Topic: JS API: Will it work in nodejs?
Hello! I need to write simple utility to export all messages from all objects to files. Have you tried your JS API (wialon.js) in nodejs environment? Does it work? Thanks!
1
06/10/2014 21:33:29JS API: Will it work in nodejs?
(edited by sergej.shirokov 06/10/2014 21:34:12)
- sergej.shirokov
- Gurtam Partner
- Offline
2
07/10/2014 09:37:39JS API: Will it work in nodejs?
Re: JS API: Will it work in nodejs?
Hi
Check this repo. It contains wialon.js build for Node.js
Its quite old, but i think its enough for your purposes
3
07/10/2014 23:31:56JS API: Will it work in nodejs?
- sergej.shirokov
- Gurtam Partner
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Re: JS API: Will it work in nodejs?
Thanks! - it works at least with login, getting units and following logout. The only problem I currently have is that node.exe never finished. So my question, is it possible to somehow un-initialize the session? Even after calling "session.logout" NodeJS still thinks that there is deffered/asynchronous action to be done. Any timers?
4
08/10/2014 09:44:24JS API: Will it work in nodejs?
Re: JS API: Will it work in nodejs?
Difficult to answer without code. As any Linux user i think that problem in Windows 
In any case you can follow Node.js documentation and execute
process.exit(0);Also you can provide problematic code and i'll try to debug it and help asap
5
08/10/2014 13:17:02JS API: Will it work in nodejs?
- sergej.shirokov
- Gurtam Partner
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Re: JS API: Will it work in nodejs?
The code exactly the same as you pointed (the repo), plus I've tried to add logout as well.
6
08/10/2014 14:53:12JS API: Will it work in nodejs?
Re: JS API: Will it work in nodejs?
I checked repo more precisely. Following code works if you're going exec program time-to-time
wialon.core.Session.getInstance().login("wialon_test", "test", "", function() {
var user = wialon.core.Session.getInstance().getCurrUser();
console.log('Login:', user.getName());
wialon.core.Session.getInstance().logout(function (code) {
if (code === 0) {
console.log('Logout');
process.exit(0);
}
});
});
7
08/10/2014 21:25:54JS API: Will it work in nodejs?
- sergej.shirokov
- Gurtam Partner
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Re: JS API: Will it work in nodejs?
Surely process.exit() works, but then I encounter with following : https://github.com/joyent/node/issues/8329 (which is not only Windows issue). Will be better if you find the root cause, namely why nodejs with wialon continues to run. I have just reproduced this on lubuntu 14.04 as well.
8
09/10/2014 10:41:41JS API: Will it work in nodejs?
Re: JS API: Will it work in nodejs?
I thought a little more and realized that Wialon SDK should not exit after logout in common case. Simple example: login-logout in loop for several users - program should not exit after first iteration.
From other side, console.log issue that you mentioned almost unreachable in production - you'll rather store data to a file, not to console.
Also you can code your task using Node.js without any SDK, here is sample
And even more there are number of different languages repos that helps work with Wialon, you can try one of them for your task
9
09/10/2014 16:54:33JS API: Will it work in nodejs?
- sergej.shirokov
- Gurtam Partner
- Offline
Re: JS API: Will it work in nodejs?
Thanks for the tips about different languages, but I've already invested so many hours to learn Wialon JS API so I won't change horses as the crossing.
10
05/03/2017 17:42:34JS API: Will it work in nodejs?
Re: JS API: Will it work in nodejs?
Обновленного wialon.js для nodejs не появилось? В репах npm модуль для remote api 2 летней давности, он актуален?
11
06/03/2017 10:14:18JS API: Will it work in nodejs?
Re: JS API: Will it work in nodejs?
i.zubakin
Официальной библиотеки для nodejs нет и не планируется
Для большинства задач для работы с RemoteAPI хватает стандартного модуля request. Например, вот так
const request = require('request');
const token = 'AUTH TOKEN HERE';
var SID = '';
/** Perform Remote API request
*/
var remoteApi = function(svc, params, cb) {
params = params || {};
var form = {
svc: svc,
params: JSON.stringify(params)
};
if (SID) {
form.sid = SID;
}
request.post({
url: 'https://hst-api.wialon.com/wialon/ajax.html',
json: true,
form: form
}, cb);
};
// login
remoteApi('token/login', {token: token}, function(error, response, body) {
console.log('token/login', body);
if (body.eid) {
SID = body.eid;
// get current account details
remoteApi('core/get_account_data', {type: 1}, function(error, response, body) {
console.log('core/get_account_data', body);
// logout
remoteApi('core/logout', {}, function(error, response, body) {
SID = '';
console.log('core/logout', body);
});
});
}
});