🍕
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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  1. 5. Extrinsics or Transactions

Transaction errors

PreviousAPI to check transaction feesNextAPI : General Exception Handling

Last updated 2 years ago

Transactions could fail due to many reasons, like

  • InsufficientBalance (3) : Balance too low to send value

  • ExistentialDeposit (4) : Value too low to create account due to existential deposit

  • InvalidKey (0) : Non existent public key.

Learn more about the errors:

👉
https://wiki.polkadot.network/docs/maintain-errors#error-table