add sendPayload file

lib/utils/sendPayload.ts

@@ -0,0 +1,77 @@
+import { Webhook } from "@prisma/client";
+import { compile } from "handlebars";
+
+import type { CalendarEvent } from "@calcom/types/Calendar";
+
+type ContentType = "application/json" | "application/x-www-form-urlencoded";
+
+function applyTemplate(template: string, data: CalendarEvent, contentType: ContentType) {
+  const compiled = compile(template)(data);
+  if (contentType === "application/json") {
+    return JSON.stringify(jsonParse(compiled));
+  }
+  return compiled;
+}
+
+function jsonParse(jsonString: string) {
+  try {
+    return JSON.parse(jsonString);
+  } catch (e) {
+    // don't do anything.
+  }
+  return false;
+}
+
+const sendPayload = async (
+  triggerEvent: string,
+  createdAt: string,
+  webhook: Pick<Webhook, "subscriberUrl" | "appId" | "payloadTemplate">,
+  data: CalendarEvent & {
+    metadata?: { [key: string]: string };
+    rescheduleUid?: string;
+    bookingId?: number;
+  }
+) => {
+  const { subscriberUrl, appId, payloadTemplate: template } = webhook;
+  if (!subscriberUrl || !data) {
+    throw new Error("Missing required elements to send webhook payload.");
+  }
+
+  const contentType =
+    !template || jsonParse(template) ? "application/json" : "application/x-www-form-urlencoded";
+
+  data.description = data.description || data.additionalNotes;
+
+  let body;
+
+  /* Zapier id is hardcoded in the DB, we send the raw data for this case  */
+  if (appId === "zapier") {
+    body = JSON.stringify(data);
+  } else if (template) {
+    body = applyTemplate(template, data, contentType);
+  } else {
+    body = JSON.stringify({
+      triggerEvent: triggerEvent,
+      createdAt: createdAt,
+      payload: data,
+    });
+  }
+
+  const response = await fetch(subscriberUrl, {
+    method: "POST",
+    headers: {
+      "Content-Type": contentType,
+    },
+    body,
+  });
+
+  const text = await response.text();
+
+  return {
+    ok: response.ok,
+    status: response.status,
+    message: text,
+  };
+};
+
+export default sendPayload;