nocobase/docs/en-US/api/resourcer/resource.md
2023-02-09 00:06:11 +08:00

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# Resource
Resource is used to define resource instance. Resource instances managed by resourcer can be accessed through HTTP requests.
## Constructor
To create resource instance. Normally it is not used directly, but replaced by the call of the `define()` interface of resourcer.
**Signature**
* `constructor(options: ResourceOptions, resourcer: Resourcer)`
**Parameter**
| Name | Type | Default | Description |
| --- | --- | --- | --- |
| `options.name` | `string` | - | Name of the resource, corresponding to the resource address in the route of the URL |
| `options.type` | `string` | `'single'` | Type of the resource, options are `'single'`, `'hasOne'`, `'hasMany'`, `'belongsTo'`, `'belongsToMany'` |
| `options.actions` | `Object` | - | List of actions that can be taken on the resource, see the example for details |
| `options.middlewares` | `MiddlewareType \| MiddlewareType[]` | - | List of middlewares for any operational access to the resource that is definingsee the example for details |
| `options.only` | `ActionName[]` | `[]` | Whitelist for global actions, only actions contained in the array (if `length > 0`) can be accessed |
| `options.except` | `ActionName[]` | `[]` | Blacklist for global actions, all actions except those contained in the array (if `length > 0`) can be accessed |
| `resourcer` | `Resourcer` | - | The resourcer instance |
**Example**
```ts
app.resourcer.define({
name: 'books',
actions: {
// Extended action
publish(ctx, next) {
ctx.body = 'ok';
}
},
middleware: [
// Extended middleware
async (ctx, next) => {
await next();
}
]
});
```
## Instance Members
### `options`
Configuration items for the current resource.
### `resourcer`
The resourcer instance to which the resource belongs.
### `middlewares`
The registered middlewares.
### `actions`
The registered mapping table of actions.
### `except`
Actions that are excluded.
## Instance Methods
### `getName()`
Get the name of the current resource.
**Signature**
* `getName(): string`
**Example**
```ts
const resource = app.resourcer.define({
name: 'books'
});
resource.getName(); // 'books'
```
### `getAction()`
Get action with the corresponding name.
**Signature**
* `getAction(name: string): Action`
**Parameter**
| Name | Type | Default | Description |
| --- | --- | --- | --- |
| `name` | `string` | - | Name of the action |
**Example**
```ts
const resource = app.resourcer.define({
name: 'books',
actions: {
publish(ctx, next) {
ctx.body = 'ok';
}
}
});
resource.getAction('publish'); // [Function: publish]
```