# Develop the first plugin

Before start, you need to install NocoBase:.

- [create-nocobase-app installation](/welcome/getting-started/installation/create-nocobase-app)
- [Git source installation](/welcome/getting-started/installation/git-clone)

Once NocoBase is installed, we can start our plugin development journey.

## Create a plugin

First, you can quickly create an empty plugin via the CLI with the following command.

```bash
yarn pm create @my-project/plugin-hello
```

The directory where the plugin located is  `packages/plugins/@my-project/plugin-hello` and the plugin directory structure is

```bash
|- /hello
  |- /src
    |- /client # plugin client code
    |- /server # plugin server code
  |- client.d.ts
  |- client.js
  |- package.json # plugin package information
  |- server.d.ts
  |- server.js
```

Visit the Plugin Manager to view the plugin you just added, the default address is http://localhost:13000/admin/pm/list/local/

<img src="https://nocobase.oss-cn-beijing.aliyuncs.com/b04d16851fc1bbc2796ecf8f9bc0c3f4.png" />

If the plugin is not shown in the plugin manager, you can add it manually with the `pm add` command.

```bash
yarn pm add @my-project/plugin-hello
```

## Code the plugin

Look at the `packages/plugins/@my-project/plugin-hello/src/server/plugin.ts` file and modify it to

```ts
import { InstallOptions, Plugin } from '@nocobase/server';

export class PluginHelloServer extends Plugin {
  afterAdd() {}

  beforeLoad() {}

  async load() {
    this.db.collection({
      name: 'hello',
      fields: [{ type: 'string', name: 'name' }],
    });
    this.app.acl.allow('hello', '*');
  }

  async install(options?: InstallOptions) {}

  async afterEnable() {}

  async afterDisable() {}

  async remove() {}
}

export default PluginHelloServer;
```

## Activate the plugin

**Operated by command**

```bash
yarn pm enable @my-project/plugin-hello
```

**Operated by UI**

Visit the Plugin Manager to view the plugin you just added and click enable.
The Plugin Manager page defaults to http://localhost:13000/admin/pm/list/local/

<img src="https://nocobase.oss-cn-beijing.aliyuncs.com/7b7df26a8ecc32bb1ebc3f99767ff9f9.png" />

Node: When the plugin is activated, the hello collection that you just configured is automatically created.

## Debug the Plugin

If the app is not started, you need to start the app first

```bash
# for development
yarn dev

# for production
yarn build
yarn start
```

Insert data into the hello collection of the plugin

```bash
curl --location --request POST 'http://localhost:13000/api/hello:create' \
--header 'Content-Type: application/json' \
--data-raw '{
    "name": "Hello world"
}'
```

View the data

```bash
curl --location --request GET 'http://localhost:13000/api/hello:list'
```

## Build the plugin

```bash
yarn build plugins/@my-project/plugin-hello --tar

# step-by-step
yarn build plugins/@my-project/plugin-hello
yarn nocobase tar plugins/@my-project/plugin-hello
```

The default saved path for the plugin tar is `storage/tar/@my-project/plugin-hello.tar.gz`

## Upload to other NocoBase applications

Only supported in v0.14 and above

<img src="https://nocobase.oss-cn-beijing.aliyuncs.com/8aa8a511aa8c1e87a8f7ee82cf8a1359.gif" />