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SDK Configuration

Configure the AgentSDK with various options to customize behavior, timeouts, callbacks, and more.

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SDKConfig Interface

interface SDKConfig {
  agentId: string;
  agentSecret?: string;
  serverUrl?: string;
  timeout?: number;
  customFetch?: typeof fetch;
  onTokensReceived?: (tokens: TokenResponse) => void | Promise<void>;
  onTokensRefreshed?: (tokens: TokenResponse) => void | Promise<void>;
  onTokensRevoked?: () => void | Promise<void>;
}

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Configuration Options

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agentId (required)

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agentId
string
required
Your unique agent identifier. This is the client ID used in OAuth flows.
const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
});

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agentSecret (optional)

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agentSecret
string
Agent secret for confidential clients. Only required for initial registration and some server-side operations. Not needed for OAuth 2.1 with PKCE flows.
const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  agentSecret: "secure-secret-key", // Optional
});
Keep your agent secret secure! Never expose it in client-side code or public repositories.

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serverUrl (optional)

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serverUrl
string
The base URL of the Auth-Agent server. Defaults to the environment variable AUTH_SERVER_URL or the public Auth-Agent API.
const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  serverUrl: "https://your-auth-server.com",
});

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timeout (optional)

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timeout
number
default:"10000"
Request timeout in milliseconds. All API requests will abort after this duration.
const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  timeout: 15000, // 15 seconds
});

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customFetch (optional)

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customFetch
typeof fetch
Custom fetch implementation. Useful for testing, adding custom interceptors, or using a different HTTP client.
import fetch from "node-fetch";

const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  customFetch: fetch,
});
Example with custom headers: 
const customFetch: typeof fetch = async (url, options) => {
  return fetch(url, {
    ...options,
    headers: {
      ...options?.headers,
      "X-Custom-Header": "value",
    },
  });
};

const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  customFetch,
});

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onTokensReceived (optional)

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onTokensReceived
(tokens: TokenResponse) => void | Promise<void>
Callback invoked when new tokens are received (after OAuth code exchange). Use this to store tokens in your preferred storage system.
const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  onTokensReceived: async (tokens) => {
    // Store in database
    await db.tokens.create({
      accessToken: tokens.access_token,
      refreshToken: tokens.refresh_token,
      idToken: tokens.id_token,
      expiresAt: Date.now() + tokens.expires_in * 1000,
    });

    // Or store in Redis
    await redis.setex(
      `tokens:${agentId}`,
      tokens.expires_in,
      JSON.stringify(tokens)
    );
  },
});

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onTokensRefreshed (optional)

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onTokensRefreshed
(tokens: TokenResponse) => void | Promise<void>
Callback invoked when tokens are refreshed. Use this to update stored tokens.
const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  onTokensRefreshed: async (tokens) => {
    // Update tokens in storage
    await db.tokens.update({
      where: { agentId },
      data: {
        accessToken: tokens.access_token,
        refreshToken: tokens.refresh_token,
        expiresAt: Date.now() + tokens.expires_in * 1000,
      },
    });
  },
});

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onTokensRevoked (optional)

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onTokensRevoked
() => void | Promise<void>
Callback invoked when tokens are revoked. Use this to clear stored tokens.
const sdk = new AgentSDK({
  agentId: "my-ai-agent-123",
  onTokensRevoked: async () => {
    // Clear tokens from storage
    await db.tokens.delete({
      where: { agentId },
    });

    // Or clear from Redis
    await redis.del(`tokens:${agentId}`);
  },
});

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Complete Example

Here’s a complete configuration example with all options: 
import { AgentSDK } from "ai-auth";
import Database from "./database";
import fetch from "node-fetch";

const db = new Database();

const sdk = new AgentSDK({
  // Required
  agentId: process.env.AGENT_ID!,

  // Optional authentication
  agentSecret: process.env.AGENT_SECRET,

  // Server configuration
  serverUrl: process.env.AUTH_SERVER_URL || "https://api.auth-agent.com",
  timeout: 15000,

  // Custom fetch
  customFetch: fetch,

  // Token lifecycle callbacks
  onTokensReceived: async (tokens) => {
    console.log("Received new tokens");
    await db.saveTokens({
      agentId: process.env.AGENT_ID!,
      accessToken: tokens.access_token,
      refreshToken: tokens.refresh_token,
      idToken: tokens.id_token,
      expiresAt: Date.now() + tokens.expires_in * 1000,
      scope: tokens.scope,
    });
  },

  onTokensRefreshed: async (tokens) => {
    console.log("Refreshed tokens");
    await db.updateTokens({
      agentId: process.env.AGENT_ID!,
      accessToken: tokens.access_token,
      refreshToken: tokens.refresh_token,
      expiresAt: Date.now() + tokens.expires_in * 1000,
    });
  },

  onTokensRevoked: async () => {
    console.log("Tokens revoked");
    await db.clearTokens(process.env.AGENT_ID!);
  },
});

export default sdk;

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Environment Variables

You can use environment variables for sensitive configuration:
.env
AGENT_ID=my-ai-agent-123
AGENT_SECRET=your-secret-key
AUTH_SERVER_URL=https://api.auth-agent.com

import { AgentSDK } from "ai-auth";

const sdk = new AgentSDK({
  agentId: process.env.AGENT_ID!,
  agentSecret: process.env.AGENT_SECRET,
  serverUrl: process.env.AUTH_SERVER_URL,
});

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Best Practices

Always implement the onTokensReceived, onTokensRefreshed, and onTokensRevoked callbacks to properly manage token lifecycle. Use encrypted storage for sensitive tokens.
Set timeouts based on your network conditions and server response times. Default is 10 seconds, but you may need longer for slower networks.
Never commit agent secrets to version control. Use environment variables or secure secret management systems.
Implement proper error handling for all SDK methods. Use try-catch blocks and handle specific error codes.

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Next Steps

AgentSDK Methods

Explore all available SDK methods

Token Manager

Learn about token management