change to static method

Signed-off-by: rukmini-basu-da <[email protected]>

Author: rukmini-basu-da

docs/wallet-integration-guide/examples/scripts/09-token-standard-allocation-localnet.ts

@@ -6,6 +6,7 @@ import {
     localNetTokenStandardDefault,
     createKeyPair,
     localNetStaticConfig,
+    LedgerController,
 } from '@canton-network/wallet-sdk'
 import { pino } from 'pino'
 import { v4 } from 'uuid'
@@ -185,7 +186,7 @@ const activeTradeProposals = await sdk.userLedger?.activeContracts({
     filterByParty: true,
 })
 
-const otcpCid = sdk.userLedger?.getActiveContractCid(
+const otcpCid = LedgerController.getActiveContractCid(
     activeTradeProposals?.[0]?.contractEntry!
 )
 
@@ -226,7 +227,7 @@ const now = new Date()
 const prepareUntil = new Date(now.getTime() + 60 * 60 * 1000).toISOString()
 const settleBefore = new Date(now.getTime() + 2 * 60 * 60 * 1000).toISOString()
 
-const otcpCid2 = sdk.userLedger?.getActiveContractCid(
+const otcpCid2 = LedgerController.getActiveContractCid(
     activeTradeProposals2?.[0]?.contractEntry!
 )
 
@@ -259,7 +260,7 @@ const otcTrades = await sdk.userLedger!.activeContracts({
     filterByParty: true,
 })
 
-const otcTradeCid = sdk.userLedger?.getActiveContractCid(
+const otcTradeCid = LedgerController.getActiveContractCid(
     otcTrades?.[0]?.contractEntry
 )
 if (!otcTradeCid) throw new Error('OTCTrade not found for venue')

docs/wallet-integration-guide/examples/scripts/12-integration-extensions.ts

@@ -7,6 +7,7 @@ import {
     createKeyPair,
     localValidatorDefault,
     localNetStaticConfig,
+    LedgerController,
 } from '@canton-network/wallet-sdk'
 import path from 'path'
 import { pino } from 'pino'
@@ -180,7 +181,7 @@ const activeContractsForDelegateProxy = await sdk.userLedger?.activeContracts({
     ],
 })
 
-const proxyCid = sdk.userLedger?.getActiveContractCid(
+const proxyCid = LedgerController.getActiveContractCid(
     activeContractsForDelegateProxy![0].contractEntry
 )
 

docs/wallet-integration-guide/examples/scripts/15-rewards-for-deposits.ts

@@ -8,6 +8,7 @@ import {
     localValidatorDefault,
     localNetStaticConfig,
     signTransactionHash,
+    LedgerController,
 } from '@canton-network/wallet-sdk'
 import path from 'path'
 import { pino } from 'pino'
@@ -233,7 +234,7 @@ const activeContractsForDelegateProxy = await sdk.userLedger?.activeContracts({
     ],
 })
 
-const proxyCid = sdk.userLedger?.getActiveContractCid(
+const proxyCid = LedgerController.getActiveContractCid(
     activeContractsForDelegateProxy![0].contractEntry
 )
 

sdk/wallet-sdk/src/ledgerController.ts

@@ -194,7 +194,16 @@ export class LedgerController {
         )
     }
 
-    getActiveContractCid(entry: JSContractEntry) {
+    /**
+     * For a contract there could be multiple contract_entry-s in the entire snapshot. These together define
+     *     the state of one contract in the snapshot.
+     *     A contract_entry is included in the result, if and only if there is at least one stakeholder party of the contract
+     *     that is hosted on the synchronizer at the time of the event and the party satisfies the
+     *     ``TransactionFilter`` in the query.
+     * This function extracts the contractId from a contractEntry is if it's an ActiveContract
+     * @param For
+     */
+    static getActiveContractCid(entry: JSContractEntry) {
         if ('JsActiveContract' in entry) {
             return entry.JsActiveContract.createdEvent.contractId
         }