[mkdocs] docs: add listen new blocks tutorial#910
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| For each message, the snippet prints two of its fields: | ||
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| * `height`: The height of the new block. | ||
| * `signer`: The public key of the <harvester account:> that produced the block. |
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Unlike Symbol, NEM doesn't return the block hash in the response, so I'm printing the harvester public key instead.
| A NEM block does not include its own hash in this payload, so this tutorial identifies each block by its `height` | ||
| and also prints the harvester's `signer`. | ||
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| !!! warning "New blocks are not yet final" |
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Unlike Symbol, I'm not showing how to determine whether a block is irreversible, since NEM has no dedicated channel for it. Instead, I'm linking to the polling tutorial, where it's already explained in enough detail.
| print(f'Using node {NODE_URL}') | ||
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| # SockJS has no Python client library. |
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There's no sockjs-client library for Python, so I had to write some helper functions to achieve the same functionality as in JavaScript.
| import { Client } from '@stomp/stompjs'; | ||
| import SockJS from 'sockjs-client'; | ||
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| const NODE_URL = process.env.NODE_URL || 'http://ntn1.dusanjp.com:7778'; |
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I'm using this other node because libertalia does not have websockets enabled at 7778. I'm asking in discord if there's a way to enable them for consistency.
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Adapt listen new blocks tutorial to NEM.