I am trying to load the sound which i retrieve from my own API into the EXPO AV createAsync function:
const PlayerWidget: React.FC = () => {
const [song, setSong] = useState(null);
const [sound, setSound] = useState<Sound | null>(null);
const [isPlaying, setIsPlaying] = useState<boolean>(true);
const [liked, setLiked] = useState<boolean>(false);
const [duration, setDuration] = useState<number | null>(null);
const [position, setPosition] = useState<number | null>(null);
const { songId } = useContext(AppContext);
const { data, error } = useQuery(SongQuery, {
variables: { _id: songId },
});
useEffect(() => {
if (data && data.song) {
setSong(data.song);
}
}, [data]);
useEffect(() => {
if (song) {
playCurrentSong();
}
}, [song]);
const playCurrentSong = async () => {
if (sound) {
await sound.unloadAsync();
}
const { sound: newSound } = await Sound.createAsync(
{ uri: song.soundUri },
{ shouldPlay: isPlaying }
);
console.log("sound" + newSound);
setSound(newSound);
};
const onPlayPausePress = async () => {
if (!sound) {
console.log("no sound");
return;
}
if (isPlaying) {
await sound.pauseAsync();
} else {
await sound.playAsync();
}
};
const onLikeSong = async () => {
try {
setLiked(true);
} catch (e) {
console.log(e);
}
};
const getProgress = () => {
if (sound === null || duration === null || position === null) {
return 0;
}
return (position / duration) * 100;
};
const onPlaybackStatusUpdate = (status) => {
setIsPlaying(status.isPlaying);
setDuration(status.durationMillis);
setPosition(status.positionMillis);
};
}
Weirdly enough, the log after the function does not even work, it is never logged. I don't get any errors though, making it quite hard to debug this where it goes wrong, the URI is working and pointing towards an mp3 file, and the state is set correctly. Any pointers how i could debug this further?
Related
I need help with the async nature of Async storage and axios api. Here's the functionality that I am trying to achieve ->
send request to two separate api to get some data.
display that data on the screen with some additional text
api request are authenticated so a token is passed as Authentication Header
I have attached the current implementation, I am having the a number of errors in this
Errors:
Login_token not set in state after fetching from Async Storage.
Data not set in state after api call
both resulting in either failed api calls or undefined state errors on render
This is my code.
import React, { FunctionComponent, useEffect, useCallback, useState} from 'react';
import { StyleSheet, View} from 'react-native';
// chat
import { GiftedChat } from 'react-native-gifted-chat';
// navigation
import { RootStackParamList } from '../../navigators/RootStack';
import { StackScreenProps } from '#react-navigation/stack';
export type Props = StackScreenProps<RootStackParamList, "Chat">;
// api
import { Convo_details, Send_Msg, List_Msg, Expert_Public_Profile } from '../../api/UserApi';
import Spinner from 'react-native-loading-spinner-overlay';
import AsyncStorage from '#react-native-async-storage/async-storage';
import uuid from 'react-native-uuid';
const Chat: FunctionComponent<Props> = ({ navigation, route, ...props }) => {
// console.log(props.route.params);
const [login_token, setlogin_token] = useState('')
const [conversation_id, setconversation_id] = useState('')
const [conversation_details, setconversation_details] = useState({})
const [currentuser, setcurrentuser] = useState({})
const [loading, setLoading] = useState(false);
const [expertuid, setexpertuid] = useState('')
const [ExpertProfile, setExpertProfile] = useState({})
const [messages, setMessages] = useState([]);
useEffect(() => {
getlogintoken()
console.log("####################################","getlogintoken");
}, [])
/* conversationid */
useEffect(() => {
if (route.params != null) {
setconversation_id(route.params[0])
}
console.log("####################################","conversation id");
}, [])
/* expert uid */
useEffect(() => {
if (route.params != null) {
setexpertuid(route.params[1])
}
console.log("####################################","expert uid");
}, [])
/* expert public profile */
useEffect(() => {
getexpertpublicprofile()
getConvo_details()
console.log("####################################","convo_details");
}, [])
useEffect(() => {
// get current user
AsyncStorage.getItem("currentuser").then(res => {
if (res != null) setcurrentuser(res)
else alert("Current user not found")
})
console.log("####################################","current user");
}, [])
// set welcome msg
useEffect(() => {
if (Object.keys(conversation_details).length != 0 && Object.keys(ExpertProfile).length != 0)
setwelcomemsg()
}, [])
const onSend = useCallback(async (messages = []) => {
// console.log(messages[0].text);
setMessages(previousMessages => GiftedChat.append(previousMessages, messages))
const data = {
conversation_id: "f98d6851-a713-4f58-9118-77a779ff175f",//conversation_id,
message_type: "TEXT",
body: messages[0].text
}
const res: any = await Send_Msg(data, login_token)
.catch(error => {
alert(`Send_Msg -> ${error}`)
console.log(error);
return
})
if (res.status == 200) {
console.log(res.data);
} else console.log(res);
}, [])
const getexpertpublicprofile = async () => {
setLoading(true)
const res: any = await Expert_Public_Profile(expertuid, login_token)
.catch(error => {
setLoading(false)
console.log("Expert public profile ->");
alert(`Expert public profile ->${error.message}`)
console.log(error);
return
})
setLoading(false)
if (res.status === 200) setExpertProfile(res.data)
else {
alert(`get expert public profile${res.data.message}`)
console.log("getexpertpublicprofile -->");
console.log(res.data);
}
}
const getlogintoken = () => {
AsyncStorage.getItem("login_token").then(res => {
if (res != null) {
setLoading(false)
setlogin_token(res)
}
else alert("No login token found")
})
}
const getConvo_details = async () => {
setLoading(true)
const res: any = await Convo_details(conversation_id, login_token)
.catch(error => {
setLoading(false)
alert(`Convo_details-->${error.message}`)
console.log("Convo_details -->");
console.log(error);
return
})
setLoading(false)
if (res.status === 200) setconversation_details(res.data)
else {
alert(`get convo details-> ${res.data.message}`)
console.log("getConvo_details -->");
console.log(res.data);
}
}
const setwelcomemsg = () => {
try {
let user = JSON.parse(currentuser)
let messages = [
{
_id: uuid.v4().toString(),
conversation_id: conversation_details.conversation_id,
created_at: new Date(),
from: conversation_details.recipient.user_uid,
type: "TEXT",
text: `About Me - ${ExpertProfile.bio}`,
user: {
_id: conversation_details.recipient.user_uid,
}
},
{
_id: uuid.v4().toString(),
conversation_id: conversation_details.conversation_id,
created_at: new Date(),
from: conversation_details.recipient.user_uid,
type: "TEXT",
text: `My name is ${conversation_details.recipient.name}`,
user: {
_id: conversation_details.recipient.user_uid,
}
},
{
_id: uuid.v4().toString(),
conversation_id: conversation_details.conversation_id,
created_at: new Date(),
from: conversation_details.recipient.user_uid,
type: "TEXT",
text: `Hi ${user.full_name}`,
user: {
_id: conversation_details.recipient.user_uid,
}
}]
setMessages(previousMessages => GiftedChat.append(previousMessages, messages))
} catch (error) {
console.log("try -> set welcome msg");
console.log(error);
return
}
}
return (
<View style={styles.maincontainer}>
<Spinner
visible={loading}
textContent={'Loading...'}
textStyle={{ color: '#FFF' }}
/>
<GiftedChat
messages={messages}
onSend={messages => onSend(messages)}
user={{
_id: currentuser.user_uid,
}}
isTyping={false}
scrollToBottom={true}
showAvatarForEveryMessage={true}
renderAvatar={() => null}
/>
</View>
);
}
export default Chat;
const styles = StyleSheet.create({
maincontainer: {
flex: 1,
},
});
When axios returns, it usually give the response as res.data, so in your case, try either res.data or res.data.yourToken (I'm not sure how it's your object).
Gurav,
As far as your code above, The api call's will trigger even before you get currentuser or loginToken. You have to handle the api call after getting the currentuser and loginToken. This can be gracefully handled with async, await.
example code:
useEffect(() => {
getData()
}, [])
useEffect(() => {
if(login_token && currentuser) {
//The api call goes here after you get the logintoken andcurrentuser.
// The above condition is just an example but will vary based on your requirements
}
}, [login_token, currentuser])
const getData = async () => {
await getlogintoken()
await getcurrentuser()
}
const getlogintoken = async () => {
await AsyncStorage.getItem("login_token").then(res => {
if (res != null) {
setLoading(false)
setlogin_token(res)
}
else alert("No login token found")
})
}
const getcurrentuser = async () => {
await AsyncStorage.getItem("currentuser").then(res => {
if (res != null) setcurrentuser(res)
else alert("Current user not found")
})
}
I am trying to use react-native-track-player in my app. The functionality of my app requires that one audio track is played, and then it needs to await user input.
I have tried the following code however it leads to laggy and unpredictable behaviour. Is there a way to natively implement pause after each track?
useTrackPlayerEvents([Event.PlaybackTrackChanged], async event => {
if(!autoplay&&appStateVisible==='active'){
TrackPlayer.pause();
TrackPlayer.seekTo(0)
} else {
setAutoplay(false)
}
if (
event.type === Event.PlaybackTrackChanged &&
event.nextTrack !== undefined
) {
const track = await TrackPlayer.getTrack(event.nextTrack);
const currentTrack = await TrackPlayer.getCurrentTrack();
const {title, artist, artwork} = track || {};
console.log(track)
setTrackTitle(title);
setTrackArtist(artist);
setTrackArtwork(artwork);
setTrackNumber(currentTrack)
}
});
Here is my service.js that will run in background mode.
import TrackPlayer, { Event, State } from "react-native-track-player";
import { AppState } from "react-native";
import React, { Component, useState, useEffect, useRef } from "react";
let wasPausedByDuck = false;
var appState = null;
var autoplay = false;
const subscription = AppState.addEventListener("change", (nextAppState) => {
if (
appState &&
appState.match(/inactive|background/) &&
nextAppState === "active"
) {
console.log("App has come to the foreground!");
}
appState = nextAppState;
console.log("AppState service", appState);
});
module.exports = async function setup() {
TrackPlayer.addEventListener(Event.PlaybackTrackChanged, async () => {
if (!autoplay && appState === "background") {
await TrackPlayer.pause();
await TrackPlayer.seekTo(0);
} else {
autoplay = false;
}
});
TrackPlayer.addEventListener(Event.PlaybackState, (x) => {
});
TrackPlayer.addEventListener(Event.RemotePause, () => {
TrackPlayer.pause();
});
TrackPlayer.addEventListener(Event.RemotePlay, () => {
TrackPlayer.seekTo(0);
TrackPlayer.play();
});
TrackPlayer.addEventListener(Event.RemoteNext, async () => {
autoplay = true;
await TrackPlayer.skipToNext();
await TrackPlayer.play();
});
function isEven(x) {
return x % 2 == 0;
}
TrackPlayer.addEventListener(Event.RemotePrevious, async () => {
const currentTrack = await TrackPlayer.getCurrentTrack();
const playbackState = await TrackPlayer.getState();
const position = await TrackPlayer.getPosition();
const isPrompt = isEven(currentTrack);
if (playbackState === "playing") {
if (position > 2) {
TrackPlayer.seekTo(0);
} else {
if (currentTrack !== 0) {
if (!isPrompt) {
TrackPlayer.skipToPrevious();
} else {
TrackPlayer.skip(currentTrack - 2);
}
} else {
TrackPlayer.seekTo(0);
}
}
} else {
if (currentTrack !== 0) {
if (!isPrompt) {
autoplay = true;
TrackPlayer.skipToPrevious();
TrackPlayer.play();
} else {
autoplay = true;
TrackPlayer.skip(currentTrack - 2);
TrackPlayer.play();
}
} else {
TrackPlayer.seekTo(0);
TrackPlayer.play();
}
}
});
TrackPlayer.addEventListener(Event.RemoteDuck, async (e) => {
if (e.permanent === true) {
TrackPlayer.stop();
} else {
if (e.paused === true) {
const playerState = await TrackPlayer.getState();
wasPausedByDuck = playerState !== State.Paused;
TrackPlayer.pause();
} else {
if (wasPausedByDuck === true) {
TrackPlayer.play();
wasPausedByDuck = false;
}
}
}
});
};
In response to this question on the react-native-track-player support discord from answered by jspizziri, who suggested adding one track to the queue at a time. I implemented this using a playlist ref and index ref and essentially controlling the player externally.
import React, { createContext, useContext, useState, useEffect } from 'react';
import {
authenticationService,
getUserProfileService,
} from '../services/user-service';
import { getDonationHistory } from '../services/donation-service';
import AsyncStorage from '#react-native-async-storage/async-storage';
import * as TaskManager from 'expo-task-manager';
import * as Location from 'expo-location';
import * as BackgroundFetch from 'expo-background-fetch';
const UserInfoContext = createContext();
const UserInfoProvider = ({ children }) => {
const [isLoggedIn, setIsLoggedIn] = useState(false);
const [userProfile, setUserProfile] = useState({
donorId: '',
icNo: '',
fName: '',
lName: '',
bloodType: '',
});
const [errorMessage, setErrorMessage] = useState(null);
const [location, setLocation] = useState({ latitude: '', longitude: '' });
let updateLocation = (loc) => {
setLocation(loc);
};
console.log(location);
const sendBackgroundLocation = async () => {
const { status } = await Location.requestForegroundPermissionsAsync();
if (status === 'granted') {
const { status } = await Location.requestBackgroundPermissionsAsync();
if (status === 'granted') {
await Location.startLocationUpdatesAsync('LocationUpdate', {
accuracy: Location.Accuracy.Balanced,
timeInterval: 10000,
distanceInterval: 1,
foregroundService: {
notificationTitle: 'Live Tracker',
notificationBody: 'Live Tracker is on.',
},
});
}
}
};
const _requestLocationPermission = async () => {
(async () => {
let { status } = await Location.requestForegroundPermissionsAsync();
if (status == 'granted') {
let { status } = await Location.requestBackgroundPermissionsAsync();
if (status == 'granted') {
} else {
console.log('Permission to access location was denied');
}
} else {
console.log('Permission to access location was denied');
}
})();
};
sendBackgroundLocation();
const getUserProfile = () => {
return userProfile;
};
useEffect(() => {
(async () => await _requestLocationPermission())();
retrieveAuthTokens();
retrieveUserProfile();
});
let retrieveAuthTokens = async () => {
try {
const authTokens = await AsyncStorage.getItem('authTokens');
authTokens ? setIsLoggedIn(true) : setIsLoggedIn(false);
} catch (error) {
console.log(error.message);
}
};
let retrieveUserProfile = async () => {
try {
const userProfile = JSON.parse(await AsyncStorage.getItem('userProfile'));
userProfile
? setUserProfile({
donorId: userProfile.donorId,
icNo: userProfile.appUser.username,
fName: userProfile.fName,
lName: userProfile.lName,
bloodType: userProfile.bloodType,
})
: null;
} catch (error) {
console.log(error.message);
}
};
let loginUser = (values) => {
authenticationService(values)
.then(async (data) => {
if (data !== undefined && data !== null) {
const tokens = data.data;
await AsyncStorage.setItem('authTokens', JSON.stringify(tokens));
getProfile(values.icNo);
getHistories(userProfile.donorId);
setErrorMessage(null);
} else {
setErrorMessage('Wrong email/password!');
}
})
.catch((error) => console.log(error.message));
};
let logoutUser = async () => {
try {
await AsyncStorage.clear().then(console.log('clear'));
setIsLoggedIn(false);
} catch (error) {
console.log(error.message);
}
};
getProfile = (icNo) => {
getUserProfileService(icNo)
.then(async (res) => {
if (res !== undefined && res !== null) {
const profile = res.data;
await AsyncStorage.setItem('userProfile', JSON.stringify(profile));
setIsLoggedIn(true);
}
})
.catch((error) => console.log(error.message));
};
const getHistories = (userId) => {
getDonationHistory(userId)
.then(async (res) => {
if (res !== undefined && res !== null) {
const historyData = res.data;
await AsyncStorage.setItem(
'donationHistories',
JSON.stringify(historyData)
);
} else {
console.log('no data');
}
})
.catch((error) => console.log(error.message));
};
let contextData = {
loginUser: loginUser,
logoutUser: logoutUser,
isLoggedIn: isLoggedIn,
errorMessage: errorMessage,
userProfile: userProfile,
getHistories: getHistories,
};
return (
<UserInfoContext.Provider value={contextData}>
{children}
</UserInfoContext.Provider>
);
};
export const useUserInfo = () => useContext(UserInfoContext);
export default UserInfoProvider;
function myTask() {
try {
const backendData = 'Simulated fetch ' + Math.random();
return backendData
? BackgroundFetch.BackgroundFetchResult.NewData
: BackgroundFetch.BackgroundFetchResult.NoData;
} catch (err) {
return BackgroundFetch.BackgroundFetchResult.Failed;
}
}
async function initBackgroundFetch(taskName, interval = 60 * 15) {
try {
if (!TaskManager.isTaskDefined(taskName)) {
TaskManager.defineTask(taskName, ({ data, error }) => {
if (error) {
console.log('Error bg', error);
return;
}
if (data) {
const { locations } = data;
console.log(
locations[0].coords.latitude,
locations[0].coords.longitude
);
//-----------------doesnt work ----------------------------
UserInfoProvider.updateLocation({
latitude: locations[0].coords.latitude,
longitude: locations[0].coords.longitude,
});
//-----------------doesnt work ----------------------------
}
});
}
const options = {
minimumInterval: interval, // in seconds
};
await BackgroundFetch.registerTaskAsync(taskName, options);
} catch (err) {
console.log('registerTaskAsync() failed:', err);
}
}
initBackgroundFetch('LocationUpdate', 5);
I'm trying to update the location state in the UserInfoProvider and this location info will be sent to the firestore along with the userprofile details retrieved in this provider.
However, it seems that i cant access the
UserInfoProvider.updateLocation()
outside the UserInfoProvider component.
Is there anyway I can get both the userprofile info and the location info retrieved from background task together and send them to firestore?
At the moment, only the
console.log(
locations[0].coords.latitude,
locations[0].coords.longitude
);
in the background task seems to be working.
Error I got:
TaskManager: Task "LocationUpdate" failed:, [TypeError: undefined is
not a function (near '...UserInfoProvider.updateLocation...')] at
node_modules\react-native\Libraries\LogBox\LogBox.js:149:8 in
registerError at
node_modules\react-native\Libraries\LogBox\LogBox.js:60:8 in errorImpl
at node_modules\react-native\Libraries\LogBox\LogBox.js:34:4 in
console.error at
node_modules\expo\build\environment\react-native-logs.fx.js:27:4 in
error at node_modules\expo-task-manager\build\TaskManager.js:143:16 in
eventEmitter.addListener$argument_1 at
node_modules\regenerator-runtime\runtime.js:63:36 in tryCatch at
node_modules\regenerator-runtime\runtime.js:294:29 in invoke at
node_modules\regenerator-runtime\runtime.js:63:36 in tryCatch at
node_modules\regenerator-runtime\runtime.js:155:27 in invoke at
node_modules\regenerator-runtime\runtime.js:190:16 in
PromiseImpl$argument_0 at
node_modules\react-native\node_modules\promise\setimmediate\core.js:45:6
in tryCallTwo at
node_modules\react-native\node_modules\promise\setimmediate\core.js:200:22 in doResolve at
node_modules\react-native\node_modules\promise\setimmediate\core.js:66:11
in Promise at node_modules\regenerator-runtime\runtime.js:189:15 in
callInvokeWithMethodAndArg at
node_modules\regenerator-runtime\runtime.js:212:38 in enqueue at
node_modules\regenerator-runtime\runtime.js:239:8 in exports.async at
node_modules\expo-task-manager\build\TaskManager.js:133:57 in
eventEmitter.addListener$argument_1 at
node_modules\react-native\Libraries\vendor\emitter_EventEmitter.js:135:10 in EventEmitter#emit at
node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:414:4
in __callFunction at
node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:113:6
in __guard$argument_0 at
node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:365:10
in __guard at
node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:112:4
in callFunctionReturnFlushedQueue
By reviewing UserInfoProvider context value:
let contextData = {
loginUser: loginUser,
logoutUser: logoutUser,
isLoggedIn: isLoggedIn,
errorMessage: errorMessage,
userProfile: userProfile,
getHistories: getHistories,
};
updateLocation function not available and you can't access.
You need to use useUserInfo to consume UserInfoProvider value.
the hash data I received using asyncStorage in my react native project is wrong. It actually works when I refresh the page. My request is probably running earlier than hash. However, I could not find a solution to this.
const [info, setInfo] = useState('');
const [hash, setHash] = useState(null);
const _retrieveData = async () => {
try {
const value = await AsyncStorage.getItem('hash');
setHash(value)
} catch (error) {
// Error retrieving data
}
};
useEffect(() => {
_retrieveData()
setTimeout(() => {
console.log(hash) //
axios.get(apiUrl + 'loginInfo?hash=' + hash)
.then(response => {
setInfo(response.data.message);
console.log('res', response);
});
}, 1000);
}, []);
The _retriveData method should be inside of the useEffect.
const [info, setInfo] = useState('');
const [hash, setHash] = useState(null);
useEffect(() => {
const _retrieveData = async () => {
try {
const hash = await AsyncStorage.getItem('hash');
return hash
} catch (error) {
console.log('error',error);
// Error retrieving data
}
};
const hash = _retrieveData()
setTimeout(() => {
console.log(hash) //
axios.get(apiUrl + 'loginInfo?hash=' + hash)
.then(response => {
setInfo(response.data.message);
console.log('res', response);
});
}, 1000);
}, []);
I solved the problem by getting help from a friend.
const [info, setInfo] = useState({});
const [hash, setHash] = useState(null);
const _retrieveData = useCallback(async () => {
try {
const value = await AsyncStorage.getItem('hash');
setHash(value);
} catch (error) {
// Error retrieving data
}
}, []);
const getInfo = useCallback(async () => {
try {
const response = await axios.get(apiUrl + 'loginInfo?hash=' + hash);
setInfo(response.data.message)
} catch (e) {
console.log(e);
}
}, [hash]);
useEffect(() => {
if (!hash) {
_retrieveData();
}
}, [hash])
useEffect(() => {
if (hash) {
setTimeout(() => {
getInfo();
},500)
}
}, [hash, getInfo]);
I'm developing a react-native application, which uses webRTC.
I extremely liked the minimal version I found here (kudos to baconcheese113!) and I decided to refactor it to create my react component.
I have set up a backend (DynamoDB, Appsync) and a redux store that allows me to:
dispatch an action sendCreateUserControlMsg, which down the line calls the Appsync endpoint to create a new ControlUserMsg
subscribe to a ControlUserMsg, set the flag triggerWebrtcData and save webrtcData in the Redux state
The following component (which for now calls itself), sometimes works, but mostly doesn't. I feel that the problem is related to JS Promises, but I do not fully understand how I should design the component to avoid race conditions.
import React, { useState, useEffect } from 'react';
import { View, SafeAreaView, Button, StyleSheet } from 'react-native';
import { RTCPeerConnection, RTCView, mediaDevices } from 'react-native-webrtc';
import { sendCreateUserControlMsg } from '../redux/actions/UserControlMsgActions';
import controlMsgActions from './../model/control_msg_actions';
import webrtcActionTypes from './../model/webrtc_action_types';
import { useDispatch, useSelector } from "react-redux";
import * as triggersMatch from '../redux/actions/TriggersMatchActions';
var IS_LOCAL_USER = true //manual flag I temporarily set
var localUserID = '00';
var localUser = 'localUser'
var remoteUserID = '01';
var remoteUser = 'remoteUser'
if (IS_LOCAL_USER) {
var matchedUserId = remoteUserID
var user_id = localUserID;
var user = localUser
}
else {
var matchedUserId = localUserID
var user_id = remoteUserID;
var user = remoteUser
}
export default function App() {
const dispatch = useDispatch();
var triggersMatchBool = useSelector(state => state.triggers_match)
var webrtcData = useSelector(state => state.webrtc_description.webrtcData)
const [localStream, setLocalStream] = useState();
const [remoteStream, setRemoteStream] = useState();
const [cachedLocalPC, setCachedLocalPC] = useState();
const [cachedRemotePC, setCachedRemotePC] = useState();
const sendICE = (candidate, isLocal) => {
var type
isLocal ? type = webrtcActionTypes["NEW_ICE_CANDIDATE_FROM_LOCAL"] : type = webrtcActionTypes["NEW_ICE_CANDIDATE_FROM_REMOTE"]
var payload = JSON.stringify({
type,
candidate
})
console.log(`Sending ICE to ${matchedUserId}`)
dispatch(sendCreateUserControlMsg(matchedUserId, user_id, user, payload, controlMsgActions["WEBRTC_DATA"]));
}
const sendOffer = (offer) => {
type = webrtcActionTypes["OFFER"]
var payload = JSON.stringify({
type,
offer
})
console.log(`Sending Offer to ${matchedUserId}`)
dispatch(sendCreateUserControlMsg(matchedUserId, user_id, user, payload, controlMsgActions["WEBRTC_DATA"]));
}
const sendAnswer = (answer) => {
type = webrtcActionTypes["ANSWER"]
var payload = JSON.stringify({
type,
answer
})
console.log(`Sending answer to ${matchedUserId}`)
dispatch(sendCreateUserControlMsg(matchedUserId, user_id, user, payload, controlMsgActions["WEBRTC_DATA"]));
}
const [isMuted, setIsMuted] = useState(false);
// START triggers
async function triggerMatchWatcher() {
if (triggersMatchBool.triggerWebrtcData) {
dispatch(triggersMatch.endTriggerWebrtcData());
switch (webrtcData.type) {
case webrtcActionTypes["NEW_ICE_CANDIDATE_FROM_LOCAL"]:
try {
setCachedRemotePC(cachedRemotePC.addIceCandidate(webrtcData.candidate))
} catch (error) {
console.warn('ICE not added')
}
break;
case webrtcActionTypes["NEW_ICE_CANDIDATE_FROM_REMOTE"]:
try {
setCachedLocalPC(cachedLocalPC.addIceCandidate(webrtcData.candidate))
} catch (error) {
console.warn('ICE not added')
}
break;
case webrtcActionTypes["OFFER"]:
console.log('remotePC, setRemoteDescription');
try {
await cachedRemotePC.setRemoteDescription(webrtcData.offer);
console.log('RemotePC, createAnswer');
const answer = await cachedRemotePC.createAnswer();
setCachedRemotePC(cachedRemotePC)
sendAnswer(answer);
} catch (error) {
console.warn(`setRemoteDescription failed ${error}`);
}
case webrtcActionTypes["ANSWER"]:
try {
console.log(`Answer from remotePC: ${webrtcData.answer.sdp}`);
console.log('remotePC, setLocalDescription');
await cachedRemotePC.setLocalDescription(webrtcData.answer);
setCachedRemotePC(cachedRemotePC)
console.log('localPC, setRemoteDescription');
await cachedLocalPC.setRemoteDescription(cachedRemotePC.localDescription);
setCachedLocalPC(cachedLocalPC)
} catch (error) {
console.warn(`setLocalDescription failed ${error}`);
}
}
}
}
useEffect(() => {
triggerMatchWatcher()
}
);
const startLocalStream = async () => {
// isFront will determine if the initial camera should face user or environment
const isFront = true;
const devices = await mediaDevices.enumerateDevices();
const facing = isFront ? 'front' : 'environment';
const videoSourceId = devices.find(device => device.kind === 'videoinput' && device.facing === facing);
const facingMode = isFront ? 'user' : 'environment';
const constraints = {
audio: true,
video: {
mandatory: {
minWidth: 500, // Provide your own width, height and frame rate here
minHeight: 300,
minFrameRate: 30,
},
facingMode,
optional: videoSourceId ? [{ sourceId: videoSourceId }] : [],
},
};
const newStream = await mediaDevices.getUserMedia(constraints);
setLocalStream(newStream);
};
const startCall = async () => {
const configuration = { iceServers: [{ url: 'stun:stun.l.google.com:19302' }] };
const localPC = new RTCPeerConnection(configuration);
const remotePC = new RTCPeerConnection(configuration);
localPC.onicecandidate = e => {
try {
console.log('localPC icecandidate:', e.candidate);
if (e.candidate) {
sendICE(e.candidate, true)
}
} catch (err) {
console.error(`Error adding remotePC iceCandidate: ${err}`);
}
};
remotePC.onicecandidate = e => {
try {
console.log('remotePC icecandidate:', e.candidate);
if (e.candidate) {
sendICE(e.candidate, false)
}
} catch (err) {
console.error(`Error adding localPC iceCandidate: ${err}`);
}
};
remotePC.onaddstream = e => {
console.log('remotePC tracking with ', e);
if (e.stream && remoteStream !== e.stream) {
console.log('RemotePC received the stream', e.stream);
setRemoteStream(e.stream);
}
};
localPC.addStream(localStream);
// Not sure whether onnegotiationneeded is needed
// localPC.onnegotiationneeded = async () => {
// try {
// const offer = await localPC.createOffer();
// console.log('Offer from localPC, setLocalDescription');
// await localPC.setLocalDescription(offer);
// sendOffer(localPC.localDescription)
// } catch (err) {
// console.error(err);
// }
// };
try {
const offer = await localPC.createOffer();
console.log('Offer from localPC, setLocalDescription');
await localPC.setLocalDescription(offer);
sendOffer(localPC.localDescription)
} catch (err) {
console.error(err);
}
setCachedLocalPC(localPC);
setCachedRemotePC(remotePC);
};
const switchCamera = () => {
localStream.getVideoTracks().forEach(track => track._switchCamera());
};
const closeStreams = () => {
if (cachedLocalPC) {
cachedLocalPC.removeStream(localStream);
cachedLocalPC.close();
})
}
if (cachedRemotePC) {
cachedRemotePC.removeStream(localStream);
cachedRemotePC.close();
})
}
setLocalStream();
setRemoteStream();
setCachedRemotePC();
setCachedLocalPC();
};
return (
<SafeAreaView style={styles.container}>
{!localStream && <Button title="Click to start stream" onPress={startLocalStream} />}
{localStream && <Button title="Click to start call" onPress={startCall} disabled={!!remoteStream} />}
{localStream && (
<View style={styles.toggleButtons}>
<Button title="Switch camera" onPress={switchCamera} />
</View>
)}
<View style={styles.rtcview}>
{localStream && <RTCView style={styles.rtc} streamURL={localStream.toURL()} />}
</View>
<View style={styles.rtcview}>
{remoteStream && <RTCView style={styles.rtc} streamURL={remoteStream.toURL()} />}
</View>
<Button title="Click to stop call" onPress={closeStreams} disabled={!remoteStream} />
</SafeAreaView>
);
}
const styles = StyleSheet.create({
// omitted
});
The most common errors I receive are:
Error: Failed to add ICE candidate
Possible Unhandled Promise Rejection
and
setLocalDescription failed TypeError: Cannot read property 'sdp' of
undefined
If I console.log I can see that are JS Promise, but since are not a functions I cannot use .then().
How can I call the addIceCandidate method or setLocalDescription method without incurring in the Unhandled Promise Rejection errors?
What are the best practices to work with WebRTC in react-native?