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Apidog for Flutter Developers: The Tool That Will Transform How You Develop Apps

Discover how Apidog transforms Flutter development by letting you design APIs, create mock servers, and test endpoints—all before the backend is ready. Learn how this all-in-one tool helps you build faster, collaborate better, and streamline your entire API workflow.

Oliver Kingsley

Oliver Kingsley

25 November 2025

Apidog for Flutter Developers: The Tool That Will Transform How You Develop Apps
Discover how to streamline your API workflow, create mock servers, and build Flutter apps faster.

If you've ever found yourself stuck waiting for backend APIs to be ready before you can start frontend development, this article is for you. Today, I'm going to show you a tool that completely changed how I develop applications—and it's going to change yours too.

Watch the Video Tutorial about How Apidog Transforms Flutter Development

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The Problem Every Developer Faces

Let's talk about a scenario you've probably experienced: You receive the Figma designs for your new app. You're excited to start building. But then reality hits—the backend team is still defining the architecture, communicating with stakeholders, and figuring out what they need to make everything work.

What do most developers do in this situation? They open up a mocking tool, create some mock data, and start building. If you're using clean architecture or similar patterns, you build your business logic separately from the backend, then connect everything later.

But here's the problem:

When you use traditional mocking tools, you can only run them locally. If you need to share with your team, there's a complex process involved. And then there's documentation—you need Swagger for specs, Postman for testing, and various other tools just to get your work done.

You're juggling multiple tools:

This fragmented workflow slows you down and creates opportunities for errors.

Introducing Apidog: Your All-in-One API Solution

Apidog is the tool that brings everything together. It's not just another API tool—it's a complete platform that transforms how you design , mock , test , debug and document APIs.

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What Makes Apidog Special?

Everything in One Place:

Real-Time Collaboration: Just like Git, Apidog supports branching. You can create a branch to work on API modifications without breaking the main documentation. When you're ready, merge your changes, and everyone on your team gets access to the updates.

Getting Started with Apidog

Step 1: Download and Install

Visit apidog.com and download the application for your platform:

I recommend downloading the desktop app for the best experience when testing.

Step 2: Create Your First Project

create the first project at Apidog

Once you've installed Apidog and logged in, create a new project:

  1. Click "New Project"
  2. Name your project (e.g., "My Trip")
  3. Choose your language (English, Japanese, Spanish or Portuguese)
  4. Select HTTP as your API type

Your project workspace is now ready!

Step 3: Import Existing APIs (Optional)

Import Existing APIs

If you already have APIs documented elsewhere, Apidog makes migration easy:

Supported Import Formats:

Simply drag and drop your files, and Apidog imports everything automatically.

Designing Your API: The Schema-First Approach

Why Start with Schemas?

Creating schemas first ensures that both frontend and backend teams know exactly what data structure to expect. This is what we call API Design-First Development.

Creating Your First Schema

Creating the first schema

Let's create a User schema as an example:

  1. Navigate to Schemas in your project
  2. Click "New Schema"
  3. Name it "User"
  4. Add fields:   - id (string) - User identifier   - name (string) - User's full name   - email (string) - User's email address

Adding Mock Data

adding mock data

Here's where Apidog shines. For each field, you can specify mock data generators:

For the name field:

For the email field:

For the id field:

Documentation Built-In

As you create your schema, add descriptions:

Creating Your First Endpoint

Define the Endpoint

Define the Endpoint
  1. Click "New Endpoint"
  2. Set the path: /users
  3. Add a description: "Fetch all users"
  4. Set the HTTP method: GET

Configure Visibility and Status

Apidog lets you track API development status:

Set Up Response

Set Up Response
  1. Click on the 200 Success response
  2. Change the response type to Array
  3. Reference your User schema for array items
  4. Apidog automatically generates mock responses

Multiple Response Scenarios

Document all possible responses:

This helps frontend developers handle all scenarios properly.

The Magic of Mock Servers

Local Mock Server

Once you've saved your endpoint:

  1. Click "Run"
  2. Select "Local Mock" environment
  3. Click "Send"

Boom! You have a working mock API running locally. Open your browser and navigate to the mock URL—you'll see realistic data generated automatically.

Cloud Mock Server (Game Changer!)

This is where Apidog truly stands out:

  1. Go to the Mock tab
  2. Enable "Cloud Mock"
  3. Choose your region (e.g., United States)
  4. Get your shareable cloud URL

Now your mock API is accessible from anywhere—no local server required! Test it on your phone, share it with your team, or use it in your deployed frontend applications.

Why This Matters:

Integrating with Flutter

Generate Dart Code Automatically

generate Dart code automatically

Apidog generates client code for multiple languages. For Flutter developers:

  1. Click "Generate Code" on your endpoint
  2. Select "Dart"
  3. Choose your preferred approach:

Example Generated Code:

class User {

  final String id;

  final String name;

  final String email;



  User({

    required this.id,

    required this.name,

    required this.email,

  });



  factory User.fromJson(Map<String, dynamic> json) {

    return User(

      id: json['id'],

      name: json['name'],

      email: json['email'],

    );

  }

}

Generate API Client Code

Apidog also generates the HTTP client code:

Future<List<User>> fetchUsers() async {

  final response = await http.get(

    Uri.parse('YOUR_MOCK_URL/users'),

  );



  if (response.statusCode == 200) {

    final List<dynamic> decoded = json.decode(response.body);

    return decoded.map((json) => User.fromJson(json)).toList();

  } else {

    throw Exception('Failed to load users');

  }

}

Just copy, paste, and you're ready to go!

Real-World Flutter Integration Example

real-world Flutter integration example

Let me show you a practical example using DartPad:

Step 1: Set Up Your Flutter Project

import 'package:http/http.dart' as http;

import 'dart:convert';



class UserListScreen extends StatefulWidget {

  @override

  _UserListScreenState createState() => _UserListScreenState();

}



class _UserListScreenState extends State<UserListScreen> {

  List<dynamic> users = [];



  Future<void> fetchUsers() async {

    final response = await http.get(

      Uri.parse('YOUR_APIDOG_CLOUD_MOCK_URL/users'),

    );



    if (response.statusCode == 200) {

      final decoded = json.decode(response.body);

      setState(() {

        users = decoded;

      });

    }

  }



  @override

  Widget build(BuildContext context) {

    return Scaffold(

      appBar: AppBar(title: Text('Users')),

      body: ListView.builder(

        itemCount: users.length,

        itemBuilder: (context, index) {

          return ListTile(

            title: Text(users[index]['name']),

            subtitle: Text(users[index]['email']),

          );

        },

      ),

      floatingActionButton: FloatingActionButton(

        onPressed: fetchUsers,

        child: Icon(Icons.refresh),

      ),

    );

  }

}

Step 2: Test with Cloud Mock

  1. Get your cloud mock URL from Apidog
  2. Replace YOUR_APIDOG_CLOUD_MOCK_URL in the code
  3. Run your Flutter app
  4. Click the refresh button

Result: Your app fetches real-looking data from Apidog's cloud mock server. Every time you refresh, you get different realistic data!

Step 3: Configure Mock Data Quantity

Want to test with more data? In Apidog:

  1. Edit your endpoint
  2. Set minimum items: 30
  3. Set maximum items: 50
  4. Save

Now your mock API returns 30-50 users per request—perfect for testing pagination, scrolling, and performance!

Advanced Features for Professional API Development

API tests in Apidog

API Testing Suite

Apidog includes a complete testing framework:

  1. Navigate to the Test tab
  2. Create a new test scenario: "Fetch Users Test"
  3. Set priority level (P0 for critical)
  4. Add test steps:

Run your tests:

Environment Management

Configure multiple environments:

Development Environment:

Testing Environment:

Production Environment:

Team Collaboration with Branching

Just like Git, Apidog supports branching:

Create a Branch:

  1. Click the branch dropdown
  2. Select "Create Branch"
  3. Name it (e.g., "feature/new-endpoints")
  4. Make your changes

Merge Changes:

  1. Click "Merge"
  2. Review differences
  3. Approve and merge
  4. Team members see updates instantlyThis prevents breaking changes and enables parallel development.

CI/CD Integration

CI/CD Integration at Apidog

Integrate Apidog with your development pipeline:

Publishing Professional Documentation

Create Public Documentation

  1. Go to Share Docs → Publish Docs
  2. Configure your documentation:

3. Choose access control:

4. Publish and share the URL

Your API documentation is now live with:

Why Apidog Changes Everything for API Development

For Frontend Developers

No More Waiting:

Better Code Quality:

For Backend Developers

Clear Contracts:

Faster Development:

For Teams

Improved Collaboration:

Reduced Costs:

Real-World Use Case: Demo for Investors

Imagine this scenario: You need to demo your app to investors, but the backend isn't complete for all features.

Traditional Approach:

Apidog Approach:

  1. Create mock endpoints for missing features
  2. Generate realistic dynamic data
  3. Use cloud mock server
  4. Demo works perfectly every time

When backend is ready, simply switch from mock to production URL. No code changes needed!

Getting Started Today

Free Tier Includes:

Enterprise Features:

For larger teams and organizations:

Best Practices for Success

1. Start with Schemas

Always define your data structures first. This ensures consistency and enables all of Apidog's features.

2. Document as You Design

Add descriptions, examples, and constraints while creating endpoints. Future you (and your team) will thank you.

3. Use Realistic Mock Data

Configure mock generators to produce realistic data. This helps catch UI issues early.

4. Test All Scenarios

Document and test success cases, error cases, and edge cases. Comprehensive testing prevents production issues.

5. Leverage Branching

Use branches for experimental changes. Merge only when ready. This keeps your main documentation stable.

6. Integrate with CI/CD

Automate API testing in your pipeline. Catch breaking changes before they reach production.

7. Keep Documentation Updated

When APIs change, update Apidog first. Documentation and mocks update automatically.

Common Questions

Q: Can I use Apidog for free?

A: Yes! The free tier includes all core features for individual developers and small teams.

Q: Does Apidog work with existing APIs?

A: Absolutely. Import from Swagger, Postman, or any OpenAPI specification.

Q: Can I use Apidog offline?

A: Yes, the desktop app works offline. Cloud features require internet connection.

Q: Is my data secure?

A: Yes. Apidog uses enterprise-grade security. You can also deploy on-premises for maximum control.

Q: Can I customize generated code?

A: Yes. Apidog provides templates you can customize for your coding style.

Q: Does Apidog support GraphQL?

A: Currently, Apidog focuses on REST APIs. GraphQL support is on the roadmap.

Conclusion: Transform Your Development Workflow

Apidog isn't just another tool—it's a complete paradigm shift in how you develop applications. By bringing design, documentation, mocking, and testing into one platform, it eliminates the friction that slows down development.

Key Takeaways:

✅ Design APIs before coding - Prevent miscommunication and rework

✅ Generate mock servers instantly - Frontend and backend work in parallel

✅ Create documentation automatically - Always accurate, always current

✅ Test comprehensively - Catch issues before production

✅ Collaborate seamlessly - Branching and merging like Git

✅ Integrate with your workflow - CI/CD, code generation, and more

Whether you're a solo developer or part of a large team, whether you're building a new app or maintaining existing ones, Apidog streamlines your workflow and improves your results.

Ready to transform how you develop apps?

  1. Download Apidog - Free for individual developers
  2. Import your existing APIs or create new ones
  3. Generate mock servers and start building
  4. Share with your team and collaborate

The tool that changed how I develop apps is now available to you. Try it today and experience the difference.

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