Frontend Not Integrated with API Endpoint
Frontend component was built but never connected to the actual API endpoint. The component's action buttons call mock functions or make requests to undefined URLs. Moving to production revealed that the UI flow is orphaned from backend logic.
Frontend was developed in isolation without coordinating with API development, leaving integration gaps.
Error Messages You Might See
Common Causes
- Frontend uses mock API functions instead of real HTTP calls
- API endpoint URL is undefined or placeholder string
- Frontend expects different data structure than API actually returns
- Frontend doesn't handle API errors (404, 500, network failures)
- API authentication headers missing from frontend requests
How to Fix It
Replace mock functions with actual HTTP calls (fetch, axios). Define API base URL as environment variable. Match frontend data expectations to actual API response. Add error handling: catch network errors, HTTP errors, show user-friendly messages. Include auth token in request headers: Authorization: Bearer token.
Real developers can help you.
Victor Denisov
Developer
legrab
I'll fill this later
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
Nam Tran
10 years as fullstack developer
Yovel Cohen
I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Basel Issmail
’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems.
My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale.
In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals.
I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software.
David Olverson
Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
How to pass auth tokens in requests?
Set header: Authorization: Bearer {token}. Store token from login response and include in all authenticated requests.
How to handle API errors?
Catch promise rejections. Check response.ok or status code. Display appropriate error messages: 401 = re-auth, 400 = invalid input, 500 = server error.
Should API URL be hardcoded?
No. Use environment variables: const API_URL = process.env.REACT_APP_API_URL. Different URLs for dev/staging/prod.