceParam, dest, 8, false)
+}
+
+// MustInt8 requires parameter value to exist to be bind to int8 variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt8(sourceParam string, dest *int8) *ValueBinder {
+	return b.intValue(sourceParam, dest, 8, true)
+}
+
+// Int binds parameter to int variable
+func (b *ValueBinder) Int(sourceParam string, dest *int) *ValueBinder {
+	return b.intValue(sourceParam, dest, 0, false)
+}
+
+// MustInt requires parameter value to exist to be bind to int variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt(sourceParam string, dest *int) *ValueBinder {
+	return b.intValue(sourceParam, dest, 0, true)
+}
+
+func (b *ValueBinder) intValue(sourceParam string, dest interface{}, bitSize int, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+
+	return b.int(sourceParam, value, dest, bitSize)
+}
+
+func (b *ValueBinder) int(sourceParam string, value string, dest interface{}, bitSize int) *ValueBinder {
+	n, err := strconv.ParseInt(value, 10, bitSize)
+	if err != nil {
+		if bitSize == 0 {
+			b.setError(b.ErrorFunc(sourceParam, []string{value}, "failed to bind field value to int", err))
+		} else {
+			b.setError(b.ErrorFunc(sourceParam, []string{value}, fmt.Sprintf("failed to bind field value to int%v", bitSize), err))
+		}
+		return b
+	}
+
+	switch d := dest.(type) {
+	case *int64:
+		*d = n
+	case *int32:
+		*d = int32(n)
+	case *int16:
+		*d = int16(n)
+	case *int8:
+		*d = int8(n)
+	case *int:
+		*d = int(n)
+	}
+	return b
+}
+
+func (b *ValueBinder) intsValue(sourceParam string, dest interface{}, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, values, "required field value is empty", nil))
+		}
+		return b
+	}
+	return b.ints(sourceParam, values, dest)
+}
+
+func (b *ValueBinder) ints(sourceParam string, values []string, dest interface{}) *ValueBinder {
+	switch d := dest.(type) {
+	case *[]int64:
+		tmp := make([]int64, len(values))
+		for i, v := range values {
+			b.int(sourceParam, v, &tmp[i], 64)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]int32:
+		tmp := make([]int32, len(values))
+		for i, v := range values {
+			b.int(sourceParam, v, &tmp[i], 32)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]int16:
+		tmp := make([]int16, len(values))
+		for i, v := range values {
+			b.int(sourceParam, v, &tmp[i], 16)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]int8:
+		tmp := make([]int8, len(values))
+		for i, v := range values {
+			b.int(sourceParam, v, &tmp[i], 8)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]int:
+		tmp := make([]int, len(values))
+		for i, v := range values {
+			b.int(sourceParam, v, &tmp[i], 0)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	}
+	return b
+}
+
+// Int64s binds parameter to slice of int64
+func (b *ValueBinder) Int64s(sourceParam string, dest *[]int64) *ValueBinder {
+	return b.intsValue(sourceParam, dest, false)
+}
+
+// MustInt64s requires parameter value to exist to be bind to int64 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt64s(sourceParam string, dest *[]int64) *ValueBinder {
+	return b.intsValue(sourceParam, dest, true)
+}
+
+// Int32s binds parameter to slice of int32
+func (b *ValueBinder) Int32s(sourceParam string, dest *[]int32) *ValueBinder {
+	return b.intsValue(sourceParam, dest, false)
+}
+
+// MustInt32s requires parameter value to exist to be bind to int32 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt32s(sourceParam string, dest *[]int32) *ValueBinder {
+	return b.intsValue(sourceParam, dest, true)
+}
+
+// Int16s binds parameter to slice of int16
+func (b *ValueBinder) Int16s(sourceParam string, dest *[]int16) *ValueBinder {
+	return b.intsValue(sourceParam, dest, false)
+}
+
+// MustInt16s requires parameter value to exist to be bind to int16 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt16s(sourceParam string, dest *[]int16) *ValueBinder {
+	return b.intsValue(sourceParam, dest, true)
+}
+
+// Int8s binds parameter to slice of int8
+func (b *ValueBinder) Int8s(sourceParam string, dest *[]int8) *ValueBinder {
+	return b.intsValue(sourceParam, dest, false)
+}
+
+// MustInt8s requires parameter value to exist to be bind to int8 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustInt8s(sourceParam string, dest *[]int8) *ValueBinder {
+	return b.intsValue(sourceParam, dest, true)
+}
+
+// Ints binds parameter to slice of int
+func (b *ValueBinder) Ints(sourceParam string, dest *[]int) *ValueBinder {
+	return b.intsValue(sourceParam, dest, false)
+}
+
+// MustInts requires parameter value to exist to be bind to int slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustInts(sourceParam string, dest *[]int) *ValueBinder {
+	return b.intsValue(sourceParam, dest, true)
+}
+
+// Uint64 binds parameter to uint64 variable
+func (b *ValueBinder) Uint64(sourceParam string, dest *uint64) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 64, false)
+}
+
+// MustUint64 requires parameter value to exist to be bind to uint64 variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint64(sourceParam string, dest *uint64) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 64, true)
+}
+
+// Uint32 binds parameter to uint32 variable
+func (b *ValueBinder) Uint32(sourceParam string, dest *uint32) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 32, false)
+}
+
+// MustUint32 requires parameter value to exist to be bind to uint32 variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint32(sourceParam string, dest *uint32) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 32, true)
+}
+
+// Uint16 binds parameter to uint16 variable
+func (b *ValueBinder) Uint16(sourceParam string, dest *uint16) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 16, false)
+}
+
+// MustUint16 requires parameter value to exist to be bind to uint16 variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint16(sourceParam string, dest *uint16) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 16, true)
+}
+
+// Uint8 binds parameter to uint8 variable
+func (b *ValueBinder) Uint8(sourceParam string, dest *uint8) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 8, false)
+}
+
+// MustUint8 requires parameter value to exist to be bind to uint8 variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint8(sourceParam string, dest *uint8) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 8, true)
+}
+
+// Byte binds parameter to byte variable
+func (b *ValueBinder) Byte(sourceParam string, dest *byte) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 8, false)
+}
+
+// MustByte requires parameter value to exist to be bind to byte variable. Returns error when value does not exist
+func (b *ValueBinder) MustByte(sourceParam string, dest *byte) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 8, true)
+}
+
+// Uint binds parameter to uint variable
+func (b *ValueBinder) Uint(sourceParam string, dest *uint) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 0, false)
+}
+
+// MustUint requires parameter value to exist to be bind to uint variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint(sourceParam string, dest *uint) *ValueBinder {
+	return b.uintValue(sourceParam, dest, 0, true)
+}
+
+func (b *ValueBinder) uintValue(sourceParam string, dest interface{}, bitSize int, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+
+	return b.uint(sourceParam, value, dest, bitSize)
+}
+
+func (b *ValueBinder) uint(sourceParam string, value string, dest interface{}, bitSize int) *ValueBinder {
+	n, err := strconv.ParseUint(value, 10, bitSize)
+	if err != nil {
+		if bitSize == 0 {
+			b.setError(b.ErrorFunc(sourceParam, []string{value}, "failed to bind field value to uint", err))
+		} else {
+			b.setError(b.ErrorFunc(sourceParam, []string{value}, fmt.Sprintf("failed to bind field value to uint%v", bitSize), err))
+		}
+		return b
+	}
+
+	switch d := dest.(type) {
+	case *uint64:
+		*d = n
+	case *uint32:
+		*d = uint32(n)
+	case *uint16:
+		*d = uint16(n)
+	case *uint8: // byte is alias to uint8
+		*d = uint8(n)
+	case *uint:
+		*d = uint(n)
+	}
+	return b
+}
+
+func (b *ValueBinder) uintsValue(sourceParam string, dest interface{}, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, values, "required field value is empty", nil))
+		}
+		return b
+	}
+	return b.uints(sourceParam, values, dest)
+}
+
+func (b *ValueBinder) uints(sourceParam string, values []string, dest interface{}) *ValueBinder {
+	switch d := dest.(type) {
+	case *[]uint64:
+		tmp := make([]uint64, len(values))
+		for i, v := range values {
+			b.uint(sourceParam, v, &tmp[i], 64)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]uint32:
+		tmp := make([]uint32, len(values))
+		for i, v := range values {
+			b.uint(sourceParam, v, &tmp[i], 32)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]uint16:
+		tmp := make([]uint16, len(values))
+		for i, v := range values {
+			b.uint(sourceParam, v, &tmp[i], 16)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]uint8: // byte is alias to uint8
+		tmp := make([]uint8, len(values))
+		for i, v := range values {
+			b.uint(sourceParam, v, &tmp[i], 8)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]uint:
+		tmp := make([]uint, len(values))
+		for i, v := range values {
+			b.uint(sourceParam, v, &tmp[i], 0)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	}
+	return b
+}
+
+// Uint64s binds parameter to slice of uint64
+func (b *ValueBinder) Uint64s(sourceParam string, dest *[]uint64) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, false)
+}
+
+// MustUint64s requires parameter value to exist to be bind to uint64 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint64s(sourceParam string, dest *[]uint64) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, true)
+}
+
+// Uint32s binds parameter to slice of uint32
+func (b *ValueBinder) Uint32s(sourceParam string, dest *[]uint32) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, false)
+}
+
+// MustUint32s requires parameter value to exist to be bind to uint32 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint32s(sourceParam string, dest *[]uint32) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, true)
+}
+
+// Uint16s binds parameter to slice of uint16
+func (b *ValueBinder) Uint16s(sourceParam string, dest *[]uint16) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, false)
+}
+
+// MustUint16s requires parameter value to exist to be bind to uint16 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint16s(sourceParam string, dest *[]uint16) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, true)
+}
+
+// Uint8s binds parameter to slice of uint8
+func (b *ValueBinder) Uint8s(sourceParam string, dest *[]uint8) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, false)
+}
+
+// MustUint8s requires parameter value to exist to be bind to uint8 slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustUint8s(sourceParam string, dest *[]uint8) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, true)
+}
+
+// Uints binds parameter to slice of uint
+func (b *ValueBinder) Uints(sourceParam string, dest *[]uint) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, false)
+}
+
+// MustUints requires parameter value to exist to be bind to uint slice variable. Returns error when value does not exist
+func (b *ValueBinder) MustUints(sourceParam string, dest *[]uint) *ValueBinder {
+	return b.uintsValue(sourceParam, dest, true)
+}
+
+// Bool binds parameter to bool variable
+func (b *ValueBinder) Bool(sourceParam string, dest *bool) *ValueBinder {
+	return b.boolValue(sourceParam, dest, false)
+}
+
+// MustBool requires parameter value to exist to be bind to bool variable. Returns error when value does not exist
+func (b *ValueBinder) MustBool(sourceParam string, dest *bool) *ValueBinder {
+	return b.boolValue(sourceParam, dest, true)
+}
+
+func (b *ValueBinder) boolValue(sourceParam string, dest *bool, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+	return b.bool(sourceParam, value, dest)
+}
+
+func (b *ValueBinder) bool(sourceParam string, value string, dest *bool) *ValueBinder {
+	n, err := strconv.ParseBool(value)
+	if err != nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, "failed to bind field value to bool", err))
+		return b
+	}
+
+	*dest = n
+	return b
+}
+
+func (b *ValueBinder) boolsValue(sourceParam string, dest *[]bool, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+	return b.bools(sourceParam, values, dest)
+}
+
+func (b *ValueBinder) bools(sourceParam string, values []string, dest *[]bool) *ValueBinder {
+	tmp := make([]bool, len(values))
+	for i, v := range values {
+		b.bool(sourceParam, v, &tmp[i])
+		if b.failFast && b.errors != nil {
+			return b
+		}
+	}
+	if b.errors == nil {
+		*dest = tmp
+	}
+	return b
+}
+
+// Bools binds parameter values to slice of bool variables
+func (b *ValueBinder) Bools(sourceParam string, dest *[]bool) *ValueBinder {
+	return b.boolsValue(sourceParam, dest, false)
+}
+
+// MustBools requires parameter values to exist to be bind to slice of bool variables. Returns error when values does not exist
+func (b *ValueBinder) MustBools(sourceParam string, dest *[]bool) *ValueBinder {
+	return b.boolsValue(sourceParam, dest, true)
+}
+
+// Float64 binds parameter to float64 variable
+func (b *ValueBinder) Float64(sourceParam string, dest *float64) *ValueBinder {
+	return b.floatValue(sourceParam, dest, 64, false)
+}
+
+// MustFloat64 requires parameter value to exist to be bind to float64 variable. Returns error when value does not exist
+func (b *ValueBinder) MustFloat64(sourceParam string, dest *float64) *ValueBinder {
+	return b.floatValue(sourceParam, dest, 64, true)
+}
+
+// Float32 binds parameter to float32 variable
+func (b *ValueBinder) Float32(sourceParam string, dest *float32) *ValueBinder {
+	return b.floatValue(sourceParam, dest, 32, false)
+}
+
+// MustFloat32 requires parameter value to exist to be bind to float32 variable. Returns error when value does not exist
+func (b *ValueBinder) MustFloat32(sourceParam string, dest *float32) *ValueBinder {
+	return b.floatValue(sourceParam, dest, 32, true)
+}
+
+func (b *ValueBinder) floatValue(sourceParam string, dest interface{}, bitSize int, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+
+	return b.float(sourceParam, value, dest, bitSize)
+}
+
+func (b *ValueBinder) float(sourceParam string, value string, dest interface{}, bitSize int) *ValueBinder {
+	n, err := strconv.ParseFloat(value, bitSize)
+	if err != nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, fmt.Sprintf("failed to bind field value to float%v", bitSize), err))
+		return b
+	}
+
+	switch d := dest.(type) {
+	case *float64:
+		*d = n
+	case *float32:
+		*d = float32(n)
+	}
+	return b
+}
+
+func (b *ValueBinder) floatsValue(sourceParam string, dest interface{}, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+	return b.floats(sourceParam, values, dest)
+}
+
+func (b *ValueBinder) floats(sourceParam string, values []string, dest interface{}) *ValueBinder {
+	switch d := dest.(type) {
+	case *[]float64:
+		tmp := make([]float64, len(values))
+		for i, v := range values {
+			b.float(sourceParam, v, &tmp[i], 64)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	case *[]float32:
+		tmp := make([]float32, len(values))
+		for i, v := range values {
+			b.float(sourceParam, v, &tmp[i], 32)
+			if b.failFast && b.errors != nil {
+				return b
+			}
+		}
+		if b.errors == nil {
+			*d = tmp
+		}
+	}
+	return b
+}
+
+// Float64s binds parameter values to slice of float64 variables
+func (b *ValueBinder) Float64s(sourceParam string, dest *[]float64) *ValueBinder {
+	return b.floatsValue(sourceParam, dest, false)
+}
+
+// MustFloat64s requires parameter values to exist to be bind to slice of float64 variables. Returns error when values does not exist
+func (b *ValueBinder) MustFloat64s(sourceParam string, dest *[]float64) *ValueBinder {
+	return b.floatsValue(sourceParam, dest, true)
+}
+
+// Float32s binds parameter values to slice of float32 variables
+func (b *ValueBinder) Float32s(sourceParam string, dest *[]float32) *ValueBinder {
+	return b.floatsValue(sourceParam, dest, false)
+}
+
+// MustFloat32s requires parameter values to exist to be bind to slice of float32 variables. Returns error when values does not exist
+func (b *ValueBinder) MustFloat32s(sourceParam string, dest *[]float32) *ValueBinder {
+	return b.floatsValue(sourceParam, dest, true)
+}
+
+// Time binds parameter to time.Time variable
+func (b *ValueBinder) Time(sourceParam string, dest *time.Time, layout string) *ValueBinder {
+	return b.time(sourceParam, dest, layout, false)
+}
+
+// MustTime requires parameter value to exist to be bind to time.Time variable. Returns error when value does not exist
+func (b *ValueBinder) MustTime(sourceParam string, dest *time.Time, layout string) *ValueBinder {
+	return b.time(sourceParam, dest, layout, true)
+}
+
+func (b *ValueBinder) time(sourceParam string, dest *time.Time, layout string, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{value}, "required field value is empty", nil))
+		}
+		return b
+	}
+	t, err := time.Parse(layout, value)
+	if err != nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, "failed to bind field value to Time", err))
+		return b
+	}
+	*dest = t
+	return b
+}
+
+// Times binds parameter values to slice of time.Time variables
+func (b *ValueBinder) Times(sourceParam string, dest *[]time.Time, layout string) *ValueBinder {
+	return b.times(sourceParam, dest, layout, false)
+}
+
+// MustTimes requires parameter values to exist to be bind to slice of time.Time variables. Returns error when values does not exist
+func (b *ValueBinder) MustTimes(sourceParam string, dest *[]time.Time, layout string) *ValueBinder {
+	return b.times(sourceParam, dest, layout, true)
+}
+
+func (b *ValueBinder) times(sourceParam string, dest *[]time.Time, layout string, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+
+	tmp := make([]time.Time, len(values))
+	for i, v := range values {
+		t, err := time.Parse(layout, v)
+		if err != nil {
+			b.setError(b.ErrorFunc(sourceParam, []string{v}, "failed to bind field value to Time", err))
+			if b.failFast {
+				return b
+			}
+			continue
+		}
+		tmp[i] = t
+	}
+	if b.errors == nil {
+		*dest = tmp
+	}
+	return b
+}
+
+// Duration binds parameter to time.Duration variable
+func (b *ValueBinder) Duration(sourceParam string, dest *time.Duration) *ValueBinder {
+	return b.duration(sourceParam, dest, false)
+}
+
+// MustDuration requires parameter value to exist to be bind to time.Duration variable. Returns error when value does not exist
+func (b *ValueBinder) MustDuration(sourceParam string, dest *time.Duration) *ValueBinder {
+	return b.duration(sourceParam, dest, true)
+}
+
+func (b *ValueBinder) duration(sourceParam string, dest *time.Duration, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{value}, "required field value is empty", nil))
+		}
+		return b
+	}
+	t, err := time.ParseDuration(value)
+	if err != nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, "failed to bind field value to Duration", err))
+		return b
+	}
+	*dest = t
+	return b
+}
+
+// Durations binds parameter values to slice of time.Duration variables
+func (b *ValueBinder) Durations(sourceParam string, dest *[]time.Duration) *ValueBinder {
+	return b.durationsValue(sourceParam, dest, false)
+}
+
+// MustDurations requires parameter values to exist to be bind to slice of time.Duration variables. Returns error when values does not exist
+func (b *ValueBinder) MustDurations(sourceParam string, dest *[]time.Duration) *ValueBinder {
+	return b.durationsValue(sourceParam, dest, true)
+}
+
+func (b *ValueBinder) durationsValue(sourceParam string, dest *[]time.Duration, valueMustExist bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	values := b.ValuesFunc(sourceParam)
+	if len(values) == 0 {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{}, "required field value is empty", nil))
+		}
+		return b
+	}
+	return b.durations(sourceParam, values, dest)
+}
+
+func (b *ValueBinder) durations(sourceParam string, values []string, dest *[]time.Duration) *ValueBinder {
+	tmp := make([]time.Duration, len(values))
+	for i, v := range values {
+		t, err := time.ParseDuration(v)
+		if err != nil {
+			b.setError(b.ErrorFunc(sourceParam, []string{v}, "failed to bind field value to Duration", err))
+			if b.failFast {
+				return b
+			}
+			continue
+		}
+		tmp[i] = t
+	}
+	if b.errors == nil {
+		*dest = tmp
+	}
+	return b
+}
+
+// UnixTime binds parameter to time.Time variable (in local Time corresponding to the given Unix time).
+//
+// Example: 1609180603 bind to 2020-12-28T18:36:43.000000000+00:00
+//
+// Note:
+//  * time.Time{} (param is empty) and time.Unix(0,0) (param = "0") are not equal
+func (b *ValueBinder) UnixTime(sourceParam string, dest *time.Time) *ValueBinder {
+	return b.unixTime(sourceParam, dest, false, false)
+}
+
+// MustUnixTime requires parameter value to exist to be bind to time.Duration variable  (in local Time corresponding
+// to the given Unix time). Returns error when value does not exist.
+//
+// Example: 1609180603 bind to 2020-12-28T18:36:43.000000000+00:00
+//
+// Note:
+//  * time.Time{} (param is empty) and time.Unix(0,0) (param = "0") are not equal
+func (b *ValueBinder) MustUnixTime(sourceParam string, dest *time.Time) *ValueBinder {
+	return b.unixTime(sourceParam, dest, true, false)
+}
+
+// UnixTimeNano binds parameter to time.Time variable (in local Time corresponding to the given Unix time in nano second precision).
+//
+// Example: 1609180603123456789 binds to 2020-12-28T18:36:43.123456789+00:00
+// Example:          1000000000 binds to 1970-01-01T00:00:01.000000000+00:00
+// Example:           999999999 binds to 1970-01-01T00:00:00.999999999+00:00
+//
+// Note:
+//  * time.Time{} (param is empty) and time.Unix(0,0) (param = "0") are not equal
+//  * Javascript's Number type only has about 53 bits of precision (Number.MAX_SAFE_INTEGER = 9007199254740991). Compare it to 1609180603123456789 in example.
+func (b *ValueBinder) UnixTimeNano(sourceParam string, dest *time.Time) *ValueBinder {
+	return b.unixTime(sourceParam, dest, false, true)
+}
+
+// MustUnixTimeNano requires parameter value to exist to be bind to time.Duration variable  (in local Time corresponding
+// to the given Unix time value in nano second precision). Returns error when value does not exist.
+//
+// Example: 1609180603123456789 binds to 2020-12-28T18:36:43.123456789+00:00
+// Example:          1000000000 binds to 1970-01-01T00:00:01.000000000+00:00
+// Example:           999999999 binds to 1970-01-01T00:00:00.999999999+00:00
+//
+// Note:
+//  * time.Time{} (param is empty) and time.Unix(0,0) (param = "0") are not equal
+//  * Javascript's Number type only has about 53 bits of precision (Number.MAX_SAFE_INTEGER = 9007199254740991). Compare it to 1609180603123456789 in example.
+func (b *ValueBinder) MustUnixTimeNano(sourceParam string, dest *time.Time) *ValueBinder {
+	return b.unixTime(sourceParam, dest, true, true)
+}
+
+func (b *ValueBinder) unixTime(sourceParam string, dest *time.Time, valueMustExist bool, isNano bool) *ValueBinder {
+	if b.failFast && b.errors != nil {
+		return b
+	}
+
+	value := b.ValueFunc(sourceParam)
+	if value == "" {
+		if valueMustExist {
+			b.setError(b.ErrorFunc(sourceParam, []string{value}, "required field value is empty", nil))
+		}
+		return b
+	}
+
+	n, err := strconv.ParseInt(value, 10, 64)
+	if err != nil {
+		b.setError(b.ErrorFunc(sourceParam, []string{value}, "failed to bind field value to Time", err))
+		return b
+	}
+
+	if isNano {
+		*dest = time.Unix(0, n)
+	} else {
+		*dest = time.Unix(n, 0)
+	}
+	return b
+}