ainvoke() — langchain Function Reference

Architecture documentation for the ainvoke() function in router.py from the langchain codebase.

Function python LangChainCore Runnables called by 1

Entity Profile

LangChainCore→ Runnables→ ainvoke() — langchain Function Reference

Dependency Diagram

graph TD
  17bc6bca_2365_183e_a519_547d32deffed["ainvoke()"]
  65b9aaca_53f2_847d_9ab7_024fe53cbbd2["RouterRunnable"]
  17bc6bca_2365_183e_a519_547d32deffed -->|defined in| 65b9aaca_53f2_847d_9ab7_024fe53cbbd2
  a842484a_4f36_54a4_496a_003b4abe3e51["abatch()"]
  a842484a_4f36_54a4_496a_003b4abe3e51 -->|calls| 17bc6bca_2365_183e_a519_547d32deffed
  style 17bc6bca_2365_183e_a519_547d32deffed fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/router.py lines 120–133

    async def ainvoke(
        self,
        input: RouterInput,
        config: RunnableConfig | None = None,
        **kwargs: Any | None,
    ) -> Output:
        key = input["key"]
        actual_input = input["input"]
        if key not in self.runnables:
            msg = f"No runnable associated with key '{key}'"
            raise ValueError(msg)

        runnable = self.runnables[key]
        return await runnable.ainvoke(actual_input, config)