How to make http GET/POST request in ionic 2?

Question

How to http GET/POST request in ionic2 and what are the data need to import ?
I tried with HTTP GET request in JavaScript? but it does not work for me.

Answer 1

GET Example

this.posts = null;

this.http.get('https://www.reddit.com/r/gifs/top/.json?limit=2&sort=hot').map(res => res.json()).subscribe(data => {
    this.posts = data.data.children;
});

console.log(this.posts);

https://www.joshmorony.com/using-http-to-fetch-remote-data-from-a-server-in-ionic-2/

POST Example

let headers = new Headers();
headers.append('Content-Type', 'application/json');

let body = { 
  message:"do you hear me?"
};

this.http.post('http://spstest.000webhostap..., JSON.stringify(body), {headers: headers})
 .map(res => res.json())
 .subscribe(data => {
   console.log(data);
  });
}

https://www.joshmorony.com/how-to-send-data-with-post-requests-in-ionic-2/

Good luck.

Answer 2

For Creating the request firstly we need to add provider by using this command :-

$ ionic g provider restService

here restService is the ts file name in which we write the below code for making request

   load() {

    console.log(' RestServiceProvider Load Method fro listing');
    let postParams = { param1 : '', param2: '' }
    if (this.data) {
      return Promise.resolve(this.data);
    }

    // don't have the data yet
    return new Promise(resolve => {
      this.http.post("YOUR URL", postParams)
        .map(res => res.json())
        .subscribe(data => {
          this.data = data;
          resolve(this.data);
        });
    });
  }

In the above code load() is the method of restService class.this method is help out to make the request .This method is called in your other class like this.

 this.restSrvProvider.load().then(data => {
       let mydata = data;
      });

For more knowledge you may go through the ionic blog the