The index server shouldn't return null if no samples exist

[johnmcollier]

/kind bug

Which area this bug is related to?

/area registry

Bug Summary

The index server currently returns null if no samples are in the registry when the /index/sample endpoint is called:

johncollier@jcollier-mac ~ % curl https://devfile-registry-devfile-registry-redhat-production.apps.app-sre-prod-03.z5a2.p1.openshiftapps.com/index/sample
null

To Reproduce:

$ curl https://devfile-registry-devfile-registry-redhat-production.apps.app-sre-prod-03.z5a2.p1.openshiftapps.com/index/sample
null

Expected behavior

Either an empty array should be returned instead, or perhaps a more proper error message than null.

[Horiodino]

hi how about I work on this issue and get some idea about the project :)
it is possible to provide the files where to make changes!

[michael-valdron]

hi how about I work on this issue and get some idea about the project :) it is possible to provide the files where to make changes!

Hi @Horiodino,

Sounds good! We welcome your contribution to this issue!

Reviewing index/server/pkg/server/endpoint.go would be a good starting point for resolving this bug.

For more information refer to our README or reach out to us on our community channel (which I see you have joined) if you have any questions 😄

[michael-valdron]

Completed with devfile/registry-support#246