i wonder if dify do not allow boolean output in a code node

[xiaolan20020118-create]

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Content

error message:
1 validation error for CodeNodeData
default_value.6.type
Input should be 'string', 'number', 'object', 'array[number]', 'array[string]', 'array[object]' or 'array[file]'
[type=enum, input_value='boolean', input_type=str]

[dosubot[bot]]

Dify's backend does support boolean outputs in code nodes, as shown by the presence of boolean types in the allowed output types for code node validation logic (source). However, the validation error you encountered comes from the frontend or schema validation, which currently only allows string, number, object, array[number], array[string], array[object], or array[file] as output types—boolean is not included in this list (source). This means boolean outputs are blocked at the UI/schema level even though the backend could handle them.

A common workaround is to convert boolean values to a supported type, such as using 1/0 or "true"/"false" instead of True/False in your code node output. There are ongoing user requests to lift this restriction and allow all supported types, including boolean, in custom plugins and code nodes (source). For now, converting your boolean outputs to string or number is the most reliable approach.

To reply, just mention @dosu.

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[xiaolan20020118-create]

hey dosubot, @dosubot Your description is still a bit vague. Could you tell me in detail what exactly is restricting us from outputting Boolean-type variables when using Dify's code execution node? Our Dify version is 1.11.1.

[dosubot[bot]]

The restriction comes from schema validation for code node outputs: while both the backend and most frontend logic in Dify 1.11.1 support boolean output types (see the backend’s allowed types in code nodes and the frontend variable picker) source source, the schema that validates default values for outputs does not include 'boolean' as an allowed type. It only permits string, number, object, array[number], array[string], array[object], or array[file]. This means you get a validation error at configuration time if you try to output a boolean, even though the runtime would accept it.

This is a known mismatch and has been raised by the community. For now, the practical workaround is to convert boolean outputs to string or number types in your code node (for example, output "true"/"false" or 1/0 instead of true/false) source.

To reply, just mention @dosu.

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