Question concerning REST API functionality

Radzen Blazor Studio
1

I have several API functions which pass a request body in the call. I created it and then used the Send button to Access the API Call. It returns an Unsupported Media Error: {
"type": "RFC 9110 - HTTP Semantics",
"title": "Unsupported Media Type",
"status": 415,
"traceId": "00-7bb533678789a75a92db56cae2121947-8755b18c76644962-00"
}. I have never seen this error before. When I use POSTMAN to send the request it returns successfully. Any Ideas as to why this is so?

2

How? What is the expected body and what did you provide?

3

This is what your Code Generator Created:
partial void OnPostUspsSearchDomesticBaseRates(HttpRequestMessage request);
partial void OnPostUspsSearchDomesticBaseRatesResponse(HttpResponseMessage response);

    public async Task PostUspsSearchDomesticBaseRates(string request)
    {
        var uri = new Uri(httpClient.BaseAddress, $"api/v3/RateCalculator/postUspsSearchDomesticBaseRates");

        var request = new HttpRequestMessage(HttpMethod.Post, uri);
        request.Content = JsonContent.Create<string>(request);

        OnPostUspsSearchDomesticBaseRates(request);

        await AuthorizeRequest(request);

        var response = await httpClient.SendAsync(request);

        response.EnsureSuccessStatusCode();

        OnPostUspsSearchDomesticBaseRatesResponse(response);
    }

and this is what it should be:

/// <summary>
/// Called when [post usps search domestic base rates].
/// </summary>
/// <param name="request">The request.</param>
partial void OnPostUspsSearchDomesticBaseRates(HttpRequestMessage request);

/// <summary>
/// Called when [post usps search domestic base rates response].
/// </summary>
/// <param name="response">The response.</param>
partial void OnPostUspsSearchDomesticBaseRatesResponse(HttpResponseMessage response);

/// <summary>
/// Called when [post usps search domestic base rates].
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Nullable&lt;PostUspsSearchDomesticBaseRatesResponse&gt;.</returns>
public async Task<PostUspsSearchDomesticBaseRatesResponse?> PostUspsSearchDomesticBaseRates(
VisionSuiteShipManager.Server.Models.VisionSuiteCoreApi.PostUspsSearchDomesticBaseRatesRequest request)
{
    if (httpClient.BaseAddress == null) return null;
    var uri = new Uri(httpClient.BaseAddress, $"api/v3/RateCalculator/postUspsSearchDomesticBaseRates");

    var httpRequest = new HttpRequestMessage(HttpMethod.Post, uri);
    httpRequest.Content = JsonContent.Create(request);

    OnPostUspsSearchDomesticBaseRates(httpRequest);

    await AuthorizeRequest(httpRequest);

    var response = await httpClient.SendAsync(httpRequest);

    response.EnsureSuccessStatusCode();

    OnPostUspsSearchDomesticBaseRatesResponse(response);

    return await response.Content
        .ReadFromJsonAsync<
            VisionSuiteShipManager.Server.Models.VisionSuiteCoreApi.PostUspsSearchDomesticBaseRatesResponse>()
        .ConfigureAwait(false);
}

The JSON Request BODY should be (NOTE: Account number is FAKE):
{
"originZIPCode": "94538",
"destinationZIPCode": "47905",
"weight": 7.2,
"length": 25,
"width": 8.25,
"height": 8.625,
"mailClass": "USPS_GROUND_ADVANTAGE",
"processingCategory": "NON_MACHINABLE",
"destinationEntryFacilityType": "NONE",
"rateIndicator": "DR",
"priceType": "COMMERCIAL",
"mailingDate": "2023-12-28",
"accountType": "EPS",
"accountNumber": "1111111111"
}

The JSON Response should have been:
{
"totalBasePrice": 23.82,
"rates": [
{
"SKU": "DUXR0XXXXC08110",
"description": "USPS Ground Advantage Nonmachinable Dimensional Rectangular",
"priceType": "COMMERCIAL",
"price": 19.82,
"weight": 7.2,
"dimWeight": 11,
"fees": [
{
"name": "Nonstandard Length > 22",
"SKU": "D811XUXXXXX0000",
"price": 4
}
],
"startDate": "2023-07-09",
"endDate": "2024-01-20",
"warnings": [
{
"warningCode": "001",
"warningDescription": "NSA rate not found for request. Published rate returned."
}
],
"mailClass": "USPS_GROUND_ADVANTAGE",
"zone": "08"
}
]
}

4

Hi @FastTrak,

How does the method configuration look like in RBS? The parameter type seems to be set to string when it should be something else.

5

RBS sets it as a string as it does not show a suitable parameter type in the
dropdown. I was required to create the method with parameters manually.

6

You can type your own type in that dropdown.

I have recorded a short video showing how to send Body parameters in JSON format. It uses the JSONPlaceholder API.

post-body