- Introduction to WorkXpress
- Building Your Application
- Examples and Best Practices
- Technical Manual
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| + | ====== Read Cookie (Expression Function) ====== | ||
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| + | ===== Purpose ===== | ||
| + | The **Read Cookie** function (READ_COOKIE) reads a cookie from the browser that was set using a [[Action Type - Set Browser Cookie|Set Browser Cookie]] [[Action|action]]. It is commonly used to track a user to determine if he or she has accessed a page before. It is **not** advisable to use cookies for important security checks because it is easy for a cookie to be deleted, added, or copied which could lead to a security breach. | ||
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| + | {{ :read_cookie_initial.png?nolink |}} | ||
| + | ===== Parameters ===== | ||
| + | The **Read Cookie** function has one required parameter: | ||
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| + | ==== Cookie Name ==== | ||
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| + | Allowed Inputs: [[Field|field]] value or text string | ||
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| + | Either use the use the [[Query Builder]] to choose a field that contains the name of the cookie or use type a value to enter a text string that is the name of the cookie. | ||
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| + | ===== Output ===== | ||
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| + | The output of the **Read Cookie** function is a string that was previously set by the set browser cookie action. If the cookie does not exist then an empty string will be returned. | ||
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| + | ===== Example ===== | ||
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| + | The output of the **Read Cookie** function is based on the value set by the action. For example if a set browser cookie action set the value "Bobby" to the cookie titled "Nickname" then READ_COOKIE("Nickname") would return "Bobby". | ||
