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🎉 xk6-sql `v1.0.0` is here! | ||
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## Modularization | ||
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This release contains a major refactoring, the modularization of the previously monolithic `xk6-sql`. The database driver integrations have been extracted into separate k6 driver extensions. | ||
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Although modularization means a small API modification, it is basically a **breaking change!** | ||
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## How it Works | ||
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The SQL database driver integration is implemented in a separate k6 extension. The JavaScript API of this extension contains a single default export whose type is [JavaScript Symbol](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol) and is used to specify the database driver in the [xk6-sql API](https://sql.x.k6.io). | ||
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The use of the Symbol type is necessary in order to force the import of the driver module. | ||
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```JavaScript | ||
import sql from "k6/x/sql" | ||
import sqlite3 from "k6/x/sql/sqlite3" | ||
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const db = sql.open(sqlite3, "./test.db") | ||
``` | ||
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## Drivers | ||
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For easier discovery, the `xk6-sql-driver` topic is included in the database driver extensions repository. The [xk6-sql-driver GitHub topic search](https://github.com/topics/xk6-sql-driver) therefore lists the available driver extensions. | ||
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During the refactoring, the following k6 SQL database driver extensions were created from the database drivers previously embedded in the xk6-sql extension: | ||
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- https://github.com/grafana/xk6-sql-driver-mysql | ||
- https://github.com/grafana/xk6-sql-driver-postgres | ||
- https://github.com/grafana/xk6-sql-driver-sqlite3 | ||
- https://github.com/grafana/xk6-sql-driver-azuresql | ||
- https://github.com/grafana/xk6-sql-driver-sqlserver | ||
- https://github.com/grafana/xk6-sql-driver-clickhouse | ||
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The following template repository can be used to create a new driver extension: https://github.com/grafana/xk6-sql-driver-ramsql | ||
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## Solved problems | ||
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1. New SQL database type support (integration of new golang database/sql driver) does not require changes to the source code of `xk6-sql` and the release of `xk6-sql`. | ||
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2. Supporting additional database drivers does not increase the size of `k6`. Since the database drivers are implemented in a separate `k6` extension, it is sufficient to embed only the drivers you want to use. | ||
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3. The SQL database driver integration created by the community can be maintained by the community. Since database drivers are implemented as `k6` extensions, the community can create and maintain driver modules independently of Grafana. | ||
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4. Drivers may have different requirements. For example, cgo (`CGO_ENABLED`) should only be enabled if a driver needs it. (like `sqlite3`). | ||
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5. From the security perspective, the attack surface is smaller if fewer dependencies are embedded. | ||
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## Build | ||
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The [xk6](https://github.com/grafana/xk6) build tool can be used to build a k6 that will include **xk6-sql** extension **and database drivers**. | ||
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> [!IMPORTANT] | ||
> In the command line bellow, **xk6-sql-driver-ramsql** is just an example, it should be replaced with the database driver extension you want to use. | ||
> For example use `--with github.com/grafana/xk6-sql-driver-mysql` to access MySQL databases. | ||
```bash | ||
xk6 build --with github.com/grafana/xk6-sql@latest --with github.com/grafana/xk6-sql-driver-ramsql@latest | ||
``` | ||
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## API Compatibility | ||
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The `xk6-sql` JavaScript API changes in an incompatible way because of the driver parameter type becomes Symbol instead of String. | ||
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## API documentation | ||
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A TypeScript declaration file was created for the `xk6-sql` API, from which an [API documentation site](https://sql.x.k6.io) is generated. | ||
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## MySQL TLS support | ||
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MySQL TLS configuration support has been moved to the driver extension: https://github.com/grafana/xk6-sql-driver-mysql | ||
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It is important to note that the MySQL TLS configuration API will change in the future. |