🖼️ og-img

Edge service to generate embeddable dynamic 🖼️ OpenGraph image. Powered by next/og.

Caching & Optimization

Generated images are cached at the edge with immutable headers (s-maxage=31536000).

Cache invalidation: Append or update a v query param to force a new render:

/api/generate?heading=Hello&v=2

Query params:

Param	Default	Description
heading	—	Main heading text (max 100 chars)
text	—	Subtext (max 200 chars)
template	base	Template name (color for gradient background)
center	false	Center-align content
width / height	1200 / 630	Image dimensions

Runtime: Node.js 22.x (fonts loaded from filesystem, not HTTP). Fonts: Only Outfit-Medium and Outfit-Bold are bundled.

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2021 - Agustinus Nathaniel