Need help with homeyscript

Developers
1

I need to create a base64 encoded timestamp, and chatgpt made the following:

function base64EncodedTimestamp() {
  // Get the current Unix timestamp (epoch) in seconds
  const unixTimestamp = Math.floor(Date.now() / 1000);

  // Convert the Unix timestamp to a Base64-encoded string
  const base64EncodedString = btoa(String.fromCharCode(...new Uint8Array(new ArrayBuffer(4)).fill(unixTimestamp >> 0).reverse()));

  return base64EncodedString;
}
  1. Will this work with homeyscript?
  2. How can I set a local variable in the flow with either return value or set from the script?
2

Have you tried?

3

I was at work, so not yet. I will, though :wink: I admit to probably have been a bit too quick to ask once I finally cracked the dynamic api key and was hoping to get a quick answer to if this would even work with homeyscript…

4

…and no, btoa isn’t a function. So I need to find a way to base64 encode something in homeyscript. Will now begin to tear the script apart to see if there are more things missing.

5 
buffer.toString('base64')

More importantly though, what does “a base64 encoded timestamp” actually mean?

6

“buffer” doesn’t seem to be a recognized keyword in the homeyscript editor…?..

A base64 encoded timestamp is the unix time encoded with base64. Not sure how to describe it in any other way…

7

@robertklep Thanks! A little hacking and googling, this seems to work :slight_smile:

// Get the current Unix timestamp (epoch) in seconds

const unixTimestamp = Math.floor(Date.now() / 1000);

//console.log(unixTimestamp);

//console.log("Encoded string: "+ Buffer.from(unixTimestamp.toString()).toString('Base64'));

//console.log("Decoded string: ", decodedString);

return Buffer.from(unixTimestamp.toString()).toString('Base64');

Now, back to the search function for the rest of my query :slight_smile:

8

I meant “if you have a buffer containing the data that needs to be Base64-encoded, this is how you do it”.

So like this?

Buffer.from(String(Date.now() / 1000)).toString('base64')
9

Yes, your shorthand should be better than mine :slight_smile: