initial commit 2

server/router/routeutils/request.go

@@ -0,0 +1,130 @@
+package routeutils
+
+import (
+	"strconv"
+
+	"strings"
+
+	"bitbucket.org/nemt/nemt-portal-api/infra/errors"
+	"github.com/labstack/echo"
+)
+
+// GetAndValidateIntParam gets the integer param value and validates it, returning a validation error in case it's invalid
+func GetAndValidateIntParam(c echo.Context, paramName string, errorMessage string) (ID int64, err error) {
+	IDstr := c.Param(paramName)
+
+	if strings.TrimSpace(IDstr) == "" {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	ID, err = strconv.ParseInt(IDstr, 10, 64)
+	if ID == 0 {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	return
+}
+
+// GetAndValidateIntQueryParam gets the integer param value and validates it, returning a validation error in case it's invalid
+func GetAndValidateIntQueryParam(c echo.Context, paramName string, errorMessage string) (ID int64, err error) {
+	IDstr := c.QueryParam(paramName)
+
+	if strings.TrimSpace(IDstr) == "" {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	ID, err = strconv.ParseInt(IDstr, 10, 64)
+	if ID == 0 {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	return
+}
+
+// GetAndValidateFloatParam gets the integer param value and validates it, returning a validation error in case it's invalid
+func GetAndValidateFloatQueryParam(c echo.Context, paramName string, errorMessage string) (ID float64, err error) {
+	IDstr := c.QueryParam(paramName)
+
+	if strings.TrimSpace(IDstr) == "" {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	ID, err = strconv.ParseFloat(IDstr, 64)
+	if ID == 0 {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	return
+}
+
+// GetAndValidateStringQueryParam gets the integer param value and validates it, returning a validation error in case it's invalid
+func GetAndValidateStringQueryParam(c echo.Context, paramName string, errorMessage string) (ID string, err error) {
+	ID = c.QueryParam(paramName)
+
+	if strings.TrimSpace(ID) == "" {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	return
+}
+
+// GetAndValidateStringParam gets the string param value and validates it, returning a validation error in case it's invalid
+func GetAndValidateStringParam(c echo.Context, paramName string, errorMessage string) (ID string, err error) {
+	ID = c.Param(paramName)
+
+	if strings.TrimSpace(ID) == "" {
+		err = errors.NewValidationError(paramName, errorMessage)
+	}
+
+	return
+}
+
+// GetPagingParams gets the standard paging params from the URL, returning a validation error in case it's invalid
+func GetPagingParams(c echo.Context) (page int64, quantity int64) {
+	pg := c.QueryParam("page")
+	ipp := c.QueryParam("quantity")
+
+	page, _ = strconv.ParseInt(pg, 10, 64)
+	quantity, _ = strconv.ParseInt(ipp, 10, 64)
+
+	if page < 1 {
+		page = 1
+	}
+
+	if quantity < 1 || quantity > 1000 {
+		quantity = 10
+	}
+
+	return
+}
+
+// GetMultipleQueryParam returns a list of values for multiple query params
+func GetMultipleQueryParam(c echo.Context, paramName string) (retVal []string) {
+	retVal = make([]string, 0)
+
+	for k, param := range map[string][]string(c.QueryParams()) {
+		if k == paramName {
+			for _, value := range param {
+				retVal = append(retVal, value)
+			}
+			break
+		}
+	}
+
+	return retVal
+}
+
+// GetMultipleIntQueryParam returns a list of integer values from multiple query params
+func GetMultipleIntQueryParam(c echo.Context, paramName string) (retVal []int64, err error) {
+	retVal = make([]int64, 0)
+
+	for _, value := range GetMultipleQueryParam(c, paramName) {
+		intValue, err := strconv.ParseInt(value, 10, 64)
+		if err != nil {
+			return retVal, errors.Wrap(err)
+		}
+		retVal = append(retVal, intValue)
+	}
+
+	return retVal, nil
+}