diegosouzapw/OmniRoute · error

STREAM_EARLY_EOF

STREAM_EARLY_EOF

Error message

${classificationReason}

What it means

Error "${classificationReason}" thrown in diegosouzapw/OmniRoute.

Source

Thrown at open-sse/utils/streamReadiness.ts:580

          handedOffReader = true;
          return { ok: true, response: buildReadyResponse() };
        }

        const classificationReason = "Stream ended before producing a non-ping SSE event";
        const upstreamDiagnostic = readinessState.upstreamDiagnostic || undefined;
        const reason = upstreamDiagnostic
          ? `${classificationReason}: ${upstreamDiagnostic}`
          : classificationReason;
        options.log?.warn?.(
          "STREAM",
          `${reason} (${options.provider || "provider"}/${options.model || "unknown"})`
        );
        return {
          ok: false,
          reason,
          classificationReason,
          ...(upstreamDiagnostic ? { upstreamDiagnostic } : {}),
          code: "STREAM_EARLY_EOF",
          type: "stream_early_eof",
          response: createErrorResponse(
            HTTP_STATUS.BAD_GATEWAY,
            classificationReason,
            "STREAM_EARLY_EOF",
            "stream_early_eof",
            upstreamDiagnostic
          ),
        };
      }

      if (!readResult.value) continue;
      chunks.push(readResult.value);
      const decodedChunk = decoder.decode(readResult.value, { stream: true });

      if (appendStreamReadinessSignal(readinessState, decodedChunk)) {
        options.log?.debug?.(
          "STREAM",

View on GitHub (pinned to a179ffed5b)

When it happens

Trigger: Thrown at open-sse/utils/streamReadiness.ts:580 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of diegosouzapw/OmniRoute@a179ffed5b (2026-08-25). Data as JSON: /api/errors/9386988a99808b9a. Report an issue: GitHub.