Usa FLUX Pro 1.0 Expand con Comfy Router

import asyncio
from comfy_sdk import AsyncComfy

# Lee COMFY_API_KEY del entorno.
# Cada llamada a submit() genera su propia Idempotency-Key y la reutiliza en los reintentos automáticos.
async def main():
    async with AsyncComfy() as client:
        handle = await client.models.submit(
            "bfl/flux-pro-1.0-expand",
            {
                "image": "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",
                "prompt": "extend the plain white background upward",
                "top": 64,
            },
        )
        print("request_id:", handle.request_id)  # junto con el ID del modelo, todo lo que necesita otro proceso

        # Consulta periódicamente hasta que la solicitud se complete, esperando el Retry-After que indica el servidor.
        async for update in handle.iter_events():
            print(update.status, update.queue_position)

        # La carga útil propia del proveedor, el mismo valor que devuelve models.run().
        # Una solicitud que falló o se canceló genera aquí el error tipado de Router.
        result = await handle.get()

    print(result)

asyncio.run(main())

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

// Lee COMFY_API_KEY del entorno.
// Cada llamada a submit() genera su propia Idempotency-Key y la reutiliza en los reintentos automáticos.
const handle = await comfy.models.submit("bfl/flux-pro-1.0-expand", {
  image: "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",
  prompt: "extend the plain white background upward",
  top: 64,
});
console.log("requestId:", handle.requestId); // junto con el ID del modelo, todo lo que necesita otro proceso

// Consulta periódicamente hasta que la solicitud se complete, esperando el Retry-After que indica el servidor.
for await (const update of handle.events()) {
  console.log(update.status, update.queuePosition);
}

// El mismo resultado que devuelve models.run(). Una solicitud que falló o se canceló se rechaza aquí.
const result = await handle.get();

console.log(result.data);

# 1. Envía. Router responde 201 con request_id, status_url, response_url y cancel_url.
curl https://api.comfy.org/v2/models/bfl/flux-pro-1.0-expand/requests \
  -H "X-API-Key: $COMFY_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d "{\"image\": \"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\", \"prompt\": \"extend the plain white background upward\", \"top\": 64}"

# 2. Consulta periódicamente hasta que el estado sea COMPLETED, esperando los segundos de Retry-After que indica cada respuesta.
REQUEST_ID="<request_id from the 201 body>"
curl -i https://api.comfy.org/v2/models/bfl/flux-pro-1.0-expand/requests/$REQUEST_ID/status \
  -H "X-API-Key: $COMFY_API_KEY"

# 3. Recupera. 200 con la salida nativa del modelo, 202 con el cuerpo del estado mientras sigue en ejecución.
curl https://api.comfy.org/v2/models/bfl/flux-pro-1.0-expand/requests/$REQUEST_ID \
  -H "X-API-Key: $COMFY_API_KEY"