# User Story: User authentication with OAuth support for Google and GitHub

**Story ID**: US-001
**Epic**: Authentication & Authorization
**Created**: 2025-10-11
**Author**: Alex-BA (Business Analyst)
**Status**: draft
**Priority**: P1
**Estimated Points**: 5

---

## User Story

**As a** user
**I want** User authentication with OAuth support for Google and GitHub
**So that** my data and account remain secure

---

## Acceptance Criteria

### Scenario 1: Happy Path - Feature Works as Expected

```gherkin
Given the system is operational
Given the user is authenticated
When the user uses the user authentication with oauth support for google and github
Then the action completes successfully
Then appropriate feedback is shown to the user
```

### Scenario 2: Error Handling - Invalid Input

```gherkin
Given the system is operational
When the user provides invalid input
Then the system shows a clear error message
Then the system prevents invalid state changes
```

### Scenario 3: Security - Unauthorized Access

```gherkin
Given the user is not authenticated or lacks permissions
When the user attempts to access the feature
Then the system denies access
Then an appropriate error message is displayed
```

---

## Functional Requirements

### Must Have (P0)
- [ ] User authentication with OAuth support for Google and GitHub

---

## Non-Functional Requirements

### Performance
- **Response Time**: < 200ms for API calls
- **Throughput**: Support 100 concurrent users
- **Load Time**: < 2 seconds for page load

### Security
- **Authentication**: OAuth 2.0 or JWT required
- **Authorization**: Role-based access control (RBAC)
- **Data Validation**: Input sanitization and validation required

### Usability
- **Accessibility**: WCAG 2.1 AA compliance
- **Mobile Support**: Responsive design for mobile devices
- **Browser Support**: Chrome, Firefox, Safari, Edge (latest versions)

---

## Technical Notes

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## Definition of Done (DoD)

- [ ] Code implemented and peer-reviewed
- [ ] All acceptance criteria met
- [ ] Unit tests written and passing (>80% coverage)
- [ ] Integration tests passing
- [ ] Security scan completed (no critical issues)
- [ ] Performance benchmarks met
- [ ] Accessibility audit passed (WCAG 2.1 AA)
- [ ] Documentation updated
- [ ] Deployed to staging environment

---

**Story Generated by**: Alex-BA (VERSATIL SDLC Framework)
**Framework Version**: 1.0.0
**Auto-Generated**: 2025-10-11T23:32:26.325Z
