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Bound an SSE stream by event only

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An event stream has no end, but the client's payload_max_length, 100MB
by default, cut it and made the client reconnect. SSEClient lifts that
limit for its stream; each event stays bounded by
CPPHTTPLIB_SSE_MAX_EVENT_LENGTH.
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yhirose committed 2026-10-16 21:38:40 -04:00
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README-sse.md
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@@ -79,7 +79,7 @@ sse.set_max_reconnect_attempts(10);
sse.set_headers({{"Authorization", "Bearer new_token"}});
```
An event, or a line still waiting for its end, longer than `CPPHTTPLIB_SSE_MAX_EVENT_LENGTH` (16MB by default, `0` for no limit) ends the connection with `Error::ExceedMaxPayloadSize`, and the client stops rather than reconnect to the same event. The whole stream also counts against the client's `set_payload_max_length()` (100MB by default), so set it to `0` for a long-lived stream.
An event, or a line still waiting for its end, longer than `CPPHTTPLIB_SSE_MAX_EVENT_LENGTH` (16MB by default, `0` for no limit) ends the connection with `Error::ExceedMaxPayloadSize`, and the client stops rather than reconnect to the same event. The client's `set_payload_max_length()` does not apply to the stream as a whole, which has no end.
#### Control