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 use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from 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
"I used to have *******, but they are way more money for the same thing. I have had no probs with data from DTN since switching over." - Comment from Public Forum Post
"Thank God for your Data Feed as the only Zippers I see are on my pants (LOL), and no more 200 pip spikes to mess up charts." - Comment from Spiro via Email
"I like you guys better than *******...much more stable and a whole lot fewer issues." - Comment from Philip
"I am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George
"For anyone considering using DTN.IQ for a data feed, my experience with the quality of data and the tech support has been very positive." - Comment from Public Forum
"I will tell others who want to go into trading that DTN ProphetX is an invaluable tool, I don't think anyone can trade without it..." - Comment from Luther
"Excellent datafeed !!!" - Comment from Arely
"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
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 »NEW IQFEED FORUMS »New IQFeed Forum »Clarification on number of connections per second
Author Topic: Clarification on number of connections per second (2 messages, Page 1 of 1)

skoptions
-Interested User-
Posts: 4
Joined: Jul 10, 2022


Posted: Dec 12, 2022 12:10 AM          Msg. 1 of 2
I was looking for clarifications on the rate limiting for historical data requests. In the post describing this, it said whenever you make a new history request, your number of active requests is increased by 1. Every 1/25th of a second (40 milliseconds) this number decreases by one. As long as you don't exceed a rolling average of 50 history requests per second, you will avoid the "too many requests" error. In other words: time your requests such that you do not exceed 50 per second."

Does this mean I can make 50 new historical requests per second, even if the previous ones have not finished? Or do existing historical requests count in this 50 count as well? For example, if I have currently 15 historical data request ongoing, assuming they don't finish soon, am I limited to 50 new historical requests or 35 (50-15) requests in the next second?

DTN_Gary_Stephen
-DTN Guru-
Posts: 394
Joined: Jul 3, 2019


Posted: Dec 12, 2022 08:08 AM          Msg. 2 of 2
Quote: Does this mean I can make 50 new historical requests per second, even if the previous ones have not finished?


Yes.

Quote: do existing historical requests count in this 50 count as well?


No. The historical request limits formerly worked this way, but don't anymore. It's just 50 per second, period. It doesn't matter how many are still running.

I should clarify that the 50 per second limit is per login ID. Making multiple connections with the same login ID doesn't let each connection make 50 requests per second. It is 50 total across all connections, unless you have multiple login IDs.

Sincerely,
Gary Stephen
DTN IQFeed Implementation Support Specialist
 

 

Time: Thu April 25, 2024 6:16 AM CFBB v1.2.0 9 ms.
© AderSoftware 2002-2003