SpeechAPI samples and docs do not show how to pass credentials

[redserpent7]

I am trying to do some test using the Google Speech API but from outside Google Cloud. In the older beta version I was able to specify a credentials file but now I am unable to find this option in the SpeechClient class.

How can I go about specifying the authentication keys using the Google Speech API Java library? I believe a sample code should be added to demonstrate this (both passing flat credentials and using a credentials file)

P.S I already asked the same exact question on SO but 4 days later and still no one answered

[frankyn]

Hi @redserpent7,

Thanks for reaching out!

You can authenticate using a service-account and setting the environment variable:
export GOOGLE_APPLICATION_CREDENTIALS=/path/to/service-account.json

Instructions on creating a service account and setting the environment variable can be found at:
https://cloud.google.com/docs/authentication/getting-started

[frankyn]

@redserpent7 did this help?

[redserpent7]

@frankyn thanks but I am really interested in setting the credentials path as a configuration variable. Namely I want to do the exact same thing described here but in Java

[frankyn]

@gguuss do you know how to set credentials programmatically?

[frankyn]

@redserpent7, I was able to set credentials using the following flow. I'd still like your input @gguuss when you have a moment.

CredentialsProvider credentialsProvider = FixedCredentialsProvider.create(ServiceAccountCredentials.fromStream(new FileInputStream("/path/to/service-account.json")));

ChannelProvider channelProvider = SpeechSettings.defaultChannelProviderBuilder().setCredentialsProvider(credentialsProvider).build();

SpeechSettings settings = SpeechSettings.defaultBuilder().setChannelProvider(channelProvider).build();

// Instantiates a client
SpeechClient speech = SpeechClient.create(settings);

[gguuss]

@frankyn -- you're doing it correctly, in the builder you just provide an API key or service account credential. For the samples, we are using the Application default credentials because it's simpler and more secure configuration.

[frankyn]

Thanks @gguuss! @redserpent7 let us know if this worked for you.

[redserpent7]

@frankyn Perfect thank you so much. And I hope you update the documentation to show that

[frankyn]

Great! Let us know if anything else comes up! We will update the documentation with this information soon.

[frankyn]

I posted this answer to your stackoverflow question as well.

[Solido]

Using Gax:grpc 0.21.1 I got .setCredentialsProvider marked as deprecated and my json auth that is working well when loaded with GoogleCredentials on gcloud storage throws
The Application Default Credentials are not available using the previous snippet with Speech Api.
Asking for GOOGLE_APPLICATION_CREDENTIALS and ignoring the conf.

[Charles92011]

@frankyn I'm trying your solution, but it doesn't work for me.
SpeechSettings.defaultChannelProviderBuilder is undefined
SpeechSettings.defaultBuilder is deprecated
and SpeechSettings.defaultBuilder,setChannelProvider is undefined.

Your solution is only a couple of months old, I can't image it's out of date.

[Charles92011]

@Solido I gleaned this from a comment inside of SpeechClient.Java, it works for me:

		FileInputStream credentialsStream = new FileInputStream(fileName);
		GoogleCredentials credentials = GoogleCredentials.fromStream(credentialsStream);
		FixedCredentialsProvider credentialsProvider = FixedCredentialsProvider.create(credentials);

		SpeechSettings speechSettings = 
				SpeechSettings.newBuilder()
					.setCredentialsProvider(credentialsProvider)
					.build();		

		SpeechClient speech = SpeechClient.create(speechSettings);