Microsoft - 'choose ... when ...' Statements to Control Execution Flows

'choose ... when ...' Statements to Control Execution Flows

Q

How to use 'choose ... when ..." policy statements to control execution flows?

✍: FYIcenter.com

A

If you want to control execution flows in Azure API management process, you can use the 'choose ... when ..." policy statement.

The "choose ... when ..." statement has the following syntax:

<choose>   
    <when condition="Boolean_expression">   
        ...
    </when>   
    <when condition="Boolean_expression">   
        ...
    </when>   
    <otherwise>   
        ...
    </otherwise>   
</choose>

For example,

<choose>  
	<when condition="@(context.Variables.GetValueOrDefault&lt;bool>("isMobile"))">  
		<set-query-parameter name="mobile" exists-action="override">  
			<value>true</value>  
		</set-query-parameter>  
	</when>  
	<otherwise>  
		<set-query-parameter name="mobile" exists-action="override">  
			<value>false</value>  
		</set-query-parameter>  
	</otherwise>  
</choose>

⇒ Policy to Modify Request and Response Body

⇐ Use Custom Variables in Policy Expressions

⇑ Using Azure API Policy

⇑⇑ Microsoft Azure API Management Tutorials

2018-01-19, 1070👍, 0💬

'choose ... when ...' Statements to Control Execution Flows
How to use 'choose ... when ..." policy statements to control execution flows? If you want to control execution flows in Azure API management process, you can use the 'choose ... when ..." policy statement. The "choose ... when ..." statement has the following syntax: <choose> <... 2018-01-19, 1071👍, 0💬

Use Custom Variables in Policy Expressions
How to use custom variables created by "set-variable" statements in policy expressions? If you want to access custom variables created by "set-variable" statements, you can use the IReadOnlyDictionary object through "context.Variables". For example, the following policy creates a custom variable dur... 2018-01-24, 788👍, 0💬

Policy to Modify Request and Response Body
Where to find tutorials on creating Policy to Modify Request and Response Body on Azure API Management Policy? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on creating Policy to Modify Request and Request Body on Azure API Management Policy. 'f... 2018-01-19, 701👍, 0💬

'find-and-replace' Policy Statement
How to use the "find-and-replace" Policy Statement for an Azure API service operation? The "find-and-replace" Policy Statement allows you to find and replace a sub string in the request body or response body. For example, the following inbound policy will replace "$id" by the template parameter "id"... 2018-01-19, 639👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.