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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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  1. Polkadot JS API Primer
  2. 4. Account Balance and Planck Unit
  3. Minimum account balance

API : check existential deposit

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Last updated 2 years ago

Code example

Run the file at the path below, also refer to the GitHub link attached below.

ts-node src/3-balance/1-ed-balance.ts

 Existential deposit  --- 0.1 WND

You need a minimum balance of 0.1 WND to perform any kind of transaction in the network.

Sample output

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Logopolkadot-js-recipes/1-ed-balance.ts at main · polkadotjs-developer-hub/polkadot-js-recipesGitHub