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      ⚠️ Internal: This API is not publically exported by the package.

      Interface TransactionBody

      Type for transaction body.

      interface TransactionBody {
          blockRef: string;
          chainTag: number;
          clauses: TransactionClause[];
          dependsOn: string;
          expiration: number;
          gas: string | number;
          gasPriceCoef: number;
          nonce: string | number;
          reserved?: {
              features?: number;
              unused?: Uint8Array[];
          };
      }

      Properties

      blockRef chainTag clauses dependsOn expiration gas gasPriceCoef nonce reserved?

      Properties

      blockRef

      blockRef: string

      8 bytes prefix of some block's ID

      chainTag

      chainTag: number

      Last byte of genesis block ID

      clauses

      clauses: TransactionClause[]

      Array of clauses

      dependsOn

      dependsOn: string

      ID of another tx that is depended

      expiration

      expiration: number

      Constraint of time bucket

      gas

      gas: string | number

      Max gas provided for execution

      gasPriceCoef

      gasPriceCoef: number

      Coefficient applied to base gas price [0,255]

      nonce

      nonce: string | number

      Nonce value for various purposes. Basic is to prevent replay attack by make transaction unique. Every transaction with same chainTag, blockRef, ... must have different nonce.

      Optional reserved

      reserved?: {
          features?: number;
          unused?: Uint8Array[];
      }

      A reserved field intended for features use.

      In standard EVM transactions, this reserved field typically is not present. However, it's been designed to cater to VIP-191, which deals with fee delegation.

      If the features within the reserved field is set as 1111...111, it indicates that the transaction has been delegated. The method to check if the transaction is delegated is:

      reserved.features & 1 === 1

      Type declaration

      • Optional features?: number

        Tx feature bits

      • Optional unused?: Uint8Array[]

        Unused

      Example

      feature = 111101;
      isDelegated = (111101 & 111111) === 111101; // false (not delegated)

      feature = 111111;
      isDelegated = (111111 & 111111) === 111111; // true (delegated)

      Remarks

      For more information on the subject, refer to VIP-191.

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