Consider the code snippet below:
@Post()
public async createPet(@Body() petDetails: PostPetDto): Promise<any> {
}
In this scenario, the type of @Bod() petDetails defaults to plain/any instead of the declared type of PostPetDto. What is the recommended approach in NestJS to ensure it adheres to the correct type?
The type includes methods (such as validate) that need to be executed.
import { ValidationPipe } from '@nestjs/common';
@Post()
@UsePipes(ValidationPipe)
public async createPet(@Body() petDetails: PostPetDto): Promise<any> {
}
Alternatively, you can configure it globally like this:
async function startApp() {
const app = await NestFactory.create(ApplicationModule);
app.useGlobalPipes(new ValidationPipe());
await app.listen(3000);
}
startApp();
For more information, visit https://docs.nestjs.com/pipes
The ValidationPipe will not automatically convert your payloads to the appropriate DTO classes. To activate this feature, follow these steps:
app.useGlobalPipes(
new ValidationPipe({
transform: true,
}),
);
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