How to use Amazon Product Advertising API in C# .net Core?

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Amazon Product Advertising API is an API using which users can integrate search feature and show products from Amazon. Some days ago I wanted to integrate this API into my app. I went through Amazon’s PA-API documentation and I came to know that Amazon had not written code to consume this API in C#. If you are also facing the same issue then this article is for you. Let’s see how I have integrated Amazon PA-API in .net core?

Product Advertising API(PA API) implementation

Install the below package through Package Manager Console (You can search it in Nuget explorer also)

Install-Package Nager.AmazonProductAdvertising

You can search for Amazon products using PA API in 4 ways:

• Item Search (simple)
• Item Search (advanced)
• Item Lookup
• Multi-Item Lookup

1. Item Search (simple)

var authentication = new AmazonAuthentication("Your Access Key", "Your Secret Key");
var client = new AmazonProductAdvertisingClient(authentication, AmazonEndpoint.IN, "salman-21");
var result = await client.SearchItemsAsync("samsung tv");

• To get your Access Key and Secret Key click this 👉 link
• In the third line of code, you can see the search keyword “samsung tv”. Using this keyword Amazon will return product details of Samsung Tv’s

2. Item Search (advanced)

var authentication = new AmazonAuthentication("Your Access Key", "Your Secret Key");
var client = new AmazonProductAdvertisingClient(authentication, AmazonEndpoint.IN, "salman-21");
var searchRequest = new SearchRequest
  {
       Keywords = "samsung tv",
       ItemPage = 1,
       Resources = new []
       {
           "Images.Primary.Large",
           "ItemInfo.Title",
           "ItemInfo.Features",
           "Offers.Listings.Price",
       }
  };
var result = await client.SearchItemsAsync(searchRequest);

• Using advance search we can get the desired result which we want. On a single call to API, you will receive 10 product details if you want more products then make another separate call to API with 2, 3, 4, etc as ItemPage value.
• You can found all available Resources in the documentation 👉 link

3. Item Lookup

var authentication = new AmazonAuthentication("Your Access Key", "Your Secret Key");
var client = new AmazonProductAdvertisingClient(authentication, AmazonEndpoint.IN, "salman-21");
var result = await client.GetItemsAsync("B00BYPW00I");

• Along with words if an user wants to search specific products using ASIN then you can use the above code.

4. Multi-Item Lookup

var authentication = new AmazonAuthentication("Your Access Key", "Your Secret Key");
var client = new AmazonProductAdvertisingClient(authentication, AmazonEndpoint.IN, "salman-21");
var result = await client.GetItemsAsync(new string[] { "B00BYPW00I", "B004MKNBJG" });

• For getting multiple specific items, you can pass multiple ASIN(B00BYPW00I) string like the above code.

Note: Please check the AmazonEndpoint is correct for your Country.

• Amazon India use AmazonEndpoint.IN
• Amazon Spain use AmazonEndpoint.ES
• Amazon United Kingdom use AmazonEndpoint.UK

Official Package Repository: https://github.com/nager/Nager.AmazonProductAdvertising
Official Amazon Documentation: https://webservices.amazon.com/paapi5/documentation/

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