PUT and POST are not passing headers

Grafana k6 OSS Support
1

Because of our Tyk API Gateway configuration, I have to deconstruct the cookie that k6 stores, add quotes around it, and pass it back as a header. This works well in all cases… except this one.

Given this code:

response = http.get(`https://${tenant}.${environment}.${domain}/api/voice-settings-orchestration/phone-numbers/available`, {
        headers: {
            'Accept': '*/*',
            'Cookie': 'nextiva_sso="' + authToken + '"'
        },
        tags: { name: `${stepNum} - https://${tenant}.${environment}.${domain}/api/voice-settings-orchestration/phone-numbers/available` },
    });
    console.log(authToken)
    checkStatus(response, vuserID, iterNum, 200);
  


response = http.put(`https://${tenant}.${environment}.${domain}/api/voice-settings-orchestration/users/${profileId}/location/${locationId}`, {
       headers: {
           'Accept': '*/*',
           'Cookie': 'nextiva_sso="' + authToken + '"'
       },
       tags: { name: `${stepNum} - https://${tenant}.${environment}.${domain}/api/voice-settings-orchestration/users/<profileId>/location/<locationId>` },
   });
   console.log(authToken)
   checkStatus(response, vuserID, iterNum, 200);

The first one, the GET call, passes the cookie header; the second one, the PUT, does not. The second one also does not pass headers if I use POST.

This is bizarre - I know. Any help would be appreciated.

2

See the docs, params is the second parameter only in http.get(), it’s the third parameter in http.put(), http.post() and other shorthand methods, and actually the forth parameter in http.request(): k6/http

It’s a bit counter-intuitive, but unfortunately we can’t change this now, since it would be such a major breaking change… :disappointed: And since the second parameter of http.put() and http.post() is a body, and that can be an object, we can’t even show a warning or an error.

3

Hmm… Amazingly, I have written thousands of lines of code without noticing this. I’m not sure what this says about me.

So, if a PUT has no body payload (just url parameters), what is the right data to submit?

4

You can just use an empty string or null

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