Typescript: json2ts is a nice helper

Writing interfaces can be annoying.

You can save a lot of time when you have to define Typescript interfaces for data that you are loading from a webservice.
Instead of typing all the interfaces yourself you can just use a nice service in the web: json2ts

Just paste in your json code and it generates the corresponding interfaces in Typescripts.

Example JSON:

[
{
"city": "Berlin",
"country": "Germany",
"currencies": [{"code":"EUR"}]
},
{
"city": "Paris",
"country": "France",
"currencies": [{"code":"EUR"}]
}

]

Generated code:

declare module namespace {

export interface Currency {
code: string;
}

export interface RootObject {
city: string;
country: string;
currencies: Currency[];
}

}

Now you just have to rename the 'RootObject' to a name you like.

Check it out here: http://json2ts.com/

For the case you need c# code try this http://json2csharp.com/. Both services are based on the JSON C# Class Generator.

Thanks to Timmy Kokke and Jonathan Keith for giving that to the community.

Comments

Nested Component - Passing Data to a Parent Component

In my previous article Nested Component - Passing Data to a Child Component , I explained how to pass data from a parent component to a child component. In this article I will describe how you do the other way, passing data from a child to a parent component. As you know, there is a decorator called @Input for passing data to the child, and of course there is another decorator to passing the data to the parent. This decorator is called @Output. Very obvious. So we have to import this decorator to your parent component import { Output } from '@angular/core' ; Now we can use this decorator. The property type of the decorator must be an event. The data to pass becomes the event payload. So we have to import the EventEmitter, too, because in Angular an event is defined with an EventEmitter object. import { Output , EventEmitter } from '@angular/core' ; Next step is to create a new instance of th...

Download a file with Angular2+ and FileSaver.js

Why should your Angular code download a file? Of course your webserver can deliver files and you can just add a simple link to your website but what if the file is delivered by a webservice and the webservice requests authentication (i.e. OAuth) to protect the file from unauthorized access? In this case you might have the requirement to download the file in your code and then tell the browser to save it to the hard disk. How to do that? First of all you need to add filesaver.js to your project. npm install file-saver --save ..and add the typings npm install @types/file-saver --save-dev More information about filesaver you can find on the filesaver github pages . To download the file via http you need to implement a service. The following imports are required: import { Injectable } from '@angular/core' ; import { Http , Response , RequestOptions , ResponseContentType } from ...

Nested Component - Passing Data to a Child Component

If you want to pass data to a nested component you have to use the @Import decorator. You can find this decorator at @angular/core import { Input } from '@angular/core' ; Now I show you how you can use this decorator. In my example I want to pass a counter from a Shopping List to a Shopping Basket Component In the end, the shopping basket should look like this: The Shopping Basket shows the number of items in an array (Shopping List). Everytime we put an item in the basket we count the items in the array this . counter = this . selectedProducts . length Now we have to pass the counter to the ShoppingBasketComponent by using property binding < app-shopping-basket [ count ]= "counter" ></ app-shopping-basket > After this we can use the input decorator at the child component export class ShoppingBasketComponent implements OnInit { @ Input () count ...

Talk About Code

Search This Blog