Function createContext

packages/trpc/src/trpc.ts:34–60

({ req, res }: CreateFastifyContextOptions)

  });

export async function createContext({ req, res }: CreateFastifyContextOptions) {
  const cookies = (req as any).cookies as Record<string, string | undefined>;
  const setCookie: ISetCookie = (key, value, options) => {
    // @ts-ignore
    res.setCookie(key, value, {
      maxAge: options.maxAge,
      signed: options.signed,
      ...COOKIE_OPTIONS,
    });
  };

  if (process.env.NODE_ENV !== 'production') {
    await new Promise((res) =>
      setTimeout(() => res(1), Math.min(Math.random() * 500, 200)),
    );
  }

  return {
    req,
    res,
    session: (req as any).session as SessionValidationResult,
    // we do not get types for `setCookie` from fastify
    // so define it here and be safe in routers
    setCookie,
    cookies,
  };
}
export type Context = Awaited<ReturnType<typeof createContext>>;

const t = initTRPC.context<Context>().create({