HTTP-Observable-Angular

Its a simple working project to understand working of HTTP and Observable.

Topics Covered in this project:-

1. Component
2. Http 
3. Observable
4. ngfor
5. Function
6. Subscribe
7. Service
8. json

• HTTP :-

1. The HTTP get request will hit a web API or a webservice which will fetch the data from a DB and send it back as an HTTP response.

• Observable :-

1. The response we get back from the HTTP call , is an observable
2. A sequence of items that arrives asychronously over time.

• Subscribe:-

1. Subscribe() is a method from the rxjs library.
2. The Subscribe operator is the glue that connects an observer to an Observable.

Example:-

3. If you can imagine yourself subscribing to a newsletter, every time there is a new newsletter, 
they will send it to your home (the method inside subscribe gets called).

  getAllEmployee(){
    this.api.getEmployee().subscribe({
      next:(res:any)=> {
        console.log(res);
        this.list =res;
      },
      error:()=>{
        alert("Error while fetching data")
      }
    })
  }