Conditional routing is happening, but final response is not populating using .js

Google Cloud Apigee
1

Hi ,

Requirement:I have created a proxy with no endpoint(Proxy endpoint) . Created two conditional flows and call backend based on condition.If response comes from backend, I need to populate using java script.

Right now the condition is successfully evaluated and the backend service is called using a ServiceCallout policy.

But the .js written to display final response is throwing this error: ‘Execution of JavaScript-1 failed with error: Javascript runtime error: “TypeError: Cannot set property “content” of undefined to “{“one”:“two”,“key”:“value”}”. (JavaScript-1.js:2)”’.I can see the response from servicecall out ,but not able to display it as final response

Here is the code details:

ProxyEndpoint:

<ProxyEndpoint name="default"> 
  <Description/> 
  <FaultRules/> 
  <PreFlow name="PreFlow"> 
    <Request/> 
    <Response/> 
  </PreFlow> 
  <PostFlow name="PostFlow"> 
    <Request/> 
    <Response/> 
  </PostFlow> 
  <Flows> 
    <Flow name="Flow-1"> 
      <Description/> 
      <Request> 
        <Step> 
          <Name>Service-Callout-1</Name> 
        </Step> 
        <Step> 
          <Name>Extract-Variables-1</Name> 
        </Step> 
        <Step> 
          <Name>JavaScript-1</Name> 
        </Step> 
      </Request> 
      <Response/> 
      <Condition>(proxy.pathsuffix MatchesPath "/First")</Condition> 
    </Flow> 
    <Flow name="Flow-2"> 
      <Description/> 
      <Request> 
        <Step> 
          <Name>Service-Callout-2</Name> 
        </Step>                 
        <Step> 
          <Name>JavaScript-2</Name> 
        </Step> 
      </Request> 
      <Response/> 
      <Condition>(proxy.pathsuffix MatchesPath "/Second")</Condition> 
    </Flow> 
  </Flows> 
  <HTTPProxyConnection> 
    <BasePath>/conditionalroutingwithstaticendpoint</BasePath> 
    <Properties/> 
    <VirtualHost>default</VirtualHost> 
    <VirtualHost>secure</VirtualHost> 
  </HTTPProxyConnection> 
  <RouteRule name="noroute"/> 
</ProxyEndpoint>

Service-Callout-1 :

<ServiceCallout async="false" continueOnError="false" enabled="true" name="Service-Callout-1"> 
  <DisplayName>Service Callout-1</DisplayName> 
  <Properties/> 
  <Request clearPayload="true" variable="myRequest"> 
    <IgnoreUnresolvedVariables>false</IgnoreUnresolvedVariables> 
  </Request> 
  <Response>calloutResponse</Response> 
  <HTTPTargetConnection> 
    <Properties/> 
    <URL>http://echo.jsontest.com/key/value/one/two</URL> 
  </HTTPTargetConnection> 
</ServiceCallout>

JavaScript-1 :

var originalResponse = JSON.parse(context.getVariable('calloutResponse.content'));
context.proxyResponse.content = JSON.stringify(originalResponse);

Please help me on javascript part .

1 Like
2

Hi @veeraraghavendra,

Since you are defining the javascript policy in the request flow, context.proxyResponse is undefined.

Try adding the javascript policy in the response flow. (works for me, cross-verified)

1 Like
3

Kindly use the code tab to populate the code snippet. It eases readability.

4

Many thanks ,I will try and let you know.

5

Keep us posted, thank you

6

Many thanks again ,It is working for me now.Thanks a lot