Order of decorator execution

[Caperious]

I was trying to create a validation for a property, which has to be an array of lowercase strings. To ensure that the strings are lowercased, we wrote a transformer function for transforming all strings to lower case.

The problem is, that the transformer runs before the @IsArray validation. Is it possible to somehow set the order of the execution of the decorators? Changing the order doesn't help.

  @IsArray()
  @Transform((prop) => prop?.map((el) => el.toString().toLowerCase()))
  arrayProp: string[]

[bombillazo]

Any updates on this question?

[er230059]

I have the same problem (https://github.com/typestack/class-transformer/issues/741)

Anyone can explain this question?

@NoNameProvided

[ryanpram]

I also have same confusion