File Analysis API with Node.js and Express
TEXT${framework:Express}${fileType}${responseFormat:JSON}${additionalContext}— replace before using.Act as a Node.js and Express Expert. You are an experienced backend developer specializing in building and maintaining APIs.
Your task is to analyze files uploaded by users and ensure that the API responses remain unchanged in terms of their structure and format.
You will:
- Use the ${framework:Express} framework to handle file uploads.
- Implement file analysis logic to extract necessary information from the uploaded files.
- Ensure that the original API response format is preserved while integrating new logic.
Rules:
- Maintain the integrity and security of the API.
- Adhere to best practices for file handling and API development in Node.js.
Use variables to customize your analysis:
- ${fileType} - type of the file being analyzed
- ${responseFormat:JSON} - expected format of the API response
- ${additionalContext} - any additional context or requirements from the user.Overview
File Analysis API with Node.js and Express is a free prompt on OpenRuna. A curated prompt on OpenRuna for builders using ChatGPT, Claude, and Cursor.
What this prompt does
"File Analysis API with Node.js and Express" is designed to help you get reliable results from AI assistants for real prompt tasks. A curated prompt on OpenRuna for builders using ChatGPT, Claude, and Cursor. It is catalogued in OpenRuna's resource graph so you can discover related prompts, tools, agents, and datasets in one place. Copy the content directly into ChatGPT, Claude, Gemini, or Cursor — or use it as a system prompt / skill instruction where applicable.
Use cases
- Use "File Analysis API with Node.js and Express" when you need a repeatable prompt for professional workflows without writing instructions from scratch each time.
- Adapt this prompt for team onboarding — paste into Claude or ChatGPT and iterate on the output with your project context.
- Combine with related tools and prompts in the same OpenRuna category to build a full stack for your use case.
- Reference during code review or planning sessions when you want consistent AI-assisted quality bars.
Example output
When you run this prompt, expect structured output similar to:
Act as a Node.js and Express Expert. You are an experienced backend developer specializing in building and maintaining APIs.
Your task is to analyze files uploaded by users and ensure that the API responses remain unchanged in terms of their structure and format.
You will:
- Use the ${framework:Express} framework to handle file uploads.
- Implement file analysis logic to extract necessary information from the uploaded files.
- Ensure that the original API response format is preserved while integrating new logic.
Rules:
- Maintain the integrity and security of the API.
- Adhere to best pract…
Outputs vary by model and temperature; treat the first response as a draft and refine with follow-up prompts.Tips by platform
Claude
In Claude, paste the full prompt as the first user message or add it to Project instructions. Ask Claude to confirm assumptions before executing. For long prompts, use Claude's artifact panel to iterate on structured output.
ChatGPT
In ChatGPT, start a new chat and paste this prompt verbatim. Enable GPT-4o or your preferred model for coding tasks. Use follow-ups like "apply this to [your context]" for best results.
Cursor
In Cursor, add key instructions from this prompt to .cursorrules or a SKILL.md file. Reference it in Agent mode with @ mentions. Keep the original title in comments so teammates can find it on OpenRuna.
Frequently asked questions
- What is "File Analysis API with Node.js and Express"?
- It is a prompt listed on OpenRuna — A curated prompt on OpenRuna for builders using ChatGPT, Claude, and Cursor. You can copy and adapt it for ChatGPT, Claude, Cursor, or other AI tools.
- Is this prompt free to use?
- Most OpenRuna resources are open or CC0-licensed. Check the license on this page before commercial use. Premium collections are clearly marked.
- How do I get the best results?
- Replace any template variables, add your project context, and ask the model to confirm assumptions. Iterate in 2–3 follow-up turns rather than expecting a perfect first response.
- Can I use this with Claude and ChatGPT?
- Yes. The prompt is model-agnostic text. Tips on this page cover Claude, ChatGPT, and Cursor specifically.
- Where can I find related resources?
- Scroll to Related resources on this page or browse the category hub on OpenRuna to find connected prompts, tools, and agents in the same topic area.
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