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* fix(proxy): preserve Responses SSE event framing
* style(proxy): format Responses stream terminator condition
* fix(proxy): validate Responses guardrail event names
* fix(proxy): keep Responses first-event errors and keepalive failures in Responses framing
* test(proxy): use controlled clocks for Responses keepalive failures
* fix(proxy): end late Responses failures with an error event the SDK raises on
Errors that arrive after keepalive pings, and guardrail error strings yielded
mid-stream, now end /v1/responses with a named `error` event carrying the
same error object chat sends, so the OpenAI SDK still raises APIError with a
clean message and provider_specific_fields. Background polling passes the
same framing and records an `error` event as a failed response. The first
data line of a frame is found by splitting on newlines only, so a U+2028 in
an error message no longer hides a first-event error.
* fix(proxy): match OpenAI's Responses error event and stream late passthrough blocks as block responses
* fix(proxy): keep the reason when a background Responses request fails
A background poll of a request a post-call guardrail blocked saved a
null code and message, because the guardrail's error event nests them.
A request whose first chunk was an error polled as completed with no
error. Both now poll failed with the same code and message a late
failure gets.
* test(proxy): type the first-chunk poll test parameters
* fix(proxy): keep first-chunk error detection to lone error frames and handle string poll errors
* fix(proxy): keep the HTTP status on late Responses errors and end Responses streams on error events
A late error body without a code now takes the response's status, an upstream error event counts as the stream's terminal event, and a Responses stream that fails before its first chunk ends with an error event instead of data: [DONE].
* test(proxy): type the first-chunk failure test's parameters
* fix(proxy): keep cursor chat framing and JSON-encode Responses hook errors
* fix(proxy): encode non-dict Mapping Responses chunks as JSON objects
* fix(proxy): encode mappings and models nested in Responses stream chunks as JSON objects
* test(proxy): freeze the hook-output fixture
* fix(proxy): keep masked mappings and odd keys safe in Responses stream frames
Only read-only dict views and pydantic models nested in a hook chunk or error event expand into JSON objects. Other mappings, such as httpx.Headers, keep their own string form so masked values stay masked. Keys JSON cannot take become strings, and a chunk JSON still cannot encode goes out as the plain data frame it was before.
* fix(proxy): never fail a Responses stream frame on a value JSON cannot encode
Only dicts and read-only dict views expand into JSON, at the top level too, so a header mapping yielded as a whole chunk keeps its masked string form. Any failure while encoding a chunk falls back to the plain data frame the base sent, and an error event that cannot encode still goes out with its code and message, so a late block never drops the connection.
* fix(proxy): keep what a nested value's repr hides out of Responses stream frames
* fix(proxy): print values in Responses stream frames the way each base path did
* fix(proxy): send string and number subclasses whose repr shows their value as that value in Responses stream frames
* fix(proxy): print container subclasses and SDK models in Responses stream frames the way base did
* fix(proxy): read hook container storage the way repr does and send error-event models as str()
* fix(proxy): frame streamed Responses reads and send unreadable hook values as base did
Track pre-framed and raw SSE frames so a late failure never follows a terminal event, accept CRLF and CR line breaks in a first named error, frame GET /v1/responses/{id}?stream=true as Responses events, print a whole hook proxy chunk once and fall back to its text, ignore a non-integer status_code in a hook error frame, read a late-block dict subclass through items() when that view differs from its storage, and keep the order and inline form base's repr printed for nested mappings
* fix(proxy): match base on Responses stream edge cases
Read a decimal-string or integral-float status_code as its integer again, so
"429" and 429.0 still map to rate_limit_exceeded. Print each hook value's repr
once and reuse it, so a repr that changes between calls cannot reach the
client. Track only pre-framed sequence numbers from 0 to 2**63-1, so a huge
one cannot break the failure event. Build nested JSON with one frame per level
again, which restores the nesting depth sent as JSON. Count a pre-framed frame
as terminal from its data type, and a named error frame only when its data
carries an error, the way the OpenAI SDKs read them.
* fix(proxy): print hook proxies once and keep base's chunk tracking
Read-only mappings in hook chunks now emit the text from their first print, hook
chunks are read without their error field, only a non-empty error object makes a
framed error event terminal, and framed sequence numbers stay below 2**63-1 while
hook chunks keep base's unbounded tracking
* fix(proxy): print each read-only mapping item once and poll framed error events as failed
A MappingProxyType in a hook chunk or error detail now expands from the
mapping it wraps, so each item is printed once, the way base printed it.
A value whose repr changes between calls stays masked, a value whose repr
works once is kept, and deep nesting keeps one stack frame per level
The background reader takes each frame's type from the same terminal rule
the stream uses, so an event: error frame with an error object polls
failed even when its data names another type or none
* fix(proxy): print self-holding hook values once and poll how the stream ended
A container that holds itself now goes out as the marker its repr prints, like {...}, [...] or mappingproxy({...}), and the dict behind a read-only mapping joins the cycle check, so no item is printed a second time. A dict whose item repr adds a key keeps going after the items already shown, the way dict's repr does, instead of printing the whole dict again
A whole read-only mapping chunk that cannot go out as JSON is printed once by the formatter, so a print that fails fails the stream as it did on the base
The background poll reads the event type from the block it parses, as on the base, and keeps the first error frame the stream treats as terminal anywhere in a chunk. That frame fails the poll only when no response.completed, response.failed or response.incomplete follows it
* fix(proxy): name hook chunk events from the sent JSON and keep polls on frames they cannot read
A mapping chunk now takes its event: line from the JSON it sends, so a masked type value never reaches that line, and a chunk the event model cannot read goes out as a plain data frame instead of failing the stream
A dict whose item repr deletes or swaps keys keeps printing every key not yet shown, and an error code past the integer digit limit reads as no status
The background poll skips a frame whose shape it cannot read, as base skipped frames it could not parse, stops reading a chunk at [DONE], and lets only the last terminal frame in a chunk decide its status
A Responses stream's first chunk answers as a JSON error only for codes 400 and up
* fix(proxy): read every frame of a polled chunk and name model chunks from the sent JSON
A background poll parsed only the first data frame of each chunk, so a terminal event behind an error or delta frame in the same chunk was lost, and the poll stored a status its own stream never ended with. It now reads every frame up to [DONE]
A terminal event whose response is a string or null kept no status and polled completed. Its status now comes from the event type, and final output items that are not objects are skipped, so the rest of the final output is still stored
Model chunks now take their event line from the JSON they send, as mapping chunks already do, so a serializer that drops type no longer sends event: response.completed over {}
* fix(proxy): read polled chunks as SSE events and keep draining past a mid-chunk [DONE]
A background poll split a chunk into data lines, so one event with two data lines parsed as two payloads, and a frame with an integer past the digit limit raised a ValueError the parse guard did not catch, which failed the poll and dropped its spend row. The poll now joins each event's data lines the way an SSE reader does and skips any frame it cannot parse
A [DONE] behind another frame in one chunk ended the poll and left the stream unbilled. Only a chunk that opens with [DONE] ends the poll now, as on main, and the poll stops reading a chunk at its first terminal event, so two terminal events in one chunk poll the first one as main did
* fix(proxy): JSON-encode only plain hook chunks on Responses streams
A hook chunk whose whole tree is builtin JSON types streams as its named
event. Any other chunk keeps the base data frame, so nothing a custom
repr hides reaches the wire. Error event details encode the way the chat
error frame does.
* fix(proxy): skip containers already visited when checking hook chunks for JSON
* fix(responses): keep streaming past an event with no type
The Responses stream iterator read event.type directly when it noted a
yielded event, so an event whose JSON had no type, like a custom hook's
dict that the proxy now sends as JSON, raised AttributeError and ended
the stream. Read it with getattr, as the iterator's other checks do.
* fix(proxy): keep hook dicts with no type on the base Responses frame
A hook dict with no type is not a Responses event, so it gets no event
name either way. Sending it as JSON only made litellm SDKs that read
type on every event stop the stream. Keep such dicts on the frame the
base sends, so every SDK version reads them as before.
* fix(responses): keep a background poll's first terminal status and take a first-chunk error code from its HTTP status
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Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
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| __init__.py | ||
| test_response_polling_handler.py | ||