How to upload a CSV file and read them using angular2?

Question

i have a requirement of uploading a .CSV file and read them inside my component, i have gone through this blog but it has a .CSV file stored in a particular loaction, i want

Answer 1

I made a upload functionality on my app. Hope it helps

Here's my sample upload function inside my component

uploadDatasource(fileInput: any) {

let file = fileInput.target.files[0];
let fileName = file.name;


let payload = {
  file,
}

let formData: FormData = new FormData();
formData.append('file',file,file.name);


this.DsListService.uploadDatasource(formData)
  .subscribe(
    response => { 
      console.log('UPLOADING success');


    },
    error => {
      console.log('error',error)
    });

}

here's my service class

import { Injectable } from '@angular/core';
import { Headers, Http, RequestOptions, Response, URLSearchParams } from '@angular/http';
import { Observable } from 'rxjs/Rx';
import { Config } from '../config/config';

@Injectable()
export class DsListService {

  private config = new Config;

  constructor(private http: Http) { }


  uploadDatasource(payload): Observable {
    let headers = new Headers();

    headers.append('Accept', 'application/json, text/plain,');
    let options = new RequestOptions({ headers: headers });


    return this.http.post(`API_UPLOAD_PATH`,payload, options)
      .map((res: Response) => {
        let data = res.json();
        return data;
      })
      .catch(error => Observable.throw(error))

  }
}

and here's my html