export transaction type map from definitions

packages/ripple-binary-codec/src/enums/index.ts

@@ -19,6 +19,7 @@ const Field = DEFAULT_DEFINITIONS.field
  * @brief: All valid transaction types
  */
 const TRANSACTION_TYPES = DEFAULT_DEFINITIONS.transactionNames
+const TRANSACTION_TYPE_MAP = DEFAULT_DEFINITIONS.transactionMap
 
 export {
   Bytes,
@@ -31,4 +32,5 @@ export {
   TransactionResult,
   TransactionType,
   TRANSACTION_TYPES,
+  TRANSACTION_TYPE_MAP,
 }

packages/ripple-binary-codec/src/enums/xrpl-definitions-base.ts

@@ -33,6 +33,8 @@ class XrplDefinitionsBase {
   transactionType: BytesLookup
   // Valid transaction names
   transactionNames: string[]
+  // Valid transaction names
+  transactionMap: Record<string, number>
   // Maps serializable types to their TypeScript class implementation
   dataTypes: Record<string, typeof SerializedType>
 
@@ -68,10 +70,20 @@ class XrplDefinitionsBase {
       enums.FIELDS as Array<[string, FieldInfo]>,
       enums.TYPES,
     )
+
     this.transactionNames = Object.entries(enums.TRANSACTION_TYPES)
       .filter(([_key, value]) => value >= 0)
       .map(([key, _value]) => key)
 
+    const ignoreList = ['EnableAmendment', 'SetFee', 'UNLModify', 'EmitFailure']
+    this.transactionMap = Object.assign(
+      {},
+      ...Object.entries(enums.TRANSACTION_TYPES)
+
+        .filter(([_key, _value]) => _value >= 0 || ignoreList.includes(_key))
+        .map(([key, value]) => ({ [key]: value })),
+    )
+
     this.dataTypes = {} // Filled in via associateTypes
     this.associateTypes(types)
   }

packages/ripple-binary-codec/src/index.ts

@@ -6,6 +6,7 @@ import { JsonObject } from './types/serialized-type'
 import {
   XrplDefinitionsBase,
   TRANSACTION_TYPES,
+  TRANSACTION_TYPE_MAP,
   DEFAULT_DEFINITIONS,
 } from './enums'
 import { XrplDefinitions } from './enums/xrpl-definitions'
@@ -134,6 +135,7 @@ export {
   decodeQuality,
   decodeLedgerData,
   TRANSACTION_TYPES,
+  TRANSACTION_TYPE_MAP,
   XrplDefinitions,
   XrplDefinitionsBase,
   DEFAULT_DEFINITIONS,

packages/xrpl/src/utils/hooks.ts

@@ -6,7 +6,7 @@
 
 // eslint-disable-next-line @typescript-eslint/no-require-imports -- Required
 import createHash = require('create-hash')
-import { TRANSACTION_TYPE_MAP, TRANSACTION_TYPES } from 'ripple-binary-codec'
+import { TRANSACTION_TYPES, TRANSACTION_TYPE_MAP } from 'ripple-binary-codec'
 
 import { XrplError } from '../errors'
 import { HookParameter } from '../models/common'
@@ -35,6 +35,9 @@ export type TTS = typeof tts
 export function calculateHookOn(arr: Array<keyof TTS>): string {
   let hash = '0x3e3ff5bf'
   arr.forEach((nth) => {
+    if (!TRANSACTION_TYPE_MAP) {
+      throw new XrplError(`TRANSACTION_TYPE_MAP malformed or undefined`)
+    }
     if (typeof nth !== 'string') {
       throw new XrplError(`HookOn transaction type must be string`)
     }