The boss wants to create a secure e-wallet app system that enables digital payments and expands financial access. The app must allow users to securely register and login to the e-wallet using email/password or social login like Google or Facebook. The app should use JSON Web Tokens for authentication. Users should be able to add bank accounts/cards, view balances, and transfer money between accounts within the e-wallet. The app should integrate with payment gateways like Stripe to enable loading money into the e-wallet from bank accounts or cards. The app should enable P2P payments to other users via email/mobile number within the e-wallet. The app should use industry standard practices like hashing passwords, encryption, HTTPS, etc. The app should implement 2-factor authentication for sensitive actions like withdrawals. The app should use end-to-end encryption for all payment transactions. No sensitive user data should be stored in plain text. The app should have comprehensive unit, integration and e2e tests. The tech stack to be used includes FastAPI, SQLAlchemy, Pydantic, Asyncio, Websockets, Stripe Python, PyTest, Tox, Docker, Kubernetes, Flower, Sentry SDK, Redis, Celery, MkDocs, and Python's built-in cryptographic libraries.
[
"Create a secure e-wallet app that enables digital payments and expands financial access.",
"Ensure user data security and privacy with industry standard practices.",
"Provide a seamless user experience for managing and transferring money."
][
"As a user, I want to securely register and login to the e-wallet using my email/password or social login.",
"As a user, I want to add my bank accounts/cards, view my balances, and transfer money between accounts within the e-wallet.",
"As a user, I want to load money into the e-wallet from my bank accounts or cards.",
"As a user, I want to make P2P payments to other users via email/mobile number within the e-wallet.",
"As a user, I want my sensitive actions like withdrawals to be secured with 2-factor authentication."
][
"PayPal: A well-established digital wallet with a wide user base. However, it has high transaction fees and customer service issues.",
"Venmo: Popular for P2P payments, especially among younger users. It lacks some features for business use.",
"Google Wallet: Integrated with other Google services, but not as widely used for P2P payments.",
"Square Cash: Known for business use, but less popular for personal use.",
"Stripe: Known for its API and integration with businesses, but not typically used as a personal digital wallet.",
"Apple Pay: Popular among Apple users, but limited to Apple devices.",
"Samsung Pay: Similar to Apple Pay, but for Samsung devices."
]quadrantChart
title Reach and engagement of campaigns
x-axis Low Reach --> High Reach
y-axis Low Engagement --> High Engagement
quadrant-1 We should expand
quadrant-2 Need to promote
quadrant-3 Re-evaluate
quadrant-4 May be improved
"PayPal": [0.8, 0.6]
"Venmo": [0.7, 0.7]
"Google Wallet": [0.6, 0.5]
"Square Cash": [0.5, 0.4]
"Stripe": [0.4, 0.6]
"Apple Pay": [0.7, 0.8]
"Samsung Pay": [0.6, 0.7]
"Our Target Product": [0.5, 0.6]
The product should be a secure e-wallet app that allows users to register and login, add bank accounts/cards, view balances, transfer money, load money, and make P2P payments. It should use industry standard security practices and have comprehensive tests. The tech stack should include FastAPI, SQLAlchemy, Pydantic, Asyncio, Websockets, Stripe Python, PyTest, Tox, Docker, Kubernetes, Flower, Sentry SDK, Redis, Celery, MkDocs, and Python's built-in cryptographic libraries.
[
("Secure registration and login system with email/password or social login", "P0"),
("Ability to add bank accounts/cards, view balances, and transfer money", "P0"),
("Integration with payment gateways like Stripe for loading money", "P0"),
("P2P payments to other users via email/mobile number", "P0"),
("2-factor authentication for sensitive actions like withdrawals", "P0")
]The app should have a clean and intuitive interface. The home screen should display the user's balance and recent transactions. There should be clear options for adding bank accounts/cards, transferring money, and making P2P payments. Sensitive actions like withdrawals should prompt for 2-factor authentication. The app should use a neutral color scheme with high contrast for readability.
We will use FastAPI for building the APIs as it is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. SQLAlchemy will be used for the ORM to interact with the database. Pydantic will be used for data validation and settings management using Python type annotations. Asyncio will be used for handling asynchronous operations. Websockets will be used for real-time communication. Stripe Python will be used for integrating with the Stripe payment gateway. PyTest and Tox will be used for running tests. Docker and Kubernetes will be used for containerization and orchestration. Flower will be used for real-time monitoring of Celery tasks. Sentry SDK will be used for error tracking. Redis and Celery will be used for task queue management. MkDocs will be used for documentation. Python's built-in cryptographic libraries will be used for encryption and hashing.
"secure_ewallet"[
"main.py",
"models.py",
"schemas.py",
"routers.py",
"tests.py",
"config.py",
"auth.py",
"utils.py",
"database.py",
"exceptions.py",
"middlewares.py",
"tasks.py"
]classDiagram
class User{
+int id
+str email
+str password
+str first_name
+str last_name
+str phone_number
+datetime created_at
+datetime updated_at
+bool is_active
+bool is_superuser
}
class Wallet{
+int id
+int user_id
+float balance
+datetime created_at
+datetime updated_at
}
class Transaction{
+int id
+int sender_wallet_id
+int receiver_wallet_id
+float amount
+datetime created_at
}
User "1" -- "1" Wallet: has
Wallet "1" -- "*" Transaction: has
sequenceDiagram
participant M as Main
participant U as User
participant W as Wallet
participant T as Transaction
M->>U: create_user(email, password, first_name, last_name, phone_number)
U->>M: return user
M->>W: create_wallet(user_id)
W->>M: return wallet
M->>T: create_transaction(sender_wallet_id, receiver_wallet_id, amount)
T->>M: return transaction
M->>W: update_wallet_balance(wallet_id, amount)
W->>M: return updated_wallet
The requirement is clear to me.
"""
fastapi==0.63.0
sqlalchemy==1.3.23
pydantic==1.8.1
asyncio==3.4.3
websockets==8.1
stripe==2.55.0
pytest==6.2.2
tox==3.23.0
docker==4.4.4
kubernetes==12.0.1
flower==0.9.7
sentry-sdk==1.0.0
redis==3.5.3
celery==5.0.5
mkdocs==1.1.2
bcrypt==3.2.0
""""""
No third-party packages required in other languages.
""""""
openapi: 3.0.0
info:
title: Secure eWallet API
version: 1.0.0
paths:
/users:
post:
summary: Create a new user
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/User'
responses:
'200':
description: User created successfully
content:
application/json:
schema:
$ref: '#/components/schemas/User'
/wallets:
post:
summary: Create a new wallet
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/Wallet'
responses:
'200':
description: Wallet created successfully
content:
application/json:
schema:
$ref: '#/components/schemas/Wallet'
/transactions:
post:
summary: Create a new transaction
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/Transaction'
responses:
'200':
description: Transaction created successfully
content:
application/json:
schema:
$ref: '#/components/schemas/Transaction'
components:
schemas:
User:
type: object
properties:
id:
type: integer
email:
type: string
password:
type: string
first_name:
type: string
last_name:
type: string
phone_number:
type: string
created_at:
type: string
format: date-time
updated_at:
type: string
format: date-time
is_active:
type: boolean
is_superuser:
type: boolean
Wallet:
type: object
properties:
id:
type: integer
user_id:
type: integer
balance:
type: number
created_at:
type: string
format: date-time
updated_at:
type: string
format: date-time
Transaction:
type: object
properties:
id:
type: integer
sender_wallet_id:
type: integer
receiver_wallet_id:
type: integer
amount:
type: number
created_at:
type: string
format: date-time
"""[
("main.py", "Contains the main entry point for the application. Initializes FastAPI application and includes routers."),
("models.py", "Contains SQLAlchemy models for User, Wallet and Transaction."),
("schemas.py", "Contains Pydantic models for User, Wallet and Transaction."),
("routers.py", "Contains FastAPI routers for User, Wallet and Transaction."),
("tests.py", "Contains PyTest tests for all the APIs."),
("config.py", "Contains configuration variables for the application."),
("auth.py", "Contains authentication related utilities."),
("utils.py", "Contains utility functions."),
("database.py", "Contains database connection and session management utilities."),
("exceptions.py", "Contains custom exceptions."),
("middlewares.py", "Contains custom middlewares."),
("tasks.py", "Contains Celery tasks.")
][
"config.py",
"database.py",
"models.py",
"schemas.py",
"auth.py",
"utils.py",
"exceptions.py",
"middlewares.py",
"routers.py",
"tasks.py",
"tests.py",
"main.py"
]"""
'config.py' contains configuration variables for the application. These variables are loaded from environment variables and have default values.
'database.py' contains utilities for connecting to the database and managing database sessions. It uses SQLAlchemy for ORM.
'auth.py' contains utilities for handling user authentication. It uses bcrypt for password hashing.
'utils.py' contains utility functions that can be used throughout the application.
'middlewares.py' contains custom middlewares. Middlewares are used to process requests and responses globally before they reach route handlers or after they leave route handlers.
'tasks.py' contains Celery tasks. These tasks are asynchronous and can be used for long running operations.
"""