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Get Values

Extracts text content or attribute values from multiple HTML elements using a CSS selector.

Common Properties​

  • Name - The custom name of the node.
  • Color - The custom color of the node.
  • Delay Before (sec) - Waits in seconds before executing the node.
  • Delay After (sec) - Waits in seconds after executing node.
  • Continue On Error - Automation will continue regardless of any error. The default value is false.
info

If the ContinueOnError property is true, no error is caught when the project is executed, even if a Catch node is used.

Inputs​

  • Elements - An array of HTML elements to process.
  • CSS Selector - The CSS selector pattern to match elements within each HTML element (optional).
  • Attribute Name - The name of the attribute to extract from each element (optional).

Options​

This node does not have any options.

Output​

  • Values - An array of strings containing the extracted text content or attribute values.

How It Works​

The Get Values node extracts either the text content or a specific attribute value from multiple HTML elements. When executed, the node:

  1. Retrieves the Elements array, CSS Selector, and Attribute Name input variables
  2. Iterates through each HTML element in the Elements array
  3. For each element:
    • Parses the HTML content into a goquery document
    • Applies the CSS selector if provided:
      • If CSS Selector is empty, uses the entire document
      • If CSS Selector is provided, finds elements matching the selector
    • Extracts the value based on the Attribute Name:
      • If Attribute Name is empty, extracts the text content of the selected element(s)
      • If Attribute Name is provided, extracts the value of that attribute from the selected element(s)
    • Collects the extracted value in an output array
  4. Sets the array of extracted values as the output variable

Requirements​

  • Valid HTML elements in the Elements array
  • Non-empty Elements input

Error Handling​

The node will return specific errors in the following cases:

  • Malformed HTML that cannot be parsed in any element - "Element parse error"

Usage Notes​

  • Processes each HTML element in the input array independently
  • If CSS Selector is empty, operates on the entire HTML document for each element
  • If CSS Selector is provided, operates on elements matching that selector within each HTML element
  • If Attribute Name is empty, extracts the text content of each element
  • If Attribute Name is provided, extracts the value of that specific attribute from each element
  • Returns an array of values with the same length as the input Elements array
  • For elements where the attribute doesn't exist or no text content is found, returns an empty string at that position
  • Useful for batch processing of multiple HTML elements to extract similar data points
  • Can extract common attributes like href, src, alt, title, class, id, etc.
  • Works with both simple and complex HTML structures
  • When extracting text content, removes HTML tags and returns only the text
  • When extracting attribute values, returns the exact value as it appears in the HTML
  • Maintains the order of values corresponding to the input elements