> For the complete documentation index, see [llms.txt](https://matteo-gabriele.gitbook.io/vue-gtag/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://matteo-gabriele.gitbook.io/vue-gtag/plugin-hooks.md).

# Plugin hooks

The plugin offers hooks for nearly all aspects of its life cycle.

```typescript
export type Hooks = {
  /**
   * Triggered before a route tracking event is fired.
   * @param route - The current route being tracked.
   */
  "router:track:before"?: (route: Route) => void;

  /**
   * Triggered after a route tracking event is fired.
   * @param route - The current route that was tracked.
   */
  "router:track:after"?: (route: Route) => void;

  /**
   * Triggered before the initial configuration request is sent.
   */
  "config:init:before"?: () => void;

  /**
   * Triggered after the initial configuration request is sent.
   */
  "config:init:after"?: () => void;

  /**
   * Called when the gtag.js script successfully loads.
   */
  "script:loaded"?: () => void;

  /**
   * Called when the gtag.js script fails to load.
   * @param error - The error encountered during script loading.
   */
  "script:error"?: (error: unknown) => void;
};
```

For example, you want to set some events before the first configuration hit

```javascript
import { configure, customMap } from "vue-gtag";

configure({
  tagId: "GA_MEASUREMENT_ID",
  hooks: {
    "config:init:before": () => {
      customMap({ 'dimension1': 'test_cs1' })
    };
  }
})
```


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