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The Build URL action assembles and safely serializes a URL. It resolves an optional path against the base URL, sets query parameters, and adds a fragment.

Inputs

Outputs

Example

Configure: The result is:
Parameter names and values are percent-encoded automatically. A parameter set here replaces an existing base-URL parameter with the same name.
URL path resolution follows browser rules. A relative path preserves the last base segment only when the base path ends in /; a path beginning with / replaces the base path from the host root.