Questions tagged [class-transformer]
Discover a revolutionary TypeScript library that allows for effortless de/serialization between JSON and TypeScript classes through the use of powerful TypeScript decorators.
When activating a user, I need to ensure that certain optional data in the database is not empty by using class-validator dto. So far, my controller level validations for body, query, and all other aspects have been successful. The DTO file contains vali ...
I am currently facing a challenge in transforming Typescript code into NodeJS, specifically dealing with classes that contain Map fields of objects. I have been experimenting with the class-transformer package for serialization and deserialization (to JSON ...
I'm new to working with the class-transformer library. I have a simple Product class and JSON string set up to load a Product object. However, I'm encountering an issue where even though I can see the output indicating that the transformation was successfu ...
Just a moment ago I posted this question on Stack Overflow, and now I have a follow-up query :) Take a look at this code snippet: import { ClassConstructor } from "class-transformer"; import { useQuery as useApolloQuery } from "@apollo/clie ...
I have a simple objective in mind: I need to convert the name of one property on my response DTO. refund-order.response.dto.ts export class RefundOrderResponseDto { @Expose({ name: 'order_reference' }) orderReference: string; } What I w ...
I am working with a method that looks like this: @Entity() export class Picklist extends BaseD2CEntity { @ApiHideProperty() @PrimaryGeneratedColumn() id: number; @Column({ name: 'picklist_name' }) @IsString() @ApiProperty({ type: String, descr ...
Can someone help me with using the Nest JS Validation Pipe to automatically transform and validate my GET Request Query Params? For example: {{url}}/path?param-one=value¶m-two=value In my app.module.ts, I have included the following code to impl ...
Encountering an issue while working with a basic example that involves class-transformer. error TS1240: Unable to resolve signature of property decorator when called as an expression. Argument of type 'ClassFieldDecoratorContext<Root, Project[]> & ...
Recently, I delved into a fresh NestJs project and encountered a hurdle while trying to integrate serialization. The goal was to transform objects before sending them in a network response. Initially, everything seemed to be working smoothly until I attemp ...
class ClassA { x: number; y: number; sum(): number { return this.x + this.y; } } class ClassB { @Type(() => ClassA) z: {[key: string]: ClassA}; } const b = transformObject(ClassB, obj); const z = b.z[key]; const s = z.s ...
I am exploring the use of class-validator and class-transformer for validating API requests in a Next.js API route. Below is a simple API handler setup to showcase this: import { plainToInstance } from 'class-transformer'; import { IsString } from 'class- ...