simple-paypal-sdk/dist/esm/index.js

Simple PayPal SDK for Node.js.

import request from "lite-request";
import MemoryCache from "memory-cache";
import { HttpsProxyAgent } from "https-proxy-agent";
import { SocksProxyAgent } from "socks-proxy-agent";
const cache = new MemoryCache.Cache();
class PayPal {
  constructor(options = {}) {
    this.clientId = options.clientId || options.client_id;
    this.clientSecret = options.clientSecret || options.client_secret;
    this.environment = options.environment || "sandbox";
    if (!this.clientId || !this.clientSecret) {
      throw new TypeError("No clientId or clientSecret");
    }
    const proxy = options.proxy;
    if (proxy) {
      if (typeof proxy === "string") {
        if (proxy.startsWith("http://")) {
          this.agent = new HttpsProxyAgent(proxy);
        } else if (proxy.startsWith("socks://")) {
          this.agent = new SocksProxyAgent(proxy);
        }
      } else if (typeof proxy === "object") {
        if (!["http", "socks"].includes(proxy.protocol)) {
          throw new TypeError('proxy.protocol must be one of ["http", "socks"]');
        }
        this.agent = proxy.protocol === "http" ? new HttpsProxyAgent(
          proxy.username && proxy.password ? `http://${proxy.username}:${proxy.password}@${proxy.host}:${proxy.port}` : `http://${proxy.host}:${proxy.port}`
        ) : new SocksProxyAgent(
          proxy.username && proxy.password ? `socks://${proxy.username}:${proxy.password}@${proxy.host}:${proxy.port}` : `socks://${proxy.host}:${proxy.port}`
        );
      }
    }
  }
  _getURL(url) {
    if (url.startsWith("https://")) {
      return url;
    }
    url = url.replace(/^\//, "");
    return this.environment === "sandbox" ? `https://api.sandbox.paypal.com/${url}` : `https://api.paypal.com/${url}`;
  }
  async _authenticate() {
    const url = `${this._getURL("v1/oauth2/token")}`;
    const key = `paypal:${this.environment}:${this.clientId}:${this.clientSecret}:accessToken`;
    const accessToken = cache.get(key);
    if (accessToken) {
      return accessToken;
    }
    const response = await request({
      method: "POST",
      url,
      headers: {
        Authorization: `Basic ${Buffer.from(this.clientId + ":" + this.clientSecret).toString("base64")}`
      },
      form: {
        grant_type: "client_credentials"
      },
      json: true,
      agent: this.agent
    });
    const data = response.data;
    cache.put(key, data.access_token, data.expires_in * 1e3 - 3e4);
    return data.access_token;
  }
  async execute({ method = "GET", url, headers = {}, body }) {
    const accessToken = await this._authenticate();
    const payload = {
      method,
      url: this._getURL(url),
      headers: Object.assign({
        Authorization: `Bearer ${accessToken}`
      }, headers),
      json: true,
      agent: this.agent
    };
    if (body) {
      payload.body = body;
    }
    const response = await request(payload);
    return response.data;
  }
}
var index_default = PayPal;
export {
  index_default as default
};