v 13.0 Third Party 1480
Download for 13.0 series Deploy on Odoo.sh
Required Apps Point of Sale (point_of_sale)
Inventory (stock)
Invoicing (account)
Technical Name pos_longpolling
LicenseSee License tab
Websitehttps://apps.odoo.com/apps/modules/13.0/pos_longpolling/
Also available in version v 13.0 v 12.0 v 11.0 v 10.0 v 9.0 v 8.0
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POS: Longpolling support

Technical module to implement instant updates in POS

Debugging

If you need to see longpolling requests at browser's Network tool, be sure that you don't have other opened tab to the same address. Otherwise, odoo smartly sends longpolling requests via one of existing tabs only and pass result via localStorage.

Credits

Contributors

Sponsors

Maintainers

Further information

Demo: http://runbot.it-projects.info/demo/pos-addons/13.0

HTML Description: https://apps.odoo.com/apps/modules/13.0/pos_longpolling/

Usage instructions: doc/index.rst

Changelog: doc/changelog.rst

Tested on Odoo 13.0 cdfa415829fa06f2860d65054fd8534180c8526a

POS: Longpolling support

Longpolling

Check following resources about activating longpolling:

In short, you need to start server with non-zero workers parameter::

openerp-server --workers=2 ...

and configure nginx:

location /longpolling {
    proxy_pass http://127.0.0.1:8072;
}
location / {
    proxy_pass http://127.0.0.1:8069;
}

PgBouncer

If you use PgBouncer or something similar, be sure that LISTEN/NOTIFY features are supported. For PgBouncer it means that you have to use Session pooling

Database connections limit

It's highly recommended to check odoo and postgresql settings about connections limits. In short, it must satisfy following condition:

(1 + workers + max_cron_threads) * db_maxconn < max_connections

Where max_connections is postgresql setting and the rest are from odoo.

Usage

Status Icons

Longpolling Icon:

  • Red - There is no connection to the server. Offline mode
  • Orange - There is a connection to the server, but we haven't received a response from polling yet
  • Green - Online
  • Rotating - Connection is updating

To manually reestablish connection or to check its presence click on the longpolling icon.

Wi-Fi Icon:

Shows the correctness of the order sending to the server

  • Red - There are some unsent paid orders.
  • Green - All paid orders were sent.

Wi-Fi sign can be reestablished only manually, or after the one another order is paid. If it is red make sure that the internet connection is on and click on the icon to send orders before turning off the device in order to prevent data loss. If internet connection is present but orders are not sending, it could mean that the error has occurred.

The MIT License (MIT)

Copyright 2020 IT-Projects Labs
Copyright 2015-2020 IT-Projects LLC
Copyright 2014-2015 Ivan Yelizariev

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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