Contracts as promises between teams
On This Lesson 4 topics
This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.
In this lesson
treat every API and event as a promise with owners and consumers.
Planned topics
- A contract covers shape, meaning, behavior, and quality (latency, ordering, delivery).
- The producer promises; consumers depend; both sides have obligations.
- Undocumented behavior becomes a contract once someone relies on it.
- Contracts cross team boundaries, so changes are coordination problems.
Draft outline details
Demonstration
a contract card for OrderPlaced: owner, schema, delivery guarantee, ordering key, consumers, deprecation rules.
Check your understanding
When does undocumented behavior become a contract?
Show answer
When a consumer depends on it.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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