Add support for service account file

[ametelski]

See docs https://cloud.google.com/pubsub/docs/quickstart-client-libraries#before-you-begin

[rollno748]

Hello,

Rightnow, If you copy the key value pair to the respective fields, it should work.
Do you want the feature to parse the json directly and autopopulate values to its respective fields ?

Thanks

[ametelski]

Hi,

I plan to run this on our build server and we will be leveraging the environment variable GOOGLE_APPLICATION_CREDENTIALS to pass the credentials as outlined in step 7 of the docs. Looking at your code I think we just need a option to omit this line.

Jmeter-pubsub-sampler/src/main/java/com/di/jmeter/pubsub/config/PublisherConfig.java

Line 98 in 72c2219

.setCredentialsProvider(createCredentialsProviderUsingJson(getCredentials())).build();

[rollno748]

I don't think GOOGLE_APPLICATION_CREDENTIALS environment variables can be pulled out directly. The GOOGLE_APPLICATION_CREDENTIALS is something used by the applications during the startup to set it as environment variables.

Why can't you use a JSON (K,V) pairs for your test - > That should work properly
I see no reason to add that option, because JMeter runs on a separate machine - If you pass the credentials.json to config element, you should be able to send events to teh topic

Correct me if I am wrong