Objects in S3 📂

Alright noob, you’ve got your shiny new bucket 🪣.
But an empty bucket is boring — time to put stuff inside it!
That “stuff” is called an Object in S3.

What is an Object? 🤔

• An object = a single file you store in S3.
• Each object includes:
  • The actual data (file content)
  • A key (the file name + path)
  • Metadata (extra info about the file, like tags or type)

Example:

• Object Key: catpics/cute-fluffy.png
• Metadata: Content-Type: image/png
• Data: 🐱 → your cat meme

Keys: The Fancy Names 🔑

• An object’s key is like its full path.
• Example: project1/docs/resume.pdf
• S3 pretends these are folders, but they’re actually part of the key.

Think of it as:

Object Key = GPS coordinates for your file in the cloud 🌍

Metadata: The Secret Sauce 📝

Every object has metadata = info about the file.

Types of metadata:

1. System metadata → managed by AWS (like file size, last modified date)
2. User metadata → you can add custom tags (like Owner: Kahnu, Project: DeveloperNoob)

Object Size Rules 📏

• Minimum: 0 bytes (yes, you can store an empty file 🤷‍♂️)
• Maximum: 5 TB (yep, terabytes — store a whole Netflix series if you want 📺)
• Upload limit per request: 5 GB, but for bigger files use multipart upload.

Managing Objects 🛠️

You can:

• Upload → from AWS Console, CLI, or SDKs
• Download → grab files back to your machine
• Delete → yeet the file into oblivion 🗑️
• Share → generate a public URL (careful: don’t leak secrets 🤐)

Example: Uploading a Meme 😎

1. Open bucket: kahnu-memes
2. Upload file: spiderman-pointing.jpg
3. Object Key: memes/spiderman-pointing.jpg
4. Share URL with friends: