feat: Slack bot notifications (#676)

server/api/helpers/utils/send-email.js

@@ -25,7 +25,7 @@ module.exports = {
 
       sails.log.info('Email sent: %s', info.messageId);
     } catch (error) {
-      sails.log.error(error);
+      sails.log.error(error); // TODO: provide description text?
     }
   },
 };

server/api/helpers/utils/send-slack-message.js

@@ -0,0 +1,53 @@
+const POST_MESSAGE_API_URL = 'https://slack.com/api/chat.postMessage';
+
+module.exports = {
+  inputs: {
+    markdown: {
+      type: 'string',
+      required: true,
+    },
+  },
+
+  async fn(inputs) {
+    const headers = {
+      Authorization: `Bearer ${sails.config.custom.slackBotToken}`,
+      'Content-Type': 'application/json; charset=utf-8',
+    };
+
+    const body = {
+      blocks: [
+        {
+          type: 'section',
+          text: {
+            type: 'mrkdwn',
+            text: inputs.markdown,
+          },
+        },
+      ],
+      channel: sails.config.custom.slackChannelId,
+    };
+
+    let response;
+    try {
+      response = await fetch(POST_MESSAGE_API_URL, {
+        headers,
+        method: 'POST',
+        body: JSON.stringify(body),
+      });
+    } catch (error) {
+      sails.log.error(error); // TODO: provide description text?
+      return;
+    }
+
+    if (!response.ok) {
+      sails.log.error('Error sending to Slack: %s', response.error);
+      return;
+    }
+
+    const responseJson = await response.json();
+
+    if (!responseJson.ok) {
+      sails.log.error('Error sending to Slack: %s', responseJson.error);
+    }
+  },
+};