JSON Space is an implementation of a variation of the TupleSpace/Blackboard Metaphor designs.
The goal is to provide an open source, performant, geographically distributed and failure tolerant message switch.
A first concrete implementation will be a pub/sub messaging system. This will allow extremely low-latency intra-continental messaging, while ensuring timely global delivery.
The JSON Space servers can be augmented with rules (written in JavaScript) which match JSON objects. The return code from a rule determines whether the JSON is removed (true) or left for other rules to process (false).
Each rule may generate zero or more new JSON objects.
The JSON Space protocols generate and remove JSON objects themselves - generating a JSON object is sufficient to send network traffic. (FIXME: Add code examples.)
JSON Space is a betteries-included kit of parts for building the message switch you need, with the domain-specific logic you specifiy, with redundancy and abuse-prevention built-in.
The JSON Space server will initially be able to accept rules about the following protocols:
- WebSocket
- DNS
Others will be implemented when needed, and will probably include:
- HTTP server
- HTTP client
- raw UDP
- raw TCP
- SMTP
All server code modules will initially be written in (ES6) JavaScript/NodeJS, but it is expected that some portions will need to be rewritten in C/Haskell/Rust to use server hardware more efficiently.
JSON Space client code is licensed under the MIT license, so that it does not add any open-source obligations to the mobile, desktop or web apps which incorporate it.
The JSON Space server code is licensed under the AGPLv3 - the server code will include a URL from where the server code may be downloaded.