Michael Wolf
d921679058
Both are subclasses of an abstract User class which contains almost everything interesting.
28 lines
841 B
TypeScript
28 lines
841 B
TypeScript
// context.ts
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//
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// Request-scoped context using AsyncLocalStorage.
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// Allows services to access request data (like the current user) without
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// needing to pass Call through every function.
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import { AsyncLocalStorage } from "node:async_hooks";
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import { anonymousUser, type User } from "./user";
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type RequestContext = {
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user: User;
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};
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const asyncLocalStorage = new AsyncLocalStorage<RequestContext>();
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// Run a function within a request context
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function runWithContext<T>(context: RequestContext, fn: () => T): T {
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return asyncLocalStorage.run(context, fn);
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}
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// Get the current user from context, or AnonymousUser if not in a request
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function getCurrentUser(): User {
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const context = asyncLocalStorage.getStore();
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return context?.user ?? anonymousUser;
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}
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export { getCurrentUser, runWithContext, type RequestContext };
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