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Hello, I try to write HttpService and take an error like in Error picture.I have added my code in Code picture.

English of the error is:
Error occurred during context method call process

What is the solution of this error?

I have emphasize that I am working on 1C:Drive.

Hi Mesut,

at first glance, there are no errors in your code...

Please check with the debugger: does the GetArrayProduct() procedure return an array or not? In general, does  "str" structure contain any data or not?

Probably you forget set New JsonWriterSettings. Can you try this ?

JSONWriter = New JSONWriter;
JSONWriterSettings = New JSONWriterSettings(, Chars.Tab);
JSONWriter.SetString(JSONWriterSettings);
WriteJSON(JSONWriter, str);
Result = JSONWriter.Close();

This is hardly the reason...

Here is a piece of working code:

If MethodName = "pricelist" Then 
      
   structureResult = New Structure;
   structureResult.Insert("products",    GetArrayProducts());
   structureResult.Insert("prices",    GetArrayPrices());
   structureResult.Insert("barcodes",    GetArrayBarCodes());
      
   JSONWriter = New JSONWriter;
      
   JSONWriter.SetString();
      
   WriteJSON(JSONWriter, structureResult);
   
   result = JSONWriter.Close();
   
Else 
      
   Response.StatusCode = 405;
   result = "Not found Method: " + MethodName;
      
EndIf;

In any case, we need to understand what the procedure GetArrayProduct() returns

I have tried you said but not works.Here is GetArrayProduct().Is there any errors in the function?