> For the complete documentation index, see [llms.txt](https://course.cess.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://course.cess.network/ep7.md).

# Episode 7- CESS DeOSS and DeOSS REST API

* Slides: [Episode 7- CESS DeOSS and DeOSS REST API](https://docs.google.com/presentation/d/19x9v5mARqkAHnQjjRcVmG7ECMJLaUp1OSECEB3shGRg/edit?usp=sharing)

## Topics

* Ways of Development on CESS
  * Interacting with CESS using DeOSS API and SDKs. Difficulty: ★
  * Building and Deploying Smart Contracts. Difficulty: ★★
  * Building Custom Pallets to Integrate with CESS. Difficulty: ★★★
* Why Develop on CESS? CESS Comparision
* What is DeOSS?
* DeOSS System Architecture
  * DeOSS Workflow
  * File Upload Process
  * File Download Process
* Workflow: Interacting with DeOSS
* Demo: Using DeOSS REST API

## Course Videos

### Part 1- CESS DeOSS

{% embed url="<https://youtu.be/hfe1jA6czkk>" %}

### Part 2- Demo: DeOSS REST API

{% embed url="<https://youtu.be/VV3yv4150Yg>" %}

## Action Items

* Join [Discord Channel](https://discord.gg/8dnTGdWQ)
* Join [Telegram](https://t.me/CESS_Storage_official)

## Further Study

* Read through the CESS Doc
  * [CESS DeOSS](https://doc.cess.network/products/deoss)