Holochain Core Concepts

Welcome to the Core Concepts introduction! In the next few pages, we're going to introduce you to the basics of Holochain, a framework and network protocol for building secure distributed applications. Holochain is different from what you may be used to, but don't worry–-we'll go at a comfortable pace, building on things you already know.

Who is this introduction for?

We've written this introduction for programmers, CTOs, and other technically-oriented people. It's a bit like a choose-your-own-adventure story:

• If you're in a hurry and need to find out if Holochain is a good fit for your project, you can just read the articles–-or even just the intro paragraph at the top of each article.
• If you're a programmer and want to see the concepts come to life, follow the tutorials. Each tutorial is quick–-you'll be creating a running app in anywhere from a few minutes to a few hours. Code samples are written in the Rust programming language.
• If you want to dig deep, each article has links to further reading from the guidebook, API documentation, or web.

Ready? Let's get started.

1. The basics
   • Tutorial: Download and run a chat app
2. Application architecture
   • Tutorial: HelloHolo
   • Tutorial: HelloTest
   • Tutorial: HelloGui
3. Private data on your local source chain
   • Tutorial: HelloMe
4. Public data on the DHT
   • Tutorial: HelloWorld
5. Linking data together
   • Tutorial: SimpleMicroBlog
6. Modifying and deleting data
   • Tutorial: ForgivingMicroBlog
7. Validating data
   • Tutorial: MicroBlog140 or HelloMicroBlog
   • Tutorial: ForgivingMicroBlogWithWriteControl
8. Handling data conflicts with CRDTs or resolution callbacks
   • Tutorial: MicroBlogWithUserNames
9. Sending messages directly to peers
   • Tutorial: PrivateMessenger
10. Securing and delegating zome functions with capability tokens
    • Tutorial: DelegatedMicroBlog
11. Spawning new DNA instances from a template
    • Tutorial: PrivateMicroBlog
12. Securing access to DNA instances with membranes
    • Tutorial: MembersOnly
13. Updating your UI using signals
    • Tutorial: AutoUpdateMicroBlog
14. Bridging across multiple DNA instances
    • Tutorial: TransactionAnnouncements
15. Migrating to new versions of a DNA
    • Tutorial: MicroBlog280
16. Publishing your app to the cloud with Holo Host
    • Tutorial: Submitting to the hApp store

tags: Holochain Core Concepts