santi•8mo ago

Create client that is used in every request, without re-creating client

Hi all, Consider the following

export const createContextInner = async ({
  req,
  res,
}: {
  req?: Context['req']
  res?: Context['res']
}): Promise<Context> => {
  const app = await NestFactory.createApplicationContext(AppModule)
  return {
    app,
    prisma,
    req,
    res,
    supabaseServerClient: null,
    user: null,
  }
}

export const createContextInner = async ({
  req,
  res,
}: {
  req?: Context['req']
  res?: Context['res']
}): Promise<Context> => {
  const app = await NestFactory.createApplicationContext(AppModule)
  return {
    app,
    prisma,
    req,
    res,
    supabaseServerClient: null,
    user: null,
  }
}

This is annoying in local development because it needs to create the nest app for every request. The same thing with the prisma client. We'd like to create this once and use in every request. Is this possible?

3 Replies

BeBoRE•8mo ago

Move it outside of the context creator?

santiOP•8mo ago

To where though? It'd be ideal here

export const t = initTRPC.context<Context>().create({
  transformer: superjson,
  errorFormatter({ shape }) {
    return shape
  },
})

export const t = initTRPC.context<Context>().create({
  transformer: superjson,
  errorFormatter({ shape }) {
    return shape
  },
})

BeBoRE•8mo ago

The global context