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* docs: Add NODE_EXTRA_CA_CERTS documentation for webhook addons Co-authored-by: Thomas Heartman <thomas@getunleash.ai>
64 lines
2.3 KiB
Markdown
64 lines
2.3 KiB
Markdown
---
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id: webhook
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title: Webhook
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---
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> This feature was introduced in _Unleash v3.11.0_.
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The Webhook Addon introduces a generic way to post messages from Unleash to third party services. Unleash allows you to define a webhook which listens changes in Unleash and post them to a third party services.
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The webhook will perform a single retry if the HTTP POST call fails (either a 50x or network error). Duplicate events may happen, and you should never assume events always comes in order.
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## Configuration {#configuration}
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#### Events {#events}
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You can choose to trigger updates for the following events (we might add more event types in the future):
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- feature-created
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- feature-updated (*)
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- feature-metadata-updated
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- feature-project-change
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- feature-archived
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- feature-revived
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- feature-strategy-update
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- feature-strategy-add
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- feature-strategy-remove
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- feature-stale-on
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- feature-stale-off
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- feature-environment-enabled
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- feature-environment-disabled
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> *) Deprecated, and will not be used after transition to environments in Unleash v4.3
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#### Parameters {#parameters}
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Unleash Webhook addon takes the following parameters.
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**Webhook URL** This is the only required property. If you are using a Slack Application you must also make sure your application is allowed to post the channel you want to post to.
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**Content-Type** Used to set the content-type header used when unleash performs an HTTP POST to the defined endpoint.
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**Body template** Used to override the body template used by Unleash when performing the HTTP POST. You may format you message using a [Mustache template](https://mustache.github.io). You will have the [Unleash event format](/api/admin/events) available in the rendering context.
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Example:
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```mustache
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{
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"event": "{{event.type}}",
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"createdBy": "{{event.createdBy}}",
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"featureToggle": "{{event.data.name}}",
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"timestamp": "{{event.data.createdAt}}"
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}
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```
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If you don't specify anything Unleash will use the [Unleash event format](/api/admin/events).
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#### Custom SSL certificates {#certificates}
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If your webhook endpoint uses a custom SSL certificate,
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you will need to start Unleash with the `NODE_EXTRA_CA_CERTS` environment variable set.
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It needs to point to your custom certificate file in pem format.
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For more information, see the [official Node.js documentation on setting extra certificate files](https://nodejs.org/api/cli.html#node_extra_ca_certsfile).
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