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How to get a Random Long? #561

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opened 2025-12-29 15:26:59 +01:00 by adam · 4 comments
adam commented 2025-12-29 15:26:59 +01:00
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Originally created by @felipetofoli on GitHub (Dec 8, 2023).

Originally assigned to: @StefH on GitHub.

How to get a Random Long?

I tried this implementation: "{{Random Type=\"Long\" Min=1000000000 Max=9999999999}}", but I am getting an error, even though 1000000000 and 9999999999 are valid Int64 numbers.

Is this handlebar expression correct? Or do we have a bug when generating Random long numbers?

Following are more details.

Implementation

var settings = new WireMockServerSettings
{
   AllowPartialMapping = true,
   StartAdminInterface = true,
   Urls = new[] { "http://localhost:3000/", },
   Logger = new WireMockConsoleLogger(),
};

var server = StandAloneApp.Start(settings);

server
   .Given(Request.Create()
       .WithPath(new ExactMatcher("/"))
       .UsingGet())
   .RespondWith(Response.Create()
       .WithStatusCode(200)
       .WithHeader("Content-Type", "application/json")
       .WithBodyAsJson(new
       {
           id = "{{Random Type=\"Long\" Min=1000000000 Max=9999999999}}",
       })
       .WithTransformer());

Console.WriteLine("Press any key to stop the server");
Console.ReadKey();

Response (error)

HTTP/1.1 500 Internal Server Error
Content-Type: application/json
Date: Fri, 08 Dec 2023 16:36:45 GMT
Server: Kestrel
Transfer-Encoding: chunked
 
{"Status":"Object of type 'System.String' cannot be converted to type 'System.Int64'."}

Logs

08/12/2023 16:41:03 [Info] : By Stef Heyenrath (https://github.com/WireMock-Net/WireMock.Net)
08/12/2023 16:41:03 [Debug] : Server settings {
  "Port": null,
  "UseSSL": null,
  "HostingScheme": null,
  "StartAdminInterface": true,
  "ReadStaticMappings": null,
  "WatchStaticMappings": null,
  "WatchStaticMappingsInSubdirectories": null,
  "ProxyAndRecordSettings": null,
  "Urls": [
    "http://localhost:3000/"
  ],
  "StartTimeout": 10000,
  "AllowPartialMapping": true,
  "AdminUsername": null,
  "AdminPassword": null,
  "AdminAzureADTenant": null,
  "AdminAzureADAudience": null,
  "RequestLogExpirationDuration": null,
  "MaxRequestLogCount": null,
  "CorsPolicyOptions": null,
  "AllowCSharpCodeMatcher": null,
  "AllowBodyForAllHttpMethods": null,
  "AllowOnlyDefinedHttpStatusCodeInResponse": null,
  "DisableJsonBodyParsing": null,
  "DisableRequestBodyDecompressing": null,
  "DisableDeserializeFormUrlEncoded": null,
  "HandleRequestsSynchronously": null,
  "CertificateSettings": null,
  "CustomCertificateDefined": false,
  "ClientCertificateMode": 0,
  "AcceptAnyClientCertificate": false,
  "WebhookSettings": null,
  "UseRegexExtended": true,
  "SaveUnmatchedRequests": null,
  "DoNotSaveDynamicResponseInLogEntry": null,
  "QueryParameterMultipleValueSupport": null
}
08/12/2023 16:41:04 [Info] : Server using .NET 6.0
08/12/2023 16:41:04 [Info] : AllowPartialMapping is set to True
08/12/2023 16:41:04 [Info] : Version [1.5.41.0]
08/12/2023 16:41:04 [Info] : Server listening at http://localhost:3000
Press any key to stop the server
08/12/2023 16:41:08 [Error] : Providing a Response for Mapping '5376449f-29f8-4686-8fb8-e13e328082ba' failed. HttpStatusCode set to 500. Exception: System.ArgumentException: Object of type 'System.String' cannot be converted to type 'System.Int64'.
   at HandlebarsDotNet.Helpers.HandlebarsHelpers.InvokeMethod(Nullable`1 model, Boolean methodIsOnlyUsedInContextOfABlockHelper, IHandlebars context, String helperName, MethodInfo methodInfo, Arguments arguments, Object instance, IHelperOptions options)
   at HandlebarsDotNet.Helpers.HandlebarsHelpers.<>c__DisplayClass8_0.<RegisterValueHelper>b__0(HelperOptions& options, Context& context, Arguments& arguments)
   at HandlebarsDotNet.Helpers.DelegateReturnHelperWithOptionsDescriptor.HandlebarsDotNet.Helpers.IHelperDescriptor<HandlebarsDotNet.HelperOptions>.Invoke(EncodedTextWriter& output, HelperOptions& options, Context& context, Arguments& arguments)
   at lambda_method37(Closure , EncodedTextWriter& , BindingContext )
   at HandlebarsDotNet.HandlebarsEnvironment.<>c__DisplayClass19_0.<Compile>b__0(TextWriter writer, Object context, Object data)
   at HandlebarsDotNet.HandlebarsEnvironment.<>c__DisplayClass20_0.<Compile>b__0(Object context, Object data)
   at WireMock.Transformers.Handlebars.HandlebarsContext.ParseAndEvaluate(String text, Object model)
   at WireMock.Transformers.Transformer.WalkNode(ITransformerContext transformerContext, ReplaceNodeOptions options, JToken node, Object model)
   at WireMock.Transformers.Transformer.WalkNode(ITransformerContext transformerContext, ReplaceNodeOptions options, JToken node, Object model)
   at WireMock.Transformers.Transformer.TransformBodyAsJson(ITransformerContext transformerContext, ReplaceNodeOptions options, Object model, IBodyData original)
   at WireMock.Transformers.Transformer.TransformBodyData(ITransformerContext transformerContext, ReplaceNodeOptions options, TransformModel model, IBodyData original, Boolean useTransformerForBodyAsFile)
   at WireMock.Transformers.Transformer.Transform(IMapping mapping, IRequestMessage requestMessage, IResponseMessage original, Boolean useTransformerForBodyAsFile, ReplaceNodeOptions options)
   at WireMock.ResponseBuilders.Response.ProvideResponseAsync(IMapping mapping, IRequestMessage requestMessage, WireMockServerSettings settings)
   at WireMock.Owin.WireMockMiddleware.InvokeInternalAsync(HttpContext ctx)
08/12/2023 16:41:08 [DebugRequestResponse] : Admin[False] {
  "Guid": "e9362a3c-d993-4d0c-bd39-452998c629e7",
  "Request": {
    "ClientIP": "::1",
    "DateTime": "2023-12-08T16:41:07.6321922Z",
    "Path": "/",
    "AbsolutePath": "/",
    "Url": "http://localhost:3000/",
    "AbsoluteUrl": "http://localhost:3000/",
    "ProxyUrl": null,
    "Query": {},
    "Method": "GET",
    "Headers": {
      "Accept": [
        "*/*"
      ],
      "Connection": [
        "keep-alive"
      ],
      "Host": [
        "localhost:3000"
      ],
      "User-Agent": [
        "PostmanRuntime/7.35.0"
      ],
      "Accept-Encoding": [
        "gzip, deflate, br"
      ],
      "Cache-Control": [
        "no-cache"
      ],
      "Postman-Token": [
        "26af13e8-28d3-4842-8e02-1b0cbeec3fd8"
      ]
    },
    "Cookies": {},
    "Body": null,
    "BodyAsJson": null,
    "BodyAsBytes": null,
    "BodyEncoding": null,
    "DetectedBodyType": null,
    "DetectedBodyTypeFromContentType": null
  },
  "Response": {
    "StatusCode": 500,
    "Headers": {
      "Content-Type": [
        "application/json"
      ]
    },
    "BodyDestination": null,
    "Body": null,
    "BodyAsJson": {
      "Guid": null,
      "Status": "Object of type 'System.String' cannot be converted to type 'System.Int64'.",
      "Error": null
    },
    "BodyAsBytes": null,
    "BodyAsFile": null,
    "BodyAsFileIsCached": null,
    "BodyOriginal": null,
    "BodyEncoding": null,
    "DetectedBodyType": 2,
    "DetectedBodyTypeFromContentType": null,
    "FaultType": null,
    "FaultPercentage": null
  },
  "MappingGuid": "5376449f-29f8-4686-8fb8-e13e328082ba",
  "MappingTitle": null,
  "RequestMatchResult": {
    "TotalScore": 2.0,
    "TotalNumber": 2,
    "IsPerfectMatch": true,
    "AverageTotalScore": 1.0,
    "MatchDetails": [
      {
        "Name": "PathMatcher",
        "Score": 1.0
      },
      {
        "Name": "MethodMatcher",
        "Score": 1.0
      }
    ]
  },
  "PartialMappingGuid": "5376449f-29f8-4686-8fb8-e13e328082ba",
  "PartialMappingTitle": null,
  "PartialRequestMatchResult": {
    "TotalScore": 2.0,
    "TotalNumber": 2,
    "IsPerfectMatch": true,
    "AverageTotalScore": 1.0,
    "MatchDetails": [
      {
        "Name": "PathMatcher",
        "Score": 1.0
      },
      {
        "Name": "MethodMatcher",
        "Score": 1.0
      }
    ]
  }
}

Please, let me know if you need any other information.
Thanks.

Originally created by @felipetofoli on GitHub (Dec 8, 2023). Originally assigned to: @StefH on GitHub. How to get a Random Long? I tried this implementation: `"{{Random Type=\"Long\" Min=1000000000 Max=9999999999}}"`, but I am getting an error, even though `1000000000` and `9999999999` are valid Int64 numbers. Is this handlebar expression correct? Or do we have a bug when generating Random `long` numbers? Following are more details. ## Implementation ```csharp var settings = new WireMockServerSettings { AllowPartialMapping = true, StartAdminInterface = true, Urls = new[] { "http://localhost:3000/", }, Logger = new WireMockConsoleLogger(), }; var server = StandAloneApp.Start(settings); server .Given(Request.Create() .WithPath(new ExactMatcher("/")) .UsingGet()) .RespondWith(Response.Create() .WithStatusCode(200) .WithHeader("Content-Type", "application/json") .WithBodyAsJson(new { id = "{{Random Type=\"Long\" Min=1000000000 Max=9999999999}}", }) .WithTransformer()); Console.WriteLine("Press any key to stop the server"); Console.ReadKey(); ``` ## Response (error) ``` HTTP/1.1 500 Internal Server Error Content-Type: application/json Date: Fri, 08 Dec 2023 16:36:45 GMT Server: Kestrel Transfer-Encoding: chunked {"Status":"Object of type 'System.String' cannot be converted to type 'System.Int64'."} ``` ## Logs ``` 08/12/2023 16:41:03 [Info] : By Stef Heyenrath (https://github.com/WireMock-Net/WireMock.Net) 08/12/2023 16:41:03 [Debug] : Server settings { "Port": null, "UseSSL": null, "HostingScheme": null, "StartAdminInterface": true, "ReadStaticMappings": null, "WatchStaticMappings": null, "WatchStaticMappingsInSubdirectories": null, "ProxyAndRecordSettings": null, "Urls": [ "http://localhost:3000/" ], "StartTimeout": 10000, "AllowPartialMapping": true, "AdminUsername": null, "AdminPassword": null, "AdminAzureADTenant": null, "AdminAzureADAudience": null, "RequestLogExpirationDuration": null, "MaxRequestLogCount": null, "CorsPolicyOptions": null, "AllowCSharpCodeMatcher": null, "AllowBodyForAllHttpMethods": null, "AllowOnlyDefinedHttpStatusCodeInResponse": null, "DisableJsonBodyParsing": null, "DisableRequestBodyDecompressing": null, "DisableDeserializeFormUrlEncoded": null, "HandleRequestsSynchronously": null, "CertificateSettings": null, "CustomCertificateDefined": false, "ClientCertificateMode": 0, "AcceptAnyClientCertificate": false, "WebhookSettings": null, "UseRegexExtended": true, "SaveUnmatchedRequests": null, "DoNotSaveDynamicResponseInLogEntry": null, "QueryParameterMultipleValueSupport": null } 08/12/2023 16:41:04 [Info] : Server using .NET 6.0 08/12/2023 16:41:04 [Info] : AllowPartialMapping is set to True 08/12/2023 16:41:04 [Info] : Version [1.5.41.0] 08/12/2023 16:41:04 [Info] : Server listening at http://localhost:3000 Press any key to stop the server 08/12/2023 16:41:08 [Error] : Providing a Response for Mapping '5376449f-29f8-4686-8fb8-e13e328082ba' failed. HttpStatusCode set to 500. Exception: System.ArgumentException: Object of type 'System.String' cannot be converted to type 'System.Int64'. at HandlebarsDotNet.Helpers.HandlebarsHelpers.InvokeMethod(Nullable`1 model, Boolean methodIsOnlyUsedInContextOfABlockHelper, IHandlebars context, String helperName, MethodInfo methodInfo, Arguments arguments, Object instance, IHelperOptions options) at HandlebarsDotNet.Helpers.HandlebarsHelpers.<>c__DisplayClass8_0.<RegisterValueHelper>b__0(HelperOptions& options, Context& context, Arguments& arguments) at HandlebarsDotNet.Helpers.DelegateReturnHelperWithOptionsDescriptor.HandlebarsDotNet.Helpers.IHelperDescriptor<HandlebarsDotNet.HelperOptions>.Invoke(EncodedTextWriter& output, HelperOptions& options, Context& context, Arguments& arguments) at lambda_method37(Closure , EncodedTextWriter& , BindingContext ) at HandlebarsDotNet.HandlebarsEnvironment.<>c__DisplayClass19_0.<Compile>b__0(TextWriter writer, Object context, Object data) at HandlebarsDotNet.HandlebarsEnvironment.<>c__DisplayClass20_0.<Compile>b__0(Object context, Object data) at WireMock.Transformers.Handlebars.HandlebarsContext.ParseAndEvaluate(String text, Object model) at WireMock.Transformers.Transformer.WalkNode(ITransformerContext transformerContext, ReplaceNodeOptions options, JToken node, Object model) at WireMock.Transformers.Transformer.WalkNode(ITransformerContext transformerContext, ReplaceNodeOptions options, JToken node, Object model) at WireMock.Transformers.Transformer.TransformBodyAsJson(ITransformerContext transformerContext, ReplaceNodeOptions options, Object model, IBodyData original) at WireMock.Transformers.Transformer.TransformBodyData(ITransformerContext transformerContext, ReplaceNodeOptions options, TransformModel model, IBodyData original, Boolean useTransformerForBodyAsFile) at WireMock.Transformers.Transformer.Transform(IMapping mapping, IRequestMessage requestMessage, IResponseMessage original, Boolean useTransformerForBodyAsFile, ReplaceNodeOptions options) at WireMock.ResponseBuilders.Response.ProvideResponseAsync(IMapping mapping, IRequestMessage requestMessage, WireMockServerSettings settings) at WireMock.Owin.WireMockMiddleware.InvokeInternalAsync(HttpContext ctx) 08/12/2023 16:41:08 [DebugRequestResponse] : Admin[False] { "Guid": "e9362a3c-d993-4d0c-bd39-452998c629e7", "Request": { "ClientIP": "::1", "DateTime": "2023-12-08T16:41:07.6321922Z", "Path": "/", "AbsolutePath": "/", "Url": "http://localhost:3000/", "AbsoluteUrl": "http://localhost:3000/", "ProxyUrl": null, "Query": {}, "Method": "GET", "Headers": { "Accept": [ "*/*" ], "Connection": [ "keep-alive" ], "Host": [ "localhost:3000" ], "User-Agent": [ "PostmanRuntime/7.35.0" ], "Accept-Encoding": [ "gzip, deflate, br" ], "Cache-Control": [ "no-cache" ], "Postman-Token": [ "26af13e8-28d3-4842-8e02-1b0cbeec3fd8" ] }, "Cookies": {}, "Body": null, "BodyAsJson": null, "BodyAsBytes": null, "BodyEncoding": null, "DetectedBodyType": null, "DetectedBodyTypeFromContentType": null }, "Response": { "StatusCode": 500, "Headers": { "Content-Type": [ "application/json" ] }, "BodyDestination": null, "Body": null, "BodyAsJson": { "Guid": null, "Status": "Object of type 'System.String' cannot be converted to type 'System.Int64'.", "Error": null }, "BodyAsBytes": null, "BodyAsFile": null, "BodyAsFileIsCached": null, "BodyOriginal": null, "BodyEncoding": null, "DetectedBodyType": 2, "DetectedBodyTypeFromContentType": null, "FaultType": null, "FaultPercentage": null }, "MappingGuid": "5376449f-29f8-4686-8fb8-e13e328082ba", "MappingTitle": null, "RequestMatchResult": { "TotalScore": 2.0, "TotalNumber": 2, "IsPerfectMatch": true, "AverageTotalScore": 1.0, "MatchDetails": [ { "Name": "PathMatcher", "Score": 1.0 }, { "Name": "MethodMatcher", "Score": 1.0 } ] }, "PartialMappingGuid": "5376449f-29f8-4686-8fb8-e13e328082ba", "PartialMappingTitle": null, "PartialRequestMatchResult": { "TotalScore": 2.0, "TotalNumber": 2, "IsPerfectMatch": true, "AverageTotalScore": 1.0, "MatchDetails": [ { "Name": "PathMatcher", "Score": 1.0 }, { "Name": "MethodMatcher", "Score": 1.0 } ] } } ``` Please, let me know if you need any other information. Thanks.
adam added the bug label 2025-12-29 15:26:59 +01:00
adam closed this issue 2025-12-29 15:26:59 +01:00
adam commented 2025-12-29 15:27:00 +01:00
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@StefH commented on GitHub (Dec 8, 2023):

it's a bug in Handlebars : https://github.com/Handlebars-Net/Handlebars.Net/pull/562

I'll check if I can build a workaround in wiremock

@StefH commented on GitHub (Dec 8, 2023): it's a bug in Handlebars : https://github.com/Handlebars-Net/Handlebars.Net/pull/562 I'll check if I can build a workaround in wiremock
adam commented 2025-12-29 15:27:00 +01:00
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@StefH commented on GitHub (Dec 8, 2023):

https://github.com/WireMock-Net/WireMock.Net/pull/1034

@StefH commented on GitHub (Dec 8, 2023): https://github.com/WireMock-Net/WireMock.Net/pull/1034
adam commented 2025-12-29 15:27:01 +01:00
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@StefH commented on GitHub (Dec 12, 2023):

Solved in new version

@StefH commented on GitHub (Dec 12, 2023): Solved in new version
adam commented 2025-12-29 15:27:02 +01:00
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@felipetofoli commented on GitHub (Dec 12, 2023):

Thanks!

@felipetofoli commented on GitHub (Dec 12, 2023): Thanks!
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