Apaw

Amazon Product Advertising API 5.x Wrapper

Apaw is a dependency-free Node.js wrapper around version 5.x of the Amazon Product Advertising API (PAAPI). This module handles making the AWS Signature Version 4 signed HTTP requests for the PAAPI service. For more detailed information on the Amazon Product Advertising API and how to use it, please read Amazon's documentation.

Installation

- npm i @johnfoderaro/apaw

Example

``javascript
const Apaw = require('@johnfoderaro/apaw');

const apaw = Apaw({
host: 'webservices.amazon.com',
region: 'us-east-1',
key: 'AKIDEXAMPLE',
secret: 'wJalrXUtnFEMI/K7MDENG+bPxRfiCYEXAMPLEKEY',
});

(async () => {
try {
const results = await apaw.request('SearchItems', {
Keywords: 'Harry',
Marketplace: 'www.amazon.com',
PartnerTag: 'xyz-20',
PartnerType: 'Associates',
Resources: [
'Images.Primary.Small',
'ItemInfo.Title',
'Offers.Listings.Price',
],
SearchIndex: 'All',
});
console.log(results);
} catch (e) {
console.error(e);
}
})();
`

Usage

$3

The Apaw factory function returns an object with the method request. Below is a summary of the required arguments for both functions:

- parameters is an object that must include the following:

`javascript
{
host: String,
region: String,
key: String,
secret: String,
}
`

For information on host and region, please consult the PAAPI "Host and Region" documentation.

key represents "Access Key" and secret represents "Secret Key" PAAPI credentials. For information on these credentials, please consult the PAAPI.

- operation is a case sensitive string that must be a valid operation as outlined by the PAAPI documentation.

`javascript
'SearchItems'
`

- payload is an object that must contain valid request key/values as outlined by the PAAPI documentation.

`javascript
{
Keywords: 'Harry',
Marketplace: 'www.amazon.com',
PartnerTag: 'xyz-20',
PartnerType: 'Associates',
Resources: [
'Images.Primary.Small',
'ItemInfo.Title',
'Offers.Listings.Price',
],
SearchIndex: 'All',
}
`

For information on operation and how to properly create and format the payload object, please consult PAAPI "Operations" documentation.

The request method Rejects errors emitted by the Node https module or Resolves an object with the following shape:

`javascript
{
data: String,
headers: Object,
status: Number,
}
`

- data is the stringified HTTP response body
- headers is an object containing the response headers
- status` is a number representing the HTTP response status code

License

MIT