In a distributed architecture like a microservice, there will come a point where we’ll need to ensure that critical behaviors such as security, logging, and tracking users across multiple service calls occur. To implement this functionality, we’ll want these attributes to be consistently enforced across all of our services without the need for each individual development team to build their own solution. While it’s possible to use a common library or framework to assist with building these capabilities directly in an individual service, doing so has these implications: