The peer package handles networking for the VM.

The Network interface implements the networking portion of the required VM interface. The VM utilizes the Network interface to:

• Set an App Gossip handler for incoming VM gossip messages
• Set an App Request handler for incoming VM request messages
• Send App Requests to peers in the network and specify a response handler to be called upon receiving a response or failure notification
• Send App Gossip messages to the network

The client utilizes the Network interface to send requests to peers on the network and utilizes the waitingHandler to wait until a response or failure is received from the AvalancheGo networking layer.

This allows the user of Client to treat it as if it were returning results from the network synchronously.

result, err := client.Request(nodeID, request) // Blocks until receiving a response from the network
if err != nil {
    return err
}

foo(result) // do something with the result