Graphorin API reference v0.1.0

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Graphorin API reference / @graphorin/workflow / checkpoint-store-memory / InMemoryCheckpointStore

Class: InMemoryCheckpointStore

Defined in: packages/workflow/src/checkpoint-store-memory.ts:33

Pure in-memory CheckpointStore implementation. Thread-safe within a single Node.js event loop because every mutation is synchronous; concurrent runs that share the same instance will see a consistent view.

Stable

Implements

• CheckpointStore

Constructors

Constructor

new InMemoryCheckpointStore(): InMemoryCheckpointStore;

Returns

InMemoryCheckpointStore

Methods

deleteThread()

deleteThread(threadId): Promise<void>;

Defined in: packages/workflow/src/checkpoint-store-memory.ts:141

Parameters

Parameter	Type
threadId	string

Returns

Promise<void>

Implementation of

CheckpointStore.deleteThread

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getTuple()

getTuple(
   threadId, 
   namespace, 
   checkpointId?): Promise<
  | CheckpointTuple
| null>;

Defined in: packages/workflow/src/checkpoint-store-memory.ts:81

Parameters

Parameter	Type
threadId	string
namespace	string
checkpointId?	string

Returns

Promise< | CheckpointTuple | null>

Implementation of

CheckpointStore.getTuple

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list()

list(
   threadId, 
   namespace, 
opts?): AsyncIterable<CheckpointTuple>;

Defined in: packages/workflow/src/checkpoint-store-memory.ts:105

Parameters

Parameter	Type
threadId	string
namespace	string
opts?	ListOptions

Returns

AsyncIterable&lt;CheckpointTuple&gt;

Implementation of

CheckpointStore.list

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put()

put(
   threadId, 
   namespace, 
   checkpoint, 
metadata): Promise<string>;

Defined in: packages/workflow/src/checkpoint-store-memory.ts:37

Parameters

Parameter	Type
threadId	string
namespace	string
checkpoint	Checkpoint
metadata	CheckpointMetadata

Returns

Promise&lt;string&gt;

Implementation of

CheckpointStore.put

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putWrites()

putWrites(
   threadId, 
   namespace, 
   checkpointId, 
   writes, 
taskId): Promise<void>;

Defined in: packages/workflow/src/checkpoint-store-memory.ts:59

Parameters

Parameter	Type
threadId	string
namespace	string
checkpointId	string
writes	readonly PendingWrite[]
taskId	string

Returns

Promise&lt;void&gt;

Implementation of

CheckpointStore.putWrites

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size()

size(): number;

Defined in: packages/workflow/src/checkpoint-store-memory.ts:159

Test-only helper that exposes the raw count of stored checkpoints — handy for assertions like "the runtime wrote exactly N checkpoints across the run".

Returns

number