Accessing Apollo Server context within Prisma client extension

[bcksl]

Is it possible? I've inspected the params passed to the query middleware and I didn't see that there is any route to the Apollo Server context. Is there a way to choose how the Prisma client is instantiated or called in the generated resolvers to pass request-level context through to a client extension?

[MichalLytek]

You would need to create a fresh instance of prisma client per each request, so that would has access to the graphql context.

[greg-nagy]

An example:

export function createExtendedPrismaClientForI18n({
  prisma,
  t,
}: {
  prisma: PrismaClient
  t: i18n['t']
}) {
  return prisma.$extends({
    name: 'prisma-extension-i18n',
    ...
  }) as unknown as PrismaClient
}

async function createRequestContext(
  prisma: PrismaClient,
  i18n: i18nType,
  lng: string,
) {
  ...
  return {
    prisma: createExtendedPrismaClientForI18n({
      prisma,
      t: i18n.getFixedT(lng),
    }),
  }
}

  const { url } = await startStandaloneServer(server, {
    context: async ({ req }) => {
      ...
      return createRequestContext(prisma, i18n, lng)
    },
    listen: { port },
  })