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Outgoing Webhook

Learn about outgoing webhooks and how events are triggered for your account.

What is the Outgoing Webhook Integration?

Outgoing Webhooks are requests made by PagerTree to a user-defined URL, the payload provided represents an alert. Webhooks allow you to extend PagerTree by performing any logic you wish.

This documentation is meant for webhooks that are outgoing from PagerTree. If you are looking for incoming webhooks, please refer to the incoming webhook documentation.

Create An Outgoing Webhook

  1. Create the integration by clicking the Outgoing Webhook logo.

  2. Provide the URL you want PagerTree to send webhooks to.

    Webhooks integrations
    Provide a URL where PagerTree should send webhooks to.

Data Structure

Outgoing webhooks will send data in a POST request in JSON format to your configured URL. Each request has the following format:

{
  "type": "<event_type>",
  "data": "<object>"
}

Where event_type is an applicable event and data is an alert.

Example Payload

{
  "type": "alert.resolved",
  "data": {
    "sid":"acc_H1fh_yx6z",
    "id":"alt_HJ3eGW-6M",
    "createdAt": "2018-04-27T00:02:50.419Z",
    "updatedAt": "2018-04-27T00:03:06.098Z",
    "meta": {
      "key": "value",
      ...
    },
    "tinyId": 1,
    "parent_id": "alt_xxxxxxxx",
    "thirdparty_id": "abc-123",
    "destination_ids": ["tem_xxxxxxxxx", "usr_yyyyyyyy", "rtr_zzzzzzzz"],
    "title":"CPU usage over 95%",
    "description":"PROD APP 1 CPU load over 95% for 5 minutes.",
    "type": "alert",
    "subtype": "alert",
    "status":"resolved",
    "urgency":"critical",
    "d_team_id":"tem_ByxQ3ukgTM",
    "d_user_id":"usr_r1mnuJg6z",
    "s_log_id": "log_xxxxxxxxx",

    "created":1524859374,
    "acknowledged":1524859483,
    "acknowledgedby": "usr_xxxxxxxx",
    "resolved":1524859487,
    "resolvedby": "usr_xxxxxxxx",
    "archived": 1524859488,
    "archivedby": "usr_xxxxxxxx",

    "livecall": "QU_XXXX",

    "source_id": "usr_r1mnuJg6z",

    "response_requested": false,
    "responses": ["Yes", "No", ...],
    "responses_recorded": {
      "usr_xxxxxxx": {
        "user_id": "usr_xxxxxxx",
        "value": 1,
        "recorded": 1524859488
      }
      ...
    },

    "tags": ["a", "tag"],
    "additional_data": [{
      "type": "text",
      "label": "Subject",
      "value": "Hello this is a subject"
    }, ...],

    "stakeholder_ids": ["stk_xxxxxxxxx", ...],
    "handoffs": [{
      "to": "usr_xxxxxxx",
      "from": "usr_yyyyyyy",
      "time": 1524859488,
      "acknowledged": 1524859488
    }, ...],
  }
}

Custom Format

Outgoing webhooks can also send data in a custom format. The request is still a POST request and must be in JSON format.

You can edit the format in the JSON Template section of the integration settings.

JSON template section.
Use a custom format by editing the JSON template section.

Templates support Handlebars substitution with the event and alert objects. You can use any handlebars-helpers to support any logic. Use JSON dot notation selection to access deeply nested data (ex: alert.d_user.name).

The data you have access to are the following properties:

{
  alert: {...}, // the PagerTree alert object
  event: {
    type: 'alert.rejected'
  },
}

Popular Templates

Plain JSON (using triple-stash operator)

Use the triple-stash {{{ }}} operator to bypass URL encoding.

{{{JSONstringify alert}}}

Slack (Incoming Webhook)

For the Slack Incoming Webhook App.

{
  "text": "<https://app.pagertree.com/#/alert/{{alert.id}}|{{alert.title}}> has been {{replace event.type "alert." ""}}"
}

Referenced Objects

{
  "text": "The alert has been acknowledged by {{alert.d_user.name}}."
}

Troubleshooting Templates

If for any reason you do not receive the webhook with a custom template, it is likely you have a formatting error. On the integration page, look at the integration’s logs.

  1. If you do not see a log, ensure the integration is enabled

  2. If you do see a log, view the log by clicking the log link. An error should be provided in the status field in the content section on the right hand side.

Linked Data

Linked data is a convenience option that embeds referenced objects. Linked data will send the following extra attributes.

Extra Attribute
Referenced By

d_team

d_team_id

d_user

d_user_id

source

source_id

s_log

s_log_id

If you are using a custom template you can access the linked data like so: {{alert.d_user.name}}.

Applicable Events

Currently PagerTree support 8 events:

  1. alert.created - fired exactly once, when the alert is created in the database.

  2. alert.open - Fired exactly once, when the alert transitions from queued -> open.

  3. alert.acknowledged - fired 0-N times, when the alert is acknowledged by a user.

  4. alert.rejected - can be fired 0-N times, when the alert is rejected by a user.

  5. alert.timeout - can be fired 0-M times, when an alert layer times out and moves to the next escalation layer.

  6. alert.resolved - fired 0-1 times, when the alert is resolved.

  7. alert.dropped - fired 0-1 times, when the alert is dropped.

  8. alert.handoff - fired 0-N times, when the alert is handed off.

Outgoing Rules

You can suppress outgoing webhooks or modify the payload using rules. This feature uses the same engine as the routers and is also expressed in YAML. You can use all the same operators as routers for matching conditions, but you can only use the setval and ignore actions. The root element should always be rules (an array), with each rule having a match (hash) and actions (array).

Rules Data

When routers are matching rules they are given access to data. Namely you are given access to the alert, integration, and event in context, and a special field always which is always true (especially useful for catch all rules).

{
  always: true,
  alert: {...}, // the alert object
  integration: {...}, // the integration object
  event: string // the event name (ex: alert.resolved)
}

Rules Examples

Suppress by Source ID

In our most basic example, we can suppress events when the alert is created by a specific integration.

# example rule showing how to suppress the outgoing webhook of any alert that is not 'critical'
rules:
  - match:
      alert.source_id: "int_xxxxxxx"
    actions:
     - type: ignore

Suppress by Urgency

In a second example, we suppress any event that is not “critical”.

# example rule showing how to suppress the outgoing webhook of any alert that is from a certain integration
rules:
  - match:
      alert.urgency:
        $ne: critical
    actions:
     - type: ignore

Set special values

In the next example, we are working with the Slack (Post to Channel) integration and we switch the channel PagerTree sends the notification to.

# Example rules for the "Slack (Post to Channel)" integration
# To switch the channel the message is sent to.
# Note this won't work with private channels
rules:
  - match:
      alert.d_team_id: "tem_xxx" # Apps Team
    actions:
    - type: setval
      map:
        channel: "C3QCH7S7C" # apps channel

Special Values

There is a special value webhook_url that if set using the setval operator will change the URL that the webhook is sent to. You can use this to dynamically change where webhooks are sent to.

# To switch the channel url the message is sent to.
rules:
  - match:
      alert.d_team_id: "tem_xxx" # Apps Team
    actions:
    - type: setval
      map:
        webhook_url: "https://hooks.slack.com/services/aaa/bbb/ccc" # apps channel webhook

  - match:
      alert.d_team_id: "tem_xxx" # Devops Team
    actions:
    - type: setval
      map:
        webhook_url: "https://hooks.slack.com/services/ddd/eee/fff" # devops channel webhook

  # else, send it to the default url on the webhook

Successful Responses And Limitations

  1. Responses in the 2xx family will be considered a success, any other response will be considered a failure.

  2. Webhooks retries will be attempted up to 14 times with exponential backoff.

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