Comments (4)
@Transform(x => +x)
add this on your property, internally it's uses class-transformer before doing validation so this would make it to a number be it validates.
from nestjs-extensions.
Yes should work just fine.
from nestjs-extensions.
For example:
// playground.dto.ts
import { Transform } from 'class-transformer';
import {
IsInt,
IsNotEmpty,
IsOptional,
IsString,
Max,
Min
} from 'class-validator';
import { Dto } from 'nestjs-extensions';
@Dto()
export class PostDto {
@IsNotEmpty()
@IsString()
title!: string;
@IsString()
@IsOptional()
description?: string;
@IsNotEmpty()
@Transform(x => +x)
count!: number;
}
@Dto()
export class QueryDto {
@Min(1)
@Max(20)
@Transform(x => +x)
limit!: number;
@Min(0)
@Transform(x => +x)
offset!: number;
}
@Dto()
export class ParamsDto {
@IsInt()
@Transform(x => +x)
id!: number;
@IsInt()
@Transform(x => +x)
postId!: number;
}
// playground.controller.ts
import { Body, Controller, Get, Param, Post, Query } from '@nestjs/common';
import { ParamsDto, PostDto, QueryDto } from './playground.dto';
@Controller('playground')
export class PlayGroundController {
@Post()
async post(@Body() { title, description, count }: PostDto) {
return { title, description, count };
}
@Get()
async get(@Query() { limit, offset }: QueryDto) {
return {
limit: { value: limit, type: typeof limit },
offset: { value: offset, type: typeof offset }
};
}
@Get(':id/posts/:postId')
async getOne(@Param() { id, postId }: ParamsDto) {
return {
id: { value: id, type: typeof id },
postId: { value: postId, type: typeof postId }
};
}
}
from nestjs-extensions.
It works thanks! And it appears it's even faster than what I was doing without it, nice!
I actually want the whole dto to pass to a service, so I'm using it like this:
@Get('/:x/:y/:z')
async findByTileDto(@Param() createTileDto: CreateTileDto, @Res() res:Response) {...}
However, even though my entity looks like this:
@Dto()
export class CreateTileDto {
@IsNotEmpty()
@IsInt()
x: number;
@IsNotEmpty()
@IsInt()
y: number;
@IsNotEmpty()
@IsInt()
z: number;
}
I get back a 422, with a message that my values aren't numbers. And of course, it's right, they're strings, since they're coming from params. Is there a way to use the ParseIntPipe here, or am I missing something else?
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