Definition of commands

MarcoPolo works through the passing of command-like messages. The syntax of all commands is quite uniform, though several differences appear due to the particular nature of each one.

The basic structure (JSON-based) is the following:

{
  "Command": <name>,
  "Params": <optional, specific params>
  "Auth": <auth token (not yet implemented)>
}

The (so far) implemented commands are:

• Discovery/Marco (no params): A simple command to discover operating nodes on a group. The response is based on .
• Request-for: Request all nodes offering a certain service.
• Service: Requests all services offered in a certain node.

There is not a standarized format for responses (yet). However, all replies are JSON-Based and quite similar (arrays of addresses and ports and some description strings).

Future commands:

• Advertise
• Join group