pubnub

问题 I am working on realtime geolocation-tracking app using pubnub and react-native-maps in react-native. pubnub.publish() is working when called inside Geolocation.getCurrentLocation() and Geolocation.watchPosition() inside componentDidMount() . Here is the code which is worlking fine: Geolocation.getCurrentPosition( position => { if (this.state.allowsGPS) { this.pubnub.publish({ message: { latitude: position.coords.latitude, longitude: position.coords.longitude, from: '1' }, channel: "location

来源： https://stackoverflow.com/questions/61346950/typeerror-object-is-not-a-constructor-evaluating-new-pubnubreact-default

问题 I am trying to integrate pubnub-react in react native. Here's my code: import React, { Component } from 'react'; import PubNubReact from 'pubnub-react'; import {key1,key2} from '../config.js export default class extends Component { constructor(props) { super(props); this.pubnub = new PubNubReact({ publishKey: key1, subscribeKey: key2 }); this.pubnub.init(this) } render() { return null } } This is throwing this error: [[TypeError: Object is not a constructor (evaluating 'new _pubnubReact

问题 I am trying to integrate pubnub-react in react native. Here's my code: import React, { Component } from 'react'; import PubNubReact from 'pubnub-react'; import {key1,key2} from '../config.js export default class extends Component { constructor(props) { super(props); this.pubnub = new PubNubReact({ publishKey: key1, subscribeKey: key2 }); this.pubnub.init(this) } render() { return null } } This is throwing this error: [[TypeError: Object is not a constructor (evaluating 'new _pubnubReact

问题 I am using PubNub for notifications transfer across my Js code. I am unable to figure out how to reconnect in PubNub once internet disconnects and comes back up. having restore: true in my init and doing this.listeners = { message: msgEvent => { console.log(msgEvent); }, status: statusEvent => { if (statusEvent.category === "PNNetworkUpCategory") { this.pubnub.reconnect(); }}}; Doesn't work for me. full code: this.pubnub = new PubNub({ subscribeKey: this.serverDetails.authInfo.subscribeKey,

问题 I have a web chat client that is not reconnecting to pubnub when event PNNetworkUpCategory is detected. SAChat.prototype.start = function() { var _this = this; this.pubnub.addListener({ status: function (statusEvent) { if (statusEvent.category === "PNNetworkUpCategory") { console.log('PNNetworkUpCategory: SDK detected that network is online.' ) _this.pubnub.reconnect(); ... Anybody any idea why the client is not appearing again in the channel? 回答1: I'd like to help you resolve this one :) Few

问题 I have a Pubnub instance, I want to know how to handle reconnection when internet does down and comes back up with like a given number of retries? The documentation definitely gives the appropriate docs but I am unable to put it into code. Help would be greatly appreciated. my code: this.pubnub = new PubNub({ subscribeKey: this.serverDetails.authInfo.subscribeKey, authKey: this.serverDetails.authInfo.authKey, uuid, restore: true, ssl: true }); this.listeners = { message: msgEvent => { console

问题 I have a Pubnub instance, I want to know how to handle reconnection when internet does down and comes back up with like a given number of retries? The documentation definitely gives the appropriate docs but I am unable to put it into code. Help would be greatly appreciated. my code: this.pubnub = new PubNub({ subscribeKey: this.serverDetails.authInfo.subscribeKey, authKey: this.serverDetails.authInfo.authKey, uuid, restore: true, ssl: true }); this.listeners = { message: msgEvent => { console

问题 I've been trying to parse this JSON message from PubNub without any luck: type PubNubMessage struct { body []string } [[{"text":"hey"}],"1231212412423235","channelName"] json: cannot unmarshal array into Go value of type main.PubNubMessage Does anyone have an idea on how to decode such complex types in golang? 回答1: The short answer is that you cannot directly unmarshal a JSON array of non-homogenous types (per your example) into a golang struct. The long answer is that you should define an (m

问题 I got time token like this from 14512768065185892 from PubNub.I need to convert this time token into following format dd/mm/yy . Any one please provide one method to convert time stamp to date format. Thanks In Advance 回答1: The Date constructor can be passed a time value that is milliseconds since the epoch (1970-01-01T00:00:00Z). The value you have seems to have 4 digits too many, so just divide by 1e4 (or whatever value is appropriate): var timeValue = 14512768065185892; document.write(new