画像生成

A minimalist composition featuring a single, delicate red maple leaf positioned
in the bottom-right of the frame. The background is a vast, empty off-white
canvas, creating significant negative space for text. Soft, diffused lighting
from the top left. Square image.

A high-resolution, studio-lit product photograph of a minimalist ceramic coffee
mug in matte black, presented on a polished concrete surface. The lighting is a
three-point softbox setup designed to create soft, diffused highlights and
eliminate harsh shadows. The camera angle is a slightly elevated 45-degree shot
to showcase its clean lines. Ultra-realistic, with sharp focus on the steam
rising from the coffee. Square image.

A photo of a glossy magazine cover, the minimal blue cover has the large bold
words Nano Banana. The text is in a serif font and fills the view. No other
text. In front of the text there is a portrait of a person in a sleek and
minimal dress. She is playfully holding the number 2, which is the focal point.
Put the issue number and "Feb 2026" date in the corner along with a barcode. The
magazine is on a shelf against an orange plastered wall, within a designer store.

Mascot character for a developer tool: a friendly otter wearing a small
backpack, vector illustration, thick outlines, limited palette of teal and
sand, plain background

Abstract geometric background, overlapping translucent planes in indigo and
amber, soft grain, no text

{
  "code": 200,
  "data": {
    "taskId": "019ca8b2-77d1-7a04-8c2e-15f9b0d4a6e1",
    "status": "finished",
    "files": [
      {
        "fileUrl": "https://storage.api-stock.com/generated/img-1a.png",
        "fileType": "image"
      },
      {
        "fileUrl": "https://storage.api-stock.com/generated/img-1b.png",
        "fileType": "image"
      },
      {
        "fileUrl": "https://storage.api-stock.com/generated/img-1c.png",
        "fileType": "image"
      },
      {
        "fileUrl": "https://storage.api-stock.com/generated/img-1d.png",
        "fileType": "image"
      }
    ],
    "createdTime": "2026-02-28T12:41:02.000Z"
  }
}

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": "nano-banana-2",
    "input": {
      "prompt": "A brass orrery on a walnut desk, single window light, shallow depth of field",
      "size": "3:2",
      "resolution": "2K"
    }
  }'

{
  "code": 200,
  "data": {
    "taskId": "019ca8b2-77d1-7a04-8c2e-15f9b0d4a6e1",
    "status": "not_started",
    "createdAt": "2026-02-28T12:41:02.000Z"
  }
}

{
  "model": "gpt-image-2",
  "input": {
    "prompt": "A brass orrery on a walnut desk, single window light",
    "size": "3:2",
    "resolution": "2k",
    "quality": "high"
  }
}

{
  "model": "midjourney",
  "input": {
    "action": "imagine",
    "prompt": "A brass orrery on a walnut desk, single window light",
    "size": "3:2",
    "version": "7",
    "stylize": 250,
    "chaos": 15,
    "speed": "relax"
  }
}

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

type TaskFile = { fileUrl: string; fileType: "image" | "video" | "music" };

async function generateImage(prompt: string): Promise<string[]> {
  const create = await fetch(`${BASE}/generation/create`, {
    method: "POST",
    headers: {
      Authorization: `Bearer ${KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      model: "doubao-seedream-5-0-lite",
      input: { prompt, size: "1:1", resolution: "2K", outputFormat: "png" },
    }),
  });

  const created = await create.json();
  if (!create.ok) {
    throw new Error(`${created.error.code}: ${created.error.message}`);
  }

  const taskId: string = created.data.taskId;
  const deadline = Date.now() + 10 * 60_000;

  while (Date.now() < deadline) {
    await new Promise((r) => setTimeout(r, 3_000));

    const res = await fetch(`${BASE}/task/status/${taskId}`, {
      headers: { Authorization: `Bearer ${KEY}` },
    });
    const body = await res.json().catch(() => null);
    if (!res.ok) {
      if (res.status === 429) {
        const retryAfter = Number(res.headers.get("Retry-After") ?? 3);
        await new Promise((r) => setTimeout(r, retryAfter * 1000));
        continue;
      }
      const message = body?.error?.message ?? `${res.status} ${res.statusText}`;
      throw new Error(message);
    }
    const { data } = body;

    if (data.status === "finished") {
      return (data.files as TaskFile[]).map((f) => f.fileUrl);
    }
    if (data.status === "failed" || data.status === "expired") {
      throw new Error(data.errorMessage);
    }
  }

  throw new Error(`timed out waiting for ${taskId}`);
}

const urls = await generateImage("Isometric cutaway of a lighthouse");
console.log(urls.length); // → 1

{
  "code": 400,
  "error": {
    "message": "Resolution \"3K\" is not supported by model doubao-seedream-4-5",
    "type": "BadRequest",
    "code": "invalid_input"
  }
}

{
  "code": 200,
  "data": {
    "taskId": "019ca8b2-77d1-7a04-8c2e-15f9b0d4a6e1",
    "status": "failed",
    "createdTime": "2026-02-28T12:41:02.000Z",
    "errorMessage": "This generation may violate our content policy. Please try a different prompt."
  }
}