Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)




"I'm very glad I switched to IQFeed. It's working perfectly with no lag, even during fast market conditions." - Comment from Andy via Email
"I "bracket trade" all major news releases and I have not found one lag or glitch with DTN.IQ feed. I am very comfortable with their feed under all typical news conditions (Fed releases, employment numbers, etc)." - Comment from Public Forum
"This is an excellent value, the system is generous (allowing for 500 stocks) and stable (and really is tick-by-tick), and the support is fantastic." - Comment from Shirin via Email
"I just wanted to tell you what a fine job you have been doing. While *******, from what I hear, has been down and out, off and on, IQ feed has held like a champ this week." - Comment from Shirin
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"As a past ******* customer(and not a happy one), IQ Feed by DTN is a much better and cheaper product with great customer support. I have had no problems at all since switching over." - Comment from Public Forum
"My broker in Davenport suggested I give you a try as he uses your service and says its the best." - Comment from Bill via RT Chat
"I use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from Public Forum
"Interactive Brokers tick data was inconsistent, so I have switched to using DTN exclusively. It is great to no longer have to worry about my datafeed all day long." - Comment from Philippe
"I've never had DTN go out on me since switching. ******* would go down a couple times every month when I was using them." - Comment from Bryce in AL.
Home  Search  Register  Login  Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTNMarkets on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »IQFeed Developer »IQFeed Developer Wish List »Lookup: SLM / SST / STC / SSC / SNC [RequestID] causes error
Author Topic: Lookup: SLM / SST / STC / SSC / SNC [RequestID] causes error (3 messages, Page 1 of 1)

jobrieniii
-Interested User-
Posts: 2
Joined: Oct 10, 2020


Posted: Oct 10, 2020 07:16 AM          Msg. 1 of 3
While writing some interface code, I noticed that LOOKUP SLM / SST / STC / SSC / SNC doesn't seem to be able to take a [RequestID] as outlined in the docs...

... responds properly when RequestID is not included.

It ends up resulting in an !SYNTAX_ERROR!.

<see attached>

Obviously not a big deal - just happened to notice.

PROTOCOL: 6.2.0.5



File Attached: lookup_requestid_error.png (downloaded 211 times)

DTN_Steve_S
-DTN Guru-
Posts: 2086
Joined: Nov 21, 2005


Posted: Oct 10, 2020 12:28 PM          Msg. 2 of 3
Note that protocols are only Major.Minor. I'm guessing you meant IQFeed version 6.2.0.5 and the protocol you are using is unknown from your post.

With that said, I am unable to duplicate this behavior except on old protocols where RequestID was not yet supported on these commands (4.9-5.1). It would appear you are using one of those older protocols.

 S,SET PROTOCOL,6.2
S,CURRENT PROTOCOL,6.2
SLM
LS,1,NGM,Nasdaq Global Market,5,NASDAQ,
LS,2,NCM,National Capital Market,5,NASDAQ,
...
SLM,TEST
TEST,LS,1,NGM,Nasdaq Global Market,5,NASDAQ,
TEST,LS,2,NCM,National Capital Market,5,NASDAQ,
...


S,SET PROTOCOL,6.1
S,CURRENT PROTOCOL,6.1
SLM
1,NGM,Nasdaq Global Market,5,NASDAQ,
2,NCM,National Capital Market,5,NASDAQ,
...
TEST,1,NGM,Nasdaq Global Market,5,NASDAQ,
TEST,2,NCM,National Capital Market,5,NASDAQ,
...

protocol 6.0 is the same as 6.1 and 5.2 for this request)
S,SET PROTOCOL,5.2
S,CURRENT PROTOCOL,5.2
SLM
1,NGM,Nasdaq Global Market,5,NASDAQ,
2,NCM,National Capital Market,5,NASDAQ,
...
SLM,TEST
TEST,1,NGM,Nasdaq Global Market,5,NASDAQ,
TEST,2,NCM,National Capital Market,5,NASDAQ,
...


Here is where it stops working (and all older protocols). This is intended.
 S,SET PROTOCOL,5.1
S,CURRENT PROTOCOL,5.1
SLM
1,NGM,Nasdaq Global Market,
2,NCM,National Capital Market,
...
SLM,TEST
E,!SYNTAX_ERROR!,

jobrieniii
-Interested User-
Posts: 2
Joined: Oct 10, 2020


Posted: Oct 13, 2020 01:25 AM          Msg. 3 of 3
Steve - thanks for setting me straight - definitely was not setting the protocol properly as you noted.

Thanks - John
 

 

Time: Sat January 23, 2021 7:25 AM CFBB v1.2.0 31 ms.
© AderSoftware 2002-2003