SDK (JS/TS)
@langchain/langgraph-sdk¶
Classes¶
Interfaces¶
Functions¶
langchain/langgraph-sdk/auth¶
Classes¶
Interfaces¶
Type Aliases¶
@langchain/langgraph-sdk / Auth
Class: Auth\<TExtra, TAuthReturn, TUser>¶
Defined in: src/auth/index.ts:11
Type Parameters¶
• TExtra = {}
• TAuthReturn extends BaseAuthReturn
= BaseAuthReturn
• TUser extends BaseUser
= ToUserLike
\<TAuthReturn
>
Constructors¶
new Auth()¶
new Auth\<
TExtra
,TAuthReturn
,TUser
>():Auth
\<TExtra
,TAuthReturn
,TUser
>
Returns¶
Auth
\<TExtra
, TAuthReturn
, TUser
>
Methods¶
authenticate()¶
authenticate\<
T
>(cb
):Auth
\<TExtra
,T
>
Defined in: src/auth/index.ts:25
Type Parameters¶
• T extends BaseAuthReturn
Parameters¶
cb¶
AuthenticateCallback
\<T
>
Returns¶
Auth
\<TExtra
, T
>
on()¶
on\<
T
>(event
,callback
):this
Defined in: src/auth/index.ts:32
Type Parameters¶
• T extends CallbackEvent
Parameters¶
event¶
T
callback¶
OnCallback
\<T
, TUser
>
Returns¶
this
@langchain/langgraph-sdk / HTTPException
Class: HTTPException¶
Defined in: src/auth/error.ts:66
Extends¶
Error
Constructors¶
new HTTPException()¶
new HTTPException(
status
,options
?):HTTPException
Defined in: src/auth/error.ts:70
Parameters¶
status¶
number
options?¶
# cause?¶
unknown
# headers?¶
HeadersInit
# message?¶
string
Returns¶
Overrides¶
Error.constructor
Properties¶
cause?¶
optional
cause:unknown
Defined in: node_modules/typescript/lib/lib.es2022.error.d.ts:24
Inherited from¶
Error.cause
headers¶
headers:
HeadersInit
Defined in: src/auth/error.ts:68
message¶
message:
string
Defined in: node_modules/typescript/lib/lib.es5.d.ts:1077
Inherited from¶
Error.message
name¶
name:
string
Defined in: node_modules/typescript/lib/lib.es5.d.ts:1076
Inherited from¶
Error.name
stack?¶
optional
stack:string
Defined in: node_modules/typescript/lib/lib.es5.d.ts:1078
Inherited from¶
Error.stack
status¶
status:
number
Defined in: src/auth/error.ts:67
prepareStackTrace()?¶
static
optional
prepareStackTrace: (err
,stackTraces
) =>any
Defined in: node_modules/types/node/globals.d.ts:28
Optional override for formatting stack traces
Parameters¶
err¶
Error
stackTraces¶
CallSite
[]
Returns¶
any
See¶
https://v8.dev/docs/stack-trace-api#customizing-stack-traces
Inherited from¶
Error.prepareStackTrace
stackTraceLimit¶
static
stackTraceLimit:number
Defined in: node_modules/types/node/globals.d.ts:30
Inherited from¶
Error.stackTraceLimit
Methods¶
captureStackTrace()¶
static
captureStackTrace(targetObject
,constructorOpt
?):void
Defined in: node_modules/types/node/globals.d.ts:21
Create .stack property on a target object
Parameters¶
targetObject¶
object
constructorOpt?¶
Function
Returns¶
void
Inherited from¶
Error.captureStackTrace
@langchain/langgraph-sdk / AuthEventValueMap
Interface: AuthEventValueMap¶
Defined in: src/auth/types.ts:218
Properties¶
assistants:create¶
assistants:create:
object
Defined in: src/auth/types.ts:226
assistant_id?¶
optional
assistant_id:Maybe
\<string
>
config?¶
optional
config:Maybe
\<AssistantConfig
>
graph_id¶
graph_id:
string
if_exists?¶
optional
if_exists:Maybe
\<"raise"
|"do_nothing"
>
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
name?¶
optional
name:Maybe
\<string
>
assistants:delete¶
assistants:delete:
object
Defined in: src/auth/types.ts:229
assistant_id¶
assistant_id:
string
assistants:read¶
assistants:read:
object
Defined in: src/auth/types.ts:227
assistant_id¶
assistant_id:
string
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
assistants:search¶
assistants:search:
object
Defined in: src/auth/types.ts:230
graph_id?¶
optional
graph_id:Maybe
\<string
>
limit?¶
optional
limit:Maybe
\<number
>
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
offset?¶
optional
offset:Maybe
\<number
>
assistants:update¶
assistants:update:
object
Defined in: src/auth/types.ts:228
assistant_id¶
assistant_id:
string
config?¶
optional
config:Maybe
\<AssistantConfig
>
graph_id?¶
optional
graph_id:Maybe
\<string
>
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
name?¶
optional
name:Maybe
\<string
>
version?¶
optional
version:Maybe
\<number
>
crons:create¶
crons:create:
object
Defined in: src/auth/types.ts:232
cron_id?¶
optional
cron_id:Maybe
\<string
>
end_time?¶
optional
end_time:Maybe
\<string
>
payload?¶
optional
payload:Maybe
\<Record
\<string
,unknown
>>
schedule¶
schedule:
string
thread_id?¶
optional
thread_id:Maybe
\<string
>
user_id?¶
optional
user_id:Maybe
\<string
>
crons:delete¶
crons:delete:
object
Defined in: src/auth/types.ts:235
cron_id¶
cron_id:
string
crons:read¶
crons:read:
object
Defined in: src/auth/types.ts:233
cron_id¶
cron_id:
string
crons:search¶
crons:search:
object
Defined in: src/auth/types.ts:236
assistant_id?¶
optional
assistant_id:Maybe
\<string
>
limit?¶
optional
limit:Maybe
\<number
>
offset?¶
optional
offset:Maybe
\<number
>
thread_id?¶
optional
thread_id:Maybe
\<string
>
crons:update¶
crons:update:
object
Defined in: src/auth/types.ts:234
cron_id¶
cron_id:
string
payload?¶
optional
payload:Maybe
\<Record
\<string
,unknown
>>
schedule?¶
optional
schedule:Maybe
\<string
>
store:delete¶
store:delete:
object
Defined in: src/auth/types.ts:242
key¶
key:
string
namespace?¶
optional
namespace:Maybe
\<string
[]>
store:get¶
store:get:
object
Defined in: src/auth/types.ts:239
key¶
key:
string
namespace¶
namespace:
Maybe
\<string
[]>
store:list_namespaces¶
store:list_namespaces:
object
Defined in: src/auth/types.ts:241
limit?¶
optional
limit:Maybe
\<number
>
max_depth?¶
optional
max_depth:Maybe
\<number
>
namespace?¶
optional
namespace:Maybe
\<string
[]>
offset?¶
optional
offset:Maybe
\<number
>
suffix?¶
optional
suffix:Maybe
\<string
[]>
store:put¶
store:put:
object
Defined in: src/auth/types.ts:238
key¶
key:
string
namespace¶
namespace:
string
[]
value¶
value:
Record
\<string
,unknown
>
store:search¶
store:search:
object
Defined in: src/auth/types.ts:240
filter?¶
optional
filter:Maybe
\<Record
\<string
,unknown
>>
limit?¶
optional
limit:Maybe
\<number
>
namespace?¶
optional
namespace:Maybe
\<string
[]>
offset?¶
optional
offset:Maybe
\<number
>
query?¶
optional
query:Maybe
\<string
>
threads:create¶
threads:create:
object
Defined in: src/auth/types.ts:219
if_exists?¶
optional
if_exists:Maybe
\<"raise"
|"do_nothing"
>
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
thread_id?¶
optional
thread_id:Maybe
\<string
>
threads:create_run¶
threads:create_run:
object
Defined in: src/auth/types.ts:224
after_seconds?¶
optional
after_seconds:Maybe
\<number
>
assistant_id¶
assistant_id:
string
if_not_exists?¶
optional
if_not_exists:Maybe
\<"reject"
|"create"
>
kwargs¶
kwargs:
Record
\<string
,unknown
>
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
multitask_strategy?¶
optional
multitask_strategy:Maybe
\<"reject"
|"interrupt"
|"rollback"
|"enqueue"
>
prevent_insert_if_inflight?¶
optional
prevent_insert_if_inflight:Maybe
\<boolean
>
run_id¶
run_id:
string
status¶
status:
Maybe
\<"pending"
|"running"
|"error"
|"success"
|"timeout"
|"interrupted"
>
thread_id?¶
optional
thread_id:Maybe
\<string
>
threads:delete¶
threads:delete:
object
Defined in: src/auth/types.ts:222
run_id?¶
optional
run_id:Maybe
\<string
>
thread_id?¶
optional
thread_id:Maybe
\<string
>
threads:read¶
threads:read:
object
Defined in: src/auth/types.ts:220
thread_id?¶
optional
thread_id:Maybe
\<string
>
threads:search¶
threads:search:
object
Defined in: src/auth/types.ts:223
limit?¶
optional
limit:Maybe
\<number
>
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
offset?¶
optional
offset:Maybe
\<number
>
status?¶
optional
status:Maybe
\<"error"
|"interrupted"
|"idle"
|"busy"
|string
&object
>
thread_id?¶
optional
thread_id:Maybe
\<string
>
values?¶
optional
values:Maybe
\<Record
\<string
,unknown
>>
threads:update¶
threads:update:
object
Defined in: src/auth/types.ts:221
action?¶
optional
action:Maybe
\<"interrupt"
|"rollback"
>
metadata?¶
optional
metadata:Maybe
\<Record
\<string
,unknown
>>
thread_id?¶
optional
thread_id:Maybe
\<string
>
@langchain/langgraph-sdk / AuthFilters
Type Alias: AuthFilters\<TKey>¶
AuthFilters\<
TKey
>: { [key in TKey]: string | { [op in "\(contains" \| "\)eq"]?: string } }
Defined in: src/auth/types.ts:367
Type Parameters¶
• TKey extends string
| number
| symbol
@langchain/langgraph-sdk / AssistantsClient
Class: AssistantsClient¶
Defined in: client.ts:290
Extends¶
BaseClient
Constructors¶
new AssistantsClient()¶
new AssistantsClient(
config
?):AssistantsClient
Defined in: client.ts:86
Parameters¶
config?¶
Returns¶
Inherited from¶
BaseClient.constructor
Methods¶
create()¶
create(
payload
):Promise
\<Assistant
>
Defined in: client.ts:355
Create a new assistant.
Parameters¶
payload¶
Payload for creating an assistant.
# assistantId?¶
string
# config?¶
Config
# description?¶
string
# graphId¶
string
# ifExists?¶
OnConflictBehavior
# metadata?¶
Metadata
# name?¶
string
Returns¶
Promise
\<Assistant
>
The created assistant.
delete()¶
delete(
assistantId
):Promise
\<void
>
Defined in: client.ts:411
Delete an assistant.
Parameters¶
assistantId¶
string
ID of the assistant.
Returns¶
Promise
\<void
>
get()¶
get(
assistantId
):Promise
\<Assistant
>
Defined in: client.ts:297
Get an assistant by ID.
Parameters¶
assistantId¶
string
The ID of the assistant.
Returns¶
Promise
\<Assistant
>
Assistant
getGraph()¶
getGraph(
assistantId
,options
?):Promise
\<AssistantGraph
>
Defined in: client.ts:307
Get the JSON representation of the graph assigned to a runnable
Parameters¶
assistantId¶
string
The ID of the assistant.
options?¶
# xray?¶
number
| boolean
Whether to include subgraphs in the serialized graph representation. If an integer value is provided, only subgraphs with a depth less than or equal to the value will be included.
Returns¶
Promise
\<AssistantGraph
>
Serialized graph
getSchemas()¶
getSchemas(
assistantId
):Promise
\<GraphSchema
>
Defined in: client.ts:321
Get the state and config schema of the graph assigned to a runnable
Parameters¶
assistantId¶
string
The ID of the assistant.
Returns¶
Promise
\<GraphSchema
>
Graph schema
getSubgraphs()¶
getSubgraphs(
assistantId
,options
?):Promise
\<Subgraphs
>
Defined in: client.ts:332
Get the schemas of an assistant by ID.
Parameters¶
assistantId¶
string
The ID of the assistant to get the schema of.
options?¶
Additional options for getting subgraphs, such as namespace or recursion extraction.
# namespace?¶
string
# recurse?¶
boolean
Returns¶
Promise
\<Subgraphs
>
The subgraphs of the assistant.
getVersions()¶
getVersions(
assistantId
,payload
?):Promise
\<AssistantVersion
[]>
Defined in: client.ts:445
List all versions of an assistant.
Parameters¶
assistantId¶
string
ID of the assistant.
payload?¶
# limit?¶
number
# metadata?¶
Metadata
# offset?¶
number
Returns¶
Promise
\<AssistantVersion
[]>
List of assistant versions.
search()¶
search(
query
?):Promise
\<Assistant
[]>
Defined in: client.ts:422
List assistants.
Parameters¶
query?¶
Query options.
# graphId?¶
string
# limit?¶
number
# metadata?¶
Metadata
# offset?¶
number
Returns¶
Promise
\<Assistant
[]>
List of assistants.
setLatest()¶
setLatest(
assistantId
,version
):Promise
\<Assistant
>
Defined in: client.ts:473
Change the version of an assistant.
Parameters¶
assistantId¶
string
ID of the assistant.
version¶
number
The version to change to.
Returns¶
Promise
\<Assistant
>
The updated assistant.
update()¶
update(
assistantId
,payload
):Promise
\<Assistant
>
Defined in: client.ts:384
Update an assistant.
Parameters¶
assistantId¶
string
ID of the assistant.
payload¶
Payload for updating the assistant.
# config?¶
Config
# description?¶
string
# graphId?¶
string
# metadata?¶
Metadata
# name?¶
string
Returns¶
Promise
\<Assistant
>
The updated assistant.
@langchain/langgraph-sdk / Client
Class: Client\<TStateType, TUpdateType, TCustomEventType>¶
Defined in: client.ts:1426
Type Parameters¶
• TStateType = DefaultValues
• TUpdateType = TStateType
• TCustomEventType = unknown
Constructors¶
new Client()¶
new Client\<
TStateType
,TUpdateType
,TCustomEventType
>(config
?):Client
\<TStateType
,TUpdateType
,TCustomEventType
>
Defined in: client.ts:1462
Parameters¶
config?¶
Returns¶
Client
\<TStateType
, TUpdateType
, TCustomEventType
>
Properties¶
~ui¶
~ui:
UiClient
Defined in: client.ts:1460
Internal
The client for interacting with the UI. Used by LoadExternalComponent and the API might change in the future.
assistants¶
assistants:
AssistantsClient
Defined in: client.ts:1434
The client for interacting with assistants.
crons¶
crons:
CronsClient
Defined in: client.ts:1449
The client for interacting with cron runs.
runs¶
runs:
RunsClient
\<TStateType
,TUpdateType
,TCustomEventType
>
Defined in: client.ts:1444
The client for interacting with runs.
store¶
store:
StoreClient
Defined in: client.ts:1454
The client for interacting with the KV store.
threads¶
threads:
ThreadsClient
\<TStateType
,TUpdateType
>
Defined in: client.ts:1439
The client for interacting with threads.
@langchain/langgraph-sdk / CronsClient
Class: CronsClient¶
Defined in: client.ts:195
Extends¶
BaseClient
Constructors¶
new CronsClient()¶
new CronsClient(
config
?):CronsClient
Defined in: client.ts:86
Parameters¶
config?¶
Returns¶
Inherited from¶
BaseClient.constructor
Methods¶
create()¶
create(
assistantId
,payload
?):Promise
\<CronCreateResponse
>
Defined in: client.ts:235
Parameters¶
assistantId¶
string
Assistant ID to use for this cron job.
payload?¶
CronsCreatePayload
Payload for creating a cron job.
Returns¶
Promise
\<CronCreateResponse
>
createForThread()¶
createForThread(
threadId
,assistantId
,payload
?):Promise
\<CronCreateForThreadResponse
>
Defined in: client.ts:203
Parameters¶
threadId¶
string
The ID of the thread.
assistantId¶
string
Assistant ID to use for this cron job.
payload?¶
CronsCreatePayload
Payload for creating a cron job.
Returns¶
Promise
\<CronCreateForThreadResponse
>
The created background run.
delete()¶
delete(
cronId
):Promise
\<void
>
Defined in: client.ts:261
Parameters¶
cronId¶
string
Cron ID of Cron job to delete.
Returns¶
Promise
\<void
>
search()¶
search(
query
?):Promise
\<Cron
[]>
Defined in: client.ts:272
Parameters¶
query?¶
Query options.
# assistantId?¶
string
# limit?¶
number
# offset?¶
number
# threadId?¶
string
Returns¶
Promise
\<Cron
[]>
List of crons.
@langchain/langgraph-sdk / RunsClient
Class: RunsClient\<TStateType, TUpdateType, TCustomEventType>¶
Defined in: client.ts:757
Extends¶
BaseClient
Type Parameters¶
• TStateType = DefaultValues
• TUpdateType = TStateType
• TCustomEventType = unknown
Constructors¶
new RunsClient()¶
new RunsClient\<
TStateType
,TUpdateType
,TCustomEventType
>(config
?):RunsClient
\<TStateType
,TUpdateType
,TCustomEventType
>
Defined in: client.ts:86
Parameters¶
config?¶
Returns¶
RunsClient
\<TStateType
, TUpdateType
, TCustomEventType
>
Inherited from¶
BaseClient.constructor
Methods¶
cancel()¶
cancel(
threadId
,runId
,wait
,action
):Promise
\<void
>
Defined in: client.ts:1041
Cancel a run.
Parameters¶
threadId¶
string
The ID of the thread.
runId¶
string
The ID of the run.
wait¶
boolean
= false
Whether to block when canceling
action¶
CancelAction
= "interrupt"
Action to take when cancelling the run. Possible values are interrupt
or rollback
. Default is interrupt
.
Returns¶
Promise
\<void
>
create()¶
create(
threadId
,assistantId
,payload
?):Promise
\<Run
>
Defined in: client.ts:865
Create a run.
Parameters¶
threadId¶
string
The ID of the thread.
assistantId¶
string
Assistant ID to use for this run.
payload?¶
RunsCreatePayload
Payload for creating a run.
Returns¶
Promise
\<Run
>
The created run.
createBatch()¶
createBatch(
payloads
):Promise
\<Run
[]>
Defined in: client.ts:900
Create a batch of stateless background runs.
Parameters¶
payloads¶
RunsCreatePayload
& object
[]
An array of payloads for creating runs.
Returns¶
Promise
\<Run
[]>
An array of created runs.
delete()¶
delete(
threadId
,runId
):Promise
\<void
>
Defined in: client.ts:1135
Delete a run.
Parameters¶
threadId¶
string
The ID of the thread.
runId¶
string
The ID of the run.
Returns¶
Promise
\<void
>
get()¶
get(
threadId
,runId
):Promise
\<Run
>
Defined in: client.ts:1028
Get a run by ID.
Parameters¶
threadId¶
string
The ID of the thread.
runId¶
string
The ID of the run.
Returns¶
Promise
\<Run
>
The run.
join()¶
join(
threadId
,runId
,options
?):Promise
\<void
>
Defined in: client.ts:1063
Block until a run is done.
Parameters¶
threadId¶
string
The ID of the thread.
runId¶
string
The ID of the run.
options?¶
# signal?¶
AbortSignal
Returns¶
Promise
\<void
>
joinStream()¶
joinStream(
threadId
,runId
,options
?):AsyncGenerator
\<{data
:any
;event
:StreamEvent
; }>
Defined in: client.ts:1089
Stream output from a run in real-time, until the run is done. Output is not buffered, so any output produced before this call will not be received here.
Parameters¶
threadId¶
string
The ID of the thread.
runId¶
string
The ID of the run.
options?¶
Additional options for controlling the stream behavior: - signal: An AbortSignal that can be used to cancel the stream request - cancelOnDisconnect: When true, automatically cancels the run if the client disconnects from the stream - streamMode: Controls what types of events to receive from the stream (can be a single mode or array of modes) Must be a subset of the stream modes passed when creating the run. Background runs default to having the union of all stream modes enabled.
AbortSignal
| { cancelOnDisconnect
: boolean
; signal
: AbortSignal
; streamMode
: StreamMode
| StreamMode
[]; }
Returns¶
AsyncGenerator
\<{ data
: any
; event
: StreamEvent
; }>
An async generator yielding stream parts.
list()¶
list(
threadId
,options
?):Promise
\<Run
[]>
Defined in: client.ts:991
List all runs for a thread.
Parameters¶
threadId¶
string
The ID of the thread.
options?¶
Filtering and pagination options.
# limit?¶
number
Maximum number of runs to return. Defaults to 10
# offset?¶
number
Offset to start from. Defaults to 0.
# status?¶
RunStatus
Status of the run to filter by.
Returns¶
Promise
\<Run
[]>
List of runs.
stream()¶
Create a run and stream the results.
Param¶
The ID of the thread.
Param¶
Assistant ID to use for this run.
Param¶
Payload for creating a run.
Call Signature¶
stream\<
TStreamMode
,TSubgraphs
>(threadId
,assistantId
,payload
?):TypedAsyncGenerator
\<TStreamMode
,TSubgraphs
,TStateType
,TUpdateType
,TCustomEventType
>
Defined in: client.ts:762
Type Parameters¶
• TStreamMode extends StreamMode
| StreamMode
[] = StreamMode
• TSubgraphs extends boolean
= false
Parameters¶
# threadId¶
null
# assistantId¶
string
# payload?¶
Omit
\<RunsStreamPayload
\<TStreamMode
, TSubgraphs
>, "multitaskStrategy"
| "onCompletion"
>
Returns¶
TypedAsyncGenerator
\<TStreamMode
, TSubgraphs
, TStateType
, TUpdateType
, TCustomEventType
>
Call Signature¶
stream\<
TStreamMode
,TSubgraphs
>(threadId
,assistantId
,payload
?):TypedAsyncGenerator
\<TStreamMode
,TSubgraphs
,TStateType
,TUpdateType
,TCustomEventType
>
Defined in: client.ts:780
Type Parameters¶
• TStreamMode extends StreamMode
| StreamMode
[] = StreamMode
• TSubgraphs extends boolean
= false
Parameters¶
# threadId¶
string
# assistantId¶
string
# payload?¶
RunsStreamPayload
\<TStreamMode
, TSubgraphs
>
Returns¶
TypedAsyncGenerator
\<TStreamMode
, TSubgraphs
, TStateType
, TUpdateType
, TCustomEventType
>
wait()¶
Create a run and wait for it to complete.
Param¶
The ID of the thread.
Param¶
Assistant ID to use for this run.
Param¶
Payload for creating a run.
Call Signature¶
wait(
threadId
,assistantId
,payload
?):Promise
\<DefaultValues
>
Defined in: client.ts:917
Parameters¶
# threadId¶
null
# assistantId¶
string
# payload?¶
Omit
\<RunsWaitPayload
, "multitaskStrategy"
| "onCompletion"
>
Returns¶
Promise
\<DefaultValues
>
Call Signature¶
wait(
threadId
,assistantId
,payload
?):Promise
\<DefaultValues
>
Defined in: client.ts:923
Parameters¶
# threadId¶
string
# assistantId¶
string
# payload?¶
RunsWaitPayload
Returns¶
Promise
\<DefaultValues
>
@langchain/langgraph-sdk / StoreClient
Class: StoreClient¶
Defined in: client.ts:1153
Extends¶
BaseClient
Constructors¶
new StoreClient()¶
new StoreClient(
config
?):StoreClient
Defined in: client.ts:86
Parameters¶
config?¶
Returns¶
Inherited from¶
BaseClient.constructor
Methods¶
deleteItem()¶
deleteItem(
namespace
,key
):Promise
\<void
>
Defined in: client.ts:1274
Delete an item.
Parameters¶
namespace¶
string
[]
A list of strings representing the namespace path.
key¶
string
The unique identifier for the item.
Returns¶
Promise
\<void
>
Promise
getItem()¶
getItem(
namespace
,key
,options
?):Promise
\<null
|Item
>
Defined in: client.ts:1230
Retrieve a single item.
Parameters¶
namespace¶
string
[]
A list of strings representing the namespace path.
key¶
string
The unique identifier for the item.
options?¶
# refreshTtl?¶
null
| boolean
Whether to refresh the TTL on this read operation. If null, uses the store's default behavior.
Returns¶
Promise
\<null
| Item
>
Promise
Example¶
const item = await client.store.getItem(
["documents", "user123"],
"item456",
{ refreshTtl: true }
);
console.log(item);
// {
// namespace: ["documents", "user123"],
// key: "item456",
// value: { title: "My Document", content: "Hello World" },
// createdAt: "2024-07-30T12:00:00Z",
// updatedAt: "2024-07-30T12:00:00Z"
// }
listNamespaces()¶
listNamespaces(
options
?):Promise
\<ListNamespaceResponse
>
Defined in: client.ts:1370
List namespaces with optional match conditions.
Parameters¶
options?¶
# limit?¶
number
Maximum number of namespaces to return (default is 100).
# maxDepth?¶
number
Optional integer specifying the maximum depth of namespaces to return.
# offset?¶
number
Number of namespaces to skip before returning results (default is 0).
# prefix?¶
string
[]
Optional list of strings representing the prefix to filter namespaces.
# suffix?¶
string
[]
Optional list of strings representing the suffix to filter namespaces.
Returns¶
Promise
\<ListNamespaceResponse
>
Promise
putItem()¶
putItem(
namespace
,key
,value
,options
?):Promise
\<void
>
Defined in: client.ts:1174
Store or update an item.
Parameters¶
namespace¶
string
[]
A list of strings representing the namespace path.
key¶
string
The unique identifier for the item within the namespace.
value¶
Record
\<string
, any
>
A dictionary containing the item's data.
options?¶
# index?¶
null
| false
| string
[]
Controls search indexing - null (use defaults), false (disable), or list of field paths to index.
# ttl?¶
null
| number
Optional time-to-live in minutes for the item, or null for no expiration.
Returns¶
Promise
\<void
>
Promise
Example¶
await client.store.putItem(
["documents", "user123"],
"item456",
{ title: "My Document", content: "Hello World" },
{ ttl: 60 } // expires in 60 minutes
);
searchItems()¶
searchItems(
namespacePrefix
,options
?):Promise
\<SearchItemsResponse
>
Defined in: client.ts:1325
Search for items within a namespace prefix.
Parameters¶
namespacePrefix¶
string
[]
List of strings representing the namespace prefix.
options?¶
# filter?¶
Record
\<string
, any
>
Optional dictionary of key-value pairs to filter results.
# limit?¶
number
Maximum number of items to return (default is 10).
# offset?¶
number
Number of items to skip before returning results (default is 0).
# query?¶
string
Optional search query.
# refreshTtl?¶
null
| boolean
Whether to refresh the TTL on items returned by this search. If null, uses the store's default behavior.
Returns¶
Promise
\<SearchItemsResponse
>
Promise
Example¶
const results = await client.store.searchItems(
["documents"],
{
filter: { author: "John Doe" },
limit: 5,
refreshTtl: true
}
);
console.log(results);
// {
// items: [
// {
// namespace: ["documents", "user123"],
// key: "item789",
// value: { title: "Another Document", author: "John Doe" },
// createdAt: "2024-07-30T12:00:00Z",
// updatedAt: "2024-07-30T12:00:00Z"
// },
// // ... additional items ...
// ]
// }
@langchain/langgraph-sdk / ThreadsClient
Class: ThreadsClient\<TStateType, TUpdateType>¶
Defined in: client.ts:481
Extends¶
BaseClient
Type Parameters¶
• TStateType = DefaultValues
• TUpdateType = TStateType
Constructors¶
new ThreadsClient()¶
new ThreadsClient\<
TStateType
,TUpdateType
>(config
?):ThreadsClient
\<TStateType
,TUpdateType
>
Defined in: client.ts:86
Parameters¶
config?¶
Returns¶
ThreadsClient
\<TStateType
, TUpdateType
>
Inherited from¶
BaseClient.constructor
Methods¶
copy()¶
copy(
threadId
):Promise
\<Thread
\<TStateType
>>
Defined in: client.ts:558
Copy an existing thread
Parameters¶
threadId¶
string
ID of the thread to be copied
Returns¶
Promise
\<Thread
\<TStateType
>>
Newly copied thread
create()¶
create(
payload
?):Promise
\<Thread
\<TStateType
>>
Defined in: client.ts:503
Create a new thread.
Parameters¶
payload?¶
Payload for creating a thread.
# graphId?¶
string
Graph ID to associate with the thread.
# ifExists?¶
OnConflictBehavior
How to handle duplicate creation.
Default
# metadata?¶
Metadata
Metadata for the thread.
# supersteps?¶
object
[]
Apply a list of supersteps when creating a thread, each containing a sequence of updates.
Used for copying a thread between deployments.
# threadId?¶
string
ID of the thread to create.
If not provided, a random UUID will be generated.
Returns¶
Promise
\<Thread
\<TStateType
>>
The created thread.
delete()¶
delete(
threadId
):Promise
\<void
>
Defined in: client.ts:591
Delete a thread.
Parameters¶
threadId¶
string
ID of the thread.
Returns¶
Promise
\<void
>
get()¶
get\<
ValuesType
>(threadId
):Promise
\<Thread
\<ValuesType
>>
Defined in: client.ts:491
Get a thread by ID.
Type Parameters¶
• ValuesType = TStateType
Parameters¶
threadId¶
string
ID of the thread.
Returns¶
Promise
\<Thread
\<ValuesType
>>
The thread.
getHistory()¶
getHistory\<
ValuesType
>(threadId
,options
?):Promise
\<ThreadState
\<ValuesType
>[]>
Defined in: client.ts:733
Get all past states for a thread.
Type Parameters¶
• ValuesType = TStateType
Parameters¶
threadId¶
string
ID of the thread.
options?¶
Additional options.
# before?¶
Config
# checkpoint?¶
Partial
\<Omit
\<Checkpoint
, "thread_id"
>>
# limit?¶
number
# metadata?¶
Metadata
Returns¶
Promise
\<ThreadState
\<ValuesType
>[]>
List of thread states.
getState()¶
getState\<
ValuesType
>(threadId
,checkpoint
?,options
?):Promise
\<ThreadState
\<ValuesType
>>
Defined in: client.ts:640
Get state for a thread.
Type Parameters¶
• ValuesType = TStateType
Parameters¶
threadId¶
string
ID of the thread.
checkpoint?¶
string
| Checkpoint
options?¶
# subgraphs?¶
boolean
Returns¶
Promise
\<ThreadState
\<ValuesType
>>
Thread state.
patchState()¶
patchState(
threadIdOrConfig
,metadata
):Promise
\<void
>
Defined in: client.ts:703
Patch the metadata of a thread.
Parameters¶
threadIdOrConfig¶
Thread ID or config to patch the state of.
string
| Config
metadata¶
Metadata
Metadata to patch the state with.
Returns¶
Promise
\<void
>
search()¶
search\<
ValuesType
>(query
?):Promise
\<Thread
\<ValuesType
>[]>
Defined in: client.ts:603
List threads
Type Parameters¶
• ValuesType = TStateType
Parameters¶
query?¶
Query options
# limit?¶
number
Maximum number of threads to return. Defaults to 10
# metadata?¶
Metadata
Metadata to filter threads by.
# offset?¶
number
Offset to start from.
# status?¶
ThreadStatus
Thread status to filter on. Must be one of 'idle', 'busy', 'interrupted' or 'error'.
Returns¶
Promise
\<Thread
\<ValuesType
>[]>
List of threads
update()¶
update(
threadId
,payload
?):Promise
\<Thread
\<DefaultValues
>>
Defined in: client.ts:571
Update a thread.
Parameters¶
threadId¶
string
ID of the thread.
payload?¶
Payload for updating the thread.
# metadata?¶
Metadata
Metadata for the thread.
Returns¶
Promise
\<Thread
\<DefaultValues
>>
The updated thread.
updateState()¶
updateState\<
ValuesType
>(threadId
,options
):Promise
\<Pick
\<Config
,"configurable"
>>
Defined in: client.ts:674
Add state to a thread.
Type Parameters¶
• ValuesType = TUpdateType
Parameters¶
threadId¶
string
The ID of the thread.
options¶
# asNode?¶
string
# checkpoint?¶
Checkpoint
# checkpointId?¶
string
# values¶
ValuesType
Returns¶
Promise
\<Pick
\<Config
, "configurable"
>>
@langchain/langgraph-sdk / getApiKey
Function: getApiKey()¶
getApiKey(
apiKey
?):undefined
|string
Defined in: client.ts:51
Get the API key from the environment. Precedence: 1. explicit argument 2. LANGGRAPH_API_KEY 3. LANGSMITH_API_KEY 4. LANGCHAIN_API_KEY
Parameters¶
apiKey?¶
string
Optional API key provided as an argument
Returns¶
undefined
| string
The API key if found, otherwise undefined
@langchain/langgraph-sdk / ClientConfig
Interface: ClientConfig¶
Defined in: client.ts:69
Properties¶
apiKey?¶
optional
apiKey:string
Defined in: client.ts:71
apiUrl?¶
optional
apiUrl:string
Defined in: client.ts:70
callerOptions?¶
optional
callerOptions:AsyncCallerParams
Defined in: client.ts:72
defaultHeaders?¶
optional
defaultHeaders:Record
\<string
,undefined
|null
|string
>
Defined in: client.ts:74
timeoutMs?¶
optional
timeoutMs:number
Defined in: client.ts:73
langchain/langgraph-sdk/react¶
Interfaces¶
Type Aliases¶
Functions¶
@langchain/langgraph-sdk / useStream
Function: useStream()¶
useStream\<
StateType
,Bag
>(options
):UseStream
\<StateType
,Bag
>
Defined in: react/stream.tsx:601
Type Parameters¶
• StateType extends Record
\<string
, unknown
> = Record
\<string
, unknown
>
• Bag extends object
= BagTemplate
Parameters¶
options¶
UseStreamOptions
\<StateType
, Bag
>
Returns¶
UseStream
\<StateType
, Bag
>
@langchain/langgraph-sdk / UseStream
Interface: UseStream\<StateType, Bag>¶
Defined in: react/stream.tsx:490
Type Parameters¶
• StateType extends Record
\<string
, unknown
> = Record
\<string
, unknown
>
• Bag extends BagTemplate
= BagTemplate
Properties¶
assistantId¶
assistantId:
string
Defined in: react/stream.tsx:575
The ID of the assistant to use.
branch¶
branch:
string
Defined in: react/stream.tsx:525
The current branch of the thread.
client¶
client:
Client
Defined in: react/stream.tsx:570
LangGraph SDK client used to send request and receive responses.
error¶
error:
unknown
Defined in: react/stream.tsx:502
Last seen error from the thread or during streaming.
experimental_branchTree¶
experimental_branchTree:
Sequence
\<StateType
>
Defined in: react/stream.tsx:541
Experimental
Tree of all branches for the thread.
getMessagesMetadata()¶
getMessagesMetadata: (
message
,index
?) =>undefined
|MessageMetadata
\<StateType
>
Defined in: react/stream.tsx:562
Get the metadata for a message, such as first thread state the message was seen in and branch information.
Parameters¶
message¶
Message
The message to get the metadata for.
index?¶
number
The index of the message in the thread.
Returns¶
undefined
| MessageMetadata
\<StateType
>
The metadata for the message.
history¶
history:
ThreadState
\<StateType
>[]
Defined in: react/stream.tsx:535
Flattened history of thread states of a thread.
interrupt¶
interrupt:
undefined
|Interrupt
\<GetInterruptType
\<Bag
>>
Defined in: react/stream.tsx:546
Get the interrupt value for the stream if interrupted.
isLoading¶
isLoading:
boolean
Defined in: react/stream.tsx:507
Whether the stream is currently running.
messages¶
messages:
Message
[]
Defined in: react/stream.tsx:552
Messages inferred from the thread. Will automatically update with incoming message chunks.
setBranch()¶
setBranch: (
branch
) =>void
Defined in: react/stream.tsx:530
Set the branch of the thread.
Parameters¶
branch¶
string
Returns¶
void
stop()¶
stop: () =>
void
Defined in: react/stream.tsx:512
Stops the stream.
Returns¶
void
submit()¶
submit: (
values
,options
?) =>void
Defined in: react/stream.tsx:517
Create and stream a run to the thread.
Parameters¶
values¶
undefined
| null
| GetUpdateType
\<Bag
, StateType
>
options?¶
SubmitOptions
\<StateType
, GetConfigurableType
\<Bag
>>
Returns¶
void
values¶
values:
StateType
Defined in: react/stream.tsx:497
The current values of the thread.
@langchain/langgraph-sdk / UseStreamOptions
Interface: UseStreamOptions\<StateType, Bag>¶
Defined in: react/stream.tsx:408
Type Parameters¶
• StateType extends Record
\<string
, unknown
> = Record
\<string
, unknown
>
• Bag extends BagTemplate
= BagTemplate
Properties¶
apiKey?¶
optional
apiKey:string
Defined in: react/stream.tsx:425
The API key to use.
apiUrl¶
apiUrl:
undefined
|string
Defined in: react/stream.tsx:420
The URL of the API to use.
assistantId¶
assistantId:
string
Defined in: react/stream.tsx:415
The ID of the assistant to use.
callerOptions?¶
optional
callerOptions:AsyncCallerParams
Defined in: react/stream.tsx:430
Custom call options, such as custom fetch implementation.
defaultHeaders?¶
optional
defaultHeaders:Record
\<string
,undefined
|null
|string
>
Defined in: react/stream.tsx:435
Default headers to send with requests.
messagesKey?¶
optional
messagesKey:string
Defined in: react/stream.tsx:443
Specify the key within the state that contains messages. Defaults to "messages".
Default¶
onCustomEvent()?¶
optional
onCustomEvent: (data
,options
) =>void
Defined in: react/stream.tsx:465
Callback that is called when a custom event is received.
Parameters¶
data¶
GetCustomEventType
\<Bag
>
options¶
# mutate¶
(update
) => void
Returns¶
void
onError()?¶
optional
onError: (error
) =>void
Defined in: react/stream.tsx:448
Callback that is called when an error occurs.
Parameters¶
error¶
unknown
Returns¶
void
onFinish()?¶
optional
onFinish: (state
) =>void
Defined in: react/stream.tsx:453
Callback that is called when the stream is finished.
Parameters¶
state¶
ThreadState
\<StateType
>
Returns¶
void
onMetadataEvent()?¶
optional
onMetadataEvent: (data
) =>void
Defined in: react/stream.tsx:477
Callback that is called when a metadata event is received.
Parameters¶
data¶
# run_id¶
string
# thread_id¶
string
Returns¶
void
onThreadId()?¶
optional
onThreadId: (threadId
) =>void
Defined in: react/stream.tsx:487
Callback that is called when the thread ID is updated (ie when a new thread is created).
Parameters¶
threadId¶
string
Returns¶
void
onUpdateEvent()?¶
optional
onUpdateEvent: (data
) =>void
Defined in: react/stream.tsx:458
Callback that is called when an update event is received.
Parameters¶
data¶
Returns¶
void
threadId?¶
optional
threadId:null
|string
Defined in: react/stream.tsx:482
The ID of the thread to fetch history and current values from.
@langchain/langgraph-sdk / MessageMetadata
Type Alias: MessageMetadata\<StateType>¶
MessageMetadata\<
StateType
>:object
Defined in: react/stream.tsx:169
Type Parameters¶
• StateType extends Record
\<string
, unknown
>
Type declaration¶
branch¶
branch:
string
|undefined
The branch of the message.
branchOptions¶
branchOptions:
string
[] |undefined
The list of branches this message is part of. This is useful for displaying branching controls.
firstSeenState¶
firstSeenState:
ThreadState
\<StateType
> |undefined
The first thread state the message was seen in.
messageId¶
messageId:
string
The ID of the message used.