In grpc version 1.45.0 and later, “Eliminate gRPC insecure build” (https://github.com/grpc/grpc/pull/25586) is implemented.

This affects channel creation:

ext/channel.xs:

> if (creds == NULL) { 
>   ctx->wrapped = grpc_insecure_channel_create(target, &args, NULL); 
> } else { 
>   gpr_log(GPR_DEBUG, "Initialized secure channel"); 
>   ctx->wrapped = 
>       grpc_secure_channel_create(creds->wrapped, target, &args, NULL); 
> }
https://github.com/joyrex2001/grpc-perl/blob/6c7324502525cf44247f80c5989c8492e6c83b29/ext/channel.xs#L39-L45

The grpc_insecure_channel_create function is removed, and grpc_secure_channel_create becomes grpc_channel_create:

> /** Creates a secure channel using the passed-in credentials. Additional
>     channel level configuration MAY be provided by grpc_channel_args, though
>     the expectation is that most clients will want to simply pass NULL. The
>     user data in 'args' need only live through the invocation of this function.
>     However, if any args of the 'pointer' type are passed, then the referenced
>     vtable must be maintained by the caller until grpc_channel_destroy
>     terminates. See grpc_channel_args definition for more on this. */
> GRPCAPI grpc_channel* grpc_channel_create(const char* target,
>                                           grpc_channel_credentials* creds,
>                                           const grpc_channel_args* args);

I think it should still be possible to create an insecure channel by using the experimental API function grpc_insecure_credentials_create from grpc/grpc_security.h:

> /**
>  * EXPERIMENTAL API - Subject to change
>  *
>  * This method creates an insecure channel credentials object.
>  */
> GRPCAPI grpc_channel_credentials* grpc_insecure_credentials_create();

A COPR is available for testing at https://copr.fedorainfracloud.org/coprs/music/grpc/packages/.

I’m hoping to sort out this and the python-google-cloud-bigquery failure pretty soon so I can get grpc up to date in Rawhide.

I opened a report upstream at https://github.com/joyrex2001/grpc-perl/issues/23.