85 lines
2.1 KiB
TypeScript
85 lines
2.1 KiB
TypeScript
import { Webhook } from "@prisma/client";
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import { createHmac } from "crypto";
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import { compile } from "handlebars";
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import type { CalendarEvent } from "@calcom/types/Calendar";
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type ContentType = "application/json" | "application/x-www-form-urlencoded";
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function applyTemplate(template: string, data: CalendarEvent, contentType: ContentType) {
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const compiled = compile(template)(data);
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if (contentType === "application/json") {
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return JSON.stringify(jsonParse(compiled));
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}
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return compiled;
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}
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function jsonParse(jsonString: string) {
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try {
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return JSON.parse(jsonString);
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} catch (e) {
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// don't do anything.
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}
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return false;
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}
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const sendPayload = async (
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secretKey: string | null,
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triggerEvent: string,
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createdAt: string,
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webhook: Pick<Webhook, "subscriberUrl" | "appId" | "payloadTemplate">,
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data: CalendarEvent & {
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metadata?: { [key: string]: string };
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rescheduleUid?: string;
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bookingId?: number;
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}
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) => {
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const { subscriberUrl, appId, payloadTemplate: template } = webhook;
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if (!subscriberUrl || !data) {
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throw new Error("Missing required elements to send webhook payload.");
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}
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const contentType =
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!template || jsonParse(template) ? "application/json" : "application/x-www-form-urlencoded";
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data.description = data.description || data.additionalNotes;
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let body;
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/* Zapier id is hardcoded in the DB, we send the raw data for this case */
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if (appId === "zapier") {
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body = JSON.stringify(data);
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} else if (template) {
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body = applyTemplate(template, data, contentType);
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} else {
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body = JSON.stringify({
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triggerEvent: triggerEvent,
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createdAt: createdAt,
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payload: data,
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});
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}
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const secretSignature = secretKey
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? createHmac("sha256", secretKey).update(`${body}`).digest("hex")
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: "no-secret-provided";
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const response = await fetch(subscriberUrl, {
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method: "POST",
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headers: {
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"Content-Type": contentType,
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"X-Cal-Signature-256": secretSignature,
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},
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body,
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});
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const text = await response.text();
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return {
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ok: response.ok,
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status: response.status,
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message: text,
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};
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};
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export default sendPayload;
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