GetFunctionMetadata will get the old metadata

[dotneterwhj]

When Sap RFC function changed the field, the .net program must be restarted to get the metadata after the change, otherwise the metadata obtained is before the change. Is there any way to get the latest metadata without restarting the .net program?

[campersau]

SapNwRfc doesn't cache this info, maybe SAP is caching it for that connection? Have you tried opening a new connection (without connection pool) to get the function metadata?

SapNwRfc/src/SapNwRfc/SapConnection.cs

Lines 138 to 148 in d8c56de

	public ISapFunctionMetadata GetFunctionMetadata(string functionName)
	{
	IntPtr functionDescriptionHandle = _interop.GetFunctionDesc(
	rfcHandle: _rfcConnectionHandle,
	funcName: functionName,
	errorInfo: out RfcErrorInfo errorInfo);
	errorInfo.ThrowOnError();
	return new SapFunctionMetadata(_interop, functionDescriptionHandle);
	}

[dotneterwhj]

SapNwRfc doesn't cache this info, maybe SAP is caching it for that connection? Have you tried opening a new connection (without connection pool) to get the function metadata?

SapNwRfc/src/SapNwRfc/SapConnection.cs

Lines 138 to 148 in d8c56de

	public ISapFunctionMetadata GetFunctionMetadata(string functionName)
	{
	IntPtr functionDescriptionHandle = _interop.GetFunctionDesc(
	rfcHandle: _rfcConnectionHandle,
	funcName: functionName,
	errorInfo: out RfcErrorInfo errorInfo);
	errorInfo.ThrowOnError();
	return new SapFunctionMetadata(_interop, functionDescriptionHandle);
	}

Thanks for your quick reply.
I've already used new connection. Here is my code

service.AddTransient<ISapConnection>(_ => new SapConnection(sapParam));

---

private readonly ISapConnection _connection;

public InterfaceSapQueryHandler(ISapConnection connection)
{
    _connection = connection;
}
public override void Handle(InterfaceSapQuery request)
{
    try
    {
        _connection.Connect();
        var functionMetadata = _connection.GetFunctionMetadata(request.SapFunction);
    }
    finally
    {
        _connection.Disconnect();
        _connection.Dispose();
    }

[basis100]

@dotneterwhj

Call RFC return data, I always declare a class first and then compile the execution file,

for example my codes:
var result = connection.CreateFunction("ZSAP_LIGHT_ADS_GET").Invoke<Get_OutputTable>(inputpara);

class Get_OutputTable 
{
    [SapName("OT_LIST")]
    public Get_OutputItem[] Items { get; set; }
}

class Get_OutputItem
{
    [SapName("MANDT")]
    public string MANDT  { get; set; }

    [SapName("UUID")]
    public string UUID { get; set; }
 }

I want to configure the class in a text file without having to compile the program every time.
Do you have any ideas? Or can you show me your codes?