LangChain ecosystem (LangSmith, LangGraph, LangServe) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the LangSmith client correctly.

LangChain

from langchain.[1] import LangSmithClient

Drag options to blanks, or click blank then click option'

Alangsmith

Blanggraph

Clangserve

Dcore

Attempts:

3 left

💡 Hint

Common Mistakes

Importing LangSmithClient from langgraph or langserve modules.

Using incorrect module names like 'core'.

The LangSmith client is imported from the langsmith module in LangChain.

2fill in blank

medium

Complete the code to create a LangGraph client instance.

LangChain

client = [1]()

Drag options to blanks, or click blank then click option'

ALangServeClient

BLangGraphClient

CLangSmithClient

DLangChainClient

Attempts:

3 left

💡 Hint

Common Mistakes

Using LangSmithClient or LangServeClient instead of LangGraphClient.

Trying to instantiate a non-existent LangChainClient.

The LangGraph client is created by calling LangGraphClient().

3fill in blank

hard

Fix the error in this LangServe server start code by filling the blank.

LangChain

from langchain.[1] import start_server

start_server()

Drag options to blanks, or click blank then click option'

Alanggraph

Blangsmith

Clangserve

Dcore

Attempts:

3 left

💡 Hint

Common Mistakes

Importing start_server from langsmith or langgraph modules.

Forgetting to import start_server before calling it.

The start_server function is imported from the langserve module to run the LangServe server.

4fill in blank

hard

Fill both blanks to create a LangSmith client and log a run.

LangChain

client = [1]()
run = client.[2](name="test_run")

Drag options to blanks, or click blank then click option'

ALangSmithClient

BLangGraphClient

Cstart_server

Dlog_run

Attempts:

3 left

💡 Hint

Common Mistakes

Using LangGraphClient instead of LangSmithClient.

Calling start_server instead of log_run on the client.

We create a LangSmithClient instance and call its log_run method to log a run.

5fill in blank

hard

Fill all three blanks to import LangGraphClient, create it, and visualize a graph.

LangChain

from langchain.[1] import [2]
client = [2]()
client.[3]()

Drag options to blanks, or click blank then click option'

Alanggraph

BLangGraphClient

Cvisualize

Dlangsmith

Attempts:

3 left

💡 Hint

Common Mistakes

Importing from langsmith or using LangSmithClient here.

Calling wrong methods like start_server instead of visualize.

We import LangGraphClient from langgraph, create an instance, and call its visualize method to show the graph.