Monday, September 21, 2015

[WSO2 ESB] How to read a value from xml file stored in a registry

You can do like this. Here we have below test.xml file stored in gov:/test.xml

Your synapse configuration should be like this. Here we use xapth to read the XML.

Your output log will look like this.

[2015-09-21 16:01:28,750]  INFO - LogMediator Book_Name = A Song of Ice and Fire 

Please comment below if you have any questions.

How to read a file from registry
How to read a registry property

Tuesday, September 8, 2015

[WSO2 ESB] How to URL Encode in WSO2 ESB

You can do this using either Script mediator or Class mediator. Here I'm discussing about how to use Script mediator.

In javascript, there are 2 ways to do URL encoding.

1) encodeURIComponent() - This should be used only to encode query parameters.

eg. name=John Conner

2) encodeURI() - This is used to encode an entire URL.

eg. Conner

If you have any questions, please comment below.

Tuesday, September 1, 2015

Tuesday, August 25, 2015

[WSO2 ESB] How to replace message body by a value of a property

Here is how to do it. This will replace message body by the value of "xmlfile" property.

Make sure you set type="OM" in property. Otherwise you will get below error.

"ERROR - EnrichMediator Invalid Object type to be inserted into message body"

Monday, August 24, 2015

[WSO2 ESB] How to read a file from registry and store in a property

Here is how to do it. This will load body.xml file from governance registry, and store in 'xmlfile' property.

Having 'registry' scope is the key here. Type is "OM" because it is an xml file.

How to read a file from registry

Tuesday, August 18, 2015

How to Split a JSON array in WSO2 ESB

Say you have this JSON array.

Now you want to split users, and call some backend service for each user. Here is how to do. (Here I'm logging each user details instead of calling a backend service.)

Output will look like this.

[2015-08-18 15:49:27,200]  INFO - LogMediator Name is = X, Age is = 10
[2015-08-18 15:49:27,204]  INFO - LogMediator Name is = Y, Age is = 12
[2015-08-18 15:49:27,205]  INFO - LogMediator Name is = Z, Age is = 15

Hope this will be helpful to someone.