Question 1

What's the difference between tempy and the tmp npm package?

Accepted Answer

Tempy is designed for simplicity with a minimal API focused on generating temp paths and optional cleanup, while tmp provides more comprehensive features like file descriptors and advanced callbacks. Tempy is better for straightforward use cases where lightweight dependency is preferred.

Question 2

How do I automatically delete a temp file after using it with tempy?

Accepted Answer

Use the temporaryFileTask() method. It creates a temp file, passes the path to your callback, and ensures the file is deleted after the callback completes, even if an error occurs, preventing leftover files.

Question 3

Can I use tempy in asynchronous Node.js code?

Accepted Answer

Yes, tempy fully supports async/await. Methods like temporaryFileTask() return promises, and you can use them in async functions. The library provides both sync and async APIs for flexibility.

Question 4

How to specify a custom directory for temp files in tempy?

Accepted Answer

You can use the rootDirectory option to set an absolute base path, or parentDirectory to create a subdirectory within the OS temp dir. This helps organize temporary files by application, as demonstrated in the README.

Question 5

Is tempy safe for concurrent use in multi-threaded Node.js?

Accepted Answer

Tempy generates unique, random paths to minimize conflicts, but it doesn't handle concurrency control. For safe concurrent use, ensure each process or thread uses distinct paths or implement external locking mechanisms.

Question 6

What happens if a temp file creation fails in tempy?

Accepted Answer

Tempy throws exceptions on filesystem errors, such as permission denied or disk full. You should wrap calls in try-catch blocks to gracefully handle these errors and maintain application stability.

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