Release prep - #51
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Enable keep-alive on the AyonApi httplib client so the TCP/TLS connection is reused across resolves instead of a fresh handshake per request; over a WAN link the handshake dominates per-call latency. Keep-alive can be disabled with AYON_RESOLVER_NO_KEEPALIVE=1 for benchmarking. Add batchResolvePathSerial(): resolve a whole frontier of uris in one POST over that persistent client, split into capped chunks (m_maxSerialBatchSize) so a large frontier never sends an unbounded request or holds a server DB connection for the full set.
The AYON server rejects /api/resolve with HTTP 400 when the X-ayon-site-id header is present but empty or names an unregistered site. That breaks resolution on service-account and cloud workstations with no registered site. Add the header only when m_siteId is non-empty.
Reuse HTTP connection and add chunked single-request batch resolve
antirotor
approved these changes
Jul 16, 2026
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Changelog Description
This pull request introduces several improvements to the AYON C++ API, focusing on connection efficiency, request batching, and header handling. The main changes include enabling persistent keep-alive connections for the HTTP client, adding a new serial batch path resolution method, and improving header logic to avoid unnecessary errors when a site ID is not present.
Connection Handling Improvements
httplib::ClientinAyonApi) now reuses TCP/TLS connections by default, significantly reducing latency for serial and batched requests. This behavior can be disabled by setting theAYON_RESOLVER_NO_KEEPALIVEenvironment variable.Batch Path Resolution Enhancements
batchResolvePathSerial, which resolves a vector of URIs in a single batched POST request using the persistent client. This method splits large batches into capped chunks to prevent overloading the server and matches the chunk size used in async requests. [1] [2] [3]Request Header Logic
X-ayon-site-idheader when a valid site ID is present. This prevents server errors for service accounts or machines without a registered site.Testing notes:
Testing is not needed - tested already before merging to develop.