Some time ago I wrote how to generate C# client for web api with OpenAPI support using online service https://generator3.swagger.io/api/generate. Limitation of this approach is that web api should be available online as well. But what to do if you develop web api and it is available only on localhost? One of the way is to use https://github.com/swagger-api/swagger-codegen but it is not very easy to use it on localhost.
Simpler solution is to use tool called NSwagStudio. At first we need to add support of OpenAPI to our web api - in my previous post I wrote how to do that: Add OpenAPI (Swagger) support to ASP.Net Core Web API. We will use the same code example here.
When we add OpenAPI support to our web api in addition to online documentation (which is available by url http://localhost:{port}/swagger/index.html) we also get endpoint with OpenAPI (swagger) JSON:
http://localhost:{port}/swagger/v1/swagger.json
which looks like this:
Having this endpoint it is very easy to generate strongly-typed C# client for our web api running on localhost using mentioned NSwagStudio. All we have to do is to choose runtime (we will use .NET6), paste url of swagger.json endpoint to the studio, check CSharp Client checkbox and click Generate Outputs:
Here is example of C# client generated for web api from our example with default settings:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 | //---------------------- // <auto-generated> // Generated using the NSwag toolchain v13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v13.0.0.0)) (http://NSwag.org) // </auto-generated> //---------------------- #pragma warning disable 108 // Disable "CS0108 '{derivedDto}.ToJson()' hides inherited member '{dtoBase}.ToJson()'. Use the new keyword if hiding was intended." #pragma warning disable 114 // Disable "CS0114 '{derivedDto}.RaisePropertyChanged(String)' hides inherited member 'dtoBase.RaisePropertyChanged(String)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword." #pragma warning disable 472 // Disable "CS0472 The result of the expression is always 'false' since a value of type 'Int32' is never equal to 'null' of type 'Int32?' #pragma warning disable 1573 // Disable "CS1573 Parameter '...' has no matching param tag in the XML comment for ... #pragma warning disable 1591 // Disable "CS1591 Missing XML comment for publicly visible type or member ..." #pragma warning disable 8073 // Disable "CS8073 The result of the expression is always 'false' since a value of type 'T' is never equal to 'null' of type 'T?'" #pragma warning disable 3016 // Disable "CS3016 Arrays as attribute arguments is not CLS-compliant" #pragma warning disable 8603 // Disable "CS8603 Possible null reference return" namespace MyNamespace { using System = global::System; [System.CodeDom.Compiler.GeneratedCode( "NSwag" , "13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v13.0.0.0))" )] public partial class Client { private string _baseUrl = "" ; private System.Net.Http.HttpClient _httpClient; private System.Lazy<Newtonsoft.Json.JsonSerializerSettings> _settings; public Client( string baseUrl, System.Net.Http.HttpClient httpClient) { BaseUrl = baseUrl; _httpClient = httpClient; _settings = new System.Lazy<Newtonsoft.Json.JsonSerializerSettings>(CreateSerializerSettings); } private Newtonsoft.Json.JsonSerializerSettings CreateSerializerSettings() { var settings = new Newtonsoft.Json.JsonSerializerSettings(); UpdateJsonSerializerSettings(settings); return settings; } public string BaseUrl { get { return _baseUrl; } set { _baseUrl = value; } } protected Newtonsoft.Json.JsonSerializerSettings JsonSerializerSettings { get { return _settings.Value; } } partial void UpdateJsonSerializerSettings(Newtonsoft.Json.JsonSerializerSettings settings); partial void PrepareRequest(System.Net.Http.HttpClient client, System.Net.Http.HttpRequestMessage request, string url); partial void PrepareRequest(System.Net.Http.HttpClient client, System.Net.Http.HttpRequestMessage request, System.Text.StringBuilder urlBuilder); partial void ProcessResponse(System.Net.Http.HttpClient client, System.Net.Http.HttpResponseMessage response); /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual System.Threading.Tasks.Task<System.Collections.Generic.ICollection<User>> ListAsync() { return ListAsync(System.Threading.CancellationToken.None); } /// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param> /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual async System.Threading.Tasks.Task<System.Collections.Generic.ICollection<User>> ListAsync(System.Threading.CancellationToken cancellationToken) { var urlBuilder_ = new System.Text.StringBuilder(); urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd( '/' ) : "" ).Append( "/User/List" ); var client_ = _httpClient; var disposeClient_ = false ; try { using (var request_ = new System.Net.Http.HttpRequestMessage()) { request_.Method = new System.Net.Http.HttpMethod( "GET" ); request_.Headers.Accept.Add(System.Net.Http.Headers.MediaTypeWithQualityHeaderValue.Parse( "text/plain" )); PrepareRequest(client_, request_, urlBuilder_); var url_ = urlBuilder_.ToString(); request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute); PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait( false ); var disposeResponse_ = true ; try { var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value); if (response_.Content != null && response_.Content.Headers != null ) { foreach (var item_ in response_.Content.Headers) headers_[item_.Key] = item_.Value; } ProcessResponse(client_, response_); var status_ = ( int )response_.StatusCode; if (status_ == 200) { var objectResponse_ = await ReadObjectResponseAsync<System.Collections.Generic.ICollection<User>>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } return objectResponse_.Object; } else if (status_ == 500) { string responseText_ = ( response_.Content == null ) ? string .Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait( false ); throw new ApiException( "Server Error" , status_, responseText_, headers_, null ); } else { var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } throw new ApiException<ProblemDetails>( "Error" , status_, objectResponse_.Text, headers_, objectResponse_.Object, null ); } } finally { if (disposeResponse_) response_.Dispose(); } } } finally { if (disposeClient_) client_.Dispose(); } } /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual System.Threading.Tasks.Task<User> DetailsAsync( int ? id) { return DetailsAsync(id, System.Threading.CancellationToken.None); } /// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param> /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual async System.Threading.Tasks.Task<User> DetailsAsync( int ? id, System.Threading.CancellationToken cancellationToken) { var urlBuilder_ = new System.Text.StringBuilder(); urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd( '/' ) : "" ).Append( "/User/Details?" ); if (id != null ) { urlBuilder_.Append(System.Uri.EscapeDataString( "id" ) + "=" ).Append(System.Uri.EscapeDataString(ConvertToString(id, System.Globalization.CultureInfo.InvariantCulture))).Append( "&" ); } urlBuilder_.Length--; var client_ = _httpClient; var disposeClient_ = false ; try { using (var request_ = new System.Net.Http.HttpRequestMessage()) { request_.Method = new System.Net.Http.HttpMethod( "GET" ); request_.Headers.Accept.Add(System.Net.Http.Headers.MediaTypeWithQualityHeaderValue.Parse( "text/plain" )); PrepareRequest(client_, request_, urlBuilder_); var url_ = urlBuilder_.ToString(); request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute); PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait( false ); var disposeResponse_ = true ; try { var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value); if (response_.Content != null && response_.Content.Headers != null ) { foreach (var item_ in response_.Content.Headers) headers_[item_.Key] = item_.Value; } ProcessResponse(client_, response_); var status_ = ( int )response_.StatusCode; if (status_ == 200) { var objectResponse_ = await ReadObjectResponseAsync<User>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } return objectResponse_.Object; } else if (status_ == 404) { var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } throw new ApiException<ProblemDetails>( "Not Found" , status_, objectResponse_.Text, headers_, objectResponse_.Object, null ); } else if (status_ == 500) { string responseText_ = ( response_.Content == null ) ? string .Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait( false ); throw new ApiException( "Server Error" , status_, responseText_, headers_, null ); } else { var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } throw new ApiException<ProblemDetails>( "Error" , status_, objectResponse_.Text, headers_, objectResponse_.Object, null ); } } finally { if (disposeResponse_) response_.Dispose(); } } } finally { if (disposeClient_) client_.Dispose(); } } /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual System.Threading.Tasks.Task SaveAsync(User body) { return SaveAsync(body, System.Threading.CancellationToken.None); } /// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param> /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual async System.Threading.Tasks.Task SaveAsync(User body, System.Threading.CancellationToken cancellationToken) { var urlBuilder_ = new System.Text.StringBuilder(); urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd( '/' ) : "" ).Append( "/User/Save" ); var client_ = _httpClient; var disposeClient_ = false ; try { using (var request_ = new System.Net.Http.HttpRequestMessage()) { var json_ = Newtonsoft.Json.JsonConvert.SerializeObject(body, _settings.Value); var content_ = new System.Net.Http.StringContent(json_); content_.Headers.ContentType = System.Net.Http.Headers.MediaTypeHeaderValue.Parse( "application/json" ); request_.Content = content_; request_.Method = new System.Net.Http.HttpMethod( "POST" ); PrepareRequest(client_, request_, urlBuilder_); var url_ = urlBuilder_.ToString(); request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute); PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait( false ); var disposeResponse_ = true ; try { var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value); if (response_.Content != null && response_.Content.Headers != null ) { foreach (var item_ in response_.Content.Headers) headers_[item_.Key] = item_.Value; } ProcessResponse(client_, response_); var status_ = ( int )response_.StatusCode; if (status_ == 200) { return ; } else if (status_ == 500) { string responseText_ = ( response_.Content == null ) ? string .Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait( false ); throw new ApiException( "Server Error" , status_, responseText_, headers_, null ); } else { var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } throw new ApiException<ProblemDetails>( "Error" , status_, objectResponse_.Text, headers_, objectResponse_.Object, null ); } } finally { if (disposeResponse_) response_.Dispose(); } } } finally { if (disposeClient_) client_.Dispose(); } } /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual System.Threading.Tasks.Task DeleteAsync( int ? id) { return DeleteAsync(id, System.Threading.CancellationToken.None); } /// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param> /// <returns>Success</returns> /// <exception cref="ApiException">A server side error occurred.</exception> public virtual async System.Threading.Tasks.Task DeleteAsync( int ? id, System.Threading.CancellationToken cancellationToken) { var urlBuilder_ = new System.Text.StringBuilder(); urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd( '/' ) : "" ).Append( "/User/Delete?" ); if (id != null ) { urlBuilder_.Append(System.Uri.EscapeDataString( "id" ) + "=" ).Append(System.Uri.EscapeDataString(ConvertToString(id, System.Globalization.CultureInfo.InvariantCulture))).Append( "&" ); } urlBuilder_.Length--; var client_ = _httpClient; var disposeClient_ = false ; try { using (var request_ = new System.Net.Http.HttpRequestMessage()) { request_.Method = new System.Net.Http.HttpMethod( "DELETE" ); PrepareRequest(client_, request_, urlBuilder_); var url_ = urlBuilder_.ToString(); request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute); PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait( false ); var disposeResponse_ = true ; try { var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value); if (response_.Content != null && response_.Content.Headers != null ) { foreach (var item_ in response_.Content.Headers) headers_[item_.Key] = item_.Value; } ProcessResponse(client_, response_); var status_ = ( int )response_.StatusCode; if (status_ == 200) { return ; } else if (status_ == 404) { var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } throw new ApiException<ProblemDetails>( "Not Found" , status_, objectResponse_.Text, headers_, objectResponse_.Object, null ); } else if (status_ == 500) { string responseText_ = ( response_.Content == null ) ? string .Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait( false ); throw new ApiException( "Server Error" , status_, responseText_, headers_, null ); } else { var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait( false ); if (objectResponse_.Object == null ) { throw new ApiException( "Response was null which was not expected." , status_, objectResponse_.Text, headers_, null ); } throw new ApiException<ProblemDetails>( "Error" , status_, objectResponse_.Text, headers_, objectResponse_.Object, null ); } } finally { if (disposeResponse_) response_.Dispose(); } } } finally { if (disposeClient_) client_.Dispose(); } } protected struct ObjectResponseResult<T> { public ObjectResponseResult(T responseObject, string responseText) { this .Object = responseObject; this .Text = responseText; } public T Object { get ; } public string Text { get ; } } public bool ReadResponseAsString { get ; set ; } protected virtual async System.Threading.Tasks.Task<ObjectResponseResult<T>> ReadObjectResponseAsync<T>(System.Net.Http.HttpResponseMessage response, System.Collections.Generic.IReadOnlyDictionary< string , System.Collections.Generic.IEnumerable< string >> headers, System.Threading.CancellationToken cancellationToken) { if (response == null || response.Content == null ) { return new ObjectResponseResult<T>( default (T), string .Empty); } if (ReadResponseAsString) { var responseText = await response.Content.ReadAsStringAsync().ConfigureAwait( false ); try { var typedBody = Newtonsoft.Json.JsonConvert.DeserializeObject<T>(responseText, JsonSerializerSettings); return new ObjectResponseResult<T>(typedBody, responseText); } catch (Newtonsoft.Json.JsonException exception) { var message = "Could not deserialize the response body string as " + typeof (T).FullName + "." ; throw new ApiException(message, ( int )response.StatusCode, responseText, headers, exception); } } else { try { 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); return new ObjectResponseResult<T>(typedBody, string .Empty); } } catch (Newtonsoft.Json.JsonException exception) { var message = "Could not deserialize the response body stream as " + typeof (T).FullName + "." ; throw new ApiException(message, ( int )response.StatusCode, string .Empty, headers, exception); } } } private string ConvertToString( object value, System.Globalization.CultureInfo cultureInfo) { if (value == null ) { return "" ; } if (value is System.Enum) { var name = System.Enum.GetName(value.GetType(), value); if (name != null ) { var field = System.Reflection.IntrospectionExtensions.GetTypeInfo(value.GetType()).GetDeclaredField(name); if (field != null ) { var attribute = System.Reflection.CustomAttributeExtensions.GetCustomAttribute(field, typeof (System.Runtime.Serialization.EnumMemberAttribute)) as System.Runtime.Serialization.EnumMemberAttribute; if (attribute != null ) { return attribute.Value != null ? attribute.Value : name; } } var converted = System.Convert.ToString(System.Convert.ChangeType(value, System.Enum.GetUnderlyingType(value.GetType()), cultureInfo)); return converted == null ? string .Empty : converted; } } else if (value is bool ) { return System.Convert.ToString(( bool )value, cultureInfo).ToLowerInvariant(); } else if (value is byte []) { return System.Convert.ToBase64String(( byte []) value); } else if (value.GetType().IsArray) { var array = System.Linq.Enumerable.OfType< object >((System.Array) value); return string .Join( "," , System.Linq.Enumerable.Select(array, o => ConvertToString(o, cultureInfo))); } var result = System.Convert.ToString(value, cultureInfo); return result == null ? "" : result; } } [System.CodeDom.Compiler.GeneratedCode( "NJsonSchema" , "13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v13.0.0.0))" )] public partial class ProblemDetails { [Newtonsoft.Json.JsonProperty( "type" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public string Type { get ; set ; } [Newtonsoft.Json.JsonProperty( "title" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public string Title { get ; set ; } [Newtonsoft.Json.JsonProperty( "status" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public int ? Status { get ; set ; } [Newtonsoft.Json.JsonProperty( "detail" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public string Detail { get ; set ; } [Newtonsoft.Json.JsonProperty( "instance" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public string Instance { get ; set ; } private System.Collections.Generic.IDictionary< string , object > _additionalProperties; [Newtonsoft.Json.JsonExtensionData] public System.Collections.Generic.IDictionary< string , object > AdditionalProperties { get { return _additionalProperties ?? (_additionalProperties = new System.Collections.Generic.Dictionary< string , object >()); } set { _additionalProperties = value; } } } [System.CodeDom.Compiler.GeneratedCode( "NJsonSchema" , "13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v13.0.0.0))" )] public partial class User { [Newtonsoft.Json.JsonProperty( "id" , Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public int Id { get ; set ; } [Newtonsoft.Json.JsonProperty( "firstName" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public string FirstName { get ; set ; } [Newtonsoft.Json.JsonProperty( "lastName" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public string LastName { get ; set ; } [Newtonsoft.Json.JsonProperty( "email" , Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)] public string Email { get ; set ; } } [System.CodeDom.Compiler.GeneratedCode( "NSwag" , "13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v13.0.0.0))" )] public partial class ApiException : System.Exception { public int StatusCode { get ; private set ; } public string Response { get ; private set ; } public System.Collections.Generic.IReadOnlyDictionary< string , System.Collections.Generic.IEnumerable< string >> Headers { get ; private set ; } public ApiException( string message, int statusCode, string response, System.Collections.Generic.IReadOnlyDictionary< string , System.Collections.Generic.IEnumerable< string >> headers, System.Exception innerException) : base (message + "\n\nStatus: " + statusCode + "\nResponse: \n" + ((response == null ) ? "(null)" : response.Substring(0, response.Length >= 512 ? 512 : response.Length)), innerException) { StatusCode = statusCode; Response = response; Headers = headers; } public override string ToString() { return string .Format( "HTTP Response: \n\n{0}\n\n{1}" , Response, base .ToString()); } } [System.CodeDom.Compiler.GeneratedCode( "NSwag" , "13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v13.0.0.0))" )] public partial class ApiException<TResult> : ApiException { public TResult Result { get ; private set ; } public ApiException( string message, int statusCode, string response, System.Collections.Generic.IReadOnlyDictionary< string , System.Collections.Generic.IEnumerable< string >> headers, TResult result, System.Exception innerException) : base (message, statusCode, response, headers, innerException) { Result = result; } } } #pragma warning restore 1591 #pragma warning restore 1573 #pragma warning restore 472 #pragma warning restore 114 #pragma warning restore 108 #pragma warning restore 3016 #pragma warning restore 8603 |
Having this client makes it much easier to use our web api from client apps (comparing with developing api calls manually). In addition to that NSwagStudio allows to set many different settings which change generated C# code (e.g. include synchronous method in addition to asynchronous which are generated by default, generate interfaces for client classes for simplifying unit testing, default namespace, etc):
You may check other settings when will play with NSwagStudio which for sure worth to spend some time on it. Hope that this knowledge will help to reduce development time and simplify consumption of your web APIs.