Monday 28 November 2022

Codemotion: Design-first gRPC APIs for microservices: a sample workflow for parallel teamwork

We have just published an article on Codemotion about "Design-first gRPC APIs for microservices: a sample workflow for parallel teamwork".

Key Takeaways:

  • You can allow teams to work in parallel by designing gRPC APIs before starting to code. 
  • When teams work in parallel, you significantly decrease the time-to-market of your products.
  • A sample workflow has a few key stages.
    • The teams start by designing the gRPC API
    • Then, producer and consumer teams can work in parallel on their microservices.
    • The consumer team can use mocks to simulate the backend producer service.
    • Communicating feedback about the API specification during the development phase is essential.
    • Once the microservices are ready, they can test them together and release them to production.
  • You can start by onboarding just one API to this new workflow; you don’t have to migrate your whole company, to begin with
  • Working in parallel is excellent for team morale as there is less hard-deadline pressure
  • You can estimate the return on investment by using a simple spreadsheet.

Thursday 10 November 2022

Traffic Parrot 5.35.5 released, what's new?

We have just released version 5.35.5. Here is a list of the changes that came with the release:


  • Added support for Apache Thrift service simulation, see a demo video
  • Added ability to configure HTTP basic authentication for the Traffic Parrot user interface
    • Enable in the file by setting:
    • Configure users in the file, in Jetty HashLoginService format:


  • Fixed a UI issue with mappings edited multiple times during the same UI session
  • Added support for protoc on Apple ARM based M1/M2 processors
  • Library upgrades to fix OWASP issues


  • Upgraded bundled JRE from 8u332 to 8u345
  • Upgraded WireMock from 2.33.2 to 2.35.0
  • Upgraded gRPC from 1.46.0 to 1.50.2
  • Upgraded protoc from 3.20.1 to 3.21.9