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 just wanted to let u know that your data feed/service is by far the best!!! Your unfiltered tick data is excellent for reading order flow and none of your competitors delivers this quality of data!" - Comment from Peter via Email
"I would just like to say that IQFeed version 4 is running very well and I am very happy with its performance. I would also like to extend a big thanks for the fast and efficient help that I always receive. My questions and concerns are always addressed promptly. Way to go!" - Comment from Josh in CO.
"I was with ******* for 4 years at $230 a month, this is a huge savings for me, GOD BLESS YOU PEOPLE," - Comment from T.S. via Email
"Everything is working great with the API. I love it." - Comment from Calvin
"If someone needs the best quality data and backfill beyond what their broker provides at a rate that is the best in the industry, I highly recommend IQFeed." - Comment from Josh via Public Forum
"There is no doubt that IQFeed is the best data provider. I am very satisfied with your services. And IQFeed is the only one that I would recommend to my friends. Now, most of them are using your product in China." - Comment from Zhezhe
"Boy, probably spent a thousand hours trying to get ******* API to work right. And now two hours to have something running with IQFeed. Hmmm, guess I was pretty stupid to fight rather than switch all this time. And have gotten more customer service from you guys already than total from them… in five years." - Comment from Jim
"I have been using IQFeed now for a few years in MultiCharts and I have zero complaints. Very, very rare to have any data hiccups or anything at all go wrong." - Comment from Public Forum
"I just wanted to say how happy I am with your service. I was able to download the API docs last week and I was able to replicate Interactive Brokers historical bar queries and realtime bar queries over the weekend. That was about one of the fastest integrations that I've ever done and it works perfectly!!!!" - Comment from Jason via Email
"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
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 »Archive (2017 and earlier) »Data and Content Support »Time period filtering best practices and select update fields
Author Topic: Time period filtering best practices and select update fields (2 messages, Page 1 of 1)

mcohenmcohen
-Interested User-
Posts: 1
Joined: May 9, 2017
Posted: May 9, 2017 01:52 PM          Msg. 1 of 2
Hi,

My system: MacOS, Python via Wine

(A) I have my real time feed connection and am looking for the best practice way to filter by 5 minute bars for symbols. I tried to add 'Most Recent Trade Time' to a select update fields message but I'm getting an error response:
- E,Most Recent Trade Time is not a valid fieldset field.,

(B) On top of that, I now get connection refused and can no longer access via port 5009.

Please advise on both.

Thank you,
Matt

DTN_Tim Walter
-DTN Guru-
Posts: 1238
Joined: Apr 25, 2006
Posted: May 9, 2017 01:57 PM          Msg. 2 of 2
Hello,

A, is likely due to not setting your protocol. Make sure that for each socket that you create you are setting your protocol to 5.2. and then the documentation will match and make more sense.

B, this is a guess, but IQFeed will close after 5 seconds if no client is connected, so you will need to restart the app when this event occurs.

Tim
 

 

Time: Fri May 3, 2024 3:08 AM CFBB v1.2.0 9 ms.
© AderSoftware 2002-2003