I want to call an POST API Call and get some data. i use the swagger to do the call. The Problem is i got an Exception:
Cannot deserialize the current JSON array (e.g. [1,2,3]) into type because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly. To fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List<T> that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.
This is on the razor page:
using var client = await httpClientHelper.GetHttpClientWithAccessToken();
var result = await client.PostJsonAsync<JobDetail>($"{_serviceClientOptions.Value.BetriebstoolServiceAddress}/api/AbaReport?scope={scope}&mandant={mandant}&reportname={reportname}", body);
Here you have the Controller
[HttpPost]
[Authorize(Roles = AppRoles.User)]
[ProducesResponseType(typeof(JobDetail), StatusCodes.Status200OK)]
[SwaggerOperation("StartReport")]
public async Task<JobDetail> StartReport(int scope, int mandant, string reportname, string body)
{
var result = await _abaReportService.StartReport(scope, mandant, reportname, body);
return result;
}
Now the Service
public async Task<JobDetail> StartReport(int scope, int mandant, string reportname, string body)
{
var getscope = await _abacusBetriebstoolDatastoreService.GetServerAccessByScopeIdAsync(scope);
var abacusClient = await _clientFactory.CreateClient<AbacusApiClient>(getscope.ServerDNS, getscope.UserID, getscope.Passwort);
var result = await abacusClient.GetReportAsync(mandant, reportname, body);
return result;
}
At a point in the generated Code from Swagger, it tries to deserialize to json
using (var responseStream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false))
using (var streamReader = new System.IO.StreamReader(responseStream))
using (var jsonTextReader = new Newtonsoft.Json.JsonTextReader(streamReader))
{
var serializer = Newtonsoft.Json.JsonSerializer.Create(JsonSerializerSettings);
var typedBody = serializer.Deserialize<T>(jsonTextReader); `<-- here ist the exception`
return new ObjectResponseResult<T>(typedBody, string.Empty);
}
Then i get the Exception!
And i see the point because when i try to call the api with Postman it looks like this:
The "result" is an array but it should be an object like in the example in swagger:
The response 'JobDetail' looks like this.
[System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.3.0 (Newtonsoft.Json v9.0.0.0)")]
public partial class JobDetail
{
/// <summary>The id of the user that last logged in or an empty string, if no-one logged in</summary>
[Newtonsoft.Json.JsonProperty("id", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
public System.Guid? Id { get; set; }
[Newtonsoft.Json.JsonProperty("state", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
[Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
public JobDetailState? State { get; set; }
[Newtonsoft.Json.JsonProperty("message", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
public string Message { get; set; }
[Newtonsoft.Json.JsonProperty("finishedAt", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
public System.DateTimeOffset? FinishedAt { get; set; }
[Newtonsoft.Json.JsonProperty("result", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
public TypedMap Result { get; set; }
}
[System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.3.0 (Newtonsoft.Json v9.0.0.0)")]
public partial class TypedMap
{
[Newtonsoft.Json.JsonProperty("empty", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
public bool? Empty { get; set; }
[Newtonsoft.Json.JsonProperty("size", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
public int? Size { get; set; }
}
Why is the response an array? It should be a JSON object like in the swagger example.
I hope you can help me. Thank you :)
I searched a lot and found some solutions like this or that. But in my Problem i think the problem is in the generated code. i don't know
