Added example to show the options of getAccountData()

README.md

@@ -32,11 +32,13 @@ dependencies {
 
 ## Usage
 
+For the full example source code see [ShowUsage](SampleApp/src/main/kotlin/net/codinux/banking/client/fints4k/example/ShowUsage.kt).
+
 ### Get AccountData 
 
 Retrieves data like accounts, balance and booked transactions (Konten, Saldo und Kontoumsätze).
 
-Basically:
+Simple example:
 
 ```kotlin
 class ShowUsage {
@@ -53,6 +55,11 @@ class ShowUsage {
 
         val response = client.getAccountData()
 
+        printReceivedData(response)
+    }
+
+
+    private fun printReceivedData(response: Response<GetAccountDataResponse>) {
         response.data?.let { data ->
             val customer = data.customer
             println("Kunde: ${customer.customerName} ${customer.accounts.size} Konten @ ${customer.bic} ${customer.bankName}")
@@ -84,6 +91,19 @@ val client = FinTs4kBankingClientForCustomer(bankCode, loginName, password, Simp
 })
 ```
 
+You can also specify options e.g. which transactions should be retrieved:
+
+```kotlin
+val options = GetAccountDataOptions(
+    retrieveBalance = true, // retrieve balance (Saldo / Kontostand) yes or no
+    retrieveTransactions = RetrieveTransactions.AccordingToRetrieveFromAndTo, // so that fromDate and toDate below determine of which time period transactions (Umsätze) should be retrieved; defaults to OfLast90Days which in most cases doesn't require a TAN
+    retrieveTransactionsFrom = LocalDate(2023, 1, 1),
+    retrieveTransactionsTo = LocalDate(2023, 12, 31),
+    abortIfTanIsRequired = false // e.g. for command line application when entering TAN is either not possible or a TAN procedure is used that cannot be handled via a break point (e.g. showing a TAN image or flicker code)
+)
+val response = client.getAccountData(options)
+```
+
 Add some error handling by checking `response.error`:
 
 ```kotlin

SampleApp/src/main/kotlin/net/codinux/banking/client/fints4k/example/ShowUsage.kt

@@ -1,12 +1,20 @@
 package net.codinux.banking.client.fints4k.example
 
+import kotlinx.datetime.LocalDate
 import net.codinux.banking.client.SimpleBankingClientCallback
 import net.codinux.banking.client.fints4k.FinTs4kBankingClientForCustomer
 import net.codinux.banking.client.getAccountData
+import net.codinux.banking.client.model.options.GetAccountDataOptions
+import net.codinux.banking.client.model.options.RetrieveTransactions
+import net.codinux.banking.client.model.response.GetAccountDataResponse
+import net.codinux.banking.client.model.response.Response
 import net.codinux.banking.client.model.tan.EnterTanResult
 
 fun main() {
-    ShowUsage().getAccountData()
+    val showUsage = ShowUsage()
+
+    showUsage.getAccountDataSimpleExample()
+//    showUsage.getAccountDataFullExample()
 }
 
 class ShowUsage {
@@ -18,18 +26,38 @@ class ShowUsage {
     private val password = "" // Online-Banking Password mit dem du dich beim Online-Banking deiner Bank anmeldest
 
 
-    fun getAccountData() {
+    fun getAccountDataSimpleExample() {
+        val client = FinTs4kBankingClientForCustomer(bankCode, loginName, password, SimpleBankingClientCallback())
+
+        val response = client.getAccountData()
+
+        printReceivedData(response)
+    }
+
+    fun getAccountDataFullExample() {
         val client = FinTs4kBankingClientForCustomer(bankCode, loginName, password, SimpleBankingClientCallback { tanChallenge, callback ->
             val tan: String? = null // if a TAN is required, add a UI or ...
             callback.invoke(EnterTanResult(tan)) // ...  set a break point here, get TAN e.g. from your TAN app, set tan variable in debugger view and resume debugger
         })
 
-        val response = client.getAccountData()
+        val options = GetAccountDataOptions(
+            retrieveBalance = true, // retrieve balance (Saldo / Kontostand) yes or no
+            retrieveTransactions = RetrieveTransactions.AccordingToRetrieveFromAndTo, // so that fromDate and toDate below determine of which time period transactions (Umsätze) should be retrieved; defaults to OfLast90Days which in most cases doesn't require a TAN
+            retrieveTransactionsFrom = LocalDate(2023, 1, 1),
+            retrieveTransactionsTo = LocalDate(2023, 12, 31),
+            abortIfTanIsRequired = false // e.g. for command line application when entering TAN is either not possible or a TAN procedure is used that cannot be handled via a break point (e.g. showing a TAN image or flicker code)
+        )
+        val response = client.getAccountData(options)
 
         response.error?.let{ error ->
             println("Could not fetch account data: ${error.internalError ?: error.errorMessagesFromBank.joinToString()}")
         }
 
+        printReceivedData(response)
+    }
+
+
+    private fun printReceivedData(response: Response<GetAccountDataResponse>) {
         response.data?.let { data ->
             val customer = data.customer
             println("Kunde: ${customer.customerName} ${customer.accounts.size} Konten @ ${customer.bic} ${customer.bankName}")