grafana/docs/sources/shared/alerts/example-custom-json-payload.md

labels	title
products cloud enterprise oss	Custom webhook example

{{ define "webhook.custom.payload" -}}
  {{ coll.Dict
  "receiver" .Receiver
  "status" .Status
  "alerts" (tmpl.Exec "webhook.custom.simple_alerts" .Alerts | data.JSON)
  "groupLabels" .GroupLabels
  "commonLabels" .CommonLabels
  "commonAnnotations" .CommonAnnotations
  "externalURL" .ExternalURL
  "version" "1"
  "orgId"  (index .Alerts 0).OrgID
  "truncatedAlerts"  .TruncatedAlerts
  "groupKey" .GroupKey
  "state"  (tmpl.Inline "{{ if eq .Status \"resolved\" }}ok{{ else }}alerting{{ end }}" . )
  "allVariables"  .Vars
  "title" (tmpl.Exec "default.title" . )
  "message" (tmpl.Exec "default.message" . )
  | data.ToJSONPretty " "}}
{{- end }}

{{- /* Embed json templates in other json templates. */ -}}
{{ define "webhook.custom.simple_alerts" -}}
  {{- $alerts := coll.Slice -}}
  {{- range . -}}
    {{ $alerts = coll.Append (coll.Dict
    "status" .Status
    "labels" .Labels
    "startsAt" .StartsAt
    "endsAt" .EndsAt
    ) $alerts}}
  {{- end -}}
  {{- $alerts | data.ToJSON -}}
{{- end }}