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example of http get service in angular 6 -7

We use it to make ajax calls to the server.

The Http class provides the get() method for getting a resource, post() for creating it, put() for updating it, delete() for deleting resource and head() for getting metadata regarding a resource.


  • Observables is a new primitive type which acts as a blueprint for how we want to create streams, subscribe to them, react to new values, and combine streams together to build new ones.
  • RxJS stands for *R*eactive E*x*tensions for *J*ava*S*cript, and its a library that gives us an implementation of Observables for JavaScript.


By calling subscribe onto an observable it:

  • 1. Turns the observable hot so it starts producing.
  • 2. Lets us pass in a callback function so we react when anything is pushed onto the final stream in the observable chain.


Step1: Create a Service.,

ng g service httpserviceex

It will create httpserviceex.

Note : Add rxjs/Rx reference

npm install rxjs@6 rxjs-compat@6 –save

Step 2 :Create new Component

ng g c usehttpget

Step 3: Pass reference in app.component.html



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