healthchecks/templates/integrations/slack_message.json

{% load hc_extras humanize %}
{
    "username": "healthchecks.io",
    "icon_url": "https://healthchecks.io/static/img/[email protected]",
    "attachments": [{
        {% if check.status == "up" %}
            "color": "good",
        {% else %}
            "color": "danger",
        {% endif %}

        "fallback": "The check \"{{ check.name_then_code|escapejs }}\" is {{ check.status|upper }}.",
        "mrkdwn_in": ["fields"],
        "text": "“{{ check.name_then_code|escapejs }}” is {{ check.status|upper }}.",
        "fields": [
            {
                "title": "Period",
                "value": "{{ check.timeout|hc_duration }}",
                "short": true
            },
            {
                "title": "Last Ping",
                {% if check.last_ping %}
                    "value": "{{ check.last_ping|naturaltime }}",
                {% else %}
                    "value": "Never",
                {% endif %}
                "short": true
            },
            {% if check.tags_list %}
            {
                "title": "Tags",
                "value": "{% for tag in check.tags_list %}`{{ tag|escapejs }}` {% endfor %}",
                "short": true
            },
            {% endif %}
            {
                "title": "Total Pings",
                "value": "{{ check.n_pings }}",
                "short": true
            }
        ]
    }]
}