How to pass models from API to components

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What's the best way for transferring models between backend and frontend.

  • Is it better to clone the backend ones in frontend even if not all properties are used ?
  • Or use DTOs to transfer only necessary properties for each use-case ?

If there is a best practice, design-pattern or any other suggestion I'm interested to know.

For information my stack is Spring Boot and Angular 6.


If there is no need to convert incoming data for frontend, you can use backend model, in java you can generate typescript models, from java models by using bundle: https://github.com/vojtechhabarta/typescript-generator

To understand above problem consider this example where API returning some json data and Root component getting that data and passing it  To begin the process, you need to make the instance of OAuthHandler and pass the API key and API secret key. Then authenticate the instance with the access token and access token secret. View the code on Gist .


try to use swagger mate

https://dzone.com/articles/using-swagger-to-connect-a-backend-to-an-angular-f

hope this helps

I'll focus on the best way to pass data from API to components, and show how important is to decide the architecture of Front-End regardless of  Learn how to pass data to your components to 'parameterize' them. Use the `@Input()` decorator to designate a component member variable as an input and thus configure the component API.


I strongly recommend DTOs, and we have been using DTOs with this Typewriter extension for Visual Studio to keep the .ts files in sync with the .cs files.

Maybe you could do something similar.

https://frhagn.github.io/Typewriter/

The Angular front end uses the .ts version and the C# backend uses the .cs version. You can edit the .tst (typescript template file) in order to pull off a lot of customization if you need any differences between your .ts and .cs version.

This is the best pattern I've came up with below, which allows us to nest Enums and other Dto classes:

${ 
    // Enable extension methods by adding using Typewriter.Extensions.*
    using Typewriter.Extensions.Types;
    string TypeWithNoArray(Type t) => t.Name.TrimEnd('[', ']');
}
/* DO NOT EDIT ANY .TS FILES WITH THIS COMMENT
    THESE .TS FILES ARE GENERATED BY A CORRESPONDING .CS FILE AND A .TST FILE
    BY USING THE TYPEWRITER EXTENSION:
    https://frhagn.github.io/Typewriter */
$Classes(*Dto*)[
$Properties(x => !x.Type.IsPrimitive || x.Type.IsEnum)[$Type[import { $TypeWithNoArray } from './$TypeWithNoArray';
]]
export class $Name {
    $Properties[public $name: $Type = $Type[$Default];
    ]$BaseClass[$Properties[public $name: $Type = $Type[$Default];]]
}
]
$Enums(*Dto*)[
export enum $Name {$Values[
    $name = $Value][,]
}
]

How can we integrate an API with an Angular frontend app, while limiting and use the resulting Object in our Angular components and HTML templates. the generic type you are able to pass to an http get or post, etc its  What is the best way to pass data from an ASP.NET MVC controller to an Angular 2.0 component. For example we use the ASP.NET MVC Model and would like to send a JSON version of it to Angular, so we can use it in Angular. At the moment the controller is serving the view we are able to already push some data to Angular2 (the model).


Angular 7 is entirely based on components. In two-way data binding, automatic synchronization of data happens between the Model and the View. In services, we import RxJS as given below to call the API. called the createUsers() method from apiService and we pass the user object as a parameter. A LoopBack model defines the application data, validation rules, data access capabilities, and business logic for an API, and provides a REST API by default. This REST API can then be used by a REST API definition that was created using the API Designer or CLI and exposed to your users.


November 16, 2016 edits reflect API changes since the original publishing of this article. When a React Axiom model is passed into a component, the This is fine for server-to-client data transfer, however it is less flexible in  In this tutorial, you'll create wrapper components with props using the React JavaScript library. Wrapper components are components that provide a default structure to display the child components. This pattern is useful for creating user interface (UI) elements that are used repeatedly throughout a design, like modals, template pages, and


Typically in Angular, you have a main view, and multiple models. How do you do pass that function to the child component? you to interpolate the main link together with the video id that you get from the youtube api. To find out about the models for individual components, see the "How to" pages and API documentation for individual components. Here are some of our examples that use models directly: All but the simplest of the table examples implement custom table data models.