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global: snapshot

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nym21
2026-02-04 22:27:44 +01:00
parent 9b409799c8
commit 0433e3b256
12 changed files with 336 additions and 204 deletions
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53
crates/brk_bindgen/src/generators/javascript/client.rs
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@@ -310,6 +310,9 @@ class BrkClientBase {{
this.timeout = isString ? 5000 : (options.timeout ?? 5000);
/** @type {{Promise<Cache | null>}} */
this._cachePromise = _openCache(isString ? undefined : options.cache);
/** @type {{Cache | null}} */
this._cache = null;
this._cachePromise.then(c => this._cache = c);
}}
/**
@@ -325,35 +328,57 @@ class BrkClientBase {{
}}
/**
* Make a GET request with stale-while-revalidate caching
* Make a GET request - races cache vs network, first to resolve calls onUpdate
* @template T
* @param {{string}} path
* @param {{(value: T) => void}} [onUpdate] - Called when data is available
* @param {{(value: T) => void}} [onUpdate] - Called when data is available (may be called twice: cache then network)
* @returns {{Promise<T>}}
*/
async getJson(path, onUpdate) {{
const base = this.baseUrl.endsWith('/') ? this.baseUrl.slice(0, -1) : this.baseUrl;
const url = `${{base}}${{path}}`;
const cache = await this._cachePromise;
const cachedRes = await cache?.match(url);
const cachedJson = cachedRes ? await cachedRes.json() : null;
const cache = this._cache ?? await this._cachePromise;
if (cachedJson) onUpdate?.(cachedJson);
if (globalThis.navigator?.onLine === false) {{
if (cachedJson) return cachedJson;
throw new BrkError('Offline and no cached data available');
}}
let resolved = false;
/** @type {{Response | null}} */
let cachedRes = null;
try {{
const res = await this.get(path);
if (cachedRes?.headers.get('ETag') === res.headers.get('ETag')) return cachedJson;
// Race cache vs network - first to resolve calls onUpdate
const cachePromise = cache?.match(url).then(async (res) => {{
cachedRes = res ?? null;
if (!res) return null;
const json = await res.json();
if (!resolved && onUpdate) {{
resolved = true;
onUpdate(json);
}}
return json;
}});
const networkPromise = this.get(path).then(async (res) => {{
const cloned = res.clone();
const json = await res.json();
onUpdate?.(json);
// Skip update if ETag matches and cache already delivered
if (cachedRes?.headers.get('ETag') === res.headers.get('ETag')) {{
if (!resolved && onUpdate) {{
resolved = true;
onUpdate(json);
}}
return json;
}}
resolved = true;
if (onUpdate) {{
onUpdate(json);
}}
if (cache) _runIdle(() => cache.put(url, cloned));
return json;
}});
try {{
return await networkPromise;
}} catch (e) {{
// Network failed - wait for cache
const cachedJson = await cachePromise?.catch(() => null);
if (cachedJson) return cachedJson;
throw e;
}}