# Feature Specification: CLI App for API Interaction with MFA **Feature Branch**: `006-cli-auth-sync-mfa` **Created**: Thursday, December 18, 2025 **Status**: Draft **Input**: User description: "create a simple python CLI app for interacting with our API to authenticate the user, trigger a sync, and see the sync status. Allow for the use of MFA on the acct." ## User Scenarios & Testing *(mandatory)* ### User Story 1 - Text-Based Authentication with MFA (Priority: P1) As a user, I want to authenticate with the API via a text-based interface, including support for MFA on my account, so that I can securely access the system and perform sync operations. **Why this priority**: Authentication is the foundational requirement for any subsequent operations. Without secure authentication, all other features are inaccessible. MFA support is critical for account security. **Independent Test**: Can be fully tested by running the authentication command with both standard credentials and MFA-enabled accounts, and verifying the system properly validates credentials and handles MFA flows. **Acceptance Scenarios**: 1. **Given** a valid username and password without MFA, **When** I run the auth command, **Then** I am successfully authenticated and receive a valid session/token 2. **Given** a valid username, password, and MFA code, **When** I run the auth command, **Then** I am successfully authenticated after providing the MFA code 3. **Given** an invalid username/password, **When** I run the auth command, **Then** authentication fails with an appropriate error message --- ### User Story 2 - Trigger Sync Operations via Text Interface (Priority: P2) As a user, I want to trigger a sync operation from a text-based interface, so that I can initiate data synchronization between my account and the system without using the web interface. **Why this priority**: This is the core functionality that provides value beyond simple authentication. It allows users to initiate the primary business function (syncing data) from a text-based interface. **Independent Test**: Can be fully tested by authenticating and then running the sync trigger command, and verifying that the sync process is initiated in the backend system. **Acceptance Scenarios**: 1. **Given** I am authenticated with a valid session, **When** I run the sync trigger command, **Then** a sync operation is initiated and I receive confirmation of the job 2. **Given** I am not authenticated, **When** I run the sync trigger command, **Then** I receive an authentication error --- ### User Story 3 - Check Sync Status via Text Interface (Priority: P3) As a user, I want to check the status of my sync operations from a text-based interface, so that I can monitor the progress of my data synchronization without using the web interface. **Why this priority**: This provides visibility into operations that may take time to complete, helping users understand system state and troubleshoot potential issues. **Independent Test**: Can be fully tested by triggering a sync and then checking its status via the text interface, with various sync states being properly reported. **Acceptance Scenarios**: 1. **Given** I am authenticated and have an active sync operation, **When** I run the status check command, **Then** I see the current status and progress of the sync 2. **Given** I am authenticated but have no active sync operations, **When** I run the status check command, **Then** I see appropriate status information --- ### Edge Cases - What happens when MFA code expires while entering it? - How does the system handle network interruptions during sync operations? - What happens when the API is temporarily unavailable during authentication? - How does the system handle concurrent sync requests from the same user? - What occurs if a user attempts to check status for a sync job that no longer exists? ## Requirements *(mandatory)* ### Functional Requirements - **FR-001**: System MUST provide a text-based interface for API interactions - **FR-002**: System MUST authenticate users with support for Multi-Factor Authentication (MFA) - **FR-003**: Users MUST be able to trigger a data sync operation from the text-based interface - **FR-004**: Users MUST be able to check the status of ongoing sync operations from the text-based interface - **FR-005**: System MUST securely store authentication credentials and tokens locally - **FR-006**: System MUST support both interactive and non-interactive (scriptable) authentication modes - **FR-007**: System MUST provide clear feedback and error messages to users during all operations - **FR-008**: System MUST handle authentication token expiration and refresh automatically ### Key Entities - **User Session**: Represents an authenticated user session with associated tokens and permissions - **Sync Job**: Represents an initiated sync operation with status, progress, and metadata - **Authentication Token**: Secure credential used to access the API on behalf of the user ## Success Criteria *(mandatory)* ### Measurable Outcomes - **SC-001**: Users can authenticate via text-based interface with and without MFA in under 30 seconds - **SC-002**: 95% of sync operations initiated via text-based interface complete successfully within expected timeframes - **SC-003**: Users can check sync status and receive accurate information within 5 seconds of the command - **SC-004**: 90% of users successfully complete authentication on first attempt when using the text-based interface - **SC-005**: Text-based interface supports all authentication methods available in the main application including MFA - **SC-006**: Users can trigger sync operations from text-based interface as reliably as from the web interface ## Assumptions - The existing API already supports the necessary endpoints for authentication, sync triggering, and status checking - The API authentication mechanism (including MFA) is consistent between the web interface and API endpoints - Users have access to a terminal/command-line environment on their systems - The text-based interface will run in common operating system command-line environments (Windows, macOS, Linux)