File Metadata Microservice for freeCodeCamp

• extracts uploaded file metadata and stores file using multer node.js middleware
• This was part of the FreeCodeCamp exercises for Front End Certification
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Table of contents

• File Metadata Microservice for freeCodeCamp
  • Table of contents
  • General info
  • Screenshots
  • Technologies
  • Setup
  • Code Examples
  • Features
  • Status & To-Do List
  • Inspiration
  • Contact

General info

• Original instructions (User Stories) from FCC:

1. I can submit a form that includes a file upload.
2. The from file input field has the “name” attribute set to “upfile”. We rely on this in testing.
3. When I submit something, I will receive the file name and size in bytes within the JSON response
4. To handle the file uploading you should use the multer npm package.

Screenshots

.

Technologies

• Node v14 javaScript runtime built on Chrome’s V8 JavaScript engine
• Express v5 Fast, unopinionated, minimalist web framework for Node.js
• multer v1 node.js middleware for handling multipart/form-data, mainly used for uploading files
• Cors v2 node.js package for providing Connect/Express middleware that can be used to enable CORS with various options.

Setup

• Run node server.js for a dev server. Navigate to http://localhost:8080/.
• The app will not automatically reload if you change any of the source files.

Code Examples

• extract from server.js to upload file and produce a json object with file details (or error message if it does not work)

app.post('/api/fileanalyse', upload.single('upfile'), (req, res, next) => {
    const fileSize = req.file && req.file.size;
    console.log(typeof fileSize); //should return 'number'
    res.json(
        typeof fileSize == 'undefined'
            ? { error: 'sorry, but there is a file error' }
            : {
                    name: req.file.originalname,
                    type: req.file.mimetype,
                    size: req.file.size + ' bytes',
              }
    );
});

Features

• multer used to upload files - uploaded files stored in a folder named ‘uploads’. If this folder does not exist then it is created.

Status & To-Do List

• Status: Working
• To-Do: nothing

Inspiration

• freeCodeCamp’s APIs and Microservices Projects - File Metadata Microservice

License

• This project is licensed under the terms of the MIT license.

Contact

• Repo created by ABateman, email: gomezbateman@yahoo.com