Convert request parameter to an HTTP header in WSO2 ESB

Say, you have a requirement to pass a request parameter (named key) which comes to an ESB proxy service, and that need to be passed to the backend service as an HTTP header (named APIKEY).

Request to ESB proxy service would be as follows.

      curl -X GET "http://localhost:8280/services/MyPTProxy?key=67876gGXjjsskIISL

In that case you can make use of xpath expression $url:[param_name]

In your in-sequence you can add a header mediator as follows to set the HTTP header with key request parameter

Java based CLI client to install WSO2 carbon features

WSO2 Products are based on WSO2 Carbon platform + set of features. (Carbon platform is also a collection of features) So, WSO2 products are released with set of pre-bundled features. For example, WSO2 Identity Server comes with System and User Identity Management feature, Entitlement Management features etc. API Manager comes with API management features, and features related to publishing and managing APIs etc. There can be requirement where the Key management features found in API Manager, need to be handled in the Identity Server itself, without going for a dedicated API Manager (Key manager) node. In such a scenario, you can install key management features into Identity Server.

Feature installation / management can be done via Management console UI [1] or using pom files [2]

In this blog post I'm presenting another way of installing features, that is via a Java based client.

This method can be used in situations where you have an automated setup to provision nodes with required features. You can find the code for that client in github.

[1] https://docs.wso2.com/display/Carbon420/Installing+Features+via+the+UI
[2] https://docs.wso2.com/display/Carbon420/Installing+Features+using+pom+Files