构建工作流

getWorkflowStaticData

英文官方文档 / build/code-in-n8n/cookbook/built-in-methods-and-variables-examples/getworkflowstaticdata.md / 固定提交 15824496

This gives access to the static workflow data.

You can save data directly in the workflow. This data should be small.

As an example: you can save a timestamp of the last item processed from an RSS feed or database. It will always return an object. Properties can then read, delete or set on that object. When the workflow execution succeeds, n8n checks automatically if the data has changed and saves it, if necessary.

There are two types of static data, global and node. Global static data is the same in the whole workflow. Every node in the workflow can access it. The node static data is unique to the node. Only the node that set it can retrieve it again.

Example with global data:

JavaScript

javascript
// Get the global workflow static data
const workflowStaticData = $getWorkflowStaticData('global');

// Access its data
const lastExecution = workflowStaticData.lastExecution;

// Update its data
workflowStaticData.lastExecution = new Date().getTime();

// Delete data
delete workflowStaticData.lastExecution;

Python

python
# Get the global workflow static data
workflowStaticData = _getWorkflowStaticData('global')

# Access its data
lastExecution = workflowStaticData.lastExecution

# Update its data
workflowStaticData.lastExecution = new Date().getTime()

# Delete data
delete workflowStaticData.lastExecution

Example with node data:

JavaScript

js
// Get the static data of the node
const nodeStaticData = $getWorkflowStaticData('node');

// Access its data
const lastExecution = nodeStaticData.lastExecution;

// Update its data
nodeStaticData.lastExecution = new Date().getTime();

// Delete data
delete nodeStaticData.lastExecution;

Python

python
# Get the static data of the node
nodeStaticData = _getWorkflowStaticData('node')

# Access its data
lastExecution = nodeStaticData.lastExecution

# Update its data
nodeStaticData.lastExecution = new Date().getTime()

# Delete data
delete nodeStaticData.lastExecution

Templates and examples

N8N 官方工作流示例：打开或下载工作流

Footnotes

  1. A trigger node is a special node responsible for executing the workflow in response to certain conditions. All production workflows need at least one trigger to determine when the workflow should run.

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