How a node can add data to the chain using python?

Question

I want a site to add data to a blockchain using python, so how it can be done?

Thanks in advance

Answer 1

You can start with one of the Python libraries linked from the bottom of this page:

https://www.multichain.com/developers/

Then use it to access the publish API to put the data on the chain.

Comments

Thanks for the response!!
I have made the blockchain using the python libraries mentioned but now I cannot figure out which function to call. I was trying to call stream method
restrictions={"restrict":"write"}
mychain.create('stream', 'stream5',restrictions)
#returns hash value
mychain.publish('stream5','key1',{"json":{"name":"John Doe","city":"London"}})
#returns hash value
But when I try to access the stream item it gives an error.

Please let me know where I am wrong or what's the alternative.
PS: OS is Windows 10

Thanks in advance

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If you got hash values back for both calls, that's a good sign.

When you say "when I try to access the stream item it gives an error" what do you mean? Most likely, you need to tell the node to subscribe to the stream before querying it.

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Thanks, I was not subscribing to the stream earlier. Got it  now!! Thanks for resolving the query.