As a user, I want to receive proper error messages if the system is unable to retrieve my sensor data so that I know there is an issue and can take appropriate action.
Description
This use case involves implementing robust error handling for scenarios where the system fails to retrieve real-time or historical sensor data from the backend. Proper error messages should be displayed on the dashboard if the data cannot be loaded due to server issues, missing data, or network errors. Error logs should be maintained for debugging and troubleshooting.
Acceptance Criteria
[ ] If real-time or historical data retrieval fails, an appropriate error message is displayed on the dashboard.
[ ] Error messages include:
[ ] "Unable to retrieve live data. Please try again later."
[ ] "No data available for the selected date range."
[ ] Errors are logged in the backend for debugging and resolution.
[ ] The dashboard remains functional even if data retrieval fails (i.e., the system does not crash).
[ ] Retry mechanisms are implemented where appropriate (e.g., for temporary network issues).
Testing
Normal Flow of Events
The system attempts to retrieve real-time sensor data from the backend.
The backend sends the data successfully, and the dashboard displays it.
The system logs any potential backend errors for future debugging.
Alternate/Exceptional Flows:
S-1:Failure to retrieve real-time data due to server issues
The system fails to retrieve real-time data due to server downtime or unavailability.
The dashboard displays an error message: "Unable to retrieve live data. Please try again later.
S-2: No data available for selected date range
The user selects a date range where no data exists in the database.
The system displays an error message: "No data available for the selected date range."
S-3: Network connectivity issue
The user's internet connection is interrupted, causing data retrieval to fail.
The system shows an error message, and the dashboard remains functional with cached data (if available).
Implement Error Handling for Data Retrieval
User Story
As a user, I want to receive proper error messages if the system is unable to retrieve my sensor data so that I know there is an issue and can take appropriate action.
Description
This use case involves implementing robust error handling for scenarios where the system fails to retrieve real-time or historical sensor data from the backend. Proper error messages should be displayed on the dashboard if the data cannot be loaded due to server issues, missing data, or network errors. Error logs should be maintained for debugging and troubleshooting.
Acceptance Criteria
Testing
Normal Flow of Events
The system attempts to retrieve real-time sensor data from the backend. The backend sends the data successfully, and the dashboard displays it. The system logs any potential backend errors for future debugging.
Alternate/Exceptional Flows:
S-1:Failure to retrieve real-time data due to server issues
The system fails to retrieve real-time data due to server downtime or unavailability. The dashboard displays an error message: "Unable to retrieve live data. Please try again later.
S-2: No data available for selected date range
The user selects a date range where no data exists in the database. The system displays an error message: "No data available for the selected date range."
S-3: Network connectivity issue
The user's internet connection is interrupted, causing data retrieval to fail. The system shows an error message, and the dashboard remains functional with cached data (if available).