I have my request body as:
<tns:InputRequest xmlns:tns="http://tempuri.org/">
<tns:ID>ID_001</tns:ID>
<tns:ID>ID_002</tns:ID>
<tns:Description>Description for ID_001</tns:Description>
<tns:Description>Description for ID_002</tns:Description>
</tns:InputRequest>
and to get the value of ID and Description, i Have created property as:
<property xmlns:tns="http://tempuri.org/" name="ID" expression="//tns:ID" scope="default" type="STRING"/>
<property xmlns:tns="http://tempuri.org/" name="Description" expression="//tns:Description" scope="default" type="STRING"/>
But this gets me only one value. How can i make a property array so that i can store multiple values of ID and description in it and how to retreive from this array property?Looking forward to your reply.Thanks in advance
You should be able to extract those values using XPATH (//node/child::node()) and then set to property.
Below thread will help you to extract required nodes and set to property. You need to set the type as 'OM' to preserve XML as it is.
how to catch an array of nodes to a property
Related
I am using wso2 API manager 3.2 and in my API there are some headers and Query Parameter.
My API has some path variable in URL in this way
http://example.com/data/readsomeData/{entityId}/{someId}
for the path variable I use the following mediator
<property name="REST_URL_POSTFIX" scope="axis2" action="remove"/>
and it works fine.
also I change some of incoming header's name . For example incoming header is IN_HEADER , I translate it to OUT_HEADER ,my backend expects OUT_HEADER.
I also use this mediator
<property name="IN_HEADER" expression="get-property('transport', 'IN_HEADER')"/>
<property name="OUT_HEADER" expression="get-property('IN_HEADER')" scope="transport"/>
<property name="IN_HEADER" scope="transport" action="remove"/>
It also works fine too.
The given API describe above also has some optional query parameters (limit, max, min) . For example if I use limit=10 in my API, I have to get 10 records, with out limit I get just one record.
In WSO2 API Manager Publisher I defined the above query parameters as the other parameters.
The problem is when I use each of query parameter I get the result same as the way I do not use the query parameters. I get only one record.
I think the API manager does not pass the query parameters to backend.
I don't know this problem related to the mediator I use or not!
You can approach this in a few different ways, below examples should also work on 3.2.0.
Because you remove the REST_URL_POSTFIX the APIM also removes the query parameters.
So option 1:
You could do something similar to what you did for the other headers.
Grab the query parameters and add them as headers for further use. (the $url shorthand should also be available in 3.2.0 as far as I know - it grabs a query parameter by name.)
<property name="limit" expression="$url:limit" scope="transport"/>
<property name="min" expression="$url:min" scope="transport"/>
<property name="max" expression="$url:max" scope="transport"/>
Or you could grab the query parameters from your URL and put them back after removing the POSTFIX.
<property name="newUrlPostfix" expression="substring after($axis2:REST_URL_POSTFIX, '?')"/>
<property name="REST_URL_POSTFIX" scope="axis2" action="remove"/>
<property name="REST_URL_POSTFIX" scope="axis2" expression="concat('?', $ctx:newUrlPostfix"/>
It's possible to set a variable of mediator configuration field with a file? I just don't want to hard code the timeout field of a cache mediator, it is possible?
Thanks!
It seems that we are not able to pass an expression to timeout value. [1] only expects an integer to be provided not an expression.
[1]-https://github.com/wso2/carbon-mediation/blob/master/components/mediation-ui/mediators-ui/org.wso2.carbon.mediator.cache.ui/src/main/java/org/wso2/carbon/mediator/cache/ui/CacheMediator.java#L419
You can read a file stored in the registry like this, but I'm not sure if it's possible to change the cache timeout using a variable.
<property name="xmlFile" expression="get-property('registry','gov:/test.xml')" scope="default" type="OM"></property>
<log level="custom">
<property name="Book_Name" expression="$ctx:xmlFile//book"></property>
</log>
Ref: https://movingaheadblog.blogspot.com/2015/09/wso2-esb-how-to-read-value-from-xml.html
I need to cut body content in logs in WSO2 ESB. For this purpose, I have two parameters in registry: enabled (true or false) and limit (integer, for example: 1024).
For that, I have next expression in a property:
<property name="BODY_TO_LOG" expression="fn:substring(get-property('default','BODY'),0,getproperty('default','LIMIT'))" type="STRING" scope="default"/>
Note that BODY and LIMIT properties have been set previously.
My problem is it does not limit in logs, although the value of these properties are right.
Is it correct that form of limit the content of property?
Your expression should work. I have tested it and came to the nonsensical conclusion that when you declare your LIMIT property with type INTEGER, it doesn't log anything. When you declare your LIMIT property without a type - it works. If you declare your LIMIT property with a type STRING it also works.
So, basically your declaration of the LIMIT property should resemble the following:
<property name="LIMIT" type="STRING" value="1024" scope="default"/>
or
<property name="LIMIT" value="1024" scope="default"/>
I am using the inline javascript prototype feature in the WSO2 API manager and I'm trying to set different HTTP response statuses. Is this possible? If so how is it done?
So far I have tried setting the HTTP_SC property but this doesn't seem to have any effect.
mc.setProperty('HTTP_SC', "404");
I had the same requirement and after much exploring under the hood was able to find a workable solution.
The reason why setting the property:
mc.setProperty('HTTP_SC', "404");
didn't work is that the property needs to be set in the axis2 scope (as Abimaran said). mc.setProperty doesn't set it on that scope. Moreover, the MessageContext object doesn't provide a way to set the scope.
The 'Deploy as Prototype' action actually creates the API definition file by merging the specified in-line script into the a velocity template and storing the resulting API definition into a file.
Template: ./repository/resources/api_templates/prototype_template.xml
Output location: repository/deployment/server/synapse-configs/default/api/
The output file will have a name in the format:
provider--API Name-vVERSION.xml
where provider appears to be the username of the API creator.
What I did was add a filter to the template:
<filter source="boolean(get-property('HTTP_SC'))" regex="false">
<then>
<property name="HTTP_SC" value="200" scope="axis2"/>
</then>
<else>
<property name="HTTP_SC" expression="get-property('HTTP_SC')" scope="axis2"/>
</else>
</filter>
I added it immediately after a similar block (for handling CONTENT_TYPE) at the start of the inSequence element.
You need to add following properties before <send/> mediator
<header name="To" action="remove"/>
<property name="RESPONSE" value="true"/>
<property name="HTTP_SC" value="403" scope="axis2"/>
I am creating a proxy in which i am creating a property that gets data from the request body using x-path expression. The property i have written is:
<property xmlns:xs="http://www.openoandm.org/xml/ISBM/" name="ChannelURI" expression="//xs:ChannelURI" scope="default" type="STRING"/>
Now i have called a class mediator to which i am passing the value of this property. So in my class mediator, i have written
public String channelUriFromProp = String.valueOf(context.getProperty("ChannelURI"));
So now if i pass any string value to the ChannelURI property, I can get that value inside my class mediator string channelUriFromProp.
But the real problem is that when i pass null value in from request
<body>
<p:OpenPublicationSession xmlns:p="http://www.openoandm.org/xml/ISBM/">
<!--Exactly 1 occurrence-->
<xs:ChannelURI xmlns:xs="http://www.openoandm.org/xml/ISBM/"></xs:ChannelURI>
</p:OpenPublicationSession>
</body>
Then when i print the value of channelUriFromProp in class mediator code i get
<xs:ChannelURI xmlns:xs="http://www.openoandm.org/xml/ISBM/"/>
instead of getting null or empty. Whatam i doing wrong in here?
Thanks in advance.
Your xpath is wrong, it should be like this..
<property xmlns:xs="http://www.openoandm.org/xml/ISBM/" xmlns:p="XXXXXXXXX" name="ChannelURI" expression="//p:OpenPublicationSession/xs:ChannelURI"