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# Bazel Support
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## Basic Usage
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The `grpc/grpc` repository's primary build system is Bazel. Rules are provided
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for C++, Python, and Objective-C. While C++ supports other build systems such as
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CMake, these rules are actually generated from the Bazel definitions.
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Projects built with Bazel may use the `grpc/grpc` repo not only to add a
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dependency on the library itself, but also to generate protobuf, stub, and
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servicer code. To do so, one must invoke the `grpc_deps` and `grpc_extra_deps`
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repository rules in their `WORKSPACE` file:
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```starlark
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workspace(name = "example_workspace")
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load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
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http_archive(
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name = "com_github_grpc_grpc",
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strip_prefix = "grpc-1.45.0",
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sha256 = "ec19657a677d49af59aa806ec299c070c882986c9fcc022b1c22c2a3caf01bcd"k
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urls = ["https://github.com/grpc/grpc/archive/refs/tags/v1.45.0.tar.gz"],
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)
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load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")
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grpc_deps()
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load("@com_github_grpc_grpc//bazel:grpc_extra_deps.bzl", "grpc_extra_deps")
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grpc_extra_deps()
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```
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## Supported Versions
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In general, gRPC supports building with the latest patch release of the two most
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recent LTS versions of Bazel. However individual releases may have a broader
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compatibility range. The currently supported versions are captured by the
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following list:
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- [`5.3.0`](https://github.com/bazelbuild/bazel/releases/tag/5.3.0)
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- [`4.2.2`](https://github.com/bazelbuild/bazel/releases/tag/4.2.2)
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- [`3.7.2`](https://github.com/bazelbuild/bazel/releases/tag/3.7.2)
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