Google Credentials environment variable Oculus Quest

Hi ! I'm currently working on Oculus Quest with Unity 2019.3.11. I would like to implement Speech reco from Google Cloud. For it, it is necessary to link JSON file to GOOGLE_APPLICATION_CREDENTIALS environment variable.
This is my current code to create my client :

Code (CSharp):

1.  
2. string full_path = string.Format("{0}/{1}", Application.streamingAssetsPath, "gcpcredentials.json");
3. WWW reader = new WWW(full_path);
4. while (!reader.isDone) { }
5.  
6. string json = reader.text;
7.  
8. var credential = GoogleCredential.FromJson(json);
9. var channel = new Grpc.Core.Channel(SpeechClient.DefaultEndpoint.ToString(), credential.ToChannelCredentials());
10.  
11.  SpeechClient speech = SpeechClient.Create(channel);
12.  

The following errors are throw :

System.InvalidOperationException: Error deserializing JSON credential data. ---> System.PlatformNotSupportedException: Operation is not supported on this platform.

05-15 14:41:20.275 23690 23704 I Unity : at Newtonsoft.Json.Utilities.DynamicReflectionDelegateFactory.CreateDynamicMethod (System.String name, System.Type returnType, System.Type[] parameterTypes, System.Type owner) [0x00018] in <07e3893119a945b29a35e81930b1c8ad>:0

05-15 14:41:20.275 23690 23704 I Unity : at Newtonsoft.Json.Utilities.DynamicReflectionDelegateFactory.CreateDefaultConstructor[T] (System.Type type) [0x00010] in <07e3893119a945b29a35e81930b1c8ad>:0

05-15 14:41:20.275 23690 23704 I Unity : at Newtonsoft.Json.Serialization.DefaultContractResolver.GetDefaultCreator (System.Type createdType) [0x00005] in <07e3893119a945b29a35e81930b1c8ad>:0

05-15 14:41:20.275 23690 23704 I Unity : at Newtonsoft.Json.Serialization.DefaultContractResolver.InitializeContract (Newtonsoft.Json.Serialization.JsonContract contract) [0x00093] in <07e3893119a945b29a35e81930b1c8ad>:0

05-15 14:41:20.275 23690 23704 I Unity : at Newtonsoft.Json.Serialization.DefaultContractResolver.CreateObjectContract (System.Type objectType) [0x00007] in <07

Does oculus quest is not compatible with Google Cloud API ? Or there is an other way to set environment variables ?

Thanks !

 

Hi I am having same problem and don't know how to fix,could you shared your solution .Thank you in advance

 

Hi there ! Did you find any solution ? I try to use Google Speech too with Oculus Quest and IL2CPP backend scripting but couldn't make it work.