'C library for gRPC

I have not found support of the C language on grpc.io. Are there any "unofficial" libraries supporting gRPC in C?

My whole project is in C. I'm seeing a few options:

rewrite in C++ (inefficient, just to support gRPC)
write module talking gRPC in C++ and mix with C (I guess this is doable, but quite ugly?)
find a C library implementing gRPC API etc.
write my own using the core library from grpc.io (have no idea, how difficult it's going to be)

c protocol-buffers grpc

Solution 1:^[1]

Unoffical library:

github.com/juniper/grpc-c "C implementation of gRPC layered on top of core library"

Related:

github.com/nanopb/nanopb "Nanopb is a small code-size Protocol Buffers implementation in ansi C. It is especially suitable for use in microcontrollers, but fits any memory restricted system."
github.com/protobuf-c/protobuf-c "Protocol Buffers implementation in C"
former discussion of the topic: stackoverflow.com/a/50955104/18980756

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	Franck