Expose production-ready Anypoint Platform-managed APIs from Mule applications13% of the exam
HTTP callbacks and asynchronous responses
Separate callback acceptance from processing, retain accepted work for the stated deployment, and match delivery retries and authentication to the partner contract. Configure outbound headers without multiplying HTTP clients.
Implement HTTP callbacks (webhooks).
~6 min read · 8 practice questions ·
What the exam expects
- Distinguish returning an acknowledgment from completing background work.
- Preserve accepted events under the stated runtime and queue configuration.
- Handle duplicate deliveries and retry only the outcomes the partner defines as retryable.
- Separate outbound client authentication, inbound protection and message signatures.
- Place changing header values at the operation boundary rather than multiplying client configurations.
Key facts
Async result
- Detail
- Main-flow execution does not receive the branch's result.
Queue scope
- Detail
- Single-instance persistence uses disk; cluster persistence uses its memory grid.
Duplicate outcome
- Detail
- A repeated ID raises
MULE:DUPLICATE_MESSAGE.
Retry unit
- Detail
- Every enclosed processor participates in another attempt.
MAC output
- Detail
HMACWithreturns lowercase hexadecimal text.
HTTP header placement
- Detail
- Per-message operation headers can coexist with fixed configuration defaults.
Sources for this section (6)
- Why does changing the idempotent validator's Value Expression fail to change its behavior?
- Why should a test of
HMACWithexpect text rather than raw Binary? - When request streaming mode is ALWAYS, what separate control does HTTP 1.9 document for avoiding whole-body buffering before sending?
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