How Can I Programmatically Capture the Selected Branch Name from n8n's Text Classifier Node?

Below is some guidance based on how the Text Classifier node works in n8n:

1. Understanding the Output
   The Text Classifier node outputs the classification result (i.e. the category) as part of its JSON. You can use this result rather than having separate manual setups for every branch. In other words, the classification result itself is the name of the branch that was selected.

2. Using a Single Function (or Set) Node
   Instead of manually creating a separate Set node for each branch to capture the branch name, you can add one Function (or if you prefer, a single Set) node immediately after your Text Classifier node. In that node you can reference the output field (for example, something like “result” or another field name from your classifier's output) and assign it to a common property for later use. For example:

   JAVASCRIPTCopied
   // Function node code snippet
   items.forEach(item => {
     // Assuming the Text Classifier node puts the classification in `item.json.result`
     item.json.selectedBranch = item.json.result;
   });
   return items;

   This way, every item carries the name of the branch (the classification result) in the field selectedBranch without having to configure separate Set nodes in each branch.

3. Routing Using a Switch Node
   Your downstream Switch node can continue to use the classification result as its condition (using an expression referencing the same field). This ensures that not only does each branch work as needed, but you still “capture” or log the branch name in a consistent property.

4. Conclusion
   n8n does not currently provide a special built-in function that automates capturing the branch name without some configuration. However, by simply using a single Function or Set node to capture the classifier’s output value into a common field, you can streamline the process without extensive manual configuration for every one of your twenty-plus branches.

This approach leverages the classifier’s output and n8n’s flexible expression/system so you don’t need to set up a separate transformation for every branch.