> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aireiter.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Midjourney V8.2 图片生成

> - 异步处理模式，返回任务ID用于后续查询
- 每次请求生成 4 张独立图片，按次计费，不按张数
- 支持文生图、参考图（最多 4 张）、风格参考、编辑图片
- 画幅、画质、速度用参数选择，无需在提示词里手写 Midjourney 参数


export const apiKeyUrl = 'https://aireiter.com/keys';

## Authorizations

<ParamField header="Authorization" type="string" required>
  所有接口均需要使用Bearer Token进行认证

  获取 API Key：

  访问 <a href={apiKeyUrl} target="_blank">API Key 管理页面</a> 获取您的 API Key

  使用时在请求头中添加：

  ```
  Authorization: Bearer YOUR_API_KEY
  ```
</ParamField>

## Body

<ParamField body="model" type="string" required>
  模型名称，固定为 `"mj_v8_2"`
</ParamField>

<ParamField body="params" type="object" required>
  模型参数对象

  <Expandable title="params 对象属性">
    <ParamField body="prompt" type="string" required>
      图像的文本描述，用自然语言写想要的画面

      * 版本、画幅、画质、速度等 Midjourney 参数由下方字段自动添加，无需手写
      * 提示词里手写的 `--` 参数（如 `--ar`、`--v`、`--fast`）会被忽略，从第一个 `--` 起的内容都不会生效
      * 使用编辑图片（`use_edit`）时，可直接写修改指令，例如："Render this logo as a hand drawn pencil sketch"
    </ParamField>

    <ParamField body="image_url" type="string[]">
      参考图（Image Prompt）的 URL 列表，影响成品的内容、构图和配色

      * 最多 4 张图片，按传入顺序使用
      * 不传则为文生图
      * 支持以下两种格式：
        1. 公开可访问的 URL（不能要求登录、Cookie 或临时授权）
        2. Base64 编码格式
           * 必须使用完整的 Data URI 格式：`data:image/{格式};base64,{base64数据}`
           * 支持的图片格式：jpeg、png、webp
           * 示例：`data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAYABg...`
           * ⚠️ 注意：必须包含 `data:image/jpeg;base64,` 前缀部分，base64 图片大小不超过 10MB
    </ParamField>

    <ParamField body="image_weight" type="number" default="1">
      参考图权重（对应 `--iw`），成品贴近参考图的程度

      * 取值范围 0-3，默认 1，越大越像参考图
      * 仅在传入 `image_url` 时生效
    </ParamField>

    <ParamField body="aspect_ratio" type="string" default="1:1">
      图像宽高比（对应 `--ar`）

      支持的宽高比：

      * `1:1` - 正方形（默认）
      * `16:9` - 横向宽屏
      * `9:16` - 纵向竖屏
      * `4:3` - 横向 4:3
      * `3:4` - 纵向 3:4
      * `3:2` - 横向 3:2
      * `2:3` - 纵向 2:3
    </ParamField>

    <ParamField body="quality" type="string" default="sd">
      画质档位

      支持的取值：

      * `sd` - 标准画质（默认），1:1 下每张为 1024×1024
      * `hd` - 原生高清，1:1 下每张为 2048×2048

      其他画幅按比例换算，实际尺寸以返回图片为准。
    </ParamField>

    <ParamField body="speed" type="string" default="fast">
      生成速度（对应 `--fast` / `--relax`）

      支持的取值：

      * `fast` - 快速档（默认）
      * `relax` - 慢速档，排队时间更长

      慢速档由单独的通道处理，实测比快速档慢一倍以上。
    </ParamField>

    <ParamField body="use_style_ref" type="boolean" default="false">
      是否开启风格参考（对应 `--sref`）

      借用另一张图的画风、配色和质感，不会照搬其中的人物或物体。设为 `true` 时必须传 `style_image_url`。
    </ParamField>

    <ParamField body="style_image_url" type="string">
      风格参考图，1 张

      * 仅在 `use_style_ref` 为 `true` 时生效，且此时必填
      * 格式要求同 `image_url`
    </ParamField>

    <ParamField body="style_weight" type="number" default="100">
      风格强度（对应 `--sw`）

      * 取值范围 0-1000，默认 100
      * 仅在 `use_style_ref` 为 `true` 时生效
    </ParamField>

    <ParamField body="use_edit" type="boolean" default="false">
      是否开启编辑图片（对应 `--edit`）

      以 `prompt` 作为修改指令编辑一张现有图片。设为 `true` 时必须传 `edit_image_url`。可与 `image_url`、风格参考同时使用。
    </ParamField>

    <ParamField body="edit_image_url" type="string">
      待编辑的图片，1 张

      * 仅在 `use_edit` 为 `true` 时生效，且此时必填
      * 格式要求同 `image_url`
    </ParamField>
  </Expandable>
</ParamField>

<ParamField body="out_task_id" type="string" required>
  发起方任务ID

  用户自定义的任务标识，必填。仅支持字母、数字、`_`、`-`，长度 1-64
</ParamField>

## Response

<ResponseField name="out_task_id" type="string">
  发起方任务ID，可用于查询结果
</ResponseField>

<ResponseField name="status" type="string">
  初始状态，固定为 `"pending"`
</ResponseField>

<ResponseField name="created_at" type="string">
  创建时间（ISO 格式）
</ResponseField>

任务完成后，通过查询接口获取结果：`data.output` 中包含 4 张图片，按原四宫格左上、右上、左下、右下的顺序排列。生成通常需要几分钟，请勿因等待而重复提交。

<RequestExample>
  ```bash cURL theme={null}
  curl --request POST \
    --url https://aireiter.com/api/openapi/submit \
    --header 'Authorization: Bearer <token>' \
    --header 'Content-Type: application/json' \
    --data '{
      "model": "mj_v8_2",
      "params": {
        "prompt": "A blue robot watering tulips in a sunny garden, storybook illustration",
        "image_url": [
          "https://example.com/product.png",
          "https://example.com/style.png"
        ],
        "aspect_ratio": "16:9",
        "quality": "hd",
        "speed": "fast"
      },
      "out_task_id": "my_task_123456"
    }'
  ```

  ```python Python theme={null}
  import requests

  url = "https://aireiter.com/api/openapi/submit"

  payload = {
      "model": "mj_v8_2",
      "params": {
          "prompt": "A blue robot watering tulips in a sunny garden, storybook illustration",
          "image_url": [
              "https://example.com/product.png",
              "https://example.com/style.png"
          ],
          "aspect_ratio": "16:9",
          "quality": "hd",
          "speed": "fast"
      },
      "out_task_id": "my_task_123456"
  }

  headers = {
      "Authorization": "Bearer <token>",
      "Content-Type": "application/json"
  }

  response = requests.post(url, json=payload, headers=headers)

  print(response.json())
  ```

  ```javascript JavaScript theme={null}
  const url = "https://aireiter.com/api/openapi/submit";

  const payload = {
    model: "mj_v8_2",
    params: {
      prompt: "A blue robot watering tulips in a sunny garden, storybook illustration",
      image_url: [
        "https://example.com/product.png",
        "https://example.com/style.png"
      ],
      aspect_ratio: "16:9",
      quality: "hd",
      speed: "fast"
    },
    out_task_id: "my_task_123456"
  };

  const headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
  };

  fetch(url, {
    method: "POST",
    headers: headers,
    body: JSON.stringify(payload)
  })
    .then(response => response.json())
    .then(data => console.log(data))
    .catch(error => console.error('Error:', error));
  ```

  ```go Go theme={null}
  package main

  import (
      "bytes"
      "encoding/json"
      "fmt"
      "io"
      "net/http"
  )

  func main() {
      url := "https://aireiter.com/api/openapi/submit"

      payload := map[string]interface{}{
          "model": "mj_v8_2",
          "params": map[string]interface{}{
              "prompt":       "A blue robot watering tulips in a sunny garden, storybook illustration",
              "image_url":    []string{"https://example.com/product.png", "https://example.com/style.png"},
              "aspect_ratio": "16:9",
              "quality":   "hd",
              "speed":   "fast",
          },
          "out_task_id": "my_task_123456",
      }

      jsonData, _ := json.Marshal(payload)

      req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
      req.Header.Set("Authorization", "Bearer <token>")
      req.Header.Set("Content-Type", "application/json")

      client := &http.Client{}
      resp, err := client.Do(req)
      if err != nil {
          panic(err)
      }
      defer resp.Body.Close()

      body, _ := io.ReadAll(resp.Body)
      fmt.Println(string(body))
  }
  ```

  ```java Java theme={null}
  import java.net.http.HttpClient;
  import java.net.http.HttpRequest;
  import java.net.http.HttpResponse;
  import java.net.URI;

  public class Main {
      public static void main(String[] args) throws Exception {
          String url = "https://aireiter.com/api/openapi/submit";

          String payload = """
          {
            "model": "mj_v8_2",
            "params": {
              "prompt": "A blue robot watering tulips in a sunny garden, storybook illustration",
              "image_url": [
                "https://example.com/product.png",
                "https://example.com/style.png"
              ],
              "aspect_ratio": "16:9",
              "quality": "hd",
              "speed": "fast"
            },
            "out_task_id": "my_task_123456"
          }
          """;

          HttpClient client = HttpClient.newHttpClient();
          HttpRequest request = HttpRequest.newBuilder()
              .uri(URI.create(url))
              .header("Authorization", "Bearer <token>")
              .header("Content-Type", "application/json")
              .POST(HttpRequest.BodyPublishers.ofString(payload))
              .build();

          HttpResponse<String> response = client.send(request,
              HttpResponse.BodyHandlers.ofString());

          System.out.println(response.body());
      }
  }
  ```

  ```php PHP theme={null}
  <?php

  $url = "https://aireiter.com/api/openapi/submit";

  $payload = [
      "model" => "mj_v8_2",
      "params" => [
          "prompt" => "A blue robot watering tulips in a sunny garden, storybook illustration",
          "image_url" => [
              "https://example.com/product.png",
              "https://example.com/style.png"
          ],
          "aspect_ratio" => "16:9",
          "quality" => "hd",
          "speed" => "fast"
      ],
      "out_task_id" => "my_task_123456"
  ];

  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
  curl_setopt($ch, CURLOPT_HTTPHEADER, [
      "Authorization: Bearer <token>",
      "Content-Type: application/json"
  ]);

  $response = curl_exec($ch);
  curl_close($ch);

  echo $response;
  ?>
  ```

  ```ruby Ruby theme={null}
  require 'net/http'
  require 'json'
  require 'uri'

  url = URI("https://aireiter.com/api/openapi/submit")

  payload = {
    model: "mj_v8_2",
    params: {
      prompt: "A blue robot watering tulips in a sunny garden, storybook illustration",
      image_url: [
        "https://example.com/product.png",
        "https://example.com/style.png"
      ],
      aspect_ratio: "16:9",
      quality: "hd",
      speed: "fast"
    },
    out_task_id: "my_task_123456"
  }

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true

  request = Net::HTTP::Post.new(url)
  request["Authorization"] = "Bearer <token>"
  request["Content-Type"] = "application/json"
  request.body = payload.to_json

  response = http.request(request)
  puts response.body
  ```

  ```swift Swift theme={null}
  import Foundation

  let url = URL(string: "https://aireiter.com/api/openapi/submit")!

  let payload: [String: Any] = [
      "model": "mj_v8_2",
      "params": [
          "prompt": "A blue robot watering tulips in a sunny garden, storybook illustration",
          "image_url": [
              "https://example.com/product.png",
              "https://example.com/style.png"
          ],
          "aspect_ratio": "16:9",
          "quality": "hd",
          "speed": "fast"
      ],
      "out_task_id": "my_task_123456"
  ]

  var request = URLRequest(url: url)
  request.httpMethod = "POST"
  request.setValue("Bearer <token>", forHTTPHeaderField: "Authorization")
  request.setValue("application/json", forHTTPHeaderField: "Content-Type")
  request.httpBody = try? JSONSerialization.data(withJSONObject: payload)

  let task = URLSession.shared.dataTask(with: request) { data, response, error in
      if let error = error {
          print("Error: \(error)")
          return
      }

      if let data = data, let responseString = String(data: data, encoding: .utf8) {
          print(responseString)
      }
  }

  task.resume()
  ```

  ```csharp C# theme={null}
  using System;
  using System.Net.Http;
  using System.Text;
  using System.Threading.Tasks;

  class Program
  {
      static async Task Main(string[] args)
      {
          var url = "https://aireiter.com/api/openapi/submit";

          var payload = @"{
              ""model"": ""mj_v8_2"",
              ""params"": {
                  ""prompt"": ""A blue robot watering tulips in a sunny garden, storybook illustration"",
                  ""image_url"": [
                      ""https://example.com/product.png"",
                      ""https://example.com/style.png""
                  ],
                  ""aspect_ratio"": ""16:9"",
                  ""quality"": ""hd"",
                  ""speed"": ""fast""
              },
              ""out_task_id"": ""my_task_123456""
          }";

          using var client = new HttpClient();
          client.DefaultRequestHeaders.Add("Authorization", "Bearer <token>");

          var content = new StringContent(payload, Encoding.UTF8, "application/json");
          var response = await client.PostAsync(url, content);
          var result = await response.Content.ReadAsStringAsync();

          Console.WriteLine(result);
      }
  }
  ```

  ```c C theme={null}
  #include <stdio.h>
  #include <curl/curl.h>

  int main(void) {
      CURL *curl;
      CURLcode res;

      curl_global_init(CURL_GLOBAL_DEFAULT);
      curl = curl_easy_init();

      if(curl) {
          const char *url = "https://aireiter.com/api/openapi/submit";
          const char *payload = "{"
              "\"model\":\"mj_v8_2\","
              "\"params\":{"
                  "\"prompt\":\"A blue robot watering tulips in a sunny garden, storybook illustration\","
                  "\"image_url\":[\"https://example.com/product.png\",\"https://example.com/style.png\"],"
                  "\"aspect_ratio\":\"16:9\","
                  "\"quality\":\"hd\"",
                  "\"speed\":\"fast\""
              "},"
              "\"out_task_id\":\"my_task_123456\""
          "}";

          struct curl_slist *headers = NULL;
          headers = curl_slist_append(headers, "Authorization: Bearer <token>");
          headers = curl_slist_append(headers, "Content-Type: application/json");

          curl_easy_setopt(curl, CURLOPT_URL, url);
          curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
          curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

          res = curl_easy_perform(curl);

          if(res != CURLE_OK) {
              fprintf(stderr, "curl_easy_perform() failed: %s\n",
                      curl_easy_strerror(res));
          }

          curl_slist_free_all(headers);
          curl_easy_cleanup(curl);
      }

      curl_global_cleanup();
      return 0;
  }
  ```

  ```objectivec Objective-C theme={null}
  #import <Foundation/Foundation.h>

  int main(int argc, const char * argv[]) {
      @autoreleasepool {
          NSURL *url = [NSURL URLWithString:@"https://aireiter.com/api/openapi/submit"];

          NSDictionary *payload = @{
              @"model": @"mj_v8_2",
              @"params": @{
                  @"prompt": @"A blue robot watering tulips in a sunny garden, storybook illustration",
                  @"image_url": @[@"https://example.com/product.png", @"https://example.com/style.png"],
                  @"aspect_ratio": @"16:9",
                  @"quality": @"hd",
                  @"speed": @"fast"
              },
              @"out_task_id": @"my_task_123456"
          };

          NSError *error;
          NSData *jsonData = [NSJSONSerialization dataWithJSONObject:payload
                                                            options:0
                                                              error:&error];

          NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
          [request setHTTPMethod:@"POST"];
          [request setValue:@"Bearer <token>" forHTTPHeaderField:@"Authorization"];
          [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
          [request setHTTPBody:jsonData];

          NSURLSessionDataTask *task = [[NSURLSession sharedSession]
              dataTaskWithRequest:request
              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                  if (error) {
                      NSLog(@"Error: %@", error);
                      return;
                  }
                  NSString *result = [[NSString alloc] initWithData:data
                                                          encoding:NSUTF8StringEncoding];
                  NSLog(@"%@", result);
              }];

          [task resume];
          [[NSRunLoop mainRunLoop] run];
      }
      return 0;
  }
  ```

  ```ocaml OCaml theme={null}
  (* Requires cohttp and yojson libraries *)
  open Lwt
  open Cohttp
  open Cohttp_lwt_unix

  let url = "https://aireiter.com/api/openapi/submit"

  let payload = {|{
    "model": "mj_v8_2",
    "params": {
      "prompt": "A blue robot watering tulips in a sunny garden, storybook illustration",
      "image_url": [
        "https://example.com/product.png",
        "https://example.com/style.png"
      ],
      "aspect_ratio": "16:9",
      "quality": "hd",
      "speed": "fast"
    },
    "out_task_id": "my_task_123456"
  }|}

  let () =
    let headers = Header.init ()
      |> fun h -> Header.add h "Authorization" "Bearer <token>"
      |> fun h -> Header.add h "Content-Type" "application/json"
    in
    let body = Cohttp_lwt.Body.of_string payload in

    let response = Client.post ~headers ~body (Uri.of_string url) >>= fun (resp, body) ->
      body |> Cohttp_lwt.Body.to_string >|= fun body_str ->
      print_endline body_str
    in
    Lwt_main.run response
  ```

  ```dart Dart theme={null}
  import 'dart:convert';
  import 'package:http/http.dart' as http;

  void main() async {
    final url = Uri.parse('https://aireiter.com/api/openapi/submit');

    final payload = {
      'model': 'mj_v8_2',
      'params': {
        'prompt': 'A blue robot watering tulips in a sunny garden, storybook illustration',
        'image_url': [
          'https://example.com/product.png',
          'https://example.com/style.png'
        ],
        'aspect_ratio': '16:9',
        'quality': 'hd',
        'speed': 'fast'
      },
      'out_task_id': 'my_task_123456'
    };

    final response = await http.post(
      url,
      headers: {
        'Authorization': 'Bearer <token>',
        'Content-Type': 'application/json'
      },
      body: jsonEncode(payload),
    );

    print(response.body);
  }
  ```

  ```r R theme={null}
  library(httr)
  library(jsonlite)

  url <- "https://aireiter.com/api/openapi/submit"

  payload <- list(
    model = "mj_v8_2",
    params = list(
      prompt = "A blue robot watering tulips in a sunny garden, storybook illustration",
      image_url = c(
        "https://example.com/product.png",
        "https://example.com/style.png"
      ),
      aspect_ratio = "16:9",
      quality = "hd",
      speed = "fast"
    ),
    out_task_id = "my_task_123456"
  )

  response <- POST(
    url,
    add_headers(
      Authorization = "Bearer <token>",
      `Content-Type` = "application/json"
    ),
    body = toJSON(payload, auto_unbox = TRUE),
    encode = "raw"
  )

  cat(content(response, "text"))
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "statusCode": 200,
    "message": "",
    "data": {
      "out_task_id": "my_task_123456",
      "status": "pending",
      "created_at": "2026-10-08T06:03:28.242Z"
    }
  }
  ```

  ```json 400 theme={null}
  {
    "statusCode": 400,
    "message": "请求参数无效",
    "ok": false
  }
  ```

  ```json 401 theme={null}
  {
    "error": {
      "code": 401,
      "message": "身份验证失败，请检查您的API密钥"
    }
  }
  ```

  ```json 433 theme={null}
  {
    "error": {
      "code": 433,
      "message": "账户余额不足，请充值后再试"
    }
  }
  ```

  ```json 500 theme={null}
  {
    "error": {
      "code": 500,
      "message": "服务器内部错误，请稍后重试"
    }
  }
  ```
</ResponseExample>


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