diff --git a/backend/src/main/java/de/szut/casino/deposit/DepositController.java b/backend/src/main/java/de/szut/casino/deposit/DepositController.java
index c7c85a8..965946c 100644
--- a/backend/src/main/java/de/szut/casino/deposit/DepositController.java
+++ b/backend/src/main/java/de/szut/casino/deposit/DepositController.java
@@ -8,6 +8,8 @@ import com.stripe.param.PriceCreateParams;
 import com.stripe.param.checkout.SessionCreateParams;
 import de.szut.casino.deposit.dto.AmountDto;
 import de.szut.casino.deposit.dto.SessionIdDto;
+import jakarta.validation.Valid;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.cassandra.CassandraProperties;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -17,32 +19,28 @@ import org.springframework.web.bind.annotation.RestController;
 
 @RestController
 public class DepositController {
+
+    @Value("${stripe.secret.key}")
+    private String stripeKey;
+
     @PostMapping("/deposit/checkout")
-    public ResponseEntity<? extends Object> checkout(@RequestBody AmountDto amountDto) {
-        Stripe.apiKey = "sk_test_51QrePYIvCfqz7ANgqam8rEwWcMeKiLOof3j6SCMgu2sl4sESP45DJxca16mWcYo1sQaiBv32CMR6Z4AAAGQPCJo300ubuZKO8I";
-        try {
-            SessionCreateParams params = SessionCreateParams.builder()
-                    .addLineItem(SessionCreateParams.LineItem.builder()
-                            .setPriceData(InvoiceItemCreateParams.PriceData.builder()
-                                    .setCurrency("EUR")
-                                    .setUnitAmount(1L)
-                                    .build()
-                            )
-                            .build())
-                    .setSuccessUrl("http://localhost:8080/deposit/success")
-                    .setMode(SessionCreateParams.Mode.PAYMENT)
-                    .build();
-            try {
-                Session session = Session.create(params);
+    public ResponseEntity<SessionIdDto> checkout(@RequestBody @Valid AmountDto amountDto) throws StripeException {
+        Stripe.apiKey = stripeKey;
 
-                return ResponseEntity.ok(new SessionIdDto(session.getId()));
-            } catch (StripeException e) {
-                return ResponseEntity.ok(e);
-            }
-        } catch (Exception e) {
-            return ResponseEntity.ok(e);
-        }
+        SessionCreateParams params = SessionCreateParams.builder()
+                .addLineItem(SessionCreateParams.LineItem.builder()
+                        .setAmount((long) amountDto.getAmount() * 100)
+                        .setCurrency("EUR")
+                        .setQuantity(1L)
+                        .setName("Einzahlung")
+                        .build())
+                .setSuccessUrl("http://localhost:8080/deposit/success")
+                .setMode(SessionCreateParams.Mode.PAYMENT)
+                .build();
 
+        Session session = Session.create(params);
+
+        return ResponseEntity.ok(new SessionIdDto(session.getId()));
     }
 }
 
diff --git a/backend/src/main/java/de/szut/casino/deposit/dto/AmountDto.java b/backend/src/main/java/de/szut/casino/deposit/dto/AmountDto.java
index 7996d85..1f1708e 100644
--- a/backend/src/main/java/de/szut/casino/deposit/dto/AmountDto.java
+++ b/backend/src/main/java/de/szut/casino/deposit/dto/AmountDto.java
@@ -1,21 +1,17 @@
 package de.szut.casino.deposit.dto;
 
+import jakarta.validation.constraints.Min;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Setter
+@Getter
+@AllArgsConstructor
+@NoArgsConstructor
 public class AmountDto {
+    @Min(50)
     private double amount;
-
-    public AmountDto() {
-    }
-
-    public AmountDto(double amount) {
-        this.amount = amount;
-    }
-
-    public double getAmount() {
-        return amount;
-    }
-
-    public void setAmount(double amount) {
-        this.amount = amount;
-    }
 }
 
diff --git a/backend/src/main/resources/application.properties b/backend/src/main/resources/application.properties
index 938ce25..7f00727 100644
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -3,7 +3,7 @@ spring.datasource.username=postgres_user
 spring.datasource.password=postgres_pass
 server.port=8080
 spring.jpa.hibernate.ddl-auto=create-drop
-
+stripe.secret.key=sk_test_51QrePYIvCfqz7ANgqam8rEwWcMeKiLOof3j6SCMgu2sl4sESP45DJxca16mWcYo1sQaiBv32CMR6Z4AAAGQPCJo300ubuZKO8I
 
 spring.application.name=lf12_starter
 #client registration configuration
diff --git a/frontend/src/app/deposit/deposit.component.html b/frontend/src/app/deposit/deposit.component.html
index f3bbbb2..43f3916 100644
--- a/frontend/src/app/deposit/deposit.component.html
+++ b/frontend/src/app/deposit/deposit.component.html
@@ -1,14 +1,5 @@
 <form [formGroup]="form">
   <input type="number" formControlName="amount">€
   <br>
-  <br>
-  <br>
-  <br>
-  <br>
-  <br>
-  <br>
-  <br>
-  <br>
-  <br>
-  <button type="button" (click)="submit()">Einzahlen</button>
+  <button type="button" class="" (click)="submit()">Einzahlen</button>
 </form>
diff --git a/frontend/src/app/deposit/deposit.component.ts b/frontend/src/app/deposit/deposit.component.ts
index f28c694..6667dcd 100644
--- a/frontend/src/app/deposit/deposit.component.ts
+++ b/frontend/src/app/deposit/deposit.component.ts
@@ -1,6 +1,7 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, inject, OnInit } from '@angular/core';
 import { FormControl, FormGroup, ReactiveFormsModule, Validators } from '@angular/forms';
 import { loadStripe, Stripe } from '@stripe/stripe-js';
+import { DepositService } from '../service/deposit.service';
 
 @Component({
   selector: 'app-deposit',
@@ -13,19 +14,18 @@ import { loadStripe, Stripe } from '@stripe/stripe-js';
 })
 export class DepositComponent implements OnInit{
   protected form = new FormGroup({amount: new FormControl(50, [Validators.min(50)])});
-  private stripe: Stripe | null;
+  private stripe: Stripe | null = null;
+  private service: DepositService = inject(DepositService);
 
   async ngOnInit() {
-    this.stripe = await loadStripe('pk_test_51');
+    this.stripe = await loadStripe('pk_test_51QrePYIvCfqz7ANgMizBorPpVjJ8S6gcaL4yvcMQnVaKyReqcQ6jqaQEF7aDZbDu8rNVsTZrw8ABek4ToxQX7KZe00jpGh8naG');
   }
 
   submit() {
     if (this.stripe) {
-      fetch('/backend/deposit/checkout', {
-        method: 'POST',
-        body: JSON.stringify(this.form.value),
-      }).then(response => response.json()).then(response => {
-        this.stripe?.redirectToCheckout({sessionId: response.sessionId});
+      console.log(JSON.stringify(this.form.value.amount as number));
+      this.service.handleDeposit(this.form.value.amount as number).subscribe(({sessionId}) => {
+        this.stripe?.redirectToCheckout({sessionId});
       });
     }
   }
diff --git a/frontend/src/app/service/deposit.service.ts b/frontend/src/app/service/deposit.service.ts
new file mode 100644
index 0000000..7dd8b78
--- /dev/null
+++ b/frontend/src/app/service/deposit.service.ts
@@ -0,0 +1,15 @@
+import { inject, Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+
+
+@Injectable({
+  providedIn: 'root'
+})
+export class DepositService {
+  private http: HttpClient = inject(HttpClient);
+
+  handleDeposit(amount: number): Observable<{ sessionId: string }> {
+    return this.http.post<{sessionId: string}>('/backend/deposit/checkout', {amount});
+  }
+}