cal.pub0.org/apps/web/server/lib/ssr.ts

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import type { GetServerSidePropsContext } from "next";
import { serverSideTranslations } from "next-i18next/serverSideTranslations";
import superjson from "superjson";
import { getLocaleFromHeaders } from "@calcom/lib/i18n";
import { createProxySSGHelpers } from "@calcom/trpc/react/ssg";
import { createContext } from "@calcom/trpc/server/createContext";
import { appRouter } from "@calcom/trpc/server/routers/_app";
/**
* Initialize server-side rendering tRPC helpers.
* Provides a method to prefetch tRPC-queries in a `getServerSideProps`-function.
* Automatically prefetches i18n based on the passed in `context`-object to prevent i18n-flickering.
* Make sure to `return { props: { trpcState: ssr.dehydrate() } }` at the end.
*/
export async function ssrInit(context: GetServerSidePropsContext) {
const ctx = await createContext(context);
const locale = getLocaleFromHeaders(context.req);
const i18n = await serverSideTranslations(getLocaleFromHeaders(context.req), ["common", "vital"]);
const ssr = createProxySSGHelpers({
router: appRouter,
transformer: superjson,
ctx: { ...ctx, locale, i18n },
});
// always preload "viewer.public.i18n"
await ssr.viewer.public.i18n.fetch();
// So feature flags are available on first render
await ssr.viewer.features.map.prefetch();
return ssr;
}