Flutter Midjourney客户端插件midjourney_client的使用

这是一个非官方的Midjourney客户端，它通过Discord账户令牌与真正的Midjourney机器人进行交互。截至目前，其稳定性尚未经过全面测试。因此，建议不要在生产环境中使用此客户端。

This is an unofficial client for Midjourney that interfaces with the authentic Midjourney Bot via a Discord account token. As of now, it’s stability has not been thoroughly tested. Consequently, it is advised against utilizing this client in production environments.

Install

For a flutter project, consider running this command:

flutter pub add midjourney_client

For a dart project, consider running this command:

dart pub add midjourney_client

This installs the midjourney_client library and its dependencies.

Usage

import 'dart:async';

import 'package:midjourney_client/midjourney_client.dart' as midjourney_client;

Future<void> main(List<Object> arguments) async {
  final client = midjourney_client.Midjourney();

  await client.initialize(
    channelId: Env.channelId,
    serverId: Env.serverId,
    token: Env.token,
  );

  final imagine = client.imagine('Elephant on a tree')..listen(print);

  final result = await imagine.last;

  final upscaled = client.upscale(result, 1)..listen(print);
  final uResult = await upscaled.last;

  print(uResult);
}

Set up

Pre-requisites:

How to get server id & channel id

Open Discord app
Open your server
Right click on the message inside the channel you want to use
Copy link to message, this should look like https://discord.com/channels/${SERVER_ID}/${CHANNEL_ID}/${MESSAGE_ID}
Extract SERVER_ID and CHANNEL_ID from the link

How to get token

This one is a bit tricky, but here’s how you can get it:

Login to discord web app
Open developer tools, head for Network tab
Send a message to the channel you want to use or reload the page
Click on a random request and go to request headers
Find Authorization header and extract the value, it is your token

Examples

These examples will instantiate a websocket connection to Discord Server and act as a Discord client sending messages to the channel specified by the CHANNEL_ID environment variable. The SERVER_ID environment variable is used to identify the server to which the channel belongs. The TOKEN environment variable is used to authenticate the client.

Imagine

This example will trigger /imagine command on the Midjourney Bot and print the result.

dart run --define=SERVER_ID="" --define=CHANNEL_ID="" --define=TOKEN="" example/imagine.dart

import 'dart:async';
import 'dart:io';

import 'package:midjourney_client/midjourney_client.dart' as midjourney_client;

import 'env.dart';

Future<void> main(List<Object> arguments) async {
  final client = midjourney_client.Midjourney();

  await client.initialize(
    channelId: Env.channelId,
    serverId: Env.serverId,
    token: Env.token,
  );

  final imagine = client.imagine('Cat in a hat')..listen(print);

  final result = await imagine.last;

  print('Result: $result');
  exit(0);
}

Variation

This example will trigger /imagine command on the Midjourney Bot, wait and trigger first variation.

dart run --define=SERVER_ID="" --define=CHANNEL_ID="" --define=TOKEN="" example/variations.dart

import 'dart:async';
import 'dart:io';

import 'package:midjourney_client/midjourney_client.dart' as midjourney_client;

import 'env.dart';

Future<void> main(List<Object> arguments) async {
  final client = midjourney_client.Midjourney();

  await client.initialize(
    channelId: Env.channelId,
    serverId: Env.serverId,
    token: Env.token,
  );

  final imagine = client.imagine('Cat with sword')..listen(print);

  final result = await imagine.last;

  final variation = client.variation(result, 1)..listen(print);

  final vResult = await variation.last;

  print(vResult);
  exit(0);
}

Upscale

This example will trigger /imagine command on the Midjourney Bot, wait and trigger first upscale.

dart run --define=SERVER_ID="" --define=CHANNEL_ID="" --define=TOKEN="" example/upscale.dart

import 'dart:async';
import 'dart:io';

import 'package:midjourney_client/midjourney_client.dart' as midjourney_client;

import 'env.dart';

Future<void> main(List<Object> arguments) async {
  final client = midjourney_client.Midjourney();

  await client.initialize(
    channelId: Env.channelId,
    serverId: Env.serverId,
    token: Env.token,
  );

  final imagine = client.imagine('Cat with a sword')..listen(print);

  final result = await imagine.last;

  final upscaled = client.upscale(result, 1)..listen(print);

  final uResult = await upscaled.last;

  print('Result: $uResult');
  exit(0);
}

更多关于Flutter Midjourney客户端插件midjourney_client的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

nodeper 1楼•5 小时前

更多关于Flutter Midjourney客户端插件midjourney_client的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

当然，下面是一个关于如何在Flutter项目中使用midjourney_client插件的示例代码。这个插件假设是用来与Midjourney API进行交互的（请注意，由于我无法直接访问外部库或实时API文档，以下代码是基于假设和通用实践编写的，实际使用时可能需要根据具体插件的API文档进行调整）。

首先，确保你已经在pubspec.yaml文件中添加了midjourney_client依赖：

dependencies:
  flutter:
    sdk: flutter
  midjourney_client: ^x.y.z  # 替换为实际的版本号

然后运行flutter pub get来安装依赖。

接下来，你可以在你的Flutter项目中这样使用midjourney_client插件：

import 'package:flutter/material.dart';
import 'package:midjourney_client/midjourney_client.dart';  // 假设插件提供了这个导入路径

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Midjourney Client Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MidjourneyDemoPage(),
    );
  }
}

class MidjourneyDemoPage extends StatefulWidget {
  @override
  _MidjourneyDemoPageState createState() => _MidjourneyDemoPageState();
}

class _MidjourneyDemoPageState extends State<MidjourneyDemoPage> {
  String? responseText;
  late MidjourneyClient midjourneyClient;

  @override
  void initState() {
    super.initState();
    // 初始化midjourneyClient，这里假设需要API密钥
    String apiKey = 'your_api_key_here';  // 替换为你的实际API密钥
    midjourneyClient = MidjourneyClient(apiKey: apiKey);
  }

  Future<void> fetchData() async {
    try {
      // 假设这是调用Midjourney API的方法
      var response = await midjourneyClient.createJourney(
        prompt: 'A beautiful landscape with mountains and a river',
        negativePrompt: 'Any people or buildings',
        width: 512,
        height: 512,
      );

      // 处理响应，这里假设response是一个包含图像URL的JSON对象
      setState(() {
        responseText = response['image_url'];  // 假设响应中包含一个image_url字段
      });
    } catch (e) {
      setState(() {
        responseText = 'Error: ${e.message}';
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Midjourney Client Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: fetchData,
              child: Text('Generate Image'),
            ),
            if (responseText != null)
              Image.network(responseText!),
            if (responseText != null && responseText!.startsWith('Error'))
              Text(responseText!),
          ],
        ),
      ),
    );
  }
}

在这个示例中：

我们导入了midjourney_client包。
在_MidjourneyDemoPageState中，我们初始化了MidjourneyClient实例，并传入了一个API密钥（这通常是必须的，用于身份验证）。
我们定义了一个fetchData方法，该方法调用midjourneyClient的createJourney方法来生成图像，并处理响应。
在UI中，我们有一个按钮来触发fetchData方法，并在成功获取图像URL后显示该图像。如果发生错误，则显示错误信息。

请注意，以上代码是基于假设的API和方法调用。实际使用时，你需要查阅midjourney_client插件的官方文档来了解正确的API调用方式和参数。特别是，API密钥的管理、错误处理、响应格式等都可能有所不同。