AP-65 (#87)

closes #65

Reviewed-on: #87

frontend/allowance-planner-v2/src/app/services/allowance.service.ts

@@ -15,7 +15,15 @@ export class AllowanceService {
         return this.http.get<Allowance[]>(`${this.url}/user/${userId}/allowance`);
     }
 
+    getAllowanceById(allowanceId: number, userId: number): Observable<Allowance> {
+        return this.http.get<Allowance>(`${this.url}/user/${userId}/allowance/${allowanceId}`);
+    }
+
     createAllowance(allowance: Partial<Allowance>, userId: number) {
         this.http.post(`${this.url}/user/${userId}/allowance`, allowance).subscribe();
     }
+
+    updateAllowance(allowance: Partial<Allowance>, allowanceId: number, userId: number) {
+        this.http.put(`${this.url}/user/${userId}/allowance/${allowanceId}`, allowance).subscribe();
+    }
 }