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Please give me a code sample on how to set up an agent in AFJ, with websocket and mediator
Agent Framework JavaScript
Please give me a code sample on how to set up an agent in AFJ, with websocket and mediator
To set up an agent in Agent Framework JavaScript (AFJ) with WebSocket transport and a mediator, you need to follow a few steps. Here's a basic example to illustrate how you might set up an agent with these specifications:
Install AFJ: Ensure that you have AFJ version 0.4.2 installed in your project.
Import Necessary Modules: Import the required modules from AFJ.
Initialize the Agent: Create a new agent instance with the necessary configuration, including WebSocket transport and mediator configuration.
Start the Agent: Start the agent to begin listening for incoming connections and messages.
Here's a code snippet that demonstrates these steps:
// Import required modules from AFJ
const { Agent, HttpOutboundTransport, WsOutboundTransport, InitConfig } = require('@hyperledger/aries-framework-javascript');
const { WebSocketTransport } = require('@hyperledger/aries-framework-javascript/build/src/transport/WsOutboundTransport');
// Define your agent configuration
const agentConfig = new InitConfig({
label: 'YourAgentName',
walletConfig: { id: 'yourWalletId' },
walletCredentials: { key: 'yourWalletKey' },
autoAcceptConnections: true,
mediatorConnectionsInvite: 'YOUR_MEDIATOR_INVITE_URL', // replace with your mediator invite URL
// Define WebSocket transport
transports: [new WsOutboundTransport()],
// Additional configuration as needed
});
// Initialize the agent
const agent = new Agent(agentConfig);
// Add transports to the agent
agent.registerOutboundTransport(new HttpOutboundTransport());
agent.registerOutboundTransport(new WsOutboundTransport());
// Start the agent
agent.initialize().then(() => {
console.log('Agent has been initialized');
// Your agent is now ready to connect to the mediator and handle connections
}).catch(error => {
console.error('Error during agent initialization', error);
});
This code sets up an AFJ agent with the specified configurations. Remember to replace 'YOUR_MEDIATOR_INVITE_URL' with the actual invite URL of the mediator you intend to use. Also, ensure that the wallet ID and key are securely managed.
Please note that this is a basic setup and might need adjustments based on your specific use case, such as handling events, responding to messages, or persisting state.