mirror of
https://github.com/langchain-ai/langgraph.git
synced 2026-09-07 02:07:52 +02:00
@@ -38,6 +38,46 @@ Ready!
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We can now interact with the API server using the LangGraph SDK. First, we need to start our client, select our assistant (in this case a graph we called "agent", make sure to select the proper assistant you wish to test).
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You can either initialize by passing authentication or by setting an environment variable.
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#### Initialize with authentication
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=== "Python"
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```python
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from langgraph_sdk import get_client
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# only pass the url argument to get_client() if you changed the default port when calling langgraph up
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client = get_client(url=<DEPLOYMENT_URL>,api_key=<LANGCHAIN_API_KEY>)
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assistant_id = "agent"
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thread = await client.threads.create()
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```
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=== "Javascript"
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```js
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import { Client } from "@langchain/langgraph-sdk";
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// only set the apiUrl if you changed the default port when calling langgraph up
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const client = new Client({ apiUrl: <DEPLOYMENT_URL>, apiKey: <LANGCHAIN_API_KEY> });
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const assistantId = "agent"
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const thread = await client.threads.create();
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```
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=== "CURL"
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```bash
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curl --request POST \
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--url <DEPLOYMENT_URL>/threads \
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--header 'Content-Type: application/json'
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--header 'x-api-key: <LANGCHAIN_API_KEY>'
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```
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#### Initialize with environment variables
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If you have a `LANGCHAIN_API_KEY` set in your environment, you do not need to explicitly pass authentication to the client
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=== "Python"
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```python
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@@ -60,6 +100,14 @@ We can now interact with the API server using the LangGraph SDK. First, we need
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const thread = await client.threads.create();
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```
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=== "CURL"
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```bash
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curl --request POST \
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--url <DEPLOYMENT_URL>/threads \
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--header 'Content-Type: application/json'
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```
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Now we can invoke our graph to ensure it is working. Make sure to change the input to match the proper schema for your graph.
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=== "Python"
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@@ -96,4 +144,39 @@ Now we can invoke our graph to ensure it is working. Make sure to change the inp
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}
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```
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=== "CURL"
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```bash
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curl --request POST \
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--url <DEPLOYMENT_URL>/threads/<THREAD_ID>/runs/stream \
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--header 'Content-Type: application/json' \
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--data "{
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\"assistant_id\": \"agent\",
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\"input\": {\"messages\": [{\"role\": \"human\", \"content\": \"what's the weather in sf\"}]},
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\"stream_mode\": [
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\"events\"
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]
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}" | \
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sed 's/\r$//' | \
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awk '
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/^event:/ {
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if (data_content != "") {
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print data_content "\n"
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}
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sub(/^event: /, "Receiving event of type: ", $0)
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printf "%s...\n", $0
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data_content = ""
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}
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/^data:/ {
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sub(/^data: /, "", $0)
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data_content = $0
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}
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END {
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if (data_content != "") {
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print data_content "\n"
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}
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}
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'
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```
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If your graph works correctly, you should see your graph output displayed in the console. Of course, there are many more ways you might need to test your graph, for a full list of commands you can send with the SDK, see the [Python](https://langchain-ai.github.io/langgraph/cloud/reference/sdk/python_sdk_ref/) and [JS/TS](https://langchain-ai.github.io/langgraph/cloud/reference/sdk/js_ts_sdk_ref/) references.
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@@ -12,7 +12,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
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```python
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from langgraph_sdk import get_client
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client = get_client(url="<DEPLOYMENT_URL>")
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client = get_client(url=<DEPLOYMENT_URL>)
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assistant_id = "agent"
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thread = await client.threads.create()
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```
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@@ -22,7 +22,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
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```js
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import { Client } from "@langchain/langgraph-sdk";
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const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
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const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
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const assistantId = agent;
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const thread = await client.threads.create();
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```
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@@ -32,10 +32,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
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```bash
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curl --request POST \
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--url <DEPLOYMENT_URL>/threads \
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--header 'Content-Type: application/json' \
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--data '{
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"metadata": {}
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}'
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--header 'Content-Type: application/json'
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```
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## Find idle threads
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@@ -31,7 +31,7 @@ Then, let's import our required packages and instantiate our client, assistant,
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from langchain_core.messages import convert_to_messages
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from langgraph_sdk import get_client
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client = get_client(url="<DEPLOYMENT_URL>")
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client = get_client(url=<DEPLOYMENT_URL>)
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assistant_id = "agent"
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thread = await client.threads.create()
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```
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@@ -42,7 +42,7 @@ Then, let's import our required packages and instantiate our client, assistant,
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import { Client } from "@langchain/langgraph-sdk";
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const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
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const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
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const assistantId = "agent";
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const thread = await client.threads.create();
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```
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@@ -21,7 +21,7 @@ In this how-to we use a simple ReAct style hosted graph (you can see the full co
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```python
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from langgraph_sdk import get_client
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client = get_client(url="<DEPLOYMENT_URL>")
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client = get_client(url=<DEPLOYMENT_URL>)
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assistant_id = "agent"
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thread = await client.threads.create()
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```
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@@ -31,7 +31,7 @@ In this how-to we use a simple ReAct style hosted graph (you can see the full co
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```js
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import { Client } from "@langchain/langgraph-sdk";
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const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
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const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
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const assistantId = "agent"
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const thread = await client.threads.create();
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```
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@@ -41,10 +41,7 @@ In this how-to we use a simple ReAct style hosted graph (you can see the full co
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```bash
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curl --request POST \
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--url <DEPLOYMENT_URL>/threads \
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--header 'Content-Type: application/json' \
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--data '{
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"metadata": {}
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}'
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--header 'Content-Type: application/json'
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```
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## Adding a breakpoint
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@@ -17,7 +17,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
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```python
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from langgraph_sdk import get_client
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client = get_client(url="<DEPLOYMENT_URL>")
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client = get_client(url=<DEPLOYMENT_URL>)
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assistant_id = "agent"
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thread = await client.threads.create()
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```
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@@ -27,7 +27,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
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```js
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import { Client } from "@langchain/langgraph-sdk";
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const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
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const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
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const assistantId = "agent";
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const thread = await client.threads.create();
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```
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@@ -37,10 +37,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
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```bash
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curl --request POST \
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--url <DEPLOYMENT_URL>/threads \
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--header 'Content-Type: application/json' \
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--data '{
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"metadata": {}
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}'
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--header 'Content-Type: application/json'
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```
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## Editing state
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@@ -28,7 +28,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
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```python
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from langgraph_sdk import get_client
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client = get_client(url="<DEPLOYMENT_URL>")
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client = get_client(url=<DEPLOYMENT_URL>)
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assistant_id = "agent"
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thread = await client.threads.create()
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```
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||||
@@ -38,7 +38,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
|
||||
```js
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import { Client } from "@langchain/langgraph-sdk";
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|
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const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
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const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
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const assistantId = "agent";
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const thread = await client.threads.create();
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```
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@@ -14,7 +14,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
|
||||
|
||||
```python
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from langgraph_sdk import get_client
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client = get_client(url="<DEPLOYMENT_URL>")
|
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client = get_client(url=<DEPLOYMENT_URL>)
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assistant_id = "agent"
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thread = await client.threads.create()
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```
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@@ -24,7 +24,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
|
||||
```js
|
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import { Client } from "@langchain/langgraph-sdk";
|
||||
|
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const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
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const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
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const assistantId = agent;
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const thread = await client.threads.create();
|
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```
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@@ -34,10 +34,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
|
||||
```bash
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curl --request POST \
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--url <DEPLOYMENT_URL>/threads \
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--header 'Content-Type: application/json' \
|
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--data '{
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"metadata": {}
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}'
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--header 'Content-Type: application/json'
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```
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## Replay a state
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@@ -24,7 +24,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
|
||||
|
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```python
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from langgraph_sdk import get_client
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client = get_client(url="<DEPLOYMENT_URL>")
|
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client = get_client(url=<DEPLOYMENT_URL>)
|
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assistant_id = "agent"
|
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thread = await client.threads.create()
|
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```
|
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@@ -34,7 +34,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
|
||||
```js
|
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import { Client } from "@langchain/langgraph-sdk";
|
||||
|
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const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
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const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
const assistantId = "agent";
|
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const thread = await client.threads.create();
|
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```
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@@ -44,10 +44,7 @@ First, we need to setup our client so that we can communicate with our hosted gr
|
||||
```bash
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curl --request POST \
|
||||
--url <DEPLOYMENT_URL>/threads \
|
||||
--header 'Content-Type: application/json' \
|
||||
--data '{
|
||||
"metadata": {}
|
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}'
|
||||
--header 'Content-Type: application/json'
|
||||
```
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|
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## Waiting for user input
|
||||
|
||||
@@ -29,7 +29,7 @@ Now, let's import our required packages and instantiate our client, assistant, a
|
||||
from langchain_core.messages import convert_to_messages
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
assistant_id = "agent"
|
||||
thread = await client.threads.create()
|
||||
```
|
||||
@@ -39,7 +39,7 @@ Now, let's import our required packages and instantiate our client, assistant, a
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
const assistantId = "agent";
|
||||
const thread = await client.threads.create();
|
||||
```
|
||||
|
||||
@@ -28,7 +28,7 @@ Now, let's import our required packages and instantiate our client, assistant, a
|
||||
from langchain_core.messages import convert_to_messages
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
assistant_id = "agent"
|
||||
thread = await client.threads.create()
|
||||
```
|
||||
@@ -38,7 +38,7 @@ Now, let's import our required packages and instantiate our client, assistant, a
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
const assistantId = "agent";
|
||||
const thread = await client.threads.create();
|
||||
```
|
||||
|
||||
@@ -30,7 +30,7 @@ Now, let's import our required packages and instantiate our client, assistant, a
|
||||
from langchain_core.messages import convert_to_messages
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
assistant_id = "agent"
|
||||
thread = await client.threads.create()
|
||||
```
|
||||
@@ -40,7 +40,7 @@ Now, let's import our required packages and instantiate our client, assistant, a
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
const assistantId = "agent";
|
||||
const thread = await client.threads.create();
|
||||
```
|
||||
|
||||
@@ -9,7 +9,7 @@ First let's set up our client and thread:
|
||||
```python
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
# create thread
|
||||
thread = await client.threads.create()
|
||||
print(thread)
|
||||
@@ -20,7 +20,7 @@ First let's set up our client and thread:
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
// create thread
|
||||
const thread = await client.threads.create();
|
||||
console.log(thread)
|
||||
|
||||
@@ -6,7 +6,7 @@ This guide covers how to stream events from your graph (`stream_mode="events"`).
|
||||
```python
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
# create thread
|
||||
thread = await client.threads.create()
|
||||
print(thread)
|
||||
@@ -17,7 +17,7 @@ This guide covers how to stream events from your graph (`stream_mode="events"`).
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
// create thread
|
||||
const thread = await client.threads.create();
|
||||
console.log(thread)
|
||||
@@ -28,10 +28,7 @@ This guide covers how to stream events from your graph (`stream_mode="events"`).
|
||||
```bash
|
||||
curl --request POST \
|
||||
--url <DEPLOYMENT_URL>/threads \
|
||||
--header 'Content-Type: application/json' \
|
||||
--data '{
|
||||
"metadata": {}
|
||||
}'
|
||||
--header 'Content-Type: application/json'
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
@@ -41,7 +41,7 @@ First let's set up our client and thread:
|
||||
```python
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
# create thread
|
||||
thread = await client.threads.create()
|
||||
print(thread)
|
||||
@@ -52,7 +52,7 @@ First let's set up our client and thread:
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
// create thread
|
||||
const thread = await client.threads.create();
|
||||
console.log(thread)
|
||||
@@ -63,10 +63,7 @@ First let's set up our client and thread:
|
||||
```bash
|
||||
curl --request POST \
|
||||
--url <DEPLOYMENT_URL>/threads \
|
||||
--header 'Content-Type: application/json' \
|
||||
--data '{
|
||||
"metadata": {}
|
||||
}'
|
||||
--header 'Content-Type: application/json'
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
@@ -9,7 +9,7 @@ First let's set up our client and thread:
|
||||
```python
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
# create thread
|
||||
thread = await client.threads.create()
|
||||
print(thread)
|
||||
@@ -20,7 +20,7 @@ First let's set up our client and thread:
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
// create thread
|
||||
const thread = await client.threads.create();
|
||||
console.log(thread)
|
||||
@@ -31,10 +31,7 @@ First let's set up our client and thread:
|
||||
```bash
|
||||
curl --request POST \
|
||||
--url <DEPLOYMENT_URL>/threads \
|
||||
--header 'Content-Type: application/json' \
|
||||
--data '{
|
||||
"metadata": {}
|
||||
}'
|
||||
--header 'Content-Type: application/json'
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
@@ -16,7 +16,7 @@ First let's set up our client and thread:
|
||||
```python
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
# create thread
|
||||
thread = await client.threads.create()
|
||||
print(thread)
|
||||
@@ -27,7 +27,7 @@ First let's set up our client and thread:
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl:"<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
// create thread
|
||||
const thread = await client.threads.create();
|
||||
console.log(thread)
|
||||
@@ -38,10 +38,7 @@ First let's set up our client and thread:
|
||||
```bash
|
||||
curl --request POST \
|
||||
--url <DEPLOYMENT_URL>/threads \
|
||||
--header 'Content-Type: application/json' \
|
||||
--data '{
|
||||
"metadata": {}
|
||||
}'
|
||||
--header 'Content-Type: application/json'
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
@@ -16,7 +16,7 @@ First let's set up our client and thread:
|
||||
```python
|
||||
from langgraph_sdk import get_client
|
||||
|
||||
client = get_client(url="<DEPLOYMENT_URL>")
|
||||
client = get_client(url=<DEPLOYMENT_URL>)
|
||||
# create thread
|
||||
thread = await client.threads.create()
|
||||
print(thread)
|
||||
@@ -27,7 +27,7 @@ First let's set up our client and thread:
|
||||
```js
|
||||
import { Client } from "@langchain/langgraph-sdk";
|
||||
|
||||
const client = new Client({ apiUrl: "<DEPLOYMENT_URL>" });
|
||||
const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
|
||||
// create thread
|
||||
const thread = await client.threads.create();
|
||||
console.log(thread)
|
||||
@@ -38,10 +38,7 @@ First let's set up our client and thread:
|
||||
```bash
|
||||
curl --request POST \
|
||||
--url <DEPLOYMENT_URL>/threads \
|
||||
--header 'Content-Type: application/json' \
|
||||
--data '{
|
||||
"metadata": {}
|
||||
}'
|
||||
--header 'Content-Type: application/json'
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
Reference in New Issue
Block a user