Skip to main content

🔧 高级使用指南

本指南涵盖了Eliza的高级功能和能力,包括复杂的集成、自定义服务和专用插件。

服务集成

视频处理服务

Eliza通过VideoService支持高级视频处理功能:

import { VideoService } from "@elizaos/core/plugin-node";

// 初始化服务
const videoService = new VideoService();

// 处理视频内容
const result = await videoService.processVideo(url, runtime);

主要功能:

  • 自动视频下载
  • 转录支持
  • 字幕提取
  • 缓存管理
  • 队列处理

图像处理

ImageDescriptionService提供高级图像分析:

import { ImageDescriptionService } from "@elizaos/core/plugin-node";

const imageService = new ImageDescriptionService();
const description = await imageService.describeImage(imageUrl, "gpu", runtime);

功能:

  • 本地和云处理选项
  • CUDA加速支持
  • 自动格式处理
  • GIF帧提取

区块链集成

Solana集成

Solana插件提供全面的区块链功能:

import { solanaPlugin } from "@elizaos/core/plugin-solana";

// 初始化插件
runtime.registerPlugin(solanaPlugin);

代币操作

// 购买代币
const swapResult = await swapToken(
connection,
walletPublicKey,
inputTokenCA,
outputTokenCA,
amount,
);

// 出售代币
const sellResult = await sellToken({
sdk,
seller: walletKeypair,
mint: tokenMint,
amount: sellAmount,
priorityFee,
allowOffCurve: false,
slippage: "1",
connection,
});

信任评分系统

const trustScoreManager = new TrustScoreManager(tokenProvider, trustScoreDb);

// 生成信任评分
const score = await trustScoreManager.generateTrustScore(
tokenAddress,
recommenderId,
recommenderWallet,
);

// 监控交易表现
await trustScoreManager.createTradePerformance(runtime, tokenAddress, userId, {
buy_amount: amount,
is_simulation: false,
});

自定义服务

语音生成

实现文本到语音功能:

class SpeechService extends Service implements ISpeechService {
async generate(runtime: IAgentRuntime, text: string): Promise<Readable> {
if (runtime.getSetting("ELEVENLABS_XI_API_KEY")) {
return textToSpeech(runtime, text);
}

const { audio } = await synthesize(text, {
engine: "vits",
voice: "en_US-hfc_female-medium",
});

return Readable.from(audio);
}
}

PDF处理

处理PDF文档分析:

class PdfService extends Service {
async convertPdfToText(pdfBuffer: Buffer): Promise<string> {
const pdf = await getDocument({ data: pdfBuffer }).promise;
const numPages = pdf.numPages;
const textPages = [];

for (let pageNum = 1; pageNum <= numPages; pageNum++) {
const page = await pdf.getPage(pageNum);
const textContent = await page.getTextContent();
const pageText = textContent.items
.filter(isTextItem)
.map((item) => item.str)
.join(" ");
textPages.push(pageText);
}

return textPages.join("\n");
}
}

高级内存管理

可检索内存系统

class MemoryManager {
async getMemories({
agentId,
roomId,
count,
}: {
agentId: string;
roomId: string;
count: number;
}): Promise<Memory[]> {
// 实现内存检索逻辑
}

async createMemory(
memory: Memory,
allowDuplicates: boolean = false,
): Promise<void> {
// 实现内存存储逻辑
}
}

信任评分数据库

实现高级评分系统:

class TrustScoreDatabase {
async calculateValidationTrust(tokenAddress: string): number {
const sql = `
SELECT rm.trust_score
FROM token_recommendations tr
JOIN recommender_metrics rm ON tr.recommender_id = rm.recommender_id
WHERE tr.token_address = ?;
`;

const rows = this.db.prepare(sql).all(tokenAddress);
if (rows.length === 0) return 0;

const totalTrust = rows.reduce((acc, row) => acc + row.trust_score, 0);
return totalTrust / rows.length;
}
}

插件开发

创建自定义插件

const customPlugin: Plugin = {
name: "custom-plugin",
description: "Custom Plugin for Eliza",
actions: [
// 自定义操作
],
evaluators: [
// 自定义评估器
],
providers: [
// 自定义提供者
],
};

高级操作开发

export const complexAction: Action = {
name: "COMPLEX_ACTION",
similes: ["ALTERNATIVE_NAME", "OTHER_NAME"],
validate: async (runtime: IAgentRuntime, message: Memory) => {
// 实现验证逻辑
return true;
},
handler: async (
runtime: IAgentRuntime,
message: Memory,
state: State,
options: { [key: string]: unknown },
callback?: HandlerCallback,
): Promise<boolean> => {
// 实现复杂处理逻辑
return true;
},
};

高级配置

自定义运行时配置

const customRuntime = new AgentRuntime({
databaseAdapter: new PostgresDatabaseAdapter(config),
modelProvider: new OpenAIProvider(apiKey),
plugins: [solanaPlugin, customPlugin],
services: [
new VideoService(),
new ImageDescriptionService(),
new SpeechService(),
],
});

高级模型配置

const modelConfig = {
modelClass: ModelClass.LARGE,
temperature: 0.7,
maxTokens: 2000,
topP: 0.9,
frequencyPenalty: 0.5,
presencePenalty: 0.5,
};

const response = await generateText({
runtime,
context: prompt,
...modelConfig,
});

性能优化

缓存策略

class CacheManager {
private cache: NodeCache;
private cacheDir: string;

constructor() {
this.cache = new NodeCache({ stdTTL: 300 });
this.cacheDir = path.join(__dirname, "cache");
this.ensureCacheDirectoryExists();
}

private async getCachedData<T>(key: string): Promise<T | null> {
// 实现分层缓存策略
}
}

队列管理

class QueueManager {
private queue: string[] = [];
private processing: boolean = false;

async processQueue(): Promise<void> {
if (this.processing || this.queue.length === 0) {
return;
}

this.processing = true;
while (this.queue.length > 0) {
const item = this.queue.shift();
await this.processItem(item);
}
this.processing = false;
}
}

最佳实践

错误处理

try {
const result = await complexOperation();
if (!result) {
throw new Error("Operation failed");
}
return result;
} catch (error) {
console.error("Error in operation:", error);
await errorReporting.log(error);
throw new OperationalError("Failed to complete operation", {
cause: error,
});
}

资源管理

class ResourceManager {
private resources: Map<string, Resource> = new Map();

async acquire(id: string): Promise<Resource> {
// 实现带超时的资源获取
}

async release(id: string): Promise<void> {
// 实现资源清理
}
}

故障排除

常见问题

  1. 内存泄漏

    • 监控内存使用
    • 实现适当的清理
    • 使用WeakMap进行缓存
  2. 性能瓶颈

    • 分析慢操作
    • 实现批处理
    • 使用连接池
  3. 集成问题

    • 验证API凭证
    • 检查网络连接
    • 验证请求格式

调试

const debug = require("debug")("eliza:advanced");

debug("详细操作信息: %O", {
operation: "complexOperation",
parameters: params,
result: result,
});

进一步资源