Assignment Solution
Assignment Solution

Assignment Solution

Setting things up

Installing Node and VS Code EditorInstalling Node and VS Code EditorInstalling "XRPL JS TS Demo" and DependenciesInstalling "XRPL JS TS Demo" and Dependencies

XRP Ledger accounts

Learning More About XRP Ledger AccountLearning More About XRP Ledger AccountGenerating XRPL AccountGenerating XRPL AccountDerive r-address From SecretDerive r-address From SecretBrief Overview of The XRP LedgerBrief Overview of The XRP Ledger

First XRPL interaction

Activate Existing XRPL Account on Test NetworkActivate Existing XRPL Account on Test NetworkConnecting and Interacting with XRP Ledger: account_infoConnecting and Interacting with XRP Ledger: account_infoInteracting with XRP Ledger using JSON-RPCInteracting with XRP Ledger using JSON-RPCError Handling and Best PracticesError Handling and Best PracticesBasics of XRP and Issued CurrencyBasics of XRP and Issued CurrencySigning Payment TransactionSigning Payment TransactionAssignment SolutionAssignment SolutionVerifying SignatureVerifying SignatureSubmit Transaction Signature To XRP LedgerSubmit Transaction Signature To XRP LedgerSubscription MethodsSubscription MethodsSubscription Methods To Build Responsive AppSubscription Methods To Build Responsive AppTransaction VerificationTransaction VerificationBalance DetailBalance DetailTransaction CostTransaction CostMeasures to Avoid Ledger SpammingMeasures to Avoid Ledger SpammingSource And Destination TagsSource And Destination TagsAccountSet Transaction: Domain, GravatarAccountSet Transaction: Domain, GravatarAccountSet Transaction: SetFlag, ClearFlagAccountSet Transaction: SetFlag, ClearFlagDeposit AuthorizationDeposit Authorization

Tokens, transactions

Issuing Token on XRPLIssuing Token on XRPLToken(IOU): Payment TransactionToken(IOU): Payment TransactionCommands To Fetch TrustLine InformationCommands To Fetch TrustLine InformationFreeze a TrustLineFreeze a TrustLineIssuer: Transfer FeesIssuer: Transfer FeesMore about TrustLineMore about TrustLineCurrency Code In Hex FormatCurrency Code In Hex FormatRemoving a TrustLineRemoving a TrustLineRequire authorization FlagRequire authorization Flag

Ledger features

AccountDelete TransactionAccountDelete TransactionTickets: TheoryTickets: TheoryTicketCreate TransactionTicketCreate TransactionDelete Ticket ObjectDelete Ticket Object

SetRegularKey

SetRegularKey: The ConceptSetRegularKey: The ConceptAssigning RegularKeyAssigning RegularKeyChange RegularKeyChange RegularKeyRemove RegularKeyRemove RegularKeyBlackhole An AccountBlackhole An Account

MultiSigning

MultiSigning: The ConceptMultiSigning: The ConceptCreate SignerListCreate SignerListReplace SignerListReplace SignerListMulti-signed Payment TransactionMulti-signed Payment TransactionRemoving SignerListRemoving SignerList

Assignment Solution

Intro

Solving critical and common problems which all XRP Ledger applications will face.

Video

Topics covered

  • Validating all the user inputs.
  • Deriving public key from all formates of secret keys.
  • Check if the user is trying to send more XRP than present in his/her balance.
  • Difference between Spendable balance and Total balance.
  • Error handling.
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Final tip: Always validate user inputs and check for potential bugs and handle it.

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Signing Payment Transaction

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Verifying Signature

  • Assignment Solution
  • Intro
  • Video
  • Topics covered
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