LiveCode Forums.

Hello,
Each HMAC step must use the binary output of the previous step, not hex.

Example (signing key chain):

put "AWS4" & tSecretKey into tKey
put hash(tDate, tKey, "SHA256") into tDateKey
put hash(tRegion, tDateKey, "SHA256") into tRegionKey
put hash("s3", tRegionKey, "SHA256") into tServiceKey ...

I would suggest setting a breakpoint and inspecting what is in your array. Then you'll see the structure of the array created:
Screenshot 2025-08-18 at 10. 46. 20. png
Instead of tDataArray["email"], you need to reference this as tDataArray["data"][1]["email"]


Thanks for your suggestion. I got ...

Hello, you’re getting that error because tsNet is treating the connection as HTTP, but your device is returning raw TCP text (ACK + CRCR) — not an HTTP response. You do not need to send headers. Instead of tsNetCustom, use raw socket mode:
- tsNetOpen
- tsNetWrite
- Handle "data" in the callback ...

Hello,
How can I stop the application from proceeding until a field contains a minimum number of characters? I’m at the end of a kiosk workflow where patients swipe their cards, and I need the script to remain idle until the required data has been entered.

Hello,
I'm trying to create a simple mobile app that queries an API and parses the response to display certain values.

The mobile has 2 fields viz:
1. Button to query the api
2. Large text box to display the contents

In my livecode stack, I've the following inclusions:
1. JSON Library
2. mergJSON ...