davidhcoe commented on PR #2831:
URL: https://github.com/apache/arrow-adbc/pull/2831#issuecomment-2887753333
I have tried using the grpc_proxy, https_proxy and http_proxy environment
variables, that hasn't worked.
I have tried for both net472 and net8.0:
```
private BigQueryReadClient
GetNet472BigQueryReadClient(GoogleCredential? credential)
{
// this results in Grpc.Core.RpcException:
'Status(StatusCode="Unimplemented",
// Detail="Bad gRPC response. HTTP status code: 404")'
BigQueryReadClientBuilder? readClientBuilder;
if (!string.IsNullOrEmpty(this.proxyAddress))
{
HttpClientHandler proxyHandler =
ProxyManager.GetProxyHttpClientHandler(this.proxyAddress!);
GrpcWebHandler grpcWebHandler = new
GrpcWebHandler(GrpcWebMode.GrpcWeb, proxyHandler);
HttpClient proxyGrpcWebClient = new
HttpClient(grpcWebHandler);
Grpc.Net.Client.GrpcChannelOptions options = new
Grpc.Net.Client.GrpcChannelOptions()
{
HttpClient = proxyGrpcWebClient,
Credentials = credential?.ToChannelCredentials()
};
GrpcChannel proxyChannel =
GrpcChannel.ForAddress("https://bigquerystorage.googleapis.com:443";, options);
CallInvoker ci = proxyChannel.CreateCallInvoker();
readClientBuilder = new BigQueryReadClientBuilder()
{
CallInvoker = ci
};
}
else
{
readClientBuilder = new BigQueryReadClientBuilder();
readClientBuilder.Credential = credential;
}
BigQueryReadClient bigQueryReadClient =
readClientBuilder.Build();
return bigQueryReadClient;
}
private BigQueryReadClient GetBigQueryReadClient(GoogleCredential?
credential)
{
// this also results in
// RpcException: Status(StatusCode="Unimplemented", Detail="Bad
gRPC response. HTTP status code: 404")
// when using .net 8
BigQueryReadClientBuilder? readClientBuilder;
if (!string.IsNullOrEmpty(this.proxyAddress))
{
HttpClientHandler proxyHandler =
ProxyManager.GetProxyHttpClientHandler(this.proxyAddress!);
GrpcWebHandler grpcWebHandler = new
GrpcWebHandler(GrpcWebMode.GrpcWeb, proxyHandler);
HttpClient proxyGrpcWebClient = new
HttpClient(grpcWebHandler);
GrpcNetClientAdapter grpcNetClientAdapter =
GrpcNetClientAdapter.Default.WithAdditionalOptions(options =>
{
options.HttpClient = proxyGrpcWebClient;
});
readClientBuilder = new BigQueryReadClientBuilder()
{
GrpcAdapter = grpcNetClientAdapter,
};
}
else
{
readClientBuilder = new BigQueryReadClientBuilder();
}
readClientBuilder.Credential = credential;
BigQueryReadClient bigQueryReadClient =
readClientBuilder.Build();
return bigQueryReadClient;
}
```
The only other option appears to be to use the storage v2 REST API, but then
the data comes back as JSON and not Arrow. So, I am not sure what other options
can be used for calling the storage backend with a proxy in the middle.
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