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Business Central forum

Issue with writing/reading blob field to and from the table

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Posted on by 505

I'm using business central online. 

My table has a blob field and I need to store web API authentication token into it.

When I make a call to web API for the first time, I store the generated token in the table so that it can be re-used next time when I make a web API call.

When I try to read the blob field from the table, it is always empty.

Here is my code.

// store token in the table

Config."Current Auth Token".CreateOutStream(OutStr);
OutStr.WriteText('test token');
Config.MODIFY();
//Retrieve token
if(Config."Current Auth Token".HasValue()) then begin
Config."Current Auth Token".CreateInStream(InStr);
Instr.ReadText(token)
End;
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I have the same question (0)
  • Suggested answer
    Stefano Demiliani Profile Picture
    37,166 Most Valuable Professional on at

    I think you miss CALCFIELDS before creating the InStream object:

    Config.CALCFIELDS("Current Auth Token");

  • Priyank Bhavsar Profile Picture
    505 on at

    Perfect! Thanks a lot :)

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