Internal Reference Updated March 24, 2026

API Integration Documentation Hub

A structured plan for backend engineers to transform the User Dashboard Application from static dummy data to a live, production-ready integrated system.

API Integration Documentation Plan

1 Preparation & Familiarization

  • Review the existing frontend application thoroughly.
  • Understand UI/UX flow and dummy data structures.
  • Identify all data touchpoints (lists, forms, charts).

2 Documentation Creation

Data Mapping

Document dummy data correspondence to potential API requests/responses. Map UI components to required backend models.

Endpoint Specs

Define endpoints, HTTP methods, request payloads, and response formats (JSON) matching the dummy shape.

Auth & Errors

Outline authentication mechanisms (JWT) and standard error response formats (400, 404, 500).

State Needs

Identify frontend states (loading, success, error) dependent on API calls.

3 Integration Planning

Identify Triggers

User actions or component lifecycles triggering calls (Submit, Load).

Mocking Strategy

Initial interaction via Mock Servers or API mocking libraries.

Frontend Points

List specific files/components needing dummy data replacement.

4 Collaboration & Handoff

Share documented specs with frontend and backend teams for review and agreement. Backend starts implementation while frontend prepares client libraries and function stubs.

Project: User Dashboard Application

1. Frontend Application Overview

Current UI Components (with Dummy Data)

User Profile Section
Statistics Cards
Recent Activity List
Project Grid
Task Management Table
Search Bar & Navigation

2.1 Authentication

All endpoints require a valid JWT token passed in the Authorization header:

HTTP Header 
Authorization: Bearer <token>

2.2 API Endpoints

GET User Profile

/api/v1/user/profile

Retrieve authenticated user's profile information.

{
  "id": 123,
  "name": "John Doe",
  "email": "john.doe@example.com",
  "profilePictureUrl": "https://example.com/image.jpg",
  "joinDate": "2025-01-15T18:00:00Z",
  "role": "admin"
}

GET Statistics Summary

/api/v1/user/statistics

Get user-specific dashboard statistics.

{
  "totalProjects": 12,
  "activeTasks": 5,
  "pendingRequests": 2,
  "completedThisWeek": 8
}

GET Recent Activity

/api/v1/user/activity

Fetch recent user activity feed. Query: limit (default: 10).

[
  {
    "id": 456,
    "action": "created_project",
    "description": "Created new project 'Website Redesign'",
    "timestamp": "2026-03-24T10:30:00Z",
    "icon": "project-icon"
  }
]

LIST / CREATE Projects Management

/api/v1/projects
GET Fetch List
  • Filter by status
  • Search by search term
  • Pagination via page, limit
POST Create New
  • Requires title, description
  • Payload for dueDate, assignees
JSON Response Structure 
{
  "data": [{ "id": 789, "title": "Website Redesign", "progress": 65 }],
  "pagination": { "currentPage": 1, "totalPages": 3 }
}

GET Tasks List

/api/v1/tasks

Retrieve list of tasks assigned to user. Supports status, priority, and projectId filters.

{
  "data": [
    {
      "id": 101,
      "name": "Design Homepage Mockup",
      "status": "in-progress",
      "priority": "high",
      "projectTitle": "Website Redesign"
    }
  ]
}

3. Integration Points

Frontend Component Required API(s)
User Profile Card GET /api/v1/user/profile
Statistics Cards GET /api/v1/user/statistics
Recent Activity Feed GET /api/v1/user/activity
Project Grid GET /api/v1/projects
Project Creation Form POST /api/v1/projects
Task Table GET /api/v1/tasks

User Interaction Triggers

  • Page Load: Trigger Profile, Statistics, Activity, and Projects GET calls.
  • Search Input: Debounced call to Projects GET with search param.
  • Create Project: POST request on button click.
  • Pagination: Call GET endpoints with page/limit params.

4. Error Handling Standards

400 Bad Request

Invalid input format or validation failed for specific fields like dates or IDs.

401 Unauthorized

Authentication token is missing, invalid, or has expired after 24 hours.

Error Response Format

{
  "error": "not_found",
  "message": "The resource does not exist",
  "details": {
    "id": "Project not found"
  }
}