I am currently developing a dapp and I am integrating walletconnect.
I use this code for connecting:
const chainId = ContractService.getPreferredChainId();
const rpc = ContractService.getRpcAddress();
provider = new WalletConnectProvider({
infuraId: undefined,
rpc: {
[chainId]: rpc,
},
});
await provider.enable();
chainId is dynamically chosen based on if the app is in development mode or not. while in development it runs on chain id 97.
RPC is the same story, it just gets the binance smart chain RPC JSON provider.
Connecting works well, but I get the following error:
Any idea on how I can fix this without making an infura account? Or is that required..
I found out what the problem was.
make sure to add a chainId to the object like this:
new WalletConnectProvider({
infuraId: undefined,
rpc: {
1: "https://RPC_URL",
},
chainId: 1
});
Then it should work without issues, you can even omit the infuraId field
Related
I am building a web app in a low code platform (Mendix). I am connecting the web app with ArcGIS online resources via the ArcGIS JavaScript API v4.19, which all goes pretty smoothely.
The challenge arises when I want to load specific secured ArcGIS online content via the ArcGIS JavaScript API, specifically from some FeatureLayers which are secured. I looked into the documentation and it seems the best way forward would be a so-called 'application login'. For this I want to setup an OAuth application login based on CLient ID and Client Secret. With these two I can get a valid token via AOuth and use that token to access the content by feeding the token to the IdentityManager via the JavaScript API.
This is were it goes wrong currently, I can't seem to figure out where to make it explicit on the ArcGIS online side that this specific secured FeatureLayer can be accessed via this application login, hence currently I am getting errors that the valid token and app id don't have access to the resource, being the end-point of the secured FeatureLayer.
Does anybody know how to associate a secured FeatureLayer in ArcGIS online to a application login?
EDIT 10-6-2021: Added code sample
After succesfully retrieving a valid token on the server side based on client id and client secret I use the client ID (=AppID) and token in the ArcGIS JavaScript API like below:
const token = {
server: "http://www.arcgis.com",
userId: <AppID>,
token:
<valid token retrieved via OAuth generateToken request,
ssl: true,
expires: 7200
};
IdentityManager.registerToken(token);
Only implementing this gives me an error whilst trying to access the secured feature layer:
identity-manager:not-authorized. "You are currently signed in as:
AppID. You do not have access to this resource:
https://server/someid/arcgis/rest/services/somefeatureserver/FeatureServer/0
I also read that sometimes below could be needed so added as well:
const idString = JSON.stringify(IdentityManager.toJSON());
console.debug("idString: " + idString);
IdentityManager.initialize(idString);
This resolves the error but makes a login popup appear again.
The layer is afterwards declared like below:
const layer = new FeatureLayer({
// URL to the service
url: layerObj.layerURLStatic
definitionExpression: queryDefinition,
featureReduction: clusterConfig && { type: "cluster" },
popupTemplate: {
title: "{" + inAttributeTitle + "}",
content: [
{
type: "fields", // FieldsContentElement
fieldInfos
}
],
actions: [
{
title: props.intButtonLabel,
id: btnId,
className: props.intButtonClass + intButtonIconClass,
type: "button"
}
]
},
outFields: ["*"]
});
webMap.add(layer);
Here is a snippet to generate the token and then register it with IdentityManager:
IdentityManager = require('esri/identity/IdentityManager')
function login(user, password){
var serverInfo = {
"server": "https://www.arcgis.com",
"tokenServiceUrl" : "https://www.arcgis.com/sharing/generateToken"
};
var userInfo = {
username : user,
password : password
}
IdentityManager.generateToken(serverInfo, userInfo).then(function (response){
response.server = serverInfo.server;
response.userId = user;
IdentityManager.registerToken(response);
});
}
I'm not sure how you are going to fit this in you app, but the sample should work if you paste it in your developer tools console when the app is running.
Also, it seems to me that userId property is for arcgis online username, not for appId.
As pointed out by Shaked, if you append '?token=[token_value]' int the layer URL you probably don't even need to register the token to query the layer.
I just implemented my first backend file where I fetch some user data, messages and so on.
Now I wanted to include error handling if there is no network available.
I don´t know if I did it right but this was my approach so far:
import axios from 'axios'
const host = process.env.VUE_APP_URL
export default {
person: async function (currentPerson) {
let params = {
currentPerson: localStorage.getItem("person"),
};
if (user) {
params['currentPerson'] = currentPerson;
}
return axios.get(`${host}/api/currentPerson`, {
params: params
})
//catching network errors
.catch (error => {
if (error.response) {
/*
* The request was made and the server responded with a
4xx/5xx error
*/
console.log(error.response.data);
console.log(error.response.status);
console.log(error.response.headers);
} else if (error.request) {
/*
* The request was made but no response was received
*/
console.log(error.request);
} else {
// Something happened in setting up the request and triggered an Error
console.log('Error', error.message);
}
console.log(error)
});
},
In my mounted() function of my main view I fetch the data from my backend file from above:
backend.matches().then(function (response) {
self.contacts = response.data.persons;
});
I tried to check in console if it is working but all I get is the following:
In the catch block I check for
response errors: like 4xx/5xx
request errors: if my network not responding in time
and any other errors
Would this be the right approach to check if a network is available or not? Or does it degrade the user experience when the user checks the error?
My backend file includes more methods.. do I have to write for each method these kind of requests?
In your backend file you don't react whether there is a network connection or not I think.
And only for reference: that is not the backend, but communicates with the backend - the backend is the part of your code what you communicate with, e.g. Laravel code, an API, ...
Try adding the following at the beginning of your catch part:
if (!error.response) {
//network error
console.log('No network connection');
} else if (error.response) {
//the rest of your code
This should print out No network connection in your console.
Run your application, turn off the internet connection and check the console.
These kind of code should always be located in your backend part.
My answer maybe different from your question.
When i create a .net core API with Angular i used three things to check is there network or not?
subscribe to windows's offline/online event
create signalR hub from layout component to API server
API request failed (it means lot of incident, but if 1. or 2. case is true i know what cause 3. case
I have created a simple express server and added a /slack/receive route to handle webhook requests from the Slack events API:
// routes.js (which is used by my app defined in server.js)
...
let slack = require('./controllers/slack');
router.post('/slack/receive', slack.receive);
...
I then use Botkit to create a simple Slack application:
// controllers/slack.js
'use strict';
const logger = require('../config/winston');
// initialise firebase storage for botkit
const admin = require('firebase-admin');
var serviceAccount = require('../config/firebase.json');
admin.initializeApp({
credential: admin.credential.cert(serviceAccount)
});
var db = admin.firestore();
db.settings({
timestampsInSnapshots: true
})
// initialise botkit for slack
const botkit = require('botkit');
const controller = botkit.slackbot({
storage: require('botkit-storage-firestore')({ database: db }),
clientId: process.env.SLACK_CLIENT_ID,
clientSecret: process.env.SLACK_CLIENT_SECRET,
clientSigningSecret: process.env.SLACK_SIGNING_SECRET,
redirectUri: process.env.SLACK_REDIRECT,
disable_startup_messages: true,
send_via_rtm: false,
debug: true,
scopes: ['bot', 'chat:write:bot'],
})
controller.hears('Hello', 'direct_mention,direct_message', (bot, message) => {
logger.info(message);
bot.reply(message, 'I heard a message!');
})
exports.receive = (req, res, next) => {
res.sendStatus(200);
logger.debug(req.body);
controller.handleWebhookPayload(req, res);
};
The server initialises correctly, but as soon as the slack webhook receives a request the following error happens:
Could not load team while processing webhook: Error: could not find team T5VDRMWKX
at E:\Documents\upper-revolutions\node_modules\botkit\lib\SlackBot.js:169:24
at firebaseRef.doc.get.then.catch.err (E:\Documents\upper-revolutions\node_modules\botkit-storage-firestore\src\index.js:86:13)
at <anonymous>
at process._tickCallback (internal/process/next_tick.js:118:7)
So far I have found that:
Having/not having storage in the botkit slackbot makes no difference
The error happens within the handleWebhookPayload method as code within controller.hears() does not get executed
This error occurs because botkit needs some form of storage where it can store all the teams (channels and users too) and retrive it later on.
So, When your method handleWebhookPayload gets executed it calls another method called
findAppropriateTeam that will query for the specified team record in the storage provided by you (It might be mongoDB or a JSON file or other). The error is saying that you do not have any record in the storage with the id provided.
So this might implicate two things:
You did not provide a storage for botkit to work
You did not save the team id in the storage
The solution to the first problem is quite simple. You just need to install mongodb in your machine and then pass to botkit the MONGO_URL.
NOTE: I see that you are using the botkit simple storage and this might be the problem since I also have experieced some troubles with this kind of storage not saving records.
const controller = botkit.slackbot({
storage: 'mongodb//localhost:27017:/yourdb',
})
//OR
const controller = botkit.slackbot({
storage: process.env.MONGO_URL,
})
The possible solution to the second problem:
I will assume you are using botkit locally, so you must be using some tunneling like ngrok or localtunnel. In that case make sure:
You provided the redirect URL to Slack (Ex, https://your_url/oauth)
You accessed the https://your_url/login page
Botkit saves your team id on the provided storage when you access the /login route and authorizes the app. So if you skipped that part then botkit won't save your team id and therfore will throw an error when you receive events later on.
Check this like [https://github.com/howdyai/botkit/issues/938] for discutions on the topic
I hope this helps!
I'm trying to run MFP8's push sample app of GitHub. But MFPPush.registerDevice method failed and error message "Failed to register device:" was shown.
function registerDevice() {
WLAuthorizationManager.obtainAccessToken("push.mobileclient").then(
MFPPush.registerDevice(
null,
function(successResponse) {
navigator.notification.alert("Successfully registered");
enableButtons();
},
function(failureResponse) {
navigator.notification.alert("Failed to register");
console.log("Failed to register device:" +
JSON.stringify(failureResponse));
}
)
);
}
I read the MFP8 document and found the note below.
Note: Authenticated notifications are currently not supported in Cordova applications due to a defect. However a workaround is provided: each MFPPush API call can be wrapped by WLAuthorizationManager.obtainAccessToken("push.mobileclient").then( ... );. The provided sample application uses this workround.
The sample code is wrapped by WLAuthorizationManager.obtainAccessToken indeed. But I think MFPPush.registerDevice may be called before 'obtainAccessToken' completes because return value of MFPPush.registerDevice's method is specified as Promise.then() parameter instead of function that call MFPPush.registerDevice.
So I think the sample should be written as bellow,
function registerDevice() {
WLAuthorizationManager.obtainAccessToken("push.mobileclient").then(
function() {
MFPPush.registerDevice(
null,
function(successResponse) {
navigator.notification.alert("Successfully registered");
enableButtons();
},
function(failureResponse) {
navigator.notification.alert("Failed to register");
console.log("Failed to register device:" +
JSON.stringify(failureResponse));
}
)
);
}
}
Could anyone give me some advice about that?
There is additional information. In device log these messages were logged.
Of course, I registered UserLogin security check to MobileFirst Server and UserLogin challengeHandler is created in UserLoginChallengeHandler.js
(I have not changed except bundleId)
2018-02-10 19:42:47.271015+0900 PushNotificationsCordova[1273:1500711] Failed to register device:"Error Domain=com.ibm.mfp.push Code=5 \"Error authenticating client. Error is 'Challenge handler does not exist. There is no registered challenge handler with key UserLogin'.\" UserInfo={networkMetadata={\n \"$bytesSent\" = 120;\n \"$category\" = network;\n \"$outboundTimestamp\" = 1518259366869;\n \"$path\" = \"http://192.168.0.105:9080/mfp/api/preauth/v1/preauthorize\";\n \"$requestMethod\" = POST;\n \"$trackingid\" = \"F8FD4A96-B046-4DAD-87F6-7441E8426C2E\";\n}, NSLocalizedDescription=Error authenticating client. Error is 'Challenge handler does not exist. There is no registered challenge handler with key UserLogin'.}"
So my GCM push message works if I use this test link
http://www.androidbegin.com/tutorial/gcm.html
Here's the response
{ "multicast_id":7724943165862866717,
"success":1,
"failure":0,
"canonical_ids":0,
"results":[{"message_id":"0:1418649384921891% 7fd2b314f9fd7ecd"}]}
However if I push using my own service using node push service using the toothlessgear/node-gcm lib
https://github.com/ToothlessGear/node-gcm I get a success message on the server but no msg makes it to the client
{ multicast_id: 5130374164465991000,
success: 1,
failure: 0,
canonical_ids: 0,
results: [ { message_id: '0:1418649238305331%7fd2b3145bca2e79' } ] }
I also tried the same message using pushwoosh and push woosh doesn't work either. How come I'm getting a success message on the server, but no push is received on the client on the latter two services. Is there some sort of ip configuration that I need to do, or some sort of certificate? I've used the same google api server key which is open to all ips on all 3 of these services.
Why does the response show success on the latter but no msg gets received on the client?
Node service server side code
var gcm = require('node-gcm');
// create a message with default values
var message = new gcm.Message();
// or with object values
var message = new gcm.Message({
collapseKey: 'demo',
delayWhileIdle: true,
timeToLive: 3,
data: {
key1: 'message1',
key2: 'message2'
}
});
var sender = new gcm.Sender('insert Google Server API Key here');
var registrationIds = ['regId1'];
/**
* Params: message-literal, registrationIds-array, No. of retries, callback-function
**/
sender.send(message, registrationIds, 4, function (err, result) {
console.log(result);
});
So the pushes were correctly being sent, my issue was with the cordova plugin on the client which requires that the android payload for "message" or "title" be set. The sample php just coincidentally was setting the message property and that's why it worked.
Updating the code to add the following to the data
data: {message:'test'}
works correctly