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feat(cache): allow setting custom getKey for defineCachedEventHandler #744

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merged 6 commits into from
Dec 23, 2022
Merged

feat(cache): allow setting custom getKey for defineCachedEventHandler #744

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eb88c30
feat: add getKey option to cached event handler
yassilah Dec 10, 2022
d061a14
prettier
yassilah Dec 10, 2022
3861f48
remove yarn.lock
yassilah Dec 11, 2022
1bc1802
fix: call getKey within fallback fn
yassilah Dec 13, 2022
30f0853
fix: escape getKey
yassilah Dec 13, 2022
3297eb5
lint
yassilah Dec 13, 2022
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21 changes: 14 additions & 7 deletions src/runtime/cache.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -129,24 +129,31 @@ export interface ResponseCacheEntry<T = any> {
}

export interface CachedEventHandlerOptions<T = any>
extends Omit<
CacheOptions<ResponseCacheEntry<T>>,
"getKey" | "transform" | "validate"
> {
extends Omit<CacheOptions<ResponseCacheEntry<T>>, "transform" | "validate"> {
getKey?: (event: H3Event) => string;
headersOnly?: boolean;
}

function escapeKey(key: string) {
return key.replace(/[^\dA-Za-z]/g, "");
}

export function defineCachedEventHandler<T = any>(
handler: EventHandler<T>,
opts: CachedEventHandlerOptions<T> = defaultCacheOptions
): EventHandler<T> {
const _opts: CacheOptions<ResponseCacheEntry<T>> = {
...opts,
getKey: (event) => {
const key = opts.getKey?.(event);
if (key) {
return escapeKey(key);
}
const url = event.req.originalUrl || event.req.url;
const friendlyName = decodeURI(parseURL(url).pathname)
.replace(/[^\dA-Za-z]/g, "")
.slice(0, 16);
const friendlyName = escapeKey(decodeURI(parseURL(url).pathname)).slice(
0,
16
);
const urlHash = hash(url);
return `${friendlyName}.${urlHash}`;
},
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