File upload with express and AWS S3
express-api-template into your training directory. In step 2 rename
By the end of this lesson, students should be able to:
- Upload files to AWS S3 from a node application.
- Create path names with a low chance of duplication
- Store information about uploaded files in MongoDB via Mongoose
- Upload files from a browser to express and store them in AWS S3.
Adding a feature to a web API can feel formidable.
We'll take a stepped approach to implementing an image upload feature.
Hard problems are hard. We'll work to find and solve an easier problem first.
What are the parts of file upload? What are the issues to guard against?
Node packages checklist
We'll use the following node modules as we build out this feature:
We'll investigate, code, refactor, and integrate all the parts of file upload.
Uploading files to AWS from node
We'll build a command line script in
express-multer-api to upload a file to
Why build a command line uploader?
We'll run the script using
npm run upload-aws <file> [comment].
Refactoring is a skill to cultivate.
Let's separate out the parts that aren't about a command line script so we can reuse them.
Uploading files to an echo server from an html form
We'll use the
index.html to start file uploads.
We'll use the form attribute
enctype="multipart/form-data" to allow uploading
of one or more files.
$.ajax to POST data to an echo server,
Later we'll use this client to POST data to
Uploading files to AWS via multer and express
Completing the parts of file upload.
Source code distributed under the MIT license. Text and other assets copyright General Assembly, Inc., all rights reserved.