I am working on a basic REST API using Typescript, Koa, and Sequelize.
If the client sends an invalid PUT request with empty fields for "title" or "author", it currently returns a 500 error. I would prefer to respond with a '400 Bad Request' instead of that. How can I achieve this?
Below is part of the controller code:
import {JsonController, Get, Post, Put, Body, Param} from "routing-controllers";
import {Book} from "../models/Book";
@JsonController("/api")
export class BookController {
@Put("/books/:id")
async update(@Param("id") id: number, @Body() book: Book) {
return await Book.update(book, {where: {id: id}});
}
}
This snippet shows how Sequelize validators are used as decorators in the model:
import {Table, Column, NotEmpty, Equals, Model, HasMany} from 'sequelize-typescript';
@Table({tableName: 'Books'})
export class Book extends Model<Book> {
@NotEmpty
@Column
title: string;
@NotEmpty
@Column
author: string;
}
The current error message displayed is:
"message": "Validation error: Validation notEmpty on title failed,\nValidation error: Validation notEmpty on author failed"