rm-api-sdk/dist/signature.js

A NodeJS wrapper for some of the RESTful methods documented at doc.revenuemonster.my

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var crypto = require("crypto");
function sortObject(obj) {
    var sortedObj = {};
    Object.keys(obj)
        .sort()
        .forEach(function (key) {
        if (Array.isArray(obj[key])) {
            sortedObj[key] = obj[key];
        }
        else if (typeof obj[key] === 'object') {
            sortedObj[key] = sortObject(obj[key]);
        }
        else {
            sortedObj[key] = obj[key];
        }
    });
    return sortedObj;
}
exports.sortObject = sortObject;
var replaceSpecialCharacters = function (str) {
    return str
        .replace(/</g, '\\u003c')
        .replace(/>/g, '\\u003e')
        .replace(/&/g, '\\u0026');
};
function generateSignature(arg, privateKey) {
    var signature_data = '';
    if (arg.data !== null && typeof arg.data === 'object') {
        var signature_body = sortObject(arg.data);
        var json = JSON.stringify(signature_body);
        var escaped = replaceSpecialCharacters(json).trim();
        var signature = Buffer.from(escaped).toString('base64');
        signature_data = 'data=' + signature + '&';
    }
    var full_signature = signature_data
        + 'method=' + arg.method
        + '&nonceStr=' + arg.nonceStr
        + '&requestUrl=' + arg.requestUrl
        + '&signType=' + arg.signType
        + '&timestamp=' + arg.timestamp;
    return crypto
        .createSign('SHA256')
        .update(full_signature)
        .sign(privateKey, 'base64');
}
exports.generateSignature = generateSignature;
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