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polkadot(js) book
  • Why Polkadot?
  • Polkadot js API
    • Typescript
  • 👩‍🚀Polkadot JS API Primer
    • 0. Setup
      • Polkadot JS API template
    • 1. Network Metadata
      • WebSockets
      • Configure WebSocket URL
      • Testnets and Westend network
    • 2. Account Creation and Cryptography
      • Public-key cryptography
      • Mnemonic seed phrase
      • API : create wallet account
    • 3. Wallets and Westend tokens
      • Mnemonic to create account
      • Claim Westend tokens
    • 4. Account Balance and Planck Unit
      • API to check account balance
      • Planck unit
      • Minimum account balance
        • API : check existential deposit
        • API : check account balance
  • 5. Extrinsics or Transactions
    • Transaction fees
      • API to check transaction fees
    • Transaction errors
      • API : General Exception Handling
      • API : Exception handling when account balance is low
    • API : transfer tokens from sender to receiver account
  • 6. Blocks in a chain
    • BlockHash
      • API : find blockHash of a transaction
    • Block structure of Polkadot
      • API : Polkadot block
      • API : Extrinsics
    • API : Transaction in a block
  • 🚀What next?
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What next?

PreviousAPI : Transaction in a block

Last updated 2 years ago

Official Polkadot Wiki

Story of Polkadot. How it originated? and the team behind it?

  • Polkadot Behind the Code, Episode 1: The Idea, featuring Gavin Wood (7:14)

  • Polkadot Behind the Code, Episode 2: The Build (17:42)

  • Polkadot Behind the Code, Episode 3: The Ecosystem, featuring Gavin Wood (16:55)

Distributed Systems

Understanding distributed systems will help layout the foundations on which blockchains are made.

Official EDX Tutorials

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https://wiki.polkadot.network/docs/getting-started
https://youtu.be/GcOKXAOh4Xw
https://youtu.be/EY5qGOuV30w
https://youtu.be/0_LBP78ixAc
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