JsonOutputParser for structured data in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the JsonOutputParser from langchain.

LangChain

from langchain.output_parsers import [1]

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AJsonOutputParser

BOutputParser

CJsonParser

DJsonDataParser

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'JsonParser' instead of 'JsonOutputParser'.

Importing from the wrong module.

The correct import is JsonOutputParser from langchain.output_parsers.

2fill in blank

medium

Complete the code to create a JsonOutputParser instance with a given schema.

LangChain

parser = JsonOutputParser([1]=schema)

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Aschema

Boutput_schema

Cjson_schema

Dschema_json

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'output_schema' or 'json_schema' instead of 'schema'.

Passing the schema as a positional argument.

The parameter name for the schema is schema.

3fill in blank

hard

Fix the error in the code to parse a JSON string using the parser.

LangChain

result = parser.[1](json_string)

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Aparse_json

Bparse_output

Cload

Dparse

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'load' which is for file reading.

Using 'parse_json' which does not exist.

The method to parse JSON output is parse.

4fill in blank

hard

Fill both blanks to define a JSON schema and create the parser.

LangChain

schema = [1](type="object", properties={"name": {"type": "string"}})
parser = JsonOutputParser([2]=schema)

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AJSONSchemaType

Bschema

Cjson_schema

Dschema_type

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong class name for schema.

Passing schema with wrong parameter name.

The schema is defined using JSONSchemaType and passed as schema to the parser.

5fill in blank

hard

Fill both blanks to parse JSON output and extract the 'name' field.

LangChain

parsed = parser.[1](json_output)
name = parsed"name"
print([2])

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Aparse

B[

Cname

D.get(

Attempts:

3 left

💡 Hint

Common Mistakes

Using dot notation instead of brackets for dictionary access.

Printing the wrong variable.

Use parse to parse, then access the 'name' key with brackets, and print the variable name.