How to validate Stream's published content from permitted nodes

Question

I have finally setup nodes and can publish and liststreamkeyitems via RESTful web service. Everything is currently working well. The data that the application publishes to multichain has key of String type and a Hex Json String.

The problem is:

1. The key is numbers in String format and must be 11 digits. I want to validate that other nodes publishes valid key content and length.

2. The value is a JSON string converted to Hex. I want to validate that other nodes publish valid Hex JSON string.

Is this possible on multichain

Answer 1

It's not yet possible to embed transaction rules like this inside a MultiChain 1.0 blockchain, so you would need to perform validation at the application level at read time. However a key feature on the MultiChain 2.0 roadmap called filters will be designed to address this need. More here:

https://www.multichain.com/blog/2017/06/multichain-1-beta-2-roadmap/