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»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »How to find out if a given symbol name if valid ?
Author Topic: How to find out if a given symbol name if valid ? (2 messages, Page 1 of 1)

Dierk Droth
-Interested User-
Posts: 67
Joined: Aug 11, 2004
Posted: Aug 26, 2004 06:22 AM          Msg. 1 of 2
Hi,

I see two ways:
a) running a symbol lookup and scan incoming symbol names for the one I am looking for
b) submit a watchlist request and watch for incoming messages

How if a symbol name is invalid ?
With (a) there is a problem, since I don't know how many messages will come in. This basically would require some timer based solution -> prone to errors.
Alternative (b) could work, since I experienced, that in the event of an invalid symbol name there is a dummy "Q" message coming in having the string "Not found" in the 4th field.

Is there any other way to check a symbol name for validity ? What's the official, recommended way ?

Regards
Dierk Droth
www.trademagic.net
TradeMagic - Trading at its best

DTN_Natalie_H
-DTN Evangelist-
Posts: 175
Joined: May 10, 2004

DTN Market Access, LLC.

Posted: Aug 30, 2004 09:47 AM          Msg. 2 of 2
Dierk,

There is not another way to check for an invalid symbol. Either way will work. Thanks!
Natalie Hannan DTN Market Access, LLC.
 

 

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