126 lines
2.4 KiB
Markdown
126 lines
2.4 KiB
Markdown
# 编写第一个插件
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在开始前，需要先安装好 NocoBase：
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- [create-nocobase-app 安装](/welcome/getting-started/installation/create-nocobase-app)
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- [Git 源码安装](/welcome/getting-started/installation/git-clone)
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安装好 NocoBase 之后，我们就可以开始插件开发之旅了。
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## 创建插件
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首先，你可以通过 CLI 快速的创建一个空插件，命令如下：
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```bash
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yarn pm create hello
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```
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插件所在目录 `packages/plugins/hello`，插件目录结构为：
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```bash
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|- /hello
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|- /src
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|- /client # 插件客户端代码
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|- /server # 插件服务端代码
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|- client.d.ts
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|- client.js
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|- package.json # 插件包信息
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|- server.d.ts
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|- server.js
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```
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package.json 信息
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```json
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{
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"name": "@nocobase/plugin-hello",
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"version": "0.1.0",
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"main": "lib/server/index.js",
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"devDependencies": {
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"@nocobase/client": "0.8.0-alpha.1",
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"@nocobase/test": "0.8.0-alpha.1"
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}
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}
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```
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NocoBase 插件也是 NPM 包，插件名和 NPM 包名的对应规则为 `${PLUGIN_PACKAGE_PREFIX}-${pluginName}`。
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`PLUGIN_PACKAGE_PREFIX` 为插件包前缀，可以在 .env 里自定义，[点此查看 PLUGIN_PACKAGE_PREFIX 说明](/api/env#plugin_package_prefix)。
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## 编写插件
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查看 `packages/plugins/hello/src/server/plugin.ts` 文件，并修改为：
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```ts
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import { InstallOptions, Plugin } from '@nocobase/server';
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export class HelloPlugin extends Plugin {
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afterAdd() {}
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beforeLoad() {}
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async load() {
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this.db.collection({
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name: 'hello',
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fields: [
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{ type: 'string', name: 'name' }
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],
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});
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this.app.acl.allow('hello', '*');
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}
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async install(options?: InstallOptions) {}
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async afterEnable() {}
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async afterDisable() {}
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async remove() {}
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}
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export default HelloPlugin;
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```
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## 注册插件
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```bash
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yarn pm add hello
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```
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## 激活插件
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插件激活时，会自动创建刚才编辑插件配置的 hello 表。
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```bash
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yarn pm enable hello
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```
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## 启动应用
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```bash
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# for development
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yarn dev
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# for production
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yarn build
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yarn start
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```
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## 体验插件功能
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向插件的 hello 表里插入数据
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```bash
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curl --location --request POST 'http://localhost:13000/api/hello:create' \
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--header 'Content-Type: application/json' \
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--data-raw '{
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"name": "Hello world"
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}'
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```
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查看 hello 表数据
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```bash
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curl --location --request GET 'http://localhost:13000/api/hello:list'
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```
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