← back to examples
production beginner

Persistence Storage Agent

Focused round-trip example for Persist.hibernate/2 and Persist.thaw/3 using ETS-backed checkpoints.

persistence storage operations ops-governance l1

Related guides and notebooks

Concept
Persistence
Understand checkpoint/restore semantics.
Guide
Persistence
Walk through persistence setup and patterns.
Livebook
Persistence
Run the companion notebook in Livebook
Explanation

What this example teaches

Interactive Demo

Run the agent and inspect state

Source Code

Read the production implementation

persistence_storage_agent.ex increment_action.ex add_note_action.ex persistence_storage_agent_live.ex
lib/agent_jido/demos/persistence_storage/actions/add_note_action.ex 19 lines 
defmodule AgentJido.Demos.PersistenceStorage.AddNoteAction do
  @moduledoc """
  Appends a note to persisted state.
  """

  use Jido.Action,
    name: "add_note",
    description: "Adds a note",
    schema: [
      note: [type: :string, required: true]
    ]

  @impl true
  def run(%{note: note}, context) do
    notes = Map.get(context.state, :notes, [])
    {:ok, %{notes: notes ++ [note], status: :updated}}
  end
end