@davidbolaji/termii-node/dist/esm/services/insights/EventService.js

Node.js SDK for Termii API – send SMS, voice, OTP, and manage messaging with ease.

import crypto from "crypto";
/**
 * Service for verifying and handling Termii webhook events
 */
export class EventService {
    constructor() { }
    /**
     * Verify that an incoming webhook event really came from Termii
     *
     * @param rawPayload - The raw request body (as a string)
     * @param signature - The "X-Termii-Signature" header from the request
     * @param secretKey - The Termii secretkey
     * @returns true if the signature is valid, false otherwise
     */
    verifySignature(rawPayload, signature, secretKey) {
        const computed = crypto
            .createHmac("sha512", secretKey)
            .update(rawPayload)
            .digest("hex");
        const computedBuf = Buffer.from(computed, "hex");
        const receivedBuf = Buffer.from(signature, "hex");
        if (computedBuf.length !== receivedBuf.length) {
            return false; // avoid RangeError
        }
        return crypto.timingSafeEqual(computedBuf, receivedBuf);
    }
    /**
     * Parse the incoming webhook event into a strongly typed object
     *
     * @param payload - Parsed JSON body of the webhook
     * @returns Expanded TermiiEvent with event details
     */
    parseEvent(payload) {
        return payload;
    }
}