You will get Integrate OpenAI API into your existing web application
Project details
I will integrate OpenAI API into your existing web application and turn it into a reliable, usable AI feature.
This is ideal if you already have a website, admin dashboard, SaaS product, or internal tool and want to add AI capabilities such as chat, content generation, structured outputs, document or form review, scoring, summaries, or AI-assisted workflows.
I work across frontend and backend integration, with experience in Next.js, React, TypeScript, Java/Spring Boot, REST APIs, structured-result parsing, asynchronous processing, and production deployment.
This is ideal if you already have a website, admin dashboard, SaaS product, or internal tool and want to add AI capabilities such as chat, content generation, structured outputs, document or form review, scoring, summaries, or AI-assisted workflows.
I work across frontend and backend integration, with experience in Next.js, React, TypeScript, Java/Spring Boot, REST APIs, structured-result parsing, asynchronous processing, and production deployment.
Programming Languages
JavaScript, Python, JavaCoding Expertise
Cross Browser & Device Compatibility, Localization, SecurityWhat's included
| Service Tiers |
Starter
$99
|
Standard
$299
|
Advanced
$499
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 10 days |
Number of Revisions | 1 | 2 | 2 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
About Junner
IT & Networking
Guiyang, China - 11:16 pm local time
My strongest area is practical AI application development. I do not just connect an LLM API to a chat box—I design the complete workflow around it: user roles, asset management, prompt flows, async tasks, real-time progress, review loops, structured outputs, content safeguards, and usable admin tools.
Recent independent projects include:
• An AI product-image generation workspace for fashion brands, supporting model, pose, and background assets; image generation; review and iteration workflows; credits; downloads; and real-time task progress.
• A browser-based 3D room-planning and wiring workspace built with Three.js and a structured JSON scene engine.
• An AI-powered homework and assessment platform with question-bank, assignment, and workflow features.
What I can help you build:
• AI MVPs and internal tools
• LLM / OpenAI API integrations and AI workflows
• Next.js, React, TypeScript web applications
• Java / Spring Boot backend services and REST APIs
• Admin dashboards, role-based workflows, and real-time task systems
• E-commerce product-image and content-generation workflows
• Interactive 3D web experiences with Three.js
• Deployment, API integration, debugging, and product iteration
Core stack:
Next.js · React · TypeScript · Java · Spring Boot · Python · REST APIs · OpenAI API · Dify · WebSocket · RabbitMQ · Docker · Linux · Nginx · Three.js
Clients work with me when they need clear communication, realistic scope estimates, regular progress updates, and a developer who can take ownership from requirements through delivery.
If you have an AI product idea, an existing application that needs improvement, or a workflow that should be automated, send me a message with your goal and current setup.
Steps for completing your project
After purchasing the project, send requirements so Junner can start the project.
Delivery time starts when Junner receives requirements from you.
Junner works on your project following the steps below.
Revisions may occur after the delivery date.
Codebase and workflow review
I review your current stack, target AI feature, and existing application flow.
Integration plan
I confirm the API approach, inputs, outputs, and required changes before implementation.