webtag query

[HansR]

When querying webtags with the URL:

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http://localhost:8998/api/tags/process.json?Extra Station Info: 

apparently some get the response

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TokenParser error in file: , InputString is zero length

From what I can tell, the response.StatusCode is "OK" and the StatusPhrase is also "OK".

Under which condition does CMX produce this response?

And yes, the Extra Station Info may or may not contain a webtag at the end so the query may or may not contain a webtag. Until now that has never been an issue.

[mcrossley]

It looks like the API tag processor is not thread safe, sigh
So, it can happen if two calls to the tags API overlap.

I'll see if I can fix it for the next release, I already put a fix in to change the return code/returned text on error.

[HansR]

OK, thanks.

[mcrossley]

That really isn't the way the API was intended to be used though. It expects a list of web tag names. If you want to process free text then the POST method should be used.

[HansR]

That really isn't the way the API was intended to be used though. It expects a list of web tag names. If you want to process free text then the POST method should be used.

OK. I verified it and indeed I do use the Post method as follows:

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    using ( StringContent requestData = new StringContent( data, Encoding.UTF8 ) )
    {
        using ( HttpResponseMessage response = await PostClient.PostAsync( thisURL, requestData ) )
        {
            if ( response.IsSuccessStatusCode )
            {
                retval = await response.Content.ReadAsStringAsync();
                Sup.LogTraceInfoMessage( $"PostUrlData success response : {response.StatusCode} - {response.ReasonPhrase}" );
            }
            else
            {
                Sup.LogTraceErrorMessage( $"PostUrlData : Error: {response.StatusCode} - {response.ReasonPhrase}" );
                retval = "";
            }
        } // End using response -> dispose
    } // End using requestData -> dispose

Just to simplify I gave the example through the Get in the browser. Sorry for that. I assume the Tag parser does not differ?

[mcrossley]

Just to simplify I gave the example through the Get in the browser. Sorry for that. I assume the Tag parser does not differ?

It does work a bit differently, but ultimately it uses the same token parser