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Introduction

The tour introduces you to the buf CLI and the Buf Schema Registry (BSR). Along the way, you will enforce lint standards, detect breaking changes, generate code, create a module, manage a non-trivial dependency graph, and publish the module to the BSR for others to consume.

At any time, you can see the help for a command using --help:

$ buf --help$ buf build --help$ buf generate --help$ buf breaking --help$ buf lint --help$ buf mod ls-breaking-rules --help$ buf mod ls-lint-rules --help$ buf ls-files --help

Prerequisites#

Clone the Git repository#

First, clone the Git repository that contains the starter code for the PetStore service. From the development directory of your choice, run this command:

$ git clone https://github.com/bufbuild/buf-tour

You'll notice that the repository contains a start directory and a finish directory. During the tour you'll work on files in the start directory, and at the end they should match the files in the finish directory.

buf-tour/├── finish│   ├── buf.gen.yaml│   ├── buf.work.yaml│   ├── client│   │   └── main.go│   ├── gen│   │   └── proto│   │       └── go│   │           ├── payment│   │           │   └── v1alpha1│   │           │       └── payment.pb.go│   │           └── pet│   │               └── v1│   │                   ├── pet.pb.go│   │                   └── pet_grpc.pb.go│   ├── go.mod│   ├── go.sum│   ├── paymentapis│   │   ├── buf.lock│   │   ├── buf.yaml│   │   └── payment│   │       └── v1alpha1│   │           └── payment.proto│   ├── petapis│   │   ├── buf.lock│   │   ├── buf.md│   │   ├── buf.yaml│   │   └── pet│   │       └── v1│   │           └── pet.proto│   └── server│       └── main.go└── start    └── petapis        ├── google        │   └── type        │       └── datetime.proto        └── pet            └── v1                └── pet.proto

To begin, move into the start directory and continue to the next step:

$ cd buf-tour/start