So what’s bothering me lately is the question - Shared client libraries in Microservices - is it good or bad or it depends ;)


  • Code Reuse
  • Defects can be fixed at single location


  • One of the main benefits of microservices is independence; in terms of language, code, team. Shared client library increases co-ordination.
  • With library comes transitive dependencies - AaHa… - so you are potentially stuck with HttpClient 3.x.
  • Mental Barrier to make changes to shared libraries.