Retouche d’images

Replace the overcast sky with a clear blue one. Keep the building, the
lighting on the facade and the framing exactly as they are.

Using the provided image of a living room, change only the blue sofa to be a
vintage, brown leather chesterfield sofa. Keep the rest of the room, including
the pillows on the sofa and the lighting, unchanged.

Put the chair from image 1 into the room from image 2. Match the window light
and cast a soft shadow on the floor. Do not change the room's furniture or
the chair's upholstery.

The person from the reference, now standing on a train platform at night,
three-quarter view, rain, sodium lighting. Keep their face, hair and jacket
identical to the reference.

Redraw image 1 in the visual style of image 2 — same palette, line weight and
grain. Keep the composition and subject of image 1 unchanged.

A ceramic mug in the masked area, same lighting and perspective as the rest of
the frame

{
  "model": "z-image",
  "input": {
    "prompt": "Replace the overcast sky with a clear blue one, keep the lighting on the building consistent",
    "urls": ["https://example.com/facade.jpg"]
  }
}

{
  "model": "wan2.7-image",
  "input": {
    "prompt": "Put the chair from image 1 into the room from image 2, matching the window light",
    "urls": ["https://example.com/chair.png", "https://example.com/room.jpg"],
    "size": "3:2"
  }
}

curl -X POST https://api.api-stock.com/api/v1/generation/create \
  -H "Authorization: Bearer sk-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "midjourney",
    "input": {
      "action": "imagine",
      "prompt": "A weathered brass diving helmet on a workshop bench, volumetric dust",
      "size": "1:1",
      "version": "7",
      "stylize": 300
    }
  }'

{
  "code": 200,
  "data": {
    "taskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "status": "not_started",
    "createdAt": "2026-02-28T13:07:45.000Z"
  }
}

{
  "code": 200,
  "data": {
    "taskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "status": "finished",
    "files": [
      {
        "fileUrl": "https://storage.api-stock.com/generated/mj-grid-4c81.png",
        "fileType": "image"
      }
    ],
    "createdTime": "2026-02-28T13:07:45.000Z"
  }
}

curl -X POST https://api.api-stock.com/api/v1/generation/create \
  -H "Authorization: Bearer sk-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "midjourney",
    "input": {
      "action": "upscale",
      "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
      "index": 2
    }
  }'

const BASE = "https://api.api-stock.com/api/v1";
const KEY = process.env.API_STOCK_KEY!;

async function submit(input: Record<string, unknown>): Promise<string> {
  const res = await fetch(`${BASE}/generation/create`, {
    method: "POST",
    headers: {
      Authorization: `Bearer ${KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ model: "midjourney", input }),
  });
  const body = await res.json();
  if (!res.ok) throw new Error(`${body.error.code}: ${body.error.message}`);
  return body.data.taskId;
}

async function wait(taskId: string) {
  for (;;) {
    await new Promise((r) => setTimeout(r, 5_000));
    const res = await fetch(`${BASE}/task/status/${taskId}`, {
      headers: { Authorization: `Bearer ${KEY}` },
    });
    const body = await res.json().catch(() => null);
    if (!res.ok) {
      const message = body?.error?.message ?? `${res.status} ${res.statusText}`;
      throw new Error(message);
    }
    const { data } = body;
    if (data.status === "finished") return data;
    if (data.status === "failed") throw new Error(data.errorMessage);
  }
}

const gridId = await submit({
  action: "imagine",
  prompt:
    "A weathered brass diving helmet on a workshop bench, volumetric dust",
  size: "1:1",
  version: "7",
  stylize: 300,
});
await wait(gridId);

const upscaleId = await submit({
  action: "upscale",
  parentTaskId: gridId,
  index: 2,
});
const upscaled = await wait(upscaleId);
console.log(upscaled.files[0].fileUrl); // → https://storage.api-stock.com/...

{
  "model": "midjourney",
  "input": {
    "action": "pan",
    "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "index": 2,
    "direction": "left"
  }
}

{
  "model": "midjourney",
  "input": {
    "action": "zoom",
    "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "index": 2,
    "zoomRatio": 1.5
  }
}

{
  "model": "midjourney",
  "input": {
    "action": "modal",
    "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "index": 2,
    "prompt": "Replace the bench with a slab of sea-worn granite",
    "maskUrl": "https://example.com/mask.png"
  }
}

{
  "model": "midjourney",
  "input": {
    "action": "describe",
    "imageUrls": ["https://example.com/reference.jpg"]
  }
}

{
  "model": "midjourney",
  "input": {
    "action": "blend",
    "imageUrls": [
      "https://example.com/texture-a.jpg",
      "https://example.com/texture-b.jpg",
      "https://example.com/texture-c.jpg"
    ],
    "dimensions": "LANDSCAPE"
  }
}

{
  "code": 400,
  "error": {
    "message": "action \"variation\" requires index or customId",
    "type": "BadRequest",
    "code": "invalid_input"
  }
}