Use Kling 4.0 with Comfy Router

import asyncio
from comfy_sdk import AsyncComfy

# Reads COMFY_API_KEY from the environment.
# Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
async def main():
    async with AsyncComfy() as client:
        handle = await client.models.submit(
            "kling/kling-4.0",
            {
                "contents": [
                    {
                        "text": "The fox turns toward the camera.",
                        "type": "prompt",
                    },
                    {
                        "type": "first_frame",
                        "url": "https://example.com/fox.png",
                    },
                ],
                "settings": {
                    "duration": 3,
                    "resolution": "720p",
                },
            },
        )
        print("request_id:", handle.request_id)  # with the model ID, all another process needs

        # Poll until the request completes, waiting the Retry-After the server names.
        async for update in handle.iter_events():
            print(update.status, update.queue_position)

        # The provider's own payload, the same value models.run() returns.
        # A request that failed or was cancelled raises the typed Router error here.
        result = await handle.get()

    print(result)

asyncio.run(main())

import { comfy } from "@comfyorg/sdk";

// Reads COMFY_API_KEY from the environment.
// Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
const handle = await comfy.models.submit("kling/kling-4.0", {
  contents: [
    {
      text: "The fox turns toward the camera.",
      type: "prompt",
    },
    {
      type: "first_frame",
      url: "https://example.com/fox.png",
    },
  ],
  settings: {
    duration: 3,
    resolution: "720p",
  },
});
console.log("requestId:", handle.requestId); // with the model ID, all another process needs

// Poll until the request completes, waiting the Retry-After the server names.
for await (const update of handle.events()) {
  console.log(update.status, update.queuePosition);
}

// The same result models.run() returns. A request that failed or was cancelled rejects here.
const result = await handle.get();

console.log(result.data);

# 1. Submit. Router answers 201 with request_id, status_url, response_url and cancel_url.
curl https://api.comfy.org/v2/models/kling/kling-4.0/requests \
  -H "X-API-Key: $COMFY_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d "{\"contents\": [{\"text\":\"The fox turns toward the camera.\",\"type\":\"prompt\"},{\"type\":\"first_frame\",\"url\":\"https://example.com/fox.png\"}], \"settings\": {\"duration\":3,\"resolution\":\"720p\"}}"

# 2. Poll until status is COMPLETED, waiting the Retry-After seconds each response names.
REQUEST_ID="<request_id from the 201 body>"
curl -i https://api.comfy.org/v2/models/kling/kling-4.0/requests/$REQUEST_ID/status \
  -H "X-API-Key: $COMFY_API_KEY"

# 3. Collect. 200 with the model's native output, 202 with the status body while it is still running.
curl https://api.comfy.org/v2/models/kling/kling-4.0/requests/$REQUEST_ID \
  -H "X-API-Key: $COMFY_API_KEY"