Oracle Integration Cloud: Building Integrations That Survive Production · Module 6 · Orchestration patterns
Invokes, and the shape of a flow
Lesson 60 of 175 · 2 min
Sequencing calls, passing data between them, and keeping the flow readable as it grows past five steps. An invoke is one call to one target, and its response is available to everything after it. That is the whole data model of a flow: each step can see what earlier steps produced, and the mapping into each invoke decides what it gets. READABILITY DEGRADES FAST AND IT DEGRADES SILENTLY. Three steps is obvious; eight with two branches is a diagram somebody has to study; fifteen is archaeology. And nothing warns you, because each individual addition is small and reasonable. Four habits that keep a flow readable. NAME EVERY STEP for what it DOES, not for what it calls — "Get supplier by legacy code" rather than "REST Invoke 3". That single habit is worth more than any other. Keep the happy path linear and push exception handling to the edges rather…
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In this module: Module 6 · Orchestration patterns
- 1App-driven versus scheduled
- 2Invokes, and the shape of a flow
- 3Switch, and branching honestly
- 4Loops over collections
- 5Local variables and assignment
- 6Sub-integrations and reuse
- 7Synchronous versus asynchronous
- 8Stitching in a database or file step
- 9When an orchestration is too big
- 10What breaks: three orchestration failures
- 11Lab briefing · Build a four-step flow