How to use parameter decorator when developing with js | NestJS | Page 1

solar flax Dec 30, 2023, 3:00 AM

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Now I use js for development, such as writing a file upload interface. Using function decorators will cause babel compilation to fail.

onyx vault Dec 30, 2023, 3:03 AM

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Like all other parameter decorators when using babel and raw JS, you need to use @Bind().
Typescript Example:

@Get(':id')
findOne(@Param() params: any): string {
  console.log(params.id);
  return `This action returns a #${params.id} cat`;
}

Equivalent JS example:

@Get(':id')
@Bind(Param())
findOne(params) {
  console.log(params.id);
  return `This action returns a #${params.id} cat`;
}

So, in your case, to bind @UploadedFile() and @Req() you need to do @Bind(UploadedFile(), Req())

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This example can swap between TS and JS for a better example

solar flax Dec 30, 2023, 3:05 AM

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onyx vault Like all other parameter decorators when using babel and raw JS, you need to use...

Thank you! Finally found a correct solution. I didn't find such usage in the official documents.

onyx vault Dec 30, 2023, 3:06 AM

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It's just extrapolation of what already exists. If @Body() can be used with @Bind(Body()) it makes sense that @UploadedFile() would be used in the same way

#How to use parameter decorator when developing with js