type for next

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The next argument in the onRequest function is a function that intercepts (reads and modifies) the Response of a Request or calls the “next” middleware in the chain and returns a Response. It is an optional argument of onRequest(), and may provide the required Response returned by the middleware.

In TypeScript, you can type it as a function that returns a Promise of a Response object. Here's how you can type it:

export const onRequest = async (context: APIContext, next: () => Promise<Response>) => {
    // ...
};

Please note that the next function is called without any arguments.

For more information, you can refer to the Astro documentation on Middleware (https://docs.astro.build/en/reference/api-reference#middleware-astromiddleware).

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