The data-sync-ui server uses the https://www.npmjs.com/package/pino logger v4.

v5 was released recently and it has some very nice features we might take advantage of at some stage (such as redaction). The data-sync-server has already been upgraded, so it should be possible to copy what was done here: https://github.com/aerogear/data-sync-server/commit/01a4165d0cb42eb129ae37cf4dfe108750dac9ae