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

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import { GetServerSidePropsContext } from "next";
import superjson from "superjson";
import { createContext } from "@server/createContext";
import { createSSGHelpers } from "@trpc/react/ssg";
import { appRouter } from "../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 ssr = createSSGHelpers({
router: appRouter,
transformer: superjson,
ctx,
});
// always preload "viewer.i18n"
await ssr.fetchQuery("viewer.i18n");
return ssr;
}