Transformations of MQTT messages

[Dim (Angelos)]

@kvoit

if I could manage to not hardcode the JSON fieldname …

I don’t see how you can avoid hardcoding this…

see another example of js transformation here:

[SOLVED] Need help with REGEX transformations in the sitemap

What you can do instead is use a JAVASCRIPT transform. You will need to write a bit of javascript code that do the transformation ** Install the JAVASCRIPT transformation** Create a file called title.js in the transform folder with the following contents: (function(jsonString) { var data = JSON.parse(jsonString); var title = data.title; var maxLength = 25; // Set-up here what max length you want your string to be if (title.length > maxLength) { title = title.substring(0, maxLength +1); }…