Is there any way to combine the JSON validation [github.com/go-playground/validator/v10] and the JSON Query [sqlc] without having to create two different structs?
I have the following table definition
CREATE TABLE table1 (
columnName1 VARCHAR(200) NOT NULL PRIMARY KEY,
columnName2 VARCHAR(200) NOT NULL
)
And the following query
-- name: GetTable1:one
SELECT * FROM table1
WHERE columnName1 = $1 LIMIT 1;
Executing SQLC the following code is generated
...
//
// This struct is created automatically by sqlC
//
type CreateTable1Params struct {
Columnname1 string `json:"columnname1"`
Columnname2 string `json:"columnname2"`
}
func (q *Queries) CreateTable1(ctx context.Context, arg CreateTable1Params ) (Table1, error) {
...
}
Now, I need to validate the REST parameters for CreateTable1, let's say that columnName2 is required, so I have a controller package like the following
table1Controller.go
import (
...
validator "github.com/go-playground/validator/v10"
)
type Table1Controller struct {
Validate *validator.Validate
}
//
// This struct is created manually for validation
//
type InT1Param struct {
ColumnName1 string `validate:"required" form:"columnName1" json:"columnName1" db:"columnname1"`
ColumnName2 string `validate:"required" form:"columnName2" json:"columnName2" db:"columnname2" binding="required"`
}
func (c *Table1Controller) validateInput(t1 InT1Param) error {
err := service.Validate.Struct(t1)
if err != nil {
errStr := ""
for _, mapErr := range err.(validator.ValidationErrors) {
errStr = fmt.Sprintf("%s%s\n", errStr, mapErr.Translate(service.Translator))
}
return errors.New(errStr)
}
return nil
}
func (c *Table1Controller) Insert(ctx *gin.Context, dbQueries *dbModel.Queries, t1 InT1Param) error {
err := c.validateInput(t1)
if err != nil {
return err
inParam = dbModel.CreateTable1Param {
Columnname1: t1.columnName1,
Columnname2: t2.ColumnName2
}
outParam, err := dbQueries.CreateTable1(ctx, inParam)
if err != nil {
return err
return nil
}
