Function createContext

src/server/trpc/trpc.ts:15–34

({ req }: CreateExpressContextOptions)

import { parse as languageParse } from 'accept-language-parser';

export async function createContext({ req }: CreateExpressContextOptions) {
  const authorization = req.headers['authorization'] ?? '';
  const token = authorization.replace('Bearer ', '');
  const timezone = req.headers['timezone']
    ? String(req.headers['timezone'])
    : 'utc';
  const language =
    get(languageParse(req.headers['accept-language']), [0, 'code']) ?? 'en';

  let origin = '';
  if (req.headers['origin']) {
    origin = String(req.headers['origin']);
  } else if (req.headers['x-forwarded-proto'] && req.headers['host']) {
    origin = `${req.headers['x-forwarded-proto']}://${req.headers['host']}`;
  } else if (req.headers['host']) {
    origin = `${req.protocol}://${req.headers['host']}`;
  }

  return { token, timezone, language, req, origin };
}

type Context = Awaited<ReturnType<typeof createContext>>;
const t = initTRPC.context<Context>().meta<OpenApiMeta>().create();