Moonbeam Dex, Custom RPCs, and Runtime APIs | Substrate Seminar | Archives

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United Kingdom Parity Tech
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5,190
Published on ● Video Link: https://www.youtube.com/watch?v=abdyjAL1yGA


Duration: 1:26:38
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14

This week Purestake's Derek demonstrates a decentralized exchange PoC called moonbeam. Then we look at custom RPC archetecture and examples.

0:00 Moonbeam Decentralized Exchange: motivation
1:41 Moonbeam demo
20:00 Moonbeam code walkthrough
32:32 Overview of RPC architecture in context of Substrate node
38:17 Runtime Upgrades and RPC Compatability
40:10 Demo and walkthrough of a toy custom RPC
52:49 Demo of RPC that calls into runtime
55:37 Code walkthrough RPC that call into runtime
1:09:43 Code Walkthrough of the runtime API itself
1:16:28 Experiment: What if the RPC Call mutates storage?
1:18:12 Polkadot-js API and Custom RPCs
1:22:43 Question: Can we add RPC calls to Kusama?
1:25:43 Wrap-up

These links were shared during the session.

Node template: https://github.com/substrate-developer-hub/substrate-node-template
Frontend Template: https://github.com/substrate-developer-hub/substrate-front-end-template/
Moonbeam node: https://github.com/PureStake/moonbeam
Moonbeam frontend: https://github.com/PureStake/moonbeam-ui
Some good examples and explanation about the price change: https://ethresear.ch/t/improving-front-running-resistance-of-x-y-k-market-makers/1281



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Tags:
Blockchain
Substrate
Runtime API
jsonrpc
Decentralized Exchange
Rust