mirror of https://github.com/tikv/client-go.git
97 lines
3.9 KiB
Markdown
97 lines
3.9 KiB
Markdown
# TiKV Go Client
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TiKV Go Client provides support for interacting with the [TiKV](https://github.com/tikv/tikv) server in the form of a Go library.
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[](https://pkg.go.dev/github.com/tikv/client-go/v2)
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[](https://github.com/tikv/client-go/actions/workflows/test.yml)
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[](https://github.com/tikv/client-go/actions/workflows/integration.yml)
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[](https://github.com/tikv/client-go/actions/workflows/compatibility.yml)
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## Package versions
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There are 2 major versions of the `client-go` package.
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- `v2` is the new stable and active version. This version was extracted from [pingcap/tidb](https://github.com/pingcap/tidb) and it includes new TiKV features like Follower Read, 1PC, Async Commit. The development of this version is on the `master` branch. The documentation for this version is below.
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- `v1` is the previous stable version and is only maintained for bug fixes. You can read the documentation [here](https://tikv.org/docs/4.0/reference/clients/go/).
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## Usage/Examples
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```bash
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go get github.com/tikv/client-go/v2@COMMIT_HASH_OR_TAG_VERSION
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```
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More examples can be found in [examples directory](https://github.com/tikv/client-go/tree/master/examples).
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## Contributing to client-go
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Pull Requests and issues are welcomed. Please check [CONTRIBUTING.md](./CONTRIBUTING.md).
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## Developing
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### Running Tests
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Note: All the following tests are included in the [CI](https://github.com/tikv/client-go/actions) and you can submit a Pull Request directly to hand over the work.
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To run unit tests, use following command
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```bash
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go test -v ./...
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```
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To run code linter, make sure `golangci-lint` is [installed](https://golangci-lint.run/usage/install/#local-installation). Then use following command
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```bash
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golangci-lint run
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```
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`integration_tests` can run against a real TiKV cluster. Here is an example:
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```bash
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./pd-server &
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sleep 5
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./tikv-server &
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sleep 10
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cd integration_tests
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go test -v --with-tikv=true --pd-addrs=127.0.0.1:2379
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```
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### Test with TiDB
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It is a common task to update client-go and then test it with TiDB.
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If you only need to test locally, you can directly use the modified client-go on the same host by replacing:
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```bash
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go mod edit -replace=github.com/tikv/client-go/v2=/path/to/client-go
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```
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If you want to push your TiDB code to GitHub for running CI or for code review, you need to change the client-go used by TiDB to your developing branch using the following steps:
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```bash
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go get -d github.com/GITHUB_USERNAME/client-go@DEV_BRANCH
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# Output:
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# go get: github.com/GITHUB_USERNAME/client-go/v2@none updating to
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# github.com/GITHUB_USERNAME/client-go/v2@v2.0.0-XXXXXXXXXXXXXX-XXXXXXXXXXXX: parsing go.mod:
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# module declares its path as: github.com/tikv/client-go/v2
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# but was required as: github.com/GITHUB_USERNAME/client-go/v2
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go mod edit -replace=github.com/tikv/client-go/v2=github.com/GITHUB_USERNAME/client-go/v2@v2.0.0-XXXXXXXXXXXXXX-XXXXXXXXXXXX
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go mod download github.com/tikv/client-go/v2
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```
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## Used By
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`client-go` is used by the following projects:
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- [TiDB](https://github.com/pingcap/tidb): TiDB is an open source distributed HTAP database compatible with the MySQL protocol
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- [BR](https://github.com/pingcap/br): A command-line tool for distributed backup and restoration of the TiDB cluster data
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- [TiCDC](https://github.com/pingcap/ticdc): Change data capture for TiDB
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- [go-ycsb](https://github.com/pingcap/go-ycsb): A Go port of Yahoo! Cloud Serving Benchmark (YCSB)
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## License
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[Apache License 2.0](http://www.apache.org/licenses/LICENSE-2.0)
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