Add Rust runtime blog: 3 things you can build

[atharvadeosthale]

Add blog for "3 things you can build with the Rust runtime"

[appwrite]

Appwrite Website

Project ID: 69d7efb00023389e8d27

Sites (1)

Site	Status	Logs	Preview	QR
website 69d7f2670014e24571ca	Failed	View Logs	Preview URL

Website (appwrite/website)

Project ID: 684969cb000a2f6c0a02

Sites (1)

Site	Status	Logs	Preview	QR
website 68496a17000f03d62013	Queued	View Logs	Preview URL

---

Tip

Each function runs in its own isolated container with custom environment variables

[greptile-apps]

Greptile Summary

This PR adds a new blog post introducing three Appwrite Functions examples written in the Rust 1.83 runtime: an image optimizer, a PDF invoice generator, and an HMAC-verified webhook receiver. The three previously raised issues (width=0 guard, full-payload PII logging, and the and_then/.map antipattern) have all been addressed in this revision.

• Image optimizer: width == 0 guard returns a 400, image decoding uses .map(|r| r.decode()) correctly, and the log line includes only dimensions and byte counts.
• Webhook receiver: logging now emits only the event name and payload size with an inline comment explaining the PII rationale.
• PDF invoice generator: the page layout starts at y=215 mm and decrements 8 mm per row with no pagination — after ~27 items rows silently fall below the page boundary and disappear from the rendered PDF without any error signal.

Confidence Score: 4/5

Safe to merge once the PDF overflow issue is addressed or documented

The PDF invoice renderer uses a fixed y-coordinate that goes negative after ~26 items, silently clipping rows from the rendered output. Readers who copy the code into a production function will get truncated invoices with no error for any moderately-sized item list.

src/routes/blog/post/3-things-you-can-build-with-rust-runtime/+page.markdoc — the render_invoice function's page layout logic

Important Files Changed

Filename	Overview
src/routes/blog/post/3-things-you-can-build-with-rust-runtime/+page.markdoc	New blog post with three Rust function examples; previous issues (width=0 guard, PII logging, and_then antipattern) are addressed, but the PDF renderer silently clips rows beyond ~26 items with no error
.optimize-cache.json	Cache file updated with new blog post and image entries; no logic changes

_{Reviews (4): Last reviewed commit: "Link to appwrite-community/rust-function..." | Re-trigger Greptile}

[adityaoberai]

Approving, just ensure the example apps are tested

Also, please add them to a repo under https://github.com/appwrite-community