Product Schema Download

[TechyChap]

Until recently I've been downloading the product schemas using the following code.

https://developer-docs.amazon.com/sp-api/docs/product-type-api-use-case-guide#step-2-retrieve-schema-documents

    Console.WriteLine($"Getting Schema for Product Type {productType}"); 
 
    var amazonConnection = CreateAmazonUKConnection(); 
 
    var definition = amazonConnection.ProductType.GetDefinitionsProductType( 
               new FikaAmazonAPI.Parameter.ProductTypes.GetDefinitionsProductTypeParameter() 
               { 
                   productType = productType, 
                   requirements = RequirementsEnum.LISTING, 
                   locale = FikaAmazonAPI.AmazonSpApiSDK.Models.ProductTypes.LocaleEnum.en_GB 
               }); 
 
    Dictionary<string,object> links = (Dictionary<string, object>)definition.Schema.Link; 
 
    var schemaURL = links["resource"].ToString(); 
 
    Console.WriteLine(schemaURL); 
 
    Console.WriteLine($"Downloading Schema"); 
 
    var httpClient = new HttpClient(); 
 
    using (var stream = await httpClient.GetStreamAsync(schemaURL)) 
    { 
        using (var fileStream = new FileStream($".\\{productType}schema.json", FileMode.Create)) 
        { 
            await stream.CopyToAsync(fileStream); 
        } 
    } 

But in the last month or so Amazon have restricted access to the schemaURLs so I believe we need to download via an authorised connection.

Was thinking I could also something like this to the ProductTypeService.

public async Task<object> GetSchemaProductType(GetDefinitionsProductTypeParameter parameter)
        {
            var def = await SearchDefinitionsProductTypesAsync(parameter);

            Dictionary<string, object> links = (Dictionary<string, object>)def.Schema.Link;

            var schemaURL = links["resource"].ToString();

            await CreateAuthorizedRequestAsync(schemaURL, RestSharp.Method.GET);
            return await ExecuteRequestAsync<object>(RateLimitType.ProductTypes_GetDefinitionsProductType);
        }

But I wasn't sure about the return type? Don't really think that putting a dependency on a paid package - https://www.newtonsoft.com/jsonschema is a good idea but the schema type is really complex.

Thoughts?

[TechyChap]

Just checking this again and the problem is not too do with the connection being authorised or not. They don't seem to want me to download in code...

[TechyChap]

Updated example for schema download. Just needed the headers setting

    Console.WriteLine($"Getting Schema for Product Type {productType}"); 
 
    var amazonConnection = CreateAmazonUKConnection(); 
 
    var definition = amazonConnection.ProductType.GetDefinitionsProductType( 
               new FikaAmazonAPI.Parameter.ProductTypes.GetDefinitionsProductTypeParameter() 
               { 
                   productType = productType, 
                   requirements = RequirementsEnum.LISTING, 
                   locale = FikaAmazonAPI.AmazonSpApiSDK.Models.ProductTypes.LocaleEnum.en_GB 
               }); 
 
    Dictionary<string,object> links = (Dictionary<string, object>)definition.Schema.Link; 
 
    var schemaURL = links["resource"].ToString(); 
 
    Console.WriteLine(schemaURL); 
 
    Console.WriteLine($"Downloading Schema"); 
 
    var httpClient = new HttpClient(); 
    httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
 
    using (var stream = await httpClient.GetStreamAsync(schemaURL)) 
    { 
        using (var fileStream = new FileStream($".\\{productType}schema.json", FileMode.Create)) 
        { 
            await stream.CopyToAsync(fileStream); 
        } 
    } 

[abuzuhri]

Do you think this should added to the nuget ?

[TechyChap]

Was just discussing this with a team member. I think having the capability to download the schema would be a useful addition to the library.