Support for OAUTHBEARER mechanism

[prasam60]

• PHP version: 7.4
• librdkafka version:1.6.1
• php-rdkafka version: 5.0.0
• kafka version:

It seems like the Conf class is missing setter function for librdkafka configuration property oauthbearer_token_refresh_cb. This needs to be similar to how there are setter for other callback options. ex.
setRebalanceCb setStatsCb etc.

This is currently blocking me from using OAUTHBEARER SASL Mechanism. When I try to set this property directly, the below error is thrown
Property "oauthbearer_token_refresh_cb" must be set through dedicated .._set_..() function

[prasam60]

Hi Nick,
Sorry couldn't provide a PR since I haven't worked in C for more than a decade.
Do you have a rough estimate of the effort involved here? as well as when can this be expected to be released?

Thanks,
Pratik

[nick-zh]

@prasam60 effort should be small, but atm i do not have a lot of time for open source work, if this is of high importance to you, you can reach out privately

[pmmaran]

Guys,
Any update, would be great if you can build this feature 😉 at moment I am stuck without this

[arnaud-lb]

Implemented in #546 and #547