LangGraph.js API Reference
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    Function getApiKey

    • Get the API key from the environment. Precedence:

      1. explicit argument (if string)
      2. LANGGRAPH_API_KEY
      3. LANGSMITH_API_KEY
      4. LANGCHAIN_API_KEY

      Parameters

      • OptionalapiKey: null | string

        API key provided as an argument. If null, skips environment lookup. If undefined, tries environment.

      Returns undefined | string

      The API key if found, otherwise undefined

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