Create app.py

app.py

@@ -0,0 +1,153 @@
+import streamlit as st
+import requests
+from typing import List, Optional
+
+# API base URL
+BASE_URL = "https://geeksiddhant-enrollmentapi.hf.space"
+
+# Initialize session state for customers list
+if 'customers' not in st.session_state:
+    st.session_state.customers = []
+
+def fetch_customers():
+    """Fetch all customers from the API"""
+    try:
+        response = requests.get(f"{BASE_URL}/customers")
+        if response.status_code == 200:
+            st.session_state.customers = response.json()
+    except requests.exceptions.RequestException as e:
+        st.error(f"Error fetching customers: {str(e)}")
+
+def create_customer(name: str, email: str, phone: Optional[str] = None, address: Optional[str] = None):
+    """Create a new customer"""
+    try:
+        # Find the next available ID
+        next_id = max([c['id'] for c in st.session_state.customers], default=0) + 1
+        
+        customer_data = {
+            "id": next_id,
+            "name": name,
+            "email": email,
+            "phone": phone,
+            "address": address
+        }
+        
+        response = requests.post(f"{BASE_URL}/customers", json=customer_data)
+        if response.status_code == 200:
+            st.success("Customer created successfully!")
+            fetch_customers()
+        else:
+            st.error(f"Error creating customer: {response.text}")
+    except requests.exceptions.RequestException as e:
+        st.error(f"Error creating customer: {str(e)}")
+
+def update_customer(customer_id: int, name: str, email: str, phone: Optional[str] = None, address: Optional[str] = None):
+    """Update an existing customer"""
+    try:
+        customer_data = {
+            "id": customer_id,
+            "name": name,
+            "email": email,
+            "phone": phone,
+            "address": address
+        }
+        
+        response = requests.put(f"{BASE_URL}/customers/{customer_id}", json=customer_data)
+        if response.status_code == 200:
+            st.success("Customer updated successfully!")
+            fetch_customers()
+        else:
+            st.error(f"Error updating customer: {response.text}")
+    except requests.exceptions.RequestException as e:
+        st.error(f"Error updating customer: {str(e)}")
+
+def delete_customer(customer_id: int):
+    """Delete a customer"""
+    try:
+        response = requests.delete(f"{BASE_URL}/customers/{customer_id}")
+        if response.status_code == 200:
+            st.success("Customer deleted successfully!")
+            fetch_customers()
+        else:
+            st.error(f"Error deleting customer: {response.text}")
+    except requests.exceptions.RequestException as e:
+        st.error(f"Error deleting customer: {str(e)}")
+
+# Streamlit UI
+st.title("Customer Management System")
+
+# Sidebar for navigation
+page = st.sidebar.selectbox("Choose an operation", ["View Customers", "Add Customer", "Update Customer", "Delete Customer"])
+
+# Fetch customers on initial load
+fetch_customers()
+
+if page == "View Customers":
+    st.header("All Customers")
+    if st.session_state.customers:
+        for customer in st.session_state.customers:
+            st.write(f"**ID:** {customer['id']}")
+            st.write(f"**Name:** {customer['name']}")
+            st.write(f"**Email:** {customer['email']}")
+            if customer.get('phone'):
+                st.write(f"**Phone:** {customer['phone']}")
+            if customer.get('address'):
+                st.write(f"**Address:** {customer['address']}")
+            st.write("---")
+    else:
+        st.info("No customers found.")
+
+elif page == "Add Customer":
+    st.header("Add New Customer")
+    with st.form("add_customer_form"):
+        name = st.text_input("Name")
+        email = st.text_input("Email")
+        phone = st.text_input("Phone (optional)")
+        address = st.text_area("Address (optional)")
+        
+        submitted = st.form_submit_button("Add Customer")
+        if submitted:
+            if name and email:
+                create_customer(name, email, phone, address)
+            else:
+                st.warning("Please fill in the required fields (Name and Email)")
+
+elif page == "Update Customer":
+    st.header("Update Customer")
+    if st.session_state.customers:
+        customer_id = st.selectbox(
+            "Select Customer to Update",
+            options=[c['id'] for c in st.session_state.customers]
+        )
+        
+        # Get the selected customer's data
+        selected_customer = next((c for c in st.session_state.customers if c['id'] == customer_id), None)
+        
+        if selected_customer:
+            with st.form("update_customer_form"):
+                name = st.text_input("Name", value=selected_customer['name'])
+                email = st.text_input("Email", value=selected_customer['email'])
+                phone = st.text_input("Phone", value=selected_customer.get('phone', ''))
+                address = st.text_area("Address", value=selected_customer.get('address', ''))
+                
+                submitted = st.form_submit_button("Update Customer")
+                if submitted:
+                    if name and email:
+                        update_customer(customer_id, name, email, phone, address)
+                    else:
+                        st.warning("Please fill in the required fields (Name and Email)")
+    else:
+        st.info("No customers available to update.")
+
+elif page == "Delete Customer":
+    st.header("Delete Customer")
+    if st.session_state.customers:
+        customer_id = st.selectbox(
+            "Select Customer to Delete",
+            options=[c['id'] for c in st.session_state.customers]
+        )
+        
+        if st.button("Delete Customer"):
+            delete_customer(customer_id)
+    else:
+        st.info("No customers available to delete.")