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Introduction

Nano Banana is an AI image service provided by Ace Data Cloud, based on Gemini’s image generation service. Through the unified API of Ace Data Cloud, you can quickly integrate Nano Banana using JavaScript to achieve text-to-image, image editing, multiple aspect ratios, high resolution, and other features.

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Prerequisites

  • Have an Ace Data Cloud account and obtain an API Token
  • Node.js 18+ or a modern browser environment

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Basic Usage

The main endpoint for calling the Nano Banana API is: 
POST https://api.acedata.cloud/nano-banana/images
This example uses the nano-banana-2 model.
Available models include: nano-banana, nano-banana-2, nano-banana-pro. Complete JavaScript code example: 
const response = await fetch("https://api.acedata.cloud/nano-banana/images", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_TOKEN",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "action": "generate",
  "prompt": "A white siamese cat",
  "model": "nano-banana-2",
  "aspect_ratio": "1:1"
}),
});

const result = await response.json();
console.log(result);
Please replace YOUR_API_TOKEN with the actual token you obtained from the Ace Data Cloud platform.

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Response Handling

It is recommended to check the response status code and handle errors: 
if (response.ok) {
  const result = await response.json();
  console.log("Call succeeded:", result);
} else {
  console.error(`Call failed, status code: ${response.status}`);
  const error = await response.text();
  console.error(error);
}

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Node.js Wrapper

It is recommended to encapsulate the call into a reusable function: 
async function callNanoBanana(data) {
  const response = await fetch("https://api.acedata.cloud/nano-banana/images", {
    method: "POST",
    headers: {
      "Authorization": `Bearer ${process.env.ACE_API_TOKEN}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify(data),
  });
  if (!response.ok) throw new Error(`API error: ${response.status}`);
  return response.json();
}

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Error Handling

Common error codes:
Status CodeDescription
401Authentication failed, please check API Token
403Insufficient balance or no access rights
429Request rate limit exceeded
500Internal server error

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Next Steps