Feature Request : Support for validationMiddleware on query params

[malavancs]

Currently validation middleware only works on req.body. It will be good if have an option to specify what needs to validated.

[ljlm0402]

@malavancs

If it is an option you specify, do you mean req.query, req.params?

[malavancs]

Currently in plainToClass(type,req.body) is default. It should allow us to specify whether it is a body or query or params in function parameters.

Its a nice have option I guess.

function validationMiddleware(type: any, skipMissingProperties = false): RequestHandler {
  return (req, res, next) => {
    validate(plainToClass(type, req.body), { skipMissingProperties })
    .then((errors: ValidationError[]) => {
      if (errors.length > 0) {
        const message = errors.map((error: ValidationError) => Object.values(error.constraints)).join(', ');
        next(new HttpException(400, message));
      } else {
        next();
      }snippets
    });
  };
}

PS: I will make a pull request for this soon .

[ljlm0402]

@malavancs

Thank you Bro.