| Action | HTTP Method |
|---|---|
| Create | HTTP POST |
| Read | HTTP GET |
| Update | HTTP PUT |
| Delete | HTTP DELETE |
Node/Express
| Action |
|---|
| Perform data cleaning |
| Send information to Postgres |
| Send back confirmation status to React |
Error Handling
| Action |
|---|
| Handle validation errors in requests |
| Return appropriate HTTP status codes |
| Log errors for debugging |
Postgres
| Action |
|---|
| Perform corresponding actions to requests from Node |
| Method | Description |
|---|---|
| Token-based authentication | Use JWT (JSON Web Tokens) for user sessions |
| Session management | Store user sessions securely in the database |
- User Actions: Users interact with the React front end (e.g., submitting a form, clicking buttons).
- HTTP Requests: The front end sends HTTP requests to the Node/Express backend based on user actions.
- Data Processing: The backend processes the requests, performing any necessary data cleaning and validation.
- Database Interaction: The backend communicates with the Postgres database to store or retrieve data.
- Response: The backend sends a response back to the React front end, including confirmation status or requested data.
- UI Update: The front end updates the user interface based on the response received.