Microservices

             .-----------------------------------------.
             |                       /foo    .-----.   |
 o           |                    .--------->| Foo |   |
/|\ --.      |                   /           '-----'   |
/ \   |      |                  /               |      |
      |      |                 /                v      |
 o    |   .-----. /api/*  .--------.         .-----.   |
/|\ --+-->| TLS |-------->| API GW |         | Bar |   |
/ \   |   '-----'         '--------'         '-----'   |
      |      |                 \                ^      |
 o    |      |                  \               |      |
/|\ --'      |                   \   /baz    .-----.   |
/ \          |                    '--------->| Baz |   |
             |                               '-----'   |
Users        '-----------------------------------------'

References

• Microservices, https://www.martinfowler.com/articles/microservices.html
• Production-Ready Microservices: Building Standardized Systems Across an Engineering Organization, https://www.goodreads.com/book/show/33252815-production-ready-microservices