Encode x Sui Educate: Making Your First Smart Contract Using Sui Move
- Objects can be thought of as the building blocks of programming on Sui
struct ThisIsAnObject has key {
id: UID
}
- Every object has 2 things that make it an object: the
has key modifier and id
- The
key refers to a key in global storage
- You can evenutally write this object to global storage
id:UID refers to the unique global identifier generated at runtime
- Objects can have 4 different types of ownership:
- Objects can be owned by an address
- Ex: when purchasing an NFT, the JPEG literally lives under the purchaser's address
- Can be seen when looking up address in Sui explorer
- Objects can be owned by another object
- Ex: in an RPG, a player can either equip or sell a sword
- Since your player is an object, this shows that objects can be owned by other objects
- Objects can also be shared
- Shared objects isn't owned by anybody; it just exists in the Sui network and anyone can interact with it given if they satify the constraints
- Objects can also be immutable
- Immutable objects cannot be changed in any way, anyone can interact with it to essentially get a read-only reference
- Sui utilizes an object-centric programming model
- Objects represent ownership
- Capabilities can be used to gate admin access for functions
- Shared objects can be accessed by anyone
- Interacting w/ shared objects is subject to consensus