Receipt Printer with JavaScript
Wes unveils his Hack-Week project —a thermal printer controlled by JavaScript that prints out Sentry.io errors in real-time. Scott and Wes dive into the nitty-gritty of how it works, from the ESC/POS protocol to tackling socket issues, and whether the project was worth the effort.
Show Notes
00:00 Welcome to Syntax!
00:38 Brought to you by Sentry.io.
01:10 What is Hack Week?
01:41 The project.
02:40 Why a receipt printer?
03:55 How do these printers work?
05:20 Communicating with the printer.
07:24 ESC/POS Encoder.
08:42 Socket issues.
09:56 Using Transformers.js to stop 'toxic comments'.
10:48 Back to socket issues.
12:18 Integrating with Sentry.
15:01 Printing images with Playwright.
16:17 Was it worth it?
All links available at https://syntax.fm/822
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Wes: / wesbos
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#webdevelopment #webdeveloper #javascript
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