holochain_state

The Holochain state crate provides helpers and abstractions for working with Holochain's persistent data stores.

Reads

The [DhtStore] and [DhtStoreRead] types are the main abstractions for reading data, combining database access with the in-memory scratch space.

The [source_chain] module provides the SourceChain type, which is the abstraction for working with chains of actions.

The [host_fn_workspace] module provides abstractions for reading data during workflows.

Writes

The [mutations] module provides error types for state write operations.

In-memory

The [scratch] module provides the Scratch type for reading and writing data in memory that is not visible anywhere else.

The SourceChain type uses the Scratch for in-memory operations which can be flushed to the database.