n8n-io /

n8n

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Triggers start durable executions whose ready nodes run locally or on queue workers.

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Follow an event into graph execution and durable progress.

System map8 components · 8 connections
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n8n: a workflow graph enters the execution engine architectureStart with the editor graph, enter through a trigger, and follow scheduling, node execution, and persistence.trigger data and execu…workflow definition an…run data and start nodesinput items, parameter…run data, status, erro…WorkfloweditorWorkflow modelQueue workersExecutionengineWorkflowrunnerTrigger& webhookNodeimplementationsExecutionstore
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Terms, in plain English

ItemThe JSON or binary data unit passed between connected n8n nodes.

How to study this repo

  1. 1
    Read the graph model

    Trace how node connections are indexed for execution.

  2. 2
    Follow a webhook

    Track request data into the runner and first node input items.

  3. 3
    Compare runtime modes

    Find the split between local execution and queued worker dispatch.