🔧 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
-
内存泄漏
- 监控内存使用
- 实现适当的清理
- 使用WeakMap进行缓存
-
性能瓶颈
- 分析慢操作
- 实现批处理
- 使用连接池
-
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
- 基础设施指南 用于部署
- 信任引擎文档 用于评分系统
- 自动交易指南 用于交易功能
- 微调指南 用于模型优化
- Eliza在TEE中的应用 用于TEE集成