A WebApi error occurred InvalidOperationException: Incomplete protobuf payload received; got 0 of 30727 bytes

Question

Good morning.

I have a WebApi "GetByList" method written in NetCore 3.1 and C #.

[HttpPost]
[Route("Data/GetByList")]
public async Task<TagResultList> GetByList([FromBody] Entities.SearchParamsListApiModel searchParamsModel)
 {
    //some code
 }

Input method type:

[ProtoContract]
public class SearchParamsListApiModel : IValidatableObject
{
    [ProtoMember(1, Name = "SearchParamses")]
    public List<SearchParams> SearchParamses { get; set; }

    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
    {
        return new SearchParamsListValidatable(SearchParamses).Validate(validationContext);
    }
}

Next, I wrote a class to test the call to this method.

public class GetDataPointsTests : WebApiClientTestsBase
{

    [Test]
    public void SearchParamListWithCorrectDataAndManyRows([Values(880, 881)] int searchParamsCount)
    {
        var searchParams = new List<SearchParams>();

        for (var i = 1; i <= searchParamsCount; i++)
        {
            searchParams.Add(new SearchParams
            {
                Tag = $"tag{i}",
                StartDateUTC = DateTime.MinValue.ToUniversalTime(),
                EndDateUTC = DateTime.UtcNow,
                Limit = int.MaxValue
            });
        }

        SignIn();

        var result = _webApiClient.GetDataPoints(searchParams);
    }
}

The first test (for 880 number of input parameters) is executed without errors, and the second test (for 881) is executed with the following error:

System.InvalidOperationException: Incomplete protobuf payload received; got 0 of 30727 bytes

Q: How do I correct this error?

Answer 1

The LogTraceRequest(context) method was found to be used as follows:

 app.Use((context, next) =>
 {
      LogTraceRequest(context);
      //other code
 }

and if you comment on this method, the error does not occur. The method was not written by me, so I followed the advice of its author.