Error messages not present in the generated JSON

[yab94]

Hi,
It would be great to include the error message inside the generated JSON.
Example:
@isemail({}, {message: "Please fill a correct email"})

Actualy the generated JSON doesn't contains the message.

[epiphone]

Which JSON Schema property do you propose using here?

[yab94]

Hi Epiphone,

I would like your code to fill this JSON property :

ValidationSchema.properties.propertyName.message

This can be done by adding this block of code at line 128 of src/index.ts.

    let items = _.isFunction(converter) ? converter(meta, options) : converter

    if(meta.message) {
      items = {
        ...items,
        message: meta.message,
      } 
    }

My goal is that the backend can generates a rules file based on decorators and then the frontend can receives these rules to validate with the same rules that the backend without any differences between front and back rules. And all these rules will be coded with decorators in backend entities (typeorm) only once.
I just want to share the validation rules between front and back, and i wan't to include the error message in the transfered schema.
This transfert will be done just by a simple REST API like "GET /api/v1/books/rules".

[epiphone]

There's no message property in JSON Schema though, is there? I think supporting non-schema properties is outside the scope of this library. You might want to try using one of the provided extension points or going with a fork.

[yab94]

Hi,
I am speaking about this message :
https://github.com/typestack/class-validator#validation-messages