Rocket.Chat/app/api/server/v1/cloud.js

import { check } from 'meteor/check';

import { API } from '../api';
import { hasRole } from '../../../authorization';
import { saveRegistrationData } from '../../../cloud/server/functions/saveRegistrationData';
import { retrieveRegistrationStatus } from '../../../cloud/server/functions/retrieveRegistrationStatus';

API.v1.addRoute('cloud.manualRegister', { authRequired: true }, {
	post() {
		check(this.bodyParams, {
			cloudBlob: String,
		});

		if (!hasRole(this.userId, 'admin')) {
			return API.v1.unauthorized();
		}

		const registrationInfo = retrieveRegistrationStatus();

		if (registrationInfo.workspaceRegistered) {
			return API.v1.failure('Workspace is already registered');
		}

		const settingsData = JSON.parse(Buffer.from(this.bodyParams.cloudBlob, 'base64').toString());

		Promise.await(saveRegistrationData(settingsData));

		return API.v1.success();
	},
});