Substrate Transaction Queue Code Walkthrough with Joe Petrowski and Tomasz Drwięga

Channel:

Parity Tech

Subscribers:

5,190

Published on May 6, 2020 11:46:35 PM ● Video Link: https://www.youtube.com/watch?v=rt2LMHTVmmI

Category:

Walkthrough

Duration: 24:21

386 views

18

Parity's Joe Petrowski and Tomasz Drwięga give an introductory code walkthrough for the Substrate transaction queue in Substrate-based blockchains.

Learn more about the transaction queue here: https://www.substrate.io/kb/learn-substrate/tx-pool

Topics:

0:15 - Intro to a transaction queue
1:37 - The transaction queue in Substrate
4:42 - How the runtime communicates to the transaction queue in transaction_validity.rs
8:07 - What types of transactions are there in Substrate?
9:37 - Inherents in Substrate using timestamp as an example
13:05 - "Where the magic happens," the SignedExtension trait
15:36 - validate vs. pre_dispatch for Runtime developers
19:13 - The signed_extension trait


⎼⎼⎼⎼⎼⎼⎼
→ Subscribe for more videos on blockchain development and building Web 3.0: https://www.youtube.com/channel/UCSs5vZi0U7qHLkUjF3QnaWg?sub_confirmation=1
→ Website: https://www.parity.io/
→ To stay informed about Parity updates and events,

subscribe to the newsletter: https://www.parity.io/newsletter/


→ Follow Substrate on Twitter (@substrate_io): https://twitter.com/substrate_io
→ Check our code on GitHub: https://github.com/paritytech/
→ Drop in the Riot chat to ask technical questions: https://riot.im/app/#/room/#watercooler:matrix.parity.io