{"id":81,"date":"2020-12-28T19:19:59","date_gmt":"2020-12-28T18:19:59","guid":{"rendered":"http:\/\/192.168.178.38\/?p=81"},"modified":"2020-12-28T19:19:59","modified_gmt":"2020-12-28T18:19:59","slug":"debugging-tool-stacktraceapp","status":"publish","type":"post","link":"https:\/\/lpl-mind.de\/en\/debugging-tool-stacktraceapp\/","title":{"rendered":"Debugging Tool – StackTraceApp"},"content":{"rendered":"

Problem<\/strong>
\nBugs and there handling are very important for each software developer. Often bugs are detected during internal test processes. But it\u2019s also common that a bug appears the first time on a customer machine. In this case is important to log the exception \/ problem and to report this to the developer. Weiterhin ist das Schreiben von guten Logs nicht selbstverst\u00e4ndlich, dies soll allerdings nicht Thema diesem Blogeintrag sein. It\u2019s clear that good logs are important, but the technics to write good logs are not part of this blog entry.<\/p>\n

An example of an log is the stack trace. A stack trace describes the last process steps if an unhandled exception is thrown.In this example we throw an exception in the method \u201ctest\u201d. The log shows you the source code file and the line.<\/p>\n

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<\/div><\/td>
   bei System.Environment<\/span>.GetStackTrace<\/span>(<\/span>Exception e,<\/span> Boolean needFileInfo)<\/span>
\n   bei System.Environment<\/span>.get_StackTrace<\/span>(<\/span>)<\/span>
\n   bei ConsoleApp2.Program<\/span>.test<\/span>(<\/span>Int32 wert)<\/span> in C:<\/span>\\\\Users\\\\lpl\\\\source\\\\repos\\\\ConsoleApp2\\\\ConsoleApp2\\\\Program.cs<\/span>:<\/span>Zeile 31<\/span>.
\n   bei<\/span> ConsoleApp2.Program<\/span>.Main<\/span>(<\/span>String[<\/span>]<\/span> args)<\/span> in C:<\/span>\\\\Users\\\\lpl\\\\source\\\\repos\\\\ConsoleApp2\\\\ConsoleApp2\\\\Program.cs<\/span>:<\/span>Zeile 16<\/span>.<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

As you see in the stack trace above, the trace gives you a good hint where the error could be. But it\u2019s not clear which parameter are used to call the method \u201ctest\u201d, that this error appears. Also this used local variables and there values are not listed. These kind of information are often very important and gives you a better hint of that error. Often developers spent a lot of time to extract this kind of data. On technic is to reproduce that error, so that the developer is able to see the values with his debugger.<\/p>\n

Soluction<\/strong><\/p>\n

Based on this, I started to search for option to get this information\u2019s and values automatically, bevor a developer start to this about this issue. In my mind formed a tool that runs as a service on a client machine. And observes a process if any unhandled exceptions are thrown, so that this process is able to catch all needed information. Surly this kind of tool need to be fast and small, that it\u2019s not blocking or interfering the main process.
\nI found the library MdbEngine. This library is a mobile debugger, like the debugger on a developer machine. This debugger is able to catch the same information\u2019s as a developer with there debugger.<\/p>\n

This code below shows you how to you the MdbEngine debugger. First of all you need to attach the debugger to a process. For that you need the process id. Additionally you need a workaround right after the start.<\/p>\n

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<\/div><\/td>
_symbolPath =<\/span> Uri.<\/span>UnescapeDataString<\/span>(<\/span>symbolPath)<\/span>;<\/span>
\n_engine=<\/span>new<\/span><\/a> MDbgEngine(<\/span>)<\/span>;<\/span>
\n_engine.<\/span>Options<\/span>.<\/span>SymbolPath<\/span> =<\/span> _symbolPath;<\/span>
\n_process =<\/span> _engine.<\/span>Attach<\/span>(<\/span>processID)<\/span>;<\/span>
\n_process.<\/span>SymbolPath<\/span> =<\/span> _symbolPath;<\/span>
\n_process.<\/span>Go<\/span>(<\/span>)<\/span>.<\/span>WaitOne<\/span>(<\/span>)<\/span>;<\/span>
\n
\nif<\/span> (<\/span>!<\/span>(<\/span>_process.<\/span>StopReason<\/span> is<\/span><\/a> AttachCompleteStopReason)<\/span>)<\/span>
\nthrow<\/span> new<\/span><\/a> System<\/span>.<\/span>Exception<\/span>(<\/span>"Unexpected"<\/span>)<\/span>;<\/span>
\n
\n_process.<\/span>Go<\/span>(<\/span>)<\/span>;<\/span>
\n
\n_process.<\/span>PostDebugEvent<\/span> +=<\/span> ProcessOnPostDebugEvent;<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

With the PostDebugEvent we get a notification on a debug event. This means also on each exception.<\/p>\n

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<\/div><\/td>
private<\/span> void<\/span> ProcessOnPostDebugEvent(<\/span>object<\/span> sender, CustomPostCallbackEventArgs e)<\/span>
\n        {<\/span>
\n            try<\/span>
\n            {<\/span>
\n                Process(<\/span>sender, e)<\/span>;<\/span>
\n            }<\/span>
\n            catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span>
\n            {<\/span>
\n
\n            }<\/span>
\n        }<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

In der eigentlichen Verarbeitung gibt es zun\u00e4chst einen Filter auf den Debugeventtyp. Zus\u00e4tzlich wird gepr\u00fcft ob der Exceptionname nicht null ist.<\/p>\n

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<\/div><\/td>
if<\/span> (<\/span>e.<\/span>CallbackType<\/span> !=<\/span> ManagedCallbackType.<\/span>OnException2<\/span>)<\/span>
\n            return<\/span>;<\/span>
\nCorException2EventArgs exception;<\/span>
\nexception =<\/span> (<\/span>CorException2EventArgs)<\/span>e.<\/span>CallbackArgs<\/span>;<\/span>
\n
\nif<\/span> (<\/span>exception.<\/span>EventType<\/span> ==<\/span> CorDebugExceptionCallbackType.<\/span>DEBUG_EXCEPTION_FIRST_CHANCE<\/span> ||<\/span>
\n    exception.<\/span>EventType<\/span> ==<\/span> CorDebugExceptionCallbackType.<\/span>DEBUG_EXCEPTION_USER_FIRST_CHANCE<\/span>)<\/span>
\n{<\/span>
\n    MDbgThread thread;<\/span> thread =<\/span> _process.<\/span>Threads<\/span>.<\/span>Lookup<\/span>(<\/span>exception.<\/span>Thread<\/span>)<\/span>;<\/span>
\n   
\n    Exception exceptionResult =<\/span> new<\/span><\/a> Exception(<\/span>)<\/span>;<\/span>
\n    if<\/span> (<\/span>thread.<\/span>CurrentException<\/span>.<\/span>Name<\/span> !=<\/span> null<\/span>)<\/span>
\n    {<\/span>
\n        exceptionResult.<\/span>Name<\/span> =<\/span> thread.<\/span>CurrentException<\/span>.<\/span>Name<\/span>;<\/span>
\n        exceptionResult.<\/span>Value<\/span> =<\/span> thread.<\/span>CurrentException<\/span>.<\/span>Value<\/span>;<\/span>
\n    }<\/span>
\n    exceptionResult.<\/span>TypeName<\/span> =<\/span> thread.<\/span>CurrentException<\/span>.<\/span>TypeName<\/span>;<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

In a loop we read out all local variables and all parameters. We cut the stack trace after the first 10 frames. Normally the first 10 are enough, if you need more feel free to increase it. Just make sure that you do not ran into a performance issue, because your process is stopped at this point. Your process can only continue if you leave this method.<\/p>\n

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<\/div><\/td>
var<\/span> maxCount =<\/span> 10<\/span>;<\/span>
\nvar<\/span> count =<\/span> 0<\/span>;<\/span>
\nforeach<\/span> (<\/span>var<\/span> frame in<\/span> thread.<\/span>Frames<\/span>)<\/span>
\n{<\/span>
\n    if<\/span> (<\/span>frame.<\/span>Function<\/span> ==<\/span> null<\/span>)<\/span>
\n        continue<\/span>;<\/span>
\n
\n    if<\/span> (<\/span>count >=<\/span> maxCount)<\/span>
\n        break<\/span>;<\/span>
\n    count++;<\/span>
\n
\n    var<\/span> frameResult =<\/span> new<\/span><\/a> Frame(<\/span>)<\/span>;<\/span>
\n    if<\/span> (<\/span>frame.<\/span>SourcePosition<\/span> !=<\/span> null<\/span>)<\/span>
\n    {<\/span>
\n        frameResult.<\/span>Path<\/span> =<\/span> frame.<\/span>SourcePosition<\/span>.<\/span>Path<\/span>;<\/span>
\n        frameResult.<\/span>Line<\/span> =<\/span> frame.<\/span>SourcePosition<\/span>.<\/span>Line<\/span>;<\/span>
\n
\n    }<\/span>
\n
\n    frameResult.<\/span>FunctionName<\/span> =<\/span> frame.<\/span>Function<\/span>.<\/span>FullName<\/span>;<\/span>
\n    if<\/span> (<\/span>frame.<\/span>IsManaged<\/span> &&<\/span> !<\/span>frame.<\/span>IsInfoOnly<\/span>)<\/span>
\n    {<\/span>
\n        try<\/span>
\n        {<\/span>
\n            foreach<\/span> (<\/span>var<\/span> argument in<\/span> frame.<\/span>Function<\/span>.<\/span>GetArguments<\/span>(<\/span>frame)<\/span>)<\/span>
\n            {<\/span>
\n                var<\/span> value<\/span> =<\/span> GetValue(<\/span>argument)<\/span>;<\/span>
\n                if<\/span> (<\/span>value<\/span> !=<\/span> null<\/span>)<\/span>
\n                    frameResult.<\/span>Parameter<\/span>.<\/span>Add<\/span>(<\/span>value<\/span>)<\/span>;<\/span>
\n            }<\/span>
\n        }<\/span>
\n        catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span>
\n        {<\/span>
\n
\n        }<\/span>
\n
\n
\n        try<\/span>
\n        {<\/span>
\n            foreach<\/span> (<\/span>var<\/span> variable in<\/span> frame.<\/span>Function<\/span>.<\/span>GetActiveLocalVars<\/span>(<\/span>frame)<\/span>)<\/span>
\n            {<\/span>
\n                var<\/span> value<\/span> =<\/span> GetValue(<\/span>variable)<\/span>;<\/span>
\n                if<\/span> (<\/span>value<\/span> !=<\/span> null<\/span>)<\/span>
\n                    frameResult.<\/span>LocalVariables<\/span>.<\/span>Add<\/span>(<\/span>value<\/span>)<\/span>;<\/span>
\n            }<\/span>
\n        }<\/span>
\n        catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span>
\n        {<\/span>
\n
\n        }<\/span>
\n
\n    }<\/span>
\n
\n    exceptionResult.<\/span>Frames<\/span>.<\/span>Add<\/span>(<\/span>frameResult)<\/span>;<\/span>
\n}<\/span>
\nCreateTraceFile(<\/span>thread.<\/span>CurrentException<\/span>.<\/span>CorValue<\/span>.<\/span>Raw<\/span>.<\/span>GetHashCode<\/span>(<\/span>)<\/span> +<\/span> "_"<\/span> +<\/span> thread.<\/span>CurrentException<\/span>.<\/span>CorValue<\/span>.<\/span>Address<\/span>, exceptionResult)<\/span>;<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

We save all these values into a Json file. Additionally we need to define how we handle with complex types. We cannot use the object internal toString() method, because it\u2019s not clear if the method is correctly implemented. What we get from the MdbEngine, is to print all members of an object. So that we roll out an object into their peace\u2019s. we just need to define how deep we would like to go. Also make sure that you exclude some namespaces. Normally we do not need to roll out a foreign GUI object.<\/p>\n

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<\/div><\/td>
private<\/span> Value<\/span> GetValue(<\/span>MDbgValue aValue)<\/span>
\n{<\/span>
\n   
\n    try<\/span>
\n    {<\/span>
\n        Value<\/span> value<\/span> =<\/span> new<\/span><\/a> Value<\/span>(<\/span>)<\/span>;<\/span>
\n        value<\/span>.<\/span>Name<\/span> =<\/span> aValue.<\/span>Name<\/span>;<\/span>
\n        if<\/span> (<\/span>aValue.<\/span>IsNull<\/span>)<\/span>
\n        {<\/span>
\n            value<\/span>.<\/span>TypeName<\/span> =<\/span> aValue.<\/span>TypeName<\/span>;<\/span>
\n            value<\/span>.<\/span>ValueO<\/span> =<\/span> "null"<\/span>;<\/span>
\n        }<\/span>
\n        else<\/span>
\n        {<\/span>
\n            value<\/span>.<\/span>TypeName<\/span> =<\/span> aValue.<\/span>TypeName<\/span>;<\/span>
\n            value<\/span>.<\/span>ValueO<\/span> =<\/span> expandValue(<\/span>aValue)<\/span>;<\/span>
\n           
\n        }<\/span>
\n
\n        return<\/span> value<\/span>;<\/span>
\n    }<\/span>
\n    catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span>
\n    {<\/span>
\n        return<\/span> null<\/span>;<\/span>
\n    }<\/span>
\n}<\/span>
\n
\nprivate<\/span> string<\/span> expandValue(<\/span>MDbgValue value<\/span>)<\/span>
\n{<\/span>
\n    if<\/span>(<\/span>value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"WebControls"<\/span>)<\/span> ||<\/span>
\n       value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"ascx"<\/span>)<\/span> ||<\/span>
\n       value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"ASP"<\/span>)<\/span> ||<\/span>
\n       value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"System.Web"<\/span>)<\/span>)<\/span>
\n        return<\/span> value<\/span>.<\/span>GetStringValue<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
\n
\n    int<\/span> level =<\/span> 0<\/span>;<\/span>
\n    string<\/span> result =<\/span> ""<\/span>;<\/span>
\n    while<\/span> (<\/span>level <=<\/span> 3<\/span>)<\/span>
\n    {<\/span>
\n        try<\/span>
\n        {<\/span>
\n            result =<\/span> value<\/span>.<\/span>GetStringValue<\/span>(<\/span>level)<\/span>;<\/span>
\n            level++;<\/span>
\n        }<\/span>
\n        catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span>
\n        {<\/span>
\n            return<\/span> result;<\/span>
\n        }<\/span>
\n    }<\/span>
\n
\n    return<\/span> result;<\/span>
\n}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
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<\/div><\/td>
class<\/span> Options
\n{<\/span>
\n
\n[<\/span>Value<\/span>(<\/span>0<\/span>, Required =<\/span> true<\/span>, MetaName =<\/span> "ProcessID"<\/span>,
\nHelpText =<\/span> "ID off Process"<\/span>)<\/span>]<\/span>
\npublic<\/span> int<\/span> ProcessID {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span>
\n
\n[<\/span>Value<\/span>(<\/span>1<\/span>, Required =<\/span> true<\/span> , MetaName =<\/span> "FilePath"<\/span>,
\nHelpText =<\/span> @"Path to folder where debug files are saved.
\nHttpRuntime.AppDomainAppPath + \\"<\/span>\\\\\\\\App_Data\\\\\\\\TraceFiles\\\\\\\\\\" "<\/span>)<\/span>]<\/span>
\npublic<\/span> string<\/span> FilePath {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span>
\n
\n[<\/span>Value<\/span>(<\/span>2<\/span>, Required =<\/span> true<\/span>, MetaName =<\/span> "SymbolPath"<\/span>,
\nHelpText =<\/span> @"Path to folder where dlls and symbols are stored.
\nHttpRuntime.AppDomainAppPath + \\"<\/span>\\\\\\\\bin\\" "<\/span>)<\/span>]<\/span>
\npublic<\/span> string<\/span> SymbolPath {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span>
\n}<\/span>
\n
\nstatic<\/span> void<\/span> Main(<\/span>string<\/span>[<\/span>]<\/span> args)<\/span>
\n{<\/span>
\nCommandLine.<\/span>Parser<\/span>.<\/span>Default<\/span>.<\/span>ParseArguments<\/span>
\n<<\/span>options><\/span>(<\/span>args)<\/span>
\n.<\/span>WithParsed<\/span>
\n<<\/span>options><\/span>(<\/span>Start)<\/span>;<\/<\/span>options><\/<\/span>options><\/span>
\n
\nAppDomain appDomain =<\/span> AppDomain.<\/span>CurrentDomain<\/span>;<\/span>
\nappDomain.<\/span>ProcessExit<\/span> +=<\/span> new<\/span><\/a> EventHandler(<\/span>OnClose)<\/span>;<\/span>
\nwhile<\/span> (<\/span>true<\/span>)<\/span>
\n{<\/span>
\nThread.<\/span>Sleep<\/span>(<\/span>1000<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span>
\n
\nprivate<\/span> static<\/span> void<\/span> Start(<\/span>Options obj)<\/span>
\n{<\/span>
\nstackTrace =<\/span> new<\/span><\/a> StackTraceDataCollectorService(<\/span>obj.<\/span>ProcessID<\/span>, obj.<\/span>FilePath<\/span>, obj.<\/span>SymbolPath<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

Das Ergebnis sieht nun wie folgt aus.<\/p>\n

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<\/div><\/td>
{<\/span>
\n    "Name"<\/span>:<\/span> null<\/span>,<\/span>
\n    "Value"<\/span>:<\/span> null<\/span>,<\/span>
\n    "TypeName"<\/span>:<\/span> "System.Exception"<\/span>,<\/span>
\n    "Frames"<\/span>:<\/span> [<\/span>
\n        {<\/span>
\n            "Path"<\/span>:<\/span> "source\\\\<\/span>\\\\<\/span>repos\\\\<\/span>\\\\<\/span>ConsoleApp2\\\\<\/span>\\\\<\/span>ConsoleApp2\\\\<\/span>\\\\<\/span>Program.cs"<\/span>,<\/span>
\n            "Line"<\/span>:<\/span> 35<\/span>,<\/span>
\n            "FunctionName"<\/span>:<\/span> "ConsoleApp2.Program.test"<\/span>,<\/span>
\n            "Parameter"<\/span>:<\/span> [<\/span>
\n                {<\/span>
\n                    "Name"<\/span>:<\/span> "wert"<\/span>,<\/span>
\n                    "TypeName"<\/span>:<\/span> "N\/A"<\/span>,<\/span>
\n                    "ValueO"<\/span>:<\/span> "null"<\/span>
\n                }<\/span>,<\/span>
\n                {<\/span>
\n                    "Name"<\/span>:<\/span> "wert2"<\/span>,<\/span>
\n                    "TypeName"<\/span>:<\/span> "System.Int32"<\/span>,<\/span>
\n                    "ValueO"<\/span>:<\/span> "2"<\/span>
\n                }<\/span>,<\/span>
\n                {<\/span>
\n                    "Name"<\/span>:<\/span> "StringValue"<\/span>,<\/span>
\n                    "TypeName"<\/span>:<\/span> "System.String"<\/span>,<\/span>
\n                    "ValueO"<\/span>:<\/span> "\\"<\/span>myvalue\\"<\/span>"<\/span>
\n                }<\/span>
\n            ]<\/span>,<\/span>
\n            "LocalVariables"<\/span>:<\/span> [<\/span>
\n                {<\/span>
\n                    "Name"<\/span>:<\/span> "b"<\/span>,<\/span>
\n                    "TypeName"<\/span>:<\/span> "System.Int32"<\/span>,<\/span>
\n                    "ValueO"<\/span>:<\/span> "1"<\/span>
\n                }<\/span>
\n            ]<\/span>
\n        }<\/span>,<\/span>
\n        {<\/span>
\n            "Path"<\/span>:<\/span> "source\\\\<\/span>\\\\<\/span>repos\\\\<\/span>\\\\<\/span>ConsoleApp2\\\\<\/span>\\\\<\/span>ConsoleApp2\\\\<\/span>\\\\<\/span>Program.cs"<\/span>,<\/span>
\n            "Line"<\/span>:<\/span> 17<\/span>,<\/span>
\n            "FunctionName"<\/span>:<\/span> "ConsoleApp2.Program.Main"<\/span>,<\/span>
\n            "Parameter"<\/span>:<\/span> [<\/span>
\n                {<\/span>
\n                    "Name"<\/span>:<\/span> "args"<\/span>,<\/span>
\n                    "TypeName"<\/span>:<\/span> "N\/A"<\/span>,<\/span>
\n                    "ValueO"<\/span>:<\/span> "null"<\/span>
\n                }<\/span>
\n            ]<\/span>,<\/span>
\n            "LocalVariables"<\/span>:<\/span> [<\/span>]<\/span>
\n        }<\/span>
\n    ]<\/span>,<\/span>
\n    "DateTime"<\/span>:<\/span> "2019-10-29T09:41:18.8572539+01:00"<\/span>
\n}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

Weiter unten finden Sie die Sourcen.<\/p>\n

Program.cs<\/strong><\/p>\n

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<\/div><\/td>
using<\/span> System<\/span>;<\/span>
\nusing<\/span> System.Collections.Generic<\/span>;<\/span>
\nusing<\/span> System.Diagnostics<\/span>;<\/span>
\nusing<\/span> System.Linq<\/span>;<\/span>
\nusing<\/span> System.Text<\/span>;<\/span>
\nusing<\/span> System.Threading<\/span>;<\/span>
\nusing<\/span> System.Threading.Tasks<\/span>;<\/span>
\nusing<\/span> System.Web<\/span>;<\/span>
\nusing<\/span> Microsoft.Samples.Debugging.CorDebug<\/span>;<\/span>
\nusing<\/span> Microsoft.Samples.Debugging.CorDebug.NativeApi<\/span>;<\/span>
\nusing<\/span> Microsoft.Samples.Debugging.MdbgEngine<\/span>;<\/span>
\nusing<\/span> CommandLine<\/span>;<\/span>
\n
\nnamespace<\/span> StackTraceApp
\n{<\/span>
\nclass<\/span> Program
\n{<\/span>
\nprivate<\/span> static<\/span> StackTrace stackTrace
\nclass<\/span> Options
\n{<\/span>
\n
\n[<\/span>Value<\/span>(<\/span>0<\/span>, Required =<\/span> true<\/span>, MetaName =<\/span> "ProcessID"<\/span>,
\nHelpText =<\/span> "ID off Process"<\/span>)<\/span>]<\/span>
\npublic<\/span> int<\/span> ProcessID {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span>
\n
\n[<\/span>Value<\/span>(<\/span>1<\/span>, Required =<\/span> true<\/span> , MetaName =<\/span> "FilePath"<\/span>,
\nHelpText =<\/span> @"Path to folder where debug files are saved.
\nHttpRuntime.AppDomainAppPath + \\"<\/span>\\\\\\\\App_Data\\\\\\\\TraceFiles\\\\\\\\\\" "<\/span>)<\/span>]<\/span>
\npublic<\/span> string<\/span> FilePath {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span>
\n
\n[<\/span>Value<\/span>(<\/span>2<\/span>, Required =<\/span> true<\/span>, MetaName =<\/span> "SymbolPath"<\/span>,
\nHelpText =<\/span> @"Path to folder where dlls and symbols are stored.
\nHttpRuntime.AppDomainAppPath + \\"<\/span>\\\\\\\\bin\\" "<\/span>)<\/span>]<\/span>
\npublic<\/span> string<\/span> SymbolPath {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span>
\n}<\/span>
\n
\nstatic<\/span> void<\/span> Main(<\/span>string<\/span>[<\/span>]<\/span> args)<\/span>
\n{<\/span>
\nCommandLine.<\/span>Parser<\/span>.<\/span>Default<\/span>.<\/span>ParseArguments<\/span>
\n<<\/span>options><\/span>(<\/span>args)<\/span>
\n.<\/span>WithParsed<\/span>
\n<<\/span>options><\/span>(<\/span>Start)<\/span>;<\/<\/span>options><\/<\/span>options><\/span>
\n
\nAppDomain appDomain =<\/span> AppDomain.<\/span>CurrentDomain<\/span>;<\/span>
\nappDomain.<\/span>ProcessExit<\/span> +=<\/span> new<\/span><\/a> EventHandler(<\/span>OnClose)<\/span>;<\/span>
\nwhile<\/span> (<\/span>true<\/span>)<\/span>
\n{<\/span>
\nThread.<\/span>Sleep<\/span>(<\/span>1000<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span>
\n
\nprivate<\/span> static<\/span> void<\/span> OnClose(<\/span>object<\/span> sender, EventArgs e)<\/span>
\n{<\/span>
\nstackTrace.<\/span>Close<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span>
\n
\nprivate<\/span> static<\/span> void<\/span> Start(<\/span>Options obj)<\/span>
\n{<\/span>
\nstackTrace =<\/span> new<\/span><\/a> StackTraceDataCollectorService(<\/span>obj.<\/span>ProcessID<\/span>, obj.<\/span>FilePath<\/span>, obj.<\/span>SymbolPath<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span>
\n
\n}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

StackTraceService.cs<\/strong><\/p>\n

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<\/div><\/td>
using<\/span> System<\/span>;<\/span>
\nusing<\/span> System.Collections.Generic<\/span>;<\/span>
\nusing<\/span> System.Diagnostics<\/span>;<\/span>
\nusing<\/span> System.IO<\/span>;<\/span>
\nusing<\/span> System.Linq<\/span>;<\/span>
\nusing<\/span> System.Text<\/span>;<\/span>
\nusing<\/span> System.Threading<\/span>;<\/span>
\nusing<\/span> System.Threading.Tasks<\/span>;<\/span>
\nusing<\/span> System.Timers<\/span>;<\/span>
\nusing<\/span> System.Web<\/span>;<\/span>
\nusing<\/span> Microsoft.Samples.Debugging.CorDebug<\/span>;<\/span>
\nusing<\/span> Microsoft.Samples.Debugging.CorDebug.NativeApi<\/span>;<\/span>
\nusing<\/span> Microsoft.Samples.Debugging.MdbgEngine<\/span>;<\/span>
\nusing<\/span> Newtonsoft.Json<\/span>;<\/span>
\n
\nnamespace<\/span> StackTraceApp {<\/span>
\n public<\/span> class<\/span> StackTraceService {<\/span>
\n  private<\/span> MDbgEngine _engine;<\/span>
\n  private<\/span> MDbgProcess _process;<\/span>
\n  private<\/span> string<\/span> _filePath;<\/span>
\n  private<\/span> string<\/span> _symbolPath;<\/span>
\n
\n  public<\/span> StackTraceService(<\/span>int<\/span> processID, string<\/span> filePath, string<\/span> symbolPath)<\/span> {<\/span>
\n
\n   _filePath =<\/span> Uri.<\/span>UnescapeDataString<\/span>(<\/span>filePath)<\/span>;<\/span>
\n   _symbolPath =<\/span> Uri.<\/span>UnescapeDataString<\/span>(<\/span>symbolPath)<\/span>;<\/span>
\n   _engine =<\/span> new<\/span><\/a> MDbgEngine(<\/span>)<\/span>;<\/span>
\n   _engine.<\/span>Options<\/span>.<\/span>SymbolPath<\/span> =<\/span> _symbolPath;<\/span>
\n   _process =<\/span> _engine.<\/span>Attach<\/span>(<\/span>processID)<\/span>;<\/span>
\n   _process.<\/span>SymbolPath<\/span> =<\/span> _symbolPath;<\/span>
\n   _process.<\/span>Go<\/span>(<\/span>)<\/span>.<\/span>WaitOne<\/span>(<\/span>)<\/span>;<\/span>
\n
\n   if<\/span> (<\/span>!<\/span>(<\/span>_process.<\/span>StopReason<\/span> is<\/span><\/a> AttachCompleteStopReason)<\/span>)<\/span>
\n    throw<\/span> new<\/span><\/a> System<\/span>.<\/span>Exception<\/span>(<\/span>"Unexpected"<\/span>)<\/span>;<\/span>
\n
\n   _process.<\/span>Go<\/span>(<\/span>)<\/span>;<\/span>
\n
\n   _process.<\/span>PostDebugEvent<\/span> +=<\/span> ProcessOnPostDebugEvent;<\/span>
\n
\n   System.Timers<\/span><\/span>.<\/span>Timer<\/span> aTimer =<\/span> new<\/span><\/a> System.Timers<\/span><\/span>.<\/span>Timer<\/span>(<\/span>)<\/span>;<\/span>
\n   aTimer.<\/span>Elapsed<\/span> +=<\/span> new<\/span><\/a> ElapsedEventHandler(<\/span>CleanUp)<\/span>;<\/span>
\n   aTimer.<\/span>Interval<\/span> =<\/span> 60000<\/span>;<\/span>
\n   aTimer.<\/span>Enabled<\/span> =<\/span> true<\/span>;<\/span>
\n   aTimer.<\/span>AutoReset<\/span> =<\/span> true<\/span>;<\/span>
\n
\n   AllCleanUp(<\/span>)<\/span>;<\/span>
\n  }<\/span>
\n
\n  public<\/span> void<\/span> Close(<\/span>)<\/span> {<\/span>
\n   _process.<\/span>Detach<\/span>(<\/span>)<\/span>;<\/span>
\n  }<\/span>
\n
\n  private<\/span> void<\/span> AllCleanUp(<\/span>)<\/span> {<\/span>
\n   if<\/span> (<\/span>!<\/span>Directory.<\/span>Exists<\/span>(<\/span>_filePath)<\/span>)<\/span> {<\/span>
\n    Directory.<\/span>CreateDirectory<\/span>(<\/span>_filePath)<\/span>;<\/span>
\n   }<\/span>
\n
\n   System.IO<\/span><\/span>.<\/span>DirectoryInfo<\/span> di =<\/span> new<\/span><\/a> DirectoryInfo(<\/span>_filePath)<\/span>;<\/span>
\n
\n   foreach<\/span>(<\/span>FileInfo file in<\/span> di.<\/span>GetFiles<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
\n    file.<\/span>Delete<\/span>(<\/span>)<\/span>;<\/span>
\n   }<\/span>
\n  }<\/span>
\n
\n  private<\/span> void<\/span> CleanUp(<\/span>object<\/span> sender, ElapsedEventArgs e)<\/span> {<\/span>
\n   if<\/span> (<\/span>!<\/span>Directory.<\/span>Exists<\/span>(<\/span>_filePath)<\/span>)<\/span> {<\/span>
\n    Directory.<\/span>CreateDirectory<\/span>(<\/span>_filePath)<\/span>;<\/span>
\n   }<\/span>
\n
\n   System.IO<\/span><\/span>.<\/span>DirectoryInfo<\/span> di =<\/span> new<\/span><\/a> DirectoryInfo(<\/span>_filePath)<\/span>;<\/span>
\n
\n   foreach<\/span>(<\/span>FileInfo file in<\/span> di.<\/span>GetFiles<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
\n    if<\/span> (<\/span>file.<\/span>CreationTime<\/span>.<\/span>AddMinutes<\/span>(<\/span>30<\/span>)<\/span> &<\/span> lt;<\/span> =<\/span> DateTime.<\/span>Now<\/span>)<\/span> {<\/span>
\n     file.<\/span>Delete<\/span>(<\/span>)<\/span>;<\/span>
\n    }<\/span>
\n   }<\/span>
\n  }<\/span>
\n  private<\/span> void<\/span> ProcessOnPostDebugEvent(<\/span>object<\/span> sender, CustomPostCallbackEventArgs e)<\/span> {<\/span>
\n   try<\/span> {<\/span>
\n    Process(<\/span>sender, e)<\/span>;<\/span>
\n   }<\/span> catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span> {<\/span>}<\/span>
\n  }<\/span>
\n  private<\/span> void<\/span> Process(<\/span>object<\/span> sender, CustomPostCallbackEventArgs e)<\/span> {<\/span>
\n   if<\/span> (<\/span>e.<\/span>CallbackType<\/span> !=<\/span> ManagedCallbackType.<\/span>OnException2<\/span>)<\/span> return<\/span>;<\/span>
\n   CorException2EventArgs exception;<\/span>
\n   exception =<\/span> (<\/span>CorException2EventArgs)<\/span> e.<\/span>CallbackArgs<\/span>;<\/span>
\n   if<\/span> (<\/span>exception.<\/span>EventType<\/span> ==<\/span> CorDebugExceptionCallbackType.<\/span>DEBUG_EXCEPTION_FIRST_CHANCE<\/span> ||<\/span> exception.<\/span>EventType<\/span> ==<\/span> CorDebugExceptionCallbackType.<\/span>DEBUG_EXCEPTION_USER_FIRST_CHANCE<\/span>)<\/span> {<\/span>
\n    MDbgThread thread;<\/span>
\n    thread =<\/span> _process.<\/span>Threads<\/span>.<\/span>Lookup<\/span>(<\/span>exception.<\/span>Thread<\/span>)<\/span>;<\/span>
\n    Exception exceptionResult =<\/span> new<\/span><\/a> Exception(<\/span>)<\/span>;<\/span>
\n    if<\/span> (<\/span>thread.<\/span>CurrentException<\/span>.<\/span>Name<\/span> !=<\/span> null<\/span>)<\/span> {<\/span>
\n     exceptionResult.<\/span>Name<\/span> =<\/span> thread.<\/span>CurrentException<\/span>.<\/span>Name<\/span>;<\/span>
\n     exceptionResult.<\/span>Value<\/span> =<\/span> thread.<\/span>CurrentException<\/span>.<\/span>Value<\/span>;<\/span>
\n    }<\/span>
\n    exceptionResult.<\/span>TypeName<\/span> =<\/span> thread.<\/span>CurrentException<\/span>.<\/span>TypeName<\/span>;<\/span>
\n    var<\/span> maxCount =<\/span> 10<\/span>;<\/span>
\n    var<\/span> count =<\/span> 0<\/span>;<\/span>
\n    bool<\/span> wasSPData =<\/span> false<\/span>;<\/span>
\n    foreach<\/span>(<\/span>var<\/span> frame in<\/span> thread.<\/span>Frames<\/span>)<\/span> {<\/span>
\n     if<\/span> (<\/span>frame.<\/span>Function<\/span> ==<\/span> null<\/span>)<\/span> continue<\/span>;<\/span>
\n     if<\/span> (<\/span>!<\/span>wasSPData &<\/span> amp;<\/span> &<\/span> amp;<\/span> frame.<\/span>Function<\/span>.<\/span>FullName<\/span>.<\/span>Contains<\/span>(<\/span>"SPData"<\/span>)<\/span>)<\/span> {<\/span>
\n      wasSPData =<\/span> true<\/span>;<\/span>
\n      maxCount =<\/span> count +<\/span> 3<\/span>;<\/span>
\n     }<\/span>
\n     if<\/span> (<\/span>count &<\/span> gt;<\/span> =<\/span> maxCount)<\/span>
\n      break<\/span>;<\/span>
\n     count++;<\/span>
\n
\n     var<\/span> frameResult =<\/span> new<\/span><\/a> Frame(<\/span>)<\/span>;<\/span>
\n     if<\/span> (<\/span>frame.<\/span>SourcePosition<\/span> !=<\/span> null<\/span>)<\/span> {<\/span>
\n      frameResult.<\/span>Path<\/span> =<\/span> frame.<\/span>SourcePosition<\/span>.<\/span>Path<\/span>;<\/span>
\n      frameResult.<\/span>Line<\/span> =<\/span> frame.<\/span>SourcePosition<\/span>.<\/span>Line<\/span>;<\/span>
\n
\n     }<\/span>
\n
\n     frameResult.<\/span>FunctionName<\/span> =<\/span> frame.<\/span>Function<\/span>.<\/span>FullName<\/span>;<\/span>
\n     if<\/span> (<\/span>frame.<\/span>IsManaged<\/span> &<\/span> amp;<\/span> &<\/span> amp;<\/span> !<\/span>frame.<\/span>IsInfoOnly<\/span>)<\/span> {<\/span>
\n      try<\/span> {<\/span>
\n       foreach<\/span>(<\/span>var<\/span> argument in<\/span> frame.<\/span>Function<\/span>.<\/span>GetArguments<\/span>(<\/span>frame)<\/span>)<\/span> {<\/span>
\n        var<\/span> value<\/span> =<\/span> GetValue(<\/span>argument)<\/span>;<\/span>
\n        if<\/span> (<\/span>value<\/span> !=<\/span> null<\/span>)<\/span>
\n         frameResult.<\/span>Parameter<\/span>.<\/span>Add<\/span>(<\/span>value<\/span>)<\/span>;<\/span>
\n       }<\/span>
\n      }<\/span> catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span> {<\/span>
\n
\n      }<\/span>
\n
\n      try<\/span> {<\/span>
\n       foreach<\/span>(<\/span>var<\/span> variable in<\/span> frame.<\/span>Function<\/span>.<\/span>GetActiveLocalVars<\/span>(<\/span>frame)<\/span>)<\/span> {<\/span>
\n        var<\/span> value<\/span> =<\/span> GetValue(<\/span>variable)<\/span>;<\/span>
\n        if<\/span> (<\/span>value<\/span> !=<\/span> null<\/span>)<\/span>
\n         frameResult.<\/span>LocalVariables<\/span>.<\/span>Add<\/span>(<\/span>value<\/span>)<\/span>;<\/span>
\n       }<\/span>
\n      }<\/span> catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span> {<\/span>
\n
\n      }<\/span>
\n
\n     }<\/span>
\n
\n     exceptionResult.<\/span>Frames<\/span>.<\/span>Add<\/span>(<\/span>frameResult)<\/span>;<\/span>
\n    }<\/span>
\n
\n    CreateTraceFile(<\/span>thread.<\/span>CurrentException<\/span>.<\/span>CorValue<\/span>.<\/span>Raw<\/span>.<\/span>GetHashCode<\/span>(<\/span>)<\/span> +<\/span>
\n     "_"<\/span> +<\/span> thread.<\/span>CurrentException<\/span>.<\/span>CorValue<\/span>.<\/span>Address<\/span>, exceptionResult)<\/span>;<\/span>
\n
\n   }<\/span>
\n  }<\/span>
\n
\n  private<\/span> struct<\/span> ToPrint {<\/span>
\n   public<\/span> MDbgThread Thread;<\/span>
\n   public<\/span> Exception ExceptionResult;<\/span>
\n  }<\/span>
\n
\n  private<\/span> Value<\/span> GetValue(<\/span>MDbgValue aValue)<\/span> {<\/span>
\n
\n   try<\/span> {<\/span>
\n    Value<\/span> value<\/span> =<\/span> new<\/span><\/a> Value<\/span>(<\/span>)<\/span>;<\/span>
\n    value<\/span>.<\/span>Name<\/span> =<\/span> aValue.<\/span>Name<\/span>;<\/span>
\n    if<\/span> (<\/span>aValue.<\/span>IsNull<\/span>)<\/span> {<\/span>
\n     value<\/span>.<\/span>TypeName<\/span> =<\/span> aValue.<\/span>TypeName<\/span>;<\/span>
\n     value<\/span>.<\/span>ValueO<\/span> =<\/span> "null"<\/span>;<\/span>
\n    }<\/span> else<\/span> {<\/span>
\n     value<\/span>.<\/span>TypeName<\/span> =<\/span> aValue.<\/span>TypeName<\/span>;<\/span>
\n     value<\/span>.<\/span>ValueO<\/span> =<\/span> expandValue(<\/span>aValue)<\/span>;<\/span>
\n
\n    }<\/span>
\n
\n    return<\/span> value<\/span>;<\/span>
\n   }<\/span> catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span> {<\/span>
\n    return<\/span> null<\/span>;<\/span>
\n   }<\/span>
\n  }<\/span>
\n
\n  private<\/span> string<\/span> expandValue(<\/span>MDbgValue value<\/span>)<\/span> {<\/span>
\n   if<\/span> (<\/span>value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"WebControls"<\/span>)<\/span> ||<\/span>
\n    value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"ascx"<\/span>)<\/span> ||<\/span>
\n    value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"ASP"<\/span>)<\/span> ||<\/span>
\n    value<\/span>.<\/span>TypeName<\/span>.<\/span>Contains<\/span>(<\/span>"System.Web"<\/span>)<\/span>)<\/span>
\n    return<\/span> value<\/span>.<\/span>GetStringValue<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
\n
\n   int<\/span> level =<\/span> 0<\/span>;<\/span>
\n   string<\/span> result =<\/span> ""<\/span>;<\/span>
\n   while<\/span> (<\/span>level &<\/span> lt;<\/span> =<\/span> 3<\/span>)<\/span> {<\/span>
\n    try<\/span> {<\/span>
\n     result =<\/span> value<\/span>.<\/span>GetStringValue<\/span>(<\/span>level)<\/span>;<\/span>
\n     level++;<\/span>
\n    }<\/span> catch<\/span> (<\/span>System<\/span>.<\/span>Exception<\/span>)<\/span> {<\/span>
\n     return<\/span> result;<\/span>
\n    }<\/span>
\n   }<\/span>
\n
\n   return<\/span> result;<\/span>
\n  }<\/span>
\n
\n  private<\/span> void<\/span> CreateTraceFile(<\/span>string<\/span> ID, Exception exceptionResult)<\/span> {<\/span>
\n   if<\/span> (<\/span>!<\/span>Directory.<\/span>Exists<\/span>(<\/span>_filePath)<\/span>)<\/span> {<\/span>
\n    Directory.<\/span>CreateDirectory<\/span>(<\/span>_filePath)<\/span>;<\/span>
\n   }<\/span>
\n
\n   string<\/span> path =<\/span> Path.<\/span>Combine<\/span>(<\/span>_filePath, ID.<\/span>ToString<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n
\n   if<\/span> (<\/span>File.<\/span>Exists<\/span>(<\/span>path)<\/span>)<\/span> {<\/span>
\n    File.<\/span>Delete<\/span>(<\/span>path)<\/span>;<\/span>
\n   }<\/span>
\n
\n   byte<\/span>[<\/span>]<\/span> bytes =<\/span> Encoding.<\/span>UTF8<\/span>.<\/span>GetBytes<\/span>(<\/span>JsonConvert.<\/span>SerializeObject<\/span>(<\/span>exceptionResult)<\/span>)<\/span>;<\/span>
\n   FileStream fs =<\/span> File.<\/span>Create<\/span>(<\/span>path)<\/span>;<\/span>
\n   fs.<\/span>Write<\/span>(<\/span>bytes, 0<\/span>, bytes.<\/span>Length<\/span>)<\/span>;<\/span>
\n
\n   fs.<\/span>Close<\/span>(<\/span>)<\/span>;<\/span>
\n  }<\/span>
\n
\n  private<\/span> class<\/span> Exception {<\/span>
\n   public<\/span> string<\/span> Name {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n
\n   public<\/span> Object<\/span> Value<\/span> {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n
\n   public<\/span> string<\/span> TypeName {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n
\n   public<\/span> List Frames {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span> =<\/span> new<\/span><\/a> List(<\/span>)<\/span>;<\/span>
\n
\n   public<\/span> DateTime DateTime {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span> =<\/span> DateTime.<\/span>Now<\/span>;<\/span>
\n  }<\/span>
\n
\n  private<\/span> class<\/span> Frame {<\/span>
\n   public<\/span> string<\/span> Path {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n   public<\/span> int<\/span> Line {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n   public<\/span> string<\/span> FunctionName {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n
\n   public<\/span> List <<\/span> value<\/span> ><\/span> Parameter {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span> =<\/span> new<\/span><\/a> List <<\/span> value<\/span> ><\/span> (<\/span>)<\/span>;<\/span> <<\/span> \/<\/span>value<\/span>><\/<\/span>value<\/span> ><\/span>
\n
\n   public<\/span> List <<\/span> value<\/span> ><\/span> LocalVariables {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span> =<\/span> new<\/span><\/a> List <<\/span> value<\/span> ><\/span> (<\/span>)<\/span>;<\/span>
\n  }<\/span> <<\/span> \/<\/span>value<\/span>><\/<\/span>value<\/span> ><\/span>
\n
\n  private<\/span> class<\/span> Value<\/span> {<\/span>
\n   public<\/span> string<\/span> Name {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n
\n   public<\/span> string<\/span> TypeName {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n
\n   public<\/span> Object<\/span> ValueO {<\/span>
\n    get<\/span>;<\/span>
\n    set<\/span>;<\/span>
\n   }<\/span>
\n  }<\/span>
\n }<\/span>
\n}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n","protected":false},"excerpt":{"rendered":"

Problem Bugs and there handling are very important for each software developer. Often bugs are detected during internal test processes. But it\u2019s also common that a bug appears the first time on a customer machine. In this case is important to log the exception \/ problem and to report this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-81","post","type-post","status-publish","format-standard","hentry","category-allgemein"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/posts\/81"}],"collection":[{"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/comments?post=81"}],"version-history":[{"count":13,"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/posts\/81\/revisions"}],"predecessor-version":[{"id":95,"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/posts\/81\/revisions\/95"}],"wp:attachment":[{"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/media?parent=81"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/categories?post=81"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lpl-mind.de\/en\/wp-json\/wp\/v2\/tags?post=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}