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Introduction

Flux is an AI image service provided by Ace Data Cloud, utilizing the Black Forest Labs Flux image generation model. Through the unified API of Ace Data Cloud, you can quickly integrate Flux using JavaScript to achieve text-to-image generation, image editing, multiple models, custom sizes, and more.

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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 Flux API is: 
POST https://api.acedata.cloud/flux/images
This example uses the flux-pro-1.1 model.
Available models include: flux-dev, flux-pro, flux-pro-1.1, flux-pro-1.1-ultra, flux-kontext-pro, flux-kontext-max. Complete JavaScript code example: 
const response = await fetch("https://api.acedata.cloud/flux/images", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_TOKEN",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "action": "generate",
  "prompt": "A white siamese cat sitting on a windowsill",
  "model": "flux-pro-1.1",
  "size": "1024x1024"
}),
});

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 callFlux(data) {
  const response = await fetch("https://api.acedata.cloud/flux/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 your API Token
403Insufficient balance or no access rights
429Request rate limit exceeded
500Internal server error

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Next Steps