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72 lines
1.8 KiB
Markdown
72 lines
1.8 KiB
Markdown
---
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id: dev-plugins
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title: "Developing Plugins"
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---
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There are many ways to extend `verdaccio`, the kind of plugins supported are:
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* [Authentication](plugin-auth.md)
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* [Middleware](plugin-middleware.md)
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* [Storage](plugin-storage.md)
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* Theme
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* Filter plugins
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> We recommend developing plugins using our [Typescript type definitions](https://github.com/verdaccio/monorepo/tree/master/core/types).
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# Other plugins
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The following plugins are valid and in process of incubation.
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## Theme Plugin {#theme-plugin}
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The plugin must return a function that returns a **string**. The string should be the absolute location of the root of your user interface.
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### API {#api}
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```javascript
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const path = require('path');
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module.exports = (...arguments) => {
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return path.join(__dirname, 'static');
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};
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```
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It is imporant that the name of the plugin **must start with `verdaccio-theme-` prefix**.
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### Theme Example {#theme-example}
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* [@verdaccio/ui-theme](https://github.com/verdaccio/ui): The default Verdaccio theme based in React.js.
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## Filter Plugin {#filter-plugin}
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Since [`4.1.0`](https://github.com/verdaccio/verdaccio/pull/1313)
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Filter plugins were introduced due a [request](https://github.com/verdaccio/verdaccio/issues/818) in order
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to be able to filter metadata from uplinks.
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More [info in the PR](https://github.com/verdaccio/verdaccio/pull/1161).
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```yaml
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filters:
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storage-filter-blackwhitelist:
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filter_file: /path/to/file
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```
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### API {#api-1}
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The method `filter_metadata` will allow you to filter metadata that comes from any uplink, it is `Promise` based
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and has to return the same metadata modified.
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> Do not remove properties from the metadata, try to do not mutate rather return a new object.
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```
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interface IPluginStorageFilter<T> extends IPlugin<T> {
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filter_metadata(packageInfo: Package): Promise<Package>;
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}
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```
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