How to retrieve JavaScript variable without using EV policy? Is this possible to use AM policy to access JS variable over NO target API??

Google Cloud Apigee
1

Is this possible to use Assign Message policy to access Javascript variable over NO target API??

2

Hi @Mir Mehran Khan, in JS policy we have context object. The context object has a global scope. It is available everywhere within the API proxy flow.

For example, the following JavaScript code example uses the context.flow property and calls the get/setVariable() methods oncontext.

if(context.flow=="PROXY_REQ_FLOW"){
var username = context.getVariable("request.formparam.user");
context.setVariable("USER.name", username);
}

The context.setVariable Sets the value for a custom variable. Now you can use USER.name flow variable in Assign Message policy.

3

Question was missing a lot of details ,but from what what i understood , you want to utilize values from javascript to generate response for a no target API using assign message policy.

You can directly access Javascript variable in assign message policy without EV policy using context object.

context is a global scope object available everywhere in API proxy flow.

so you can set variables in context from javascript and access them in assign message.

var era = context.getVariable("request.formparam.blade_runner");

if( era != 2049){
	context.setVariable("blade_runner_era", "2049");
}else{
	context.setVariable("blade_runner_era", era);
}

AssignMessage

<Set>
    <Payload contentType="application/json">
        {"Location":"Los Angeles", "Year":"{blade_runner_era}"}
    </Payload>
</Set>

Please take refrence of this for full documentation for variable access in Assign Message.

Hope this will help !!!