gerencianet/gn-api-sdk-node

const sdkPackage = require('../package.json')
const axios = require('axios')

class Auth {
    constructor(options, constants) {
        this.constants = constants
        this.clientId = options.client_id
        this.clientSecret = options.client_secret
        this.baseUrl = options.baseUrl
        this.agent = options.agent
        this.authRoute = options.authRoute
    }
    async getAccessToken() {
        let postParams
        if (this.constants.APIS.DEFAULT.URL.PRODUCTION == this.baseUrl || this.constants.APIS.DEFAULT.URL.SANDBOX == this.baseUrl) {
            postParams = {
                method: 'POST',
                url: this.baseUrl + this.constants.APIS.DEFAULT.ENDPOINTS.authorize.route,
                headers: {
                    'api-sdk': 'node-' + sdkPackage.version,
                },
                data: {
                    grant_type: 'client_credentials',
                },
                auth: {
                    username: this.clientId,
                    password: this.clientSecret,
                },
            }
        } else {
            let data_credentials = this.clientId + ':' + this.clientSecret
            let auth = Buffer.from(data_credentials).toString('base64')

            postParams = {
                method: 'POST',
                url: this.baseUrl + this.authRoute.route,
                headers: {
                    Authorization: 'Basic ' + auth,
                    'Content-Type': 'application/json',
                    'api-sdk': 'node-' + sdkPackage.version,
                },
                httpsAgent: this.agent,
                data: {
                    grant_type: 'client_credentials',
                },
            }
        }

        return axios(postParams)
            .then((response) => {
                return response.data
            })
            .catch((error) => {
                throw error.response.data
            })
    }
}

module.exports = Auth