[Home](./index.md) > [@firebase/auth](./auth.md) > [parseActionCodeURL](./auth.parseactioncodeurl.md) ## parseActionCodeURL() function Parses the email action link string and returns an [ActionCodeURL](./auth.actioncodeurl.md) if the link is valid, otherwise returns null. Signature: ```typescript export declare function parseActionCodeURL(link: string): ActionCodeURL | null; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | link | string | | Returns: [ActionCodeURL](./auth.actioncodeurl.md) \| null