Can I access multichain using REST calls?

Question

Hi,

I have an application written in Java.

I want to connect with multichain using REST (HTTP) calls. Is this possible?

If yes, please share the tutorial link.

 

Regards

Anuj

Answer 1

Yes, of course, the entire MultiChain API uses JSON-RPC which is a REST-like interface.

You can find a ton of information including a Java library on this page:

http://www.multichain.com/developers/

Comments

As per my understanding it's pretty straight forward to execute JSON-RPC API calls from the command line, but how do we execute it in an HTTP call.

So what should be the HTTP URL say to fetch all the addresses from the node?

http://[HOST]:[PORT]/???

Regards
Anuj

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You just need to make an HTTP POST request to the right host and port, using HTTP basic authentication with your RPC username and password, and the POST payload containing the JSON which looks something like this:

{"method":"publish","params":["stream1","key","0A0A"],"id":1,"chain_name":"chain1"}

That's the equivalent of:

multichain-cli chain1 publish stream1 key 0A0A

In general you can see the HTTP POST payload for any request by looking at the first line output by multichain-cli.

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This clears my query. Thanks a lot.