contentObservable() — astro Function Reference

Architecture documentation for the contentObservable() function in utils.ts from the astro codebase.

Function typescript ContentCollections DataLoaders calls 1

Entity Profile

ContentCollections→ DataLoaders→ contentObservable() — astro Function Reference

Dependency Diagram

graph TD
  7b23a9eb_5437_4f11_b652_ce9864e4d78e["contentObservable()"]
  7a09e708_c090_71c0_8138_7343699b1865["utils.ts"]
  7b23a9eb_5437_4f11_b652_ce9864e4d78e -->|defined in| 7a09e708_c090_71c0_8138_7343699b1865
  60f9d17b_4787_7be4_94e7_e5fe48a70363["fn()"]
  7b23a9eb_5437_4f11_b652_ce9864e4d78e -->|calls| 60f9d17b_4787_7be4_94e7_e5fe48a70363
  style 7b23a9eb_5437_4f11_b652_ce9864e4d78e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/astro/src/content/utils.ts lines 675–697

function contentObservable(initialCtx: ContentCtx): ContentObservable {
	type Subscriber = (ctx: ContentCtx) => void;
	const subscribers = new Set<Subscriber>();
	let ctx = initialCtx;
	function get() {
		return ctx;
	}
	function set(_ctx: ContentCtx) {
		ctx = _ctx;
		subscribers.forEach((fn) => fn(ctx));
	}
	function subscribe(fn: Subscriber) {
		subscribers.add(fn);
		return () => {
			subscribers.delete(fn);
		};
	}
	return {
		get,
		set,
		subscribe,
	};
}