通过 Comfy Router 使用 FLUX.1 Kontext

import base64

from comfy_sdk import Comfy

with open("input.jpg", "rb") as f:
    input_image = base64.b64encode(f.read()).decode()

# Reads COMFY_API_KEY from the environment.
# Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
with Comfy() as client:
    handle = client.models.submit(
        "bfl/flux-kontext-pro",
        {
            "prompt": "replace the background with a sunlit beach, keep the subject unchanged",
            "input_image": input_image,
            "aspect_ratio": "1:1",
        },
    )
    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.
    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 = handle.get()

print("image:", result["result"]["sample"])

import { comfy } from "@comfyorg/sdk";
import { readFile } from "node:fs/promises";

const inputImage = (await readFile("input.jpg")).toString("base64");

// Reads COMFY_API_KEY from the environment.
// Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
type Result = { result: { sample: string } };
const handle = await comfy.models.submit<Result>("bfl/flux-kontext-pro", {
  prompt: "replace the background with a sunlit beach, keep the subject unchanged",
  input_image: inputImage,
  aspect_ratio: "1:1",
});
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();
if (result.kind !== "json") throw new Error("expected a JSON result");

console.log("image:", result.data.result.sample);

INPUT_IMAGE=$(base64 < input.jpg | tr -d '\n')

# 1. Submit. Router answers 201 with request_id, status_url, response_url and cancel_url.
curl https://api.comfy.org/v2/models/bfl/flux-kontext-pro/requests \
  -H "X-API-Key: $COMFY_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d "{\"prompt\": \"replace the background with a sunlit beach, keep the subject unchanged\", \"input_image\": \"$INPUT_IMAGE\", \"aspect_ratio\": \"1:1\"}"

# 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/bfl/flux-kontext-pro/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/bfl/flux-kontext-pro/requests/$REQUEST_ID \
  -H "X-API-Key: $COMFY_API_KEY"