How to call ASP.NET MVC Web API from React Native Mobile App using localhost

I built WEB Api with ASP.NET MVC. I can access the API with fetch from JavaScript in my browser. But when I try to access the API from React Native App, I get a warning: "Possible Unhandled Promise Rejection (id: 2):......."

I do understand the warning since nothing is showing up on the screen, but I do wonder how would anyone call Web api on localhost from react native app.

I am running my react native app with "expo start --localhost --android" and it is showing up on my android phone connected with USB to my mashine.

App.Js

import React from "react";import { StyleSheet, Text, View, FlatList } from "react-native";import Constants from "expo-constants";import Row from "./Row";export default class App extends React.Component {  state = {    movies: null,    isLoading: true  };  componentDidMount() {    return fetch("https://localhost:44343/api/movies")      .then(response => {        return response.json();      })      .then(data => {        this.setState({          movies: data,          isLoading: false        });      })      .catch(err => {        this.setState({ movies: [...this.state.movies, err] });      });  }  render() {    if (this.state.isLoading) {      return (<View style={styles.container}><Text>Loading...</Text></View>      );    } else {      return (<View style={styles.container}><Text style={styles.text}>-MOVIES-</Text><FlatList            data={this.state.movies}            renderItem={({ item }) => <Row movies={item} />}          /></View>      );    }  }}const styles = StyleSheet.create({  container: {    flex: 1,    backgroundColor: "#fff",    alignItems: "center",    justifyContent: "center",    paddingTop: Constants.statusBarHeight  },  text: {    fontSize: 40  }});

if you look at componentDidMount() i tried to call fetch("https://localhost:44343/api/movies"), but it is not working, but when i run my app on Web, it is working just fine.

Does anyone have a clue how to fix this, so I can call api directly from react native?