A synchronous call in SAP Cloud Integration implies a request-reply pattern, where the sender waits for a response. Let’s evaluate the adapters:
Step 1: Synchronous vs. Asynchronous- Synchronous adapters support immediate responses (e.g., HTTP-based protocols), while asynchronous ones (e.g., file or message queues) do not.
Step 2: Analyze Options-
A. OData: Based on HTTP, the OData adapter supports request-reply calls (e.g.,querying an OData service), making it synchronous.
B. sFTP: Used for file transfers, sFTP is asynchronous; it doesn’t provide immediate responses.
C. Mail: Email protocols (e.g., IMAP, SMTP) are asynchronous, not suited for synchronous HTTP calls.
D. AMQP: A messaging protocol for queues (e.g., RabbitMQ), inherently asynchronous.
Step 3: HTTP API Context- The question specifies a "remote HTTP API," and OData, being HTTP-based, fits perfectly for synchronous RESTful interactions.
Step 4: Official Source- The SAP Help Portal’s "Configuring OData Receiver Adapter" documentation confirms that OData supports synchronous request-reply operations over HTTP.
Conclusion: Option A (OData) is the verified answer. (Note: The HTTP adapter itself could also apply, but it’s not listed; OData is the best match among the given options.)References:
SAP Help Portal: "Configuring OData Receiver Adapter" (SAP Cloud Integration)
SAP Help Portal: "Adapter Overview"
