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Angular News Thursday, June 14

The new Angular HttpClient API – Angular In Depth

  • We can do: – Rather than: – However if you’re still interested in the whole Response object you can observe for it: – // HttpClient – this.http.get(‘…’, { observe: ‘response’ });Query parameters – One thing that might not be as intuitive is the way that it handles query parameters.
  • Type checking responses – Thanks to TypeScript Generics you type HTTP method youre calling and the response will get be of that same type: – interface LoginResponse { – accessToken: string; – accessExpiration: { – login: ‘foo’, – password: ‘bar’ – }).
  • As the Request and Response objects are immutablewhich makes it easier to predict and test, we use the clone method to mutate the Response object.
  • In a file upload example it would be like that: – const req = new HttpRequest(‘POST’, ‘upload/file’, file, { – requestProgress: .
  • subscribe(event = { – if (event.type === HttpEventType.UploadProgress) { – console.log(event.total, event.loaded); – } – });Wrapping up – The HttpClient API is awesome.

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The new Angular HttpClient API – Angular In Depth

Create Dynamic Components in Angular

  • Dynamic data gives us the opportunity to build dynamic components.
  • Dynamic components are reusable and make building large-scale applications so much easier.
  • In this course, Juri Stumpflohner will take us through the specific use case of of creating a tabbed component which allows us to dynamically define new tabs.
  • On our journey of implementing this component we will learn about how we can dynamically instantiate components, leveraging the and .
  • Furthermore we will explore how to define view templates, how to pass them to our dynamically instantiated components as well as how to pass data into those templates.

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Create Dynamic Components in Angular

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