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50 lines
1.5 KiB
Markdown
50 lines
1.5 KiB
Markdown
# Adding custom plugins
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Serverless is extendable through plugins. Plugins can provide e.g. new CLI commands or hook into existing plugins
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to extend their functionality.
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Serverless provides [core plugins](core-plugins.md) out of the box but what if you want to add a 3rd party plugin?
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## Installing and adding a plugin
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Custom plugins are added on a per service base.
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At first we need to install the corresponding plugin in the services root directory with the help of npm:
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`npm install custom-serverless-plugin --save`.
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## Adding it to the service
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Next up we need to tell Serverless that we want to use the plugin inside our service. We do this by adding the name
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of the plugin to the `plugins` section in the `serverless.yaml` file:
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```yaml
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plugins:
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- custom-serverless-plugin
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```
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Plugins might want to add extra information which should be accessible for Serverless. The `custom` section in the
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`serverless.yaml` file is the place where you can add necessary configurations for your plugins (the plugins
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author / documentation will tell you if you need to add anything there):
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```yaml
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plugins:
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- custom-serverless-plugin
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custom:
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customkey: customvalue
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```
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## Load order
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Keep in mind that the order in which you define the plugins matter! At first Serverless loads all the [core
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plugins](core-plugins.md) and then the custom plugins in the order you've defined them.
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```yaml
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plugins:
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- plugin1
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- plugin2
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```
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In this case `plugin1` is loaded before `plugin2`.
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