Express custom GET/POST parameter binding nestjs / routing-controllers - express

Question

I have a Controller (nestjs / routing-controllers) and I'm passing a GET request the following way: /collect?t=My-name
t is actually a full name which I can't change.
Bellow im injecting #QueryParams() data: CollectData, Im looking for a way (like java strong and .net) to tell the controller that fullName is actually t.
Something like
export interface CollectData{
#PropertyName('t')
fullName: string
}
I'm expecting fullName to represent the t variable.
#JsonController()
export class CollectController {
#Get('/collect')
collect(#QueryParams() data: CollectData){
return data.fullName;
}
}

Answer 1

You could use some sort of solution using the class-transformer library and the ValidationPipe given by Nest (it also does transformations!) and have your CollectionData class (use a class so that the data can be serialized after transpiling, interfaces go away in JavaScript) look like this:
// CollectData.ts
export class CollectData{
#Expose({ name: 'fullName' })
t: string
}
//Collect.controller.ts
#Controller() // Changed from JSONController to Controller
export class CollectController {
#Get('/collect')
collect(#Query(new ValidationPipe({ tranform: true }) data: CollectData){ //Changed from QueryParams to Query
return data.fullName;
}
}
OR in your main.ts add the app.useGlobalPipes(new ValidationPipe({ tranform: true }) to set the validation pipe to run against all your incoming requests