I made a function which is called at a certain time (using node-cron : this below function is the callback)
When the socket is active it works perfectly.
Howerver, I got an error following this way :
I disconnect the socket then I reconnect(that is what I want to implement), the readyState is always at 1, but during the execution of this function, it goes on 3 and I don't know why.
After the execution, readySate reaches 1 again.
the code is below :
distribution: async (data, ws) => {
console.log(("appel à distribution"));
console.log(ws.readyState);
var g = await gamelle.findOne({ id: data.id });
if (g.historique.length == 0) lastId = 0;
else lastId = parseInt(g.historique[g.historique.length - 1].id);
await gamelle.updateOne({ id: data.id }, { $push: { historique: { id: ++lastId, heure: data.heure, poids: data.poids } } }); //FIXME: ne fonctionne pas
ws.send(JSON.stringify({
action: "manger",
poids: data.poids
}), (e) => console.log(e));
}
Do you know what is the problem ?
Related
I'm learning how to use Sequelize to persist data to a MySql database from a NodeJS application. The following script is my attempt to insert data into a table which has some records in it.
The issue is I am attempting to debug the script in various locations using console.log but I get no output.
const db = require('../engage/db');
conn = db.conn
function init() {
const Reductions = conn.sequelize.define('Reductions', {
pid : {
type: conn.Sequelize.DataTypes.INTEGER,
allowNull: false,
primaryKey: true,
},
code : {
type: conn.Sequelize.STRING
},
duration : {
type: conn.Sequelize.DataTypes.INTEGER
}
});
return Reductions
}
async function insert(p) {
console.log('Testing # insert() entrance : ', p)
let table = await init(conn.sequelize, conn.Sequelize)
// conn.sequelize.sync({force:true}).then( async () => {
conn.sequelize.sync().then( async () => {
conn.sequelize.query('SELECT * FROM Reductions WHERE pid = :pid',{
replacements: {pid : p.id},
type: conn.Sequelize.QueryTypes.SELECT,
}).then((data) => {
console.log('TESTING DATA: ', data)
return data
}).then((results) => {
console.log('Checking results: ', results)
})
}).finally(() => {
console.log('Reductions update complete')
})
}
module.exports = { init, insert }
I an performing an SQL search and chaining .then() functions to debug the output.
But my problem is non of the console.log calls in the insert function are responding except for the first one.
I am very certain the required data is in the Reductions table of the database but even if it is not, the console.log in the finally section does not output either.
How can I understand and resolve why the console.logs are not printing?
Update
Insert function call code, as requested.
.
.
.
properties.forEach(async(property) => {
if( property.reduced !== false ) {
await reductions.insert(property)
} else {
uninvestibles += 1
}
})
.
.
.
Special thanks to Rinkesh P for helping me find the answer to my problem.
Apparently the foreach loop does not wait for promises to resolve. So my await related code wouldn't execute as intended. Not so sure why and curiously my foreach solution had been working.
But apparently, foreach loops should not be used with asynchronous code. So I refactored my foreach into the following for loop:
for (let index = 0; index < properties.length; index++) {
if( properties[index].reduced !== false ) {
await reductions.insert(properties[index], location)
} else {
uninvestibles += 1
}
}
That got my code working again.
I'm trying to prevent the user to save a piece if it doesn't achieve some requirements.
Currently I'm doing it like this:
self.beforeSave = function(req, piece, options, callback) {
let success = true;
let error = "";
if (Array.isArray(piece._subevents) && piece._subevents.length) {
success = self.checkDateAndTimeCompabilitiyWithChildren(piece);
}
if (!success) {
self.apos.notify(req, "Check the compatibility between parent event and subevents", { type: "error" });
error = "Subevents are not compatible with parent event";
}
callback(error);
};
This works but the problem is it shows 2 errors notifications (the default and my custom), 1 because of callback(error) and 1 because of apos.notify.
Any idea how to stop the item of being saved and only show my notification?
Thanks in advance.
UPDATE 1:
As Tom pointed out, my code looks like this now:
// lib/modules/events/public/js/editor-modal.js
apos.define('events-editor-modal', {
extend: 'apostrophe-pieces-editor-modal',
construct: function(self, options) {
self.getErrorMessage = function(err) {
if (err === 'incompatible') {
apos.notify('A message suitable for this case.', { type: 'error' });
} else {
apos.notify('A generic error message.', { type: 'error' });
}
};
}
});
// lib/modules/events/index.js
var superPushAssets = self.pushAssets;
self.pushAssets = function() {
superPushAssets();
self.pushAsset("script", "editor-modal", { when: "user" });
};
self.beforeSave = async function(req, piece, options, callback) {
return callback("incompatible")
};
For testing purposes I'm just returning the error in beforeSave. The problem is that an exception is being thrown in the browser console and the modal is not properly rendered again. Here's a screenshot about what I'm talking:
I'm trying to debug it and understand what's happening but no clue yet.
In your server-side code:
self.beforeSave = function(req, piece, options, callback) {
let success = true;
if (Array.isArray(piece._subevents) && piece._subevents.length) {
success = self.checkDateAndTimeCompabilitiyWithChildren(piece);
}
if (!success) {
return callback('incompatible');
}
return callback(null);
};
And on the browser side:
// in lib/modules/my-pieces-module/public/js/editor-modal.js
apos.define('my-pieces-module-editor-modal', {
extend: 'apostrophe-pieces-editor-modal',
construct: function(self, options) {
self.getErrorMessage = function(err) {
if (err === 'incompatible') {
return 'A message suitable for this case.';
} else {
return 'A generic error message.';
}
};
}
});
If the error reported by the callback is a string, it is passed to the browser. The browser can then recognize that case and handle it specially. 'my-pieces-module-editor-modal' should be substituted with the name of your pieces module followed by -editor-modal.
I am work with isntagram api in node js. i have one array and in the array store above 20k up instagram id. and then i am do foreach on that array and one by one take instagram id and go for the take bio but that time i am getting error like this RequestsLimitError: You just made too many request to instagram API. i am try every 5 call after set time out also but still i am getting same error so how can resolved this error any one know how can fix it then please let me know.
Here this is my code =>
var InstaId = ["12345687",20k more id store here in the array]
var changesessionFlage = 0;
async.each(InstaId, function (id, callback) {
async.parallel([
function (cb) {
if (id) {
setTimeout(function () {
Client.Account.getById(sess, id).then(function (bio) {
console.log("changesessionFlage" + changesessionFlage);
changesessionFlage++
//console.log("bio : ", bio._params); // here i am getting bio one by one user
if (changesessionFlage == 6) {
changesessionFlage = 0;
}
cb(null, bio._params);
})
.catch(function (err) {
console.log("get boi: ", err)
cb(null, bio._params);
})
}, (changesessionFlage == 5) ? 10000 : 0)
}
}
], function (err, results) {
if (err) {
console.log(err);
return;
}
Result = results
callback();
});
}, function (err) {
if (err) {
console.log(err);
return;
}
else {
console.log("Result=>", Result)
if (Result) {
console.log("Result[0]=>", Result[0])
var ws = XLSX.utils.json_to_sheet(Result[0]);
var wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "People");
var wbout = XLSX.write(wb, { bookType: 'xlsx', type: 'binary' });
res.end(wbout, 'binary');
}
}
});
any one know how can fix this issue then please help me.
Your setTimeout is use incorrectly, all API calls are made at once after 10000 delay.
Since this is a one time job, just split the 20K usernames to 4K batches and execute them every hour. This way you will be under the 5k/hr API limit
I got this error: Falsy value for recipient key 'registrationTokens' while working with gcm push notifications.
Below you can find my code:
Device.find({ user: { $in: users }}, function (err, devices) {
if (err) {
logger.error('500 ' + err)
return res.status(500).json({
code: config.errorCode.status500.code,
message: config.errorCode.status500.message
})
}
var androidRegTokens = []
var iOSReqTokens = []
for (var i = 0; i < devices.length; i++) {
if (devices[i].platform == 'Android') {
androidRegTokens.push(devices[i].deviceToken)
} else {
iOSReqTokens.push(devices[i].deviceToken)
}
}
if (androidRegTokens.length > 0) {
gcmPush('Notification is sent.', androidRegTokens)
}
if (iOSReqTokens.length > 0) {
apnsPush('Notification is sent.', iOSReqTokens)
}
return res.json({ msg: 'Operation succeed.'})
})
Body of the function gcmPush('Notification is sent.', androidRegTokens) is:
this.sender.send(message, { registrationTokens: deviceTokens }, function (err, response) {
if (err) {
console.error(err)
}else {
console.log(response)
}
})
Does anyone know what wrong is with my code? At first push notifications worked perfect, than this error occured each time I call the service.
EDIT:
I have solved this thanx to Luiz Fernando. The problem is the function:
gcmPush('Notification is sent.', androidRegTokens)
I have forgot to add title which is part of the constructor:
function GcmPush (title, message, deviceTokens) {
this.sender = new gcm.Sender(config.gcmSender)
this.sendPushNotification(title, message, deviceTokens)
}
The deviceTokens object is a falsy value, it can be: null, undefined, 0, '', NaN,false.
Maybe it happend because you are filling iOSReqTokens and androidRegTokens nested in an asynchronous operation (it seems Device.find is async). So, the callback of Device.find and the for-loop happens in different times. Probably, the for-loop is happening AFTER the response, so this response will be undefined (and really is).
So, you need to use some async control flow library, such Promise or Async and ensure the correct order of operations.
Also, where you use the pushed registrations?
I tried to copy several file with node js.
Here is my an example of what i'm trying to do :
var request = require('request');
va photos [{ 'url': 'http://xxxx.com/im1', 'name' : 'name1' }, { 'url': 'http://xxxx.com/im12', 'name' : 'name2' },
for (var i = 0; i < photos.length; i++) {
request(photos[i].source).pipe(fs.createWriteStream(photos[i].name));
}
After maybe 1000 call i have a socket hang out error.
Following #Timothy Strimple advice i decided to use async module.
My code is now something like this :
async.whilst(function () { return !stop; },
function (callback) {
console.log("get next 20 image");
JM.api('/' + album.id + '/photos', { after: next }, function (resf) {
if (!resf || resf.error) {
console.log(!resf ? 'error occurred' : resf.error);
}
console.log("albums" + album.id + " " + resf.data.length + " dir" + dir);
async.eachSeries(resf.data, function (photo, done) {
request(photo.source).pipe(fs.createWriteStream(dir + "/" +photo.name));
console.log("copy of image " + img_basename);
}, function (err) {
if (err) {
console.log('An images failed to copy');
} else {
console.log('All 20 image have been copied successfully');
}
if (resf.paging && resf.paging.cursors) {
console.log("suite de l'album à venir");
next = resf.paging.cursors.after;
setTimeout(function () { callback(); }, 5000);
}
else {
console.log("Fin de l'album");
stop = true;
setTimeout(function () { callback(); }, 5000);
}
});
});
},
function (err) {
if (err) {
console.log('An images failed to process');
albumcallback();
} else {
console.log('All images in this group have been processed successfully');
albumcallback();
}
}
);// end while
I still having a crash after maybe 1 00 file copied. I'm sure that async.whilst and async.eachSeries are weel because my log show that each call is on series. But i have a crash. I temporary solved the proble by ading a wait after each copy like this :
request(photo.source).pipe(fs.createWriteStream(dir + "/" + img_basename));
console.log("copy of image " + img_basename);
setTimeout(function () { done(); }, 5000);
Is it a limit of request module ? How to change this fea line to make sure that each connection are closed before continung the program ?
You probably need to move to an asynchronous loop. Something like eachLimit from the async module would probably be ideal.
async.eachLimit(photos, 10, function(photo, done) {
var r = request(photos[i].source).pipe(fs.createWriteStream(photos[i].name));
r.on('finish', done);
}, function(err) {
// All images done or there was an error
});
Now it will process all the items in your photos list, but it will only process 10 of them concurrently. This will prevent it from spinning up hundreds or thousands of concurrent outgoing connections.
The request call and pipe call are asyncrhon. So i have to rewrite this line : request(photos[i].source).pipe(fs.createWriteStream(photos[i].name));
See here :
Downloading N number of remote files using Node.js synchronously