Converting long Spotify track IDs to standard format

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1

I’m working on a project that uses a library to interact with Spotify’s API. The library returns track IDs as 32-character hex strings (16 bytes). But I know Spotify’s official track IDs are supposed to be 22 characters long using only numbers and letters.

I’m not sure how to transform these longer IDs into the standard Spotify format. I’ve checked the documentation for both the library and similar projects, but I couldn’t find any information about this conversion.

Has anyone encountered this issue before? How can I convert these 32-character hex IDs to the official 22-character Spotify track IDs?

// Example of the long track ID we receive
const longTrackId = '1a2b3c4d5e6f7g8h9i0j1k2l3m4n5o6p';

// Example of the desired standard track ID
const standardTrackId = '1234567890abcdefghijkl';

// Function to convert the ID
const convertedId = convertTrackId(longTrackId);

Any suggestions or guidance would be greatly appreciated. Thanks!

2

I’ve dealt with this in a project before. The long ID is indeed a UUID, as SoaringEagle mentioned. To convert it, you’ll need to use base62 encoding. Here’s a brief outline of the process:

  1. Remove hyphens from the UUID if present
  2. Convert the hex string to a byte array
  3. Encode the byte array to base62
  4. Pad the result to 22 characters

You can implement this yourself or use existing libraries. The ‘base62’ npm package is quite reliable for this task. Remember to handle edge cases and potential errors in your conversion function.

If you’re still stuck, I can provide a code snippet demonstrating the conversion process.

3

yo, i think i can help. the long ID is actually a UUID. u gotta convert it to base62 then cut it down to 22 chars. theres a npm package called ‘base62’ that makes it easy. jus remember to remove hyphens first if there r any. hope that helps!

4

I’ve worked on a similar project recently and can share some insights. The long ID you’re seeing is indeed a UUID, which is a 128-bit identifier. To get the standard Spotify ID, you need to convert this UUID to base62 and then truncate it.

Here’s a high-level approach:

First, remove any hyphens from the UUID. Then, convert the hex string to a byte array. Next, use a base62 encoding algorithm on this byte array. Finally, take the first 22 characters of the result.

I found the ‘base62’ npm package quite useful for this task. It handles the tricky parts of the conversion process efficiently.

Remember to thoroughly test your conversion function with various input formats to ensure robustness. Also, consider caching the results if you’re dealing with a large number of conversions to improve performance.

If you need more specific implementation details, let me know and I can provide some code examples.

5

hey, i ran into this issuu before. the long id is a uuid.
convert it to base62 then trim the extra bits to get the standard spotify id.
check out some npm packages if u need more help. good luck!

6

Having worked with the Spotify API in the past, I have encountered the issue where the long track ID is actually a UUID. To convert it into the standard 22-character format, start by removing any hyphens from the UUID and converting the hex string into a byte array. Next, encode the array using base62 encoding and then truncate the result to 22 characters. I found the ‘base62’ npm package to be a reliable tool for this process. It is important to include robust error handling and test the function with various inputs to ensure its effectiveness.