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Streaming SSE viewer

Server-Sent Events come back in a wire format that mixes `event:`, `data:`, and blank-line separators. This viewer parses the framing, groups multi-line data per the spec, and pretty-prints any JSON payloads. Useful for debugging streaming endpoints from any provider.

stackreact

SSE bytes

4 events parsed

#01message_start

{
  "type": "message_start",
  "message": {
    "id": "msg_01",
    "role": "assistant",
    "model": "claude-sonnet-4-5"
  }
}

#02content_block_delta

{
  "type": "content_block_delta",
  "index": 0,
  "delta": {
    "type": "text_delta",
    "text": "Hello"
  }
}

#03content_block_delta

{
  "type": "content_block_delta",
  "index": 0,
  "delta": {
    "type": "text_delta",
    "text": " world."
  }
}

#04message_stop

{
  "type": "message_stop"
}