How do I add conditional flow in apigee with else condition?

[asaischintala]

I have multiple conditional flows based in the proxy path suffix.

Example

/cats

/dogs

/elephants

I want to Raise Fault of 404 resource not found if none of them are matched.

How can I achieve this?

@dchiesa1 

Please advise.

[dchiesa1 · Accepted solution]

My standard practice is to have a "default" conditional flow that has no condition.  It will execute if none of the other conditions match.  Like this

  <Flows>

    <Flow name="flow1">
      <Request>
        <Step>...</Step>
        <Step>...</Step>
        <Step>...</Step>
      </Request>
      <Response>
        <Step>...</Step>
      </Response>
      <Condition>(proxy.pathsuffix MatchesPath "/t1") and (request.verb = "POST")</Condition>
    </Flow>

    <!-- other conditional flows here -->
    <!-- each should have a non-empty Condition element  -->

    <Flow name="unknown request">
      <!-- no Condition. This flow gets executed if none of the above match -->
      <Request>
        <Step>
          <Name>RF-Unknown-Request</Name>
        </Step>
      </Request>
      <Response>
      </Response>
    </Flow>
</Flows>

[hak121]

Use Raise Fault policy in Pre-flow with the condition:

<Condition>proxy.pathsuffix is Null || (!(proxy.pathsuffix MatchesPath "/cats") AND !(proxy.pathsuffix MatchesPath "/dogs") AND !(proxy.pathsuffix MatchesPath "/elephants"))</Condition>

<Name>RF-UnknownResource</Name>

[dchiesa1]

Yes, this is a different way to do things. Keep in mind that in this case you're checking only the pathsuffix, and not the verb.