amazon-modern-widgets
Version:
Amazon Modern Widgets for Amazon affiliate websites based on Amazon PAAPI v5
216 lines • 8.73 kB
JavaScript
"use strict";
/**
* Amazon Product API Class.
* ----------------------------------------------
* Amazon Modern Widgets (AMW).
*
* @author : Ludovic Toinel <ludovic@toinel.com>
* @src : https://github.com/ltoinel/amw
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Paapi = void 0;
const ConfigLog4j_1 = require("../utils/ConfigLog4j");
const config_1 = __importDefault(require("config"));
const amazonPaapi = __importStar(require("amazon-paapi"));
/**
* Paapi Wrapper using amazon-paapi library
*/
class Paapi {
/**
* Default constructor
*/
constructor() {
// Default resources to retrieve from Amazon
this.defaultResources = [
'Images.Primary.Large',
'ItemInfo.Title',
'Offers.Listings.Price',
'Offers.Listings.DeliveryInfo.IsPrimeEligible',
'Offers.Listings.Promotions'
];
// Debug the API calls
this.debug = config_1.default.get('Server.debug');
// Setup the logger
this.log = (0, ConfigLog4j_1.getLogger)("Paapi");
// Initialize common parameters for amazon-paapi
this.commonParameters = {
AccessKey: config_1.default.get('Amazon.accessKey'),
SecretKey: config_1.default.get('Amazon.secretKey'),
PartnerTag: config_1.default.get('Amazon.partnerTag'),
PartnerType: config_1.default.get('Amazon.partnerType'),
Marketplace: config_1.default.get('Amazon.marketplace')
};
this.condition = config_1.default.get('Amazon.condition');
this.log.info(`Amazon PAAPI initialized for marketplace: ${this.commonParameters.Marketplace}`);
}
/**
* Log success response for debugging
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
onSuccess(response) {
this.log.debug('API called successfully.');
this.log.debug('Complete Response: \n' + JSON.stringify(response, null, 1));
if (response.Errors !== undefined) {
this.log.debug('\nErrors:');
this.log.debug('Complete Error Response: ' + JSON.stringify(response.Errors, null, 1));
this.log.debug('Printing 1st Error:');
const error = response.Errors[0];
this.log.debug('Error Code: ' + error.Code);
this.log.debug('Error Message: ' + error.Message);
}
}
/**
* On Error Handler
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
onError(error) {
this.log.error('Error calling PA-API 5.0!');
this.log.error('Error details: ' + JSON.stringify(error, null, 1));
}
/**
* This function allows to search a product by its ID.
*
* @param {string} itemId The product ID to search.
*/
getItemApi(itemId) {
return __awaiter(this, void 0, void 0, function* () {
const requestParameters = {
ItemIds: [itemId],
ItemIdType: 'ASIN',
Condition: this.condition,
Resources: this.defaultResources
};
try {
// Call Amazon PAAPI using amazon-paapi library
const data = yield amazonPaapi.GetItems(this.commonParameters, requestParameters);
if (this.debug) {
this.onSuccess(data);
}
// Check if we have items in the response
if (!data.ItemsResult || !data.ItemsResult.Items || data.ItemsResult.Items.length === 0) {
this.log.warn(`No product found for: ${itemId}`);
return null;
}
// Build and return the product from the first item
const product = this.buildProduct(data.ItemsResult.Items[0]);
return product;
}
catch (error) {
this.onError(error);
return null;
}
});
}
/**
* This functions allows to search a product by a keyword.
*
* @param {string} keyword The keyword that describes the product to search.
*/
searchItemApi(keyword) {
return __awaiter(this, void 0, void 0, function* () {
const requestParameters = {
Keywords: keyword,
ItemCount: 1,
Condition: this.condition,
Resources: this.defaultResources
};
try {
// Call Amazon PAAPI using amazon-paapi library
const data = yield amazonPaapi.SearchItems(this.commonParameters, requestParameters);
if (this.debug) {
this.onSuccess(data);
}
// Check if we have search results
if (!data.SearchResult || !data.SearchResult.Items || data.SearchResult.Items.length === 0) {
this.log.warn(`No product found for: ${keyword}`);
return null;
}
// Build and return the product from the first search result
const product = this.buildProduct(data.SearchResult.Items[0]);
return product;
}
catch (error) {
this.onError(error);
return null;
}
});
}
/**
* Build a product from an item.
* Using any type due to Amazon PAAPI SDK not exporting item types
*
* @param item the item to build
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
buildProduct(item) {
const product = {
image: item.Images.Primary.Large.URL,
title: item.ItemInfo.Title.DisplayValue,
url: item.DetailPageURL,
prime: false,
price: -1,
timestamp: Date.now(),
savings: 0
};
// Get the first offer only
if (item.Offers && item.Offers.Listings && item.Offers.Listings.length > 0) {
product.price = item.Offers.Listings[0].Price.DisplayAmount;
product.prime = item.Offers.Listings[0].DeliveryInfo.IsPrimeEligible;
// If savings exists
if (item.Offers.Listings[0].Price.Savings) {
product.savings = item.Offers.Listings[0].Price.Savings.Percentage;
}
}
else {
this.log.warn('No offer found for : ' + item.ASIN);
}
return product;
}
}
exports.Paapi = Paapi;
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