How to get tenant id from JWT on a muti-tenant NestJS+Passport implementation?

Question

I am extending the @Nurikabe answer to NestJS Request Scoped Multitenancy for Multiple Databases to get the tenant ID from JWT.

This is the key problem: since I am using passport.js, and it resolves the jwt after the connectionFactory running in the module implementation, I don't have the tenant ID in that moment.

Does anybody know how to work it out?

Answer 1

I ended up with this kludge:

function getTenantIdFromToken(token: string): string {
  var {acc} = jwt.decode(token) as Payload;
  return acc
}

in the connectionFactory:

...
const tenant = getTenantIdFromToken(req.req.headers.authorization.split(' ')[1])
...