Monthly Archives: Juli 2019

VerneMQ MQTT connection lost (8): AMQJS0008I Socket closed. different mountpoints

In my setup, I am rewriting the mountpoints of clients from the ones set up by the listeners to individual mountpoints depending on client group.The idea behind this is perfect isolation of multi-tenancy on the server. Individual clients from different groups thus are not able to see each other, even when subscribing to “#” (everything). [...]

By | Juli 28th, 2019|VerneMQ|Kommentare deaktiviert für VerneMQ MQTT connection lost (8): AMQJS0008I Socket closed. different mountpoints

Shopify & Langify modify checkout link

Shopify checkout is multilingualThe shopify checkout is multilingual:The trick is to have a &locale=en or &locale=en at the end of the link:You can therefore create buttons, etc. which take your user to the checkout, under the links ofhttps://buyzero.de/checkout?locale=dehttps://buyzero.de/checkout?locale=enwhich will set the locale to the appropriate language.(replace buyzero.de by your domain).Shopify LiquidLiquid is the Shopify template [...]

By | Juli 21st, 2019|Development|Kommentare deaktiviert für Shopify & Langify modify checkout link

Booting Alpine Linux on the Raspberry Pi Compute Module

In our project for a client we are using the Raspberry Pi Compute Module, along with a custom compute module carrier board (called the PCCB – Pi Control Carrier Board) which provides RS485, CAN, RS232, LAN, USB and a step-down for input voltages of 6 – 24 V. (If you are interested in customized hardware [...]

By | Juli 7th, 2019|Alpine Linux, Raspberry Pi Embedded Development|Kommentare deaktiviert für Booting Alpine Linux on the Raspberry Pi Compute Module

Debugging File upload / multipart upload and other HTTP requests

Sometimes you want to see the request as it is received by the server, without any handling / obscuring of the original request.For instance, to see whether different browsers handle file uploads differently. On the other hand, you do not want to write up your own mockup server, just to handle these requests, or install [...]

By | Juli 1st, 2019|Development|Kommentare deaktiviert für Debugging File upload / multipart upload and other HTTP requests