emotiv-ts/src/services/authentication.service.js

A Typescript library that wraps the Cortex API functionalities to communicate with Emotiv headsets

import { RequestAccess } from "../models/requests/authentication/request-access";
import { Authorize } from "../models/requests/authentication/authorize";
import { LicenseInfo } from "../models/requests/authentication/license-info";
import { Access } from "../models/responses/authentication/access";
import { Authorisation } from "../models/responses/authentication/authorisation";
import { License } from "../models/responses/authentication/license";
export class AuthenticationService {
    socket;
    static authorisation;
    constructor(socket) {
        this.socket = socket;
    }
    requestAccess(application) {
        return this.requestCortexAPI(this, new RequestAccess(application), data => new Access(data.result.accessGranted, data.result.message));
    }
    authorize(application) {
        return this.requestCortexAPI(this, new Authorize(application), data => {
            AuthenticationService.authorisation = new Authorisation(data.result.cortexToken, data.result.warning);
            return AuthenticationService.authorisation;
        });
    }
    getLicenseInfo() {
        return this.requestCortexAPI(this, new LicenseInfo(AuthenticationService.authorisation.token), data => new License(data.result.isOnline, data.result.license));
    }
    static getAuthToken() {
        return this.authorisation.token;
    }
    requestCortexAPI(context, request, onSuccess, onError) {
        return new Promise((resolve, reject) => {
            context.socket.send(JSON.stringify(request));
            context.socket.onmessage = (message) => {
                try {
                    let data = JSON.parse(message.data);
                    if (data['id'] == request.id) {
                        console.debug(`Cortex Response for the request ${request.method}:`, data);
                        resolve(onSuccess(data));
                    }
                }
                catch (error) {
                    console.error(error);
                    if (onError) {
                        onError(error);
                    }
                    reject(error);
                }
            };
        });
    }
}