Parsing Outputs with LangChain

LLMs typically provide a string of text as an output. However, when creating an LLM-powered application, we might need a more structured and formatted output that provides us with concise information rather than reading the complete response.

Output parsers

Parsers are a tool that can help us in getting a structured output. If we don’t use parsers for our responses, then the expected output will be a plain text as a string.

LangChain provides us with different types of parsers. All parsers take either a string or a Message as the input. The output depends on the type of parser being used. Let’s explore them: