T
tRPC

Hydration failed because the initial UI does not match what was rendered on the server

Hydration failed because the initial UI does not match what was rendered on the server

Ttoadmilk7/10/2023
Unhandled Runtime Error
Error: Hydration failed because the initial UI does not match what was rendered on the server.

Warning: Text content did not match. Server: "3/07/23" Client: "03/07/2023"

See more info here: https://nextjs.org/docs/messages/react-hydration-error
Unhandled Runtime Error
Error: Hydration failed because the initial UI does not match what was rendered on the server.

Warning: Text content did not match. Server: "3/07/23" Client: "03/07/2023"

See more info here: https://nextjs.org/docs/messages/react-hydration-error
const PostPage: NextPage<InferGetStaticPropsType<typeof getStaticProps>> = (
{ id }
) => {
...
const postCreatedAt = post ? dateTimeFormatter.format(post.createdAt) : "";
... }

const dateTimeFormatter = new Intl.DateTimeFormat(undefined, {
dateStyle: "short",
});

export const getStaticPaths: GetStaticPaths = () => {
return {
paths: [],
fallback: "blocking",
}
}

export async function getStaticProps(context: GetStaticPropsContext<{id: string}>) {
const id = context.params?.id;

if (id == null) {
return {
redirect: {
destination: "/"
}
}
}

const ssg = ssgHelper();
await ssg.post.getById.prefetch({id});

return {
props: {
trpcState: ssg.dehydrate(),
id,
}
}
}
const PostPage: NextPage<InferGetStaticPropsType<typeof getStaticProps>> = (
{ id }
) => {
...
const postCreatedAt = post ? dateTimeFormatter.format(post.createdAt) : "";
... }

const dateTimeFormatter = new Intl.DateTimeFormat(undefined, {
dateStyle: "short",
});

export const getStaticPaths: GetStaticPaths = () => {
return {
paths: [],
fallback: "blocking",
}
}

export async function getStaticProps(context: GetStaticPropsContext<{id: string}>) {
const id = context.params?.id;

if (id == null) {
return {
redirect: {
destination: "/"
}
}
}

const ssg = ssgHelper();
await ssg.post.getById.prefetch({id});

return {
props: {
trpcState: ssg.dehydrate(),
id,
}
}
}
could someone explain whats happening and how to fix this please? ok I fixed it by adding
suppressHydrationWarning={true}
suppressHydrationWarning={true}
to the div but I still dont know why that fixed it
AKAlex / KATT 🐱7/10/2023
The date on the server is rendered differently than the client, likely b/c they have different timezones You might notice a flicker on the page with the date when you reload Like the date flashes from one thing or another You have to format dates consistently according to the user's timezone
Ttoadmilk7/11/2023
how do I achieve that

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Hydration failed because the initial UI does not match what was rendered on the server

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