HOSN-app/app/src/pages/profile/profile.ts

import { Component } from "@angular/core";
import {
  IonicPage,
  NavController,
  NavParams,
  InfiniteScroll
} from "ionic-angular";
import { TwitterApiProvider } from "../../providers/twitter-api/twitter-api";
import { HttpClient } from "@angular/common/http";
import Gun from "gun";

/**
 * Generated class for the ProfilePage page.
 *
 * See https://ionicframework.com/docs/components/#navigation for more info on
 * Ionic pages and navigation.
 */

@IonicPage()
@Component({
  selector: "page-profile",
  templateUrl: "profile.html"
})
export class ProfilePage {
  userId: string;
  user: any = [];
  gun;

  tweets: any[];

  constructor(
    public navCtrl: NavController,
    public navParams: NavParams,
    private twitter: TwitterApiProvider,
    private http: HttpClient
  ) {
    this.gun = Gun();
  }

  ionViewDidLoad() {
    this.userId = this.navParams.get("userId");

    this.twitter.fetchUser(this.userId).then(res => (this.user = res));

    this.twitter
      .fetchUserTimeline(this.userId)
      .then(res => (this.tweets = res));

    this.checkP2pTweets(this.userId);
  }

  doRefresh(refresher) {
    this.twitter.fetchUserTimeline(this.userId).then(res => {
      this.tweets = res;
      refresher.complete();
    });
  }

  loadMore(infiniteScroll: InfiniteScroll) {
    this.twitter
      .fetchUserTimelineSince(
        this.userId,
        this.tweets[this.tweets.length - 1].id
      )
      .then(res => {
        this.tweets = this.tweets.concat(res);
        infiniteScroll.complete();
      });
  }

  private async checkP2pTweets(userId) {
    let lastTweetHash;
    this.gun
      .get("username")
      .get("lastTweet")
      .once(lastTweet => (lastTweetHash = lastTweet));
    const res = await this.http
      .get("https://ipfs.infura.io:5001/api/v0/cat", {
        params: { arg: lastTweetHash }
      })
      .toPromise();
    // const tweet = JSON.parse(res);
    console.log(res);
  }
}