Solved: invalid url - Page 2

gopaldurgoji · 03-22-2018 11:42 PM

Hi All, I have three URI's - http://test.apigee.net/v1/students/13,

http://test.apigee.net/v1/students/13/present and http://test.apigee.net/v1/students/13/absent where '13' is the roll number of a student.

Im extracting the roll number by using extract variable policy and validating whether its present or not.

If not I will be raising a fault.

Suppose, if the URI is http://test.apigee.net/v1/students//present , its considering 'present' itself as a roll number due to which Im not able to raise the fault.

How can I solve the above problem.

DChiesa

I think you need to introduce flow logic that rejects such invalid URLs.

You can do this with regular expression matches.

Like this:


  <Flows>

    <Flow name="student present-absent">
      <Request>
      </Request>
      <Response>
        <Step>
          <Name>AM-ResponsePresentAbsent</Name>
        </Step>
      </Response>
      <Condition>(proxy.pathsuffix ~~ "/students/[0-9]{1,5}/(present|absent)") and (request.verb = "GET")</Condition>
    </Flow>


    <Flow name="student">
      <Request>
      </Request>
      <Response>
        <Step>
          <Name>AM-ResponseStudent</Name>
        </Step>
      </Response>
      <Condition>(proxy.pathsuffix ~~ "/students/[0-9]{1,5}") and (request.verb = "GET")</Condition>
    </Flow>


    <Flow name="unknown request">
      <Request>
        <Step>
          <Name>RF-UnknownRequest</Name>
        </Step>
      </Request>
      <Response>
      </Response>
    </Flow>

For a full working example, see attached. apiproxy-regex-url-match.zip

Here's an example of me invoking that proxy. you can see that some URLs get rejected:

$ curl https://${ORG}-${ENV}.apigee.net/regex-url-match/students
{
  "error" : {
    "code" : 404.01,
    "message" : "that request was unknown; try a different request."
  }
}

$ curl https://${ORG}-${ENV}.apigee.net/regex-url-match/students/13
{
    "query" : "student"
}

$ curl https://${ORG}-${ENV}.apigee.net/regex-url-match/students/13/present
{
    "query" : "student present/absent"
}

$ curl https://${ORG}-${ENV}.apigee.net/regex-url-match/students/13/absent
{
    "query" : "student present/absent"
}

$ curl https://${ORG}-${ENV}.apigee.net/regex-url-match/students//absent
{
  "error" : {
    "code" : 404.01,
    "message" : "that request was unknown; try a different request."
  }
}

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