How to combine next-i18next into an existing getServerSideProps function in NextJS - next.js

Question

I have a Next page that uses next-i18next in a getServerSideProps and I have another page that uses getServerSideProps to pull data from MongoDB. Both work correctly.
I would like to be able to add next-i18next to the function that connects to Mongo (basically combine the getServerSideProps functions), but I'm getting the error:
nexti18n-next Error: Initial locale argument was not passed into serverSideTranslations'
The first page's getServerSideProps function that connects to next-i18n
export const getServerSideProps = withAuthUserSSR({ whenUnauthed: AuthAction.REDIRECT_TO_LOGIN,})(async ({ locale, }) => {
return {
props: {
...(await serverSideTranslations(locale,
[
'language-file',
...
]
)),
},
};
})
The getServerSideProps function in the second page that pulls data from Mongo:
export const getServerSideProps = withAuthUserSSR({ whenUnauthed: AuthAction.REDIRECT_TO_LOGIN })(async (context) => {
const username = context.params.var[0];
const userId = context.params.var[2];
const { db } = await connectToDatabase();
const pipeline = [
...
]
const postdata = await db.collection('posts').aggregate(pipeline).toArray();
return {
props: {
userId,
username,
postdata: JSON.parse(JSON.stringify(postdata)),
},
};
})
Is it possible to 'add' the next-i18next code to the second function? It seems to me to be an issue with the different way 'locale' and 'context' are defined in each function. I have tried lots of combinations of both but end up messing up either the mongo query or the translations.
This is how I thought it would be done:
export const getServerSideProps = withAuthUserSSR({ whenUnauthed: AuthAction.REDIRECT_TO_LOGIN })(async (context,{ locale, }) => {
const username = context.params.var[0];
const userId = context.params.var[2];
const { db } = await connectToDatabase();
const pipeline = [
...
]
const postdata = await db.collection('posts').aggregate(pipeline).toArray();
return {
props: {
...(await serverSideTranslations(locale,
[
'language-files',
...
]
)),
userId,
username,
postdata: JSON.parse(JSON.stringify(postdata)),
},
};
})
Many thanks for any possible help!