The first parameter of Create() is used for diagnostic purpose, for example to identify applications that erroneously subscribe to a huge number of rics and as a result may undermine Eikon quality and responsiveness.
Constraints on this application code are described in the exception retrieved in the error callback, as shown below (that will be in the Data API Guide too). Running this code, you'll see an error message containing:
> Invalid appCode: unable to trim
> appCode automatically; it must contain
> only alphanumeric values and must have
> a length between 1 and 21 charactersprivate void InitializeDataServices()
{
DataServicesFactory.Create("Olivier&Code",
this.OnDataServicesCreated,
this.OnDataServicesError);
}
// Error if something goes wrong.
private void OnDataServicesError(AggregateException exception)
{
MessageBox.Show(exception.GetBaseException().ToString(), "DataServices connectivity error",
MessageBoxButton.OK, MessageBoxImage.Error);
}
DataServicesFactory.Create() - What application should I use to create DataServices?

The first parameter of the DataServicesFactory.Create() method is an application code (string).
What code should I use? What is it used for?
Also, TimeSeriesDataService doesn't work (no data) if I use a special character (e.g. '&') in this code. What are the authorized characters?
Thanks.
Best Answer
-
The first parameter of Create() is used for diagnostic purpose, for example to identify applications that erroneously subscribe to a huge number of rics and as a result may undermine Eikon quality and responsiveness.
Constraints on this application code are described in the exception retrieved in the error callback, as shown below (that will be in the Data API Guide too). Running this code, you'll see an error message containing:
> Invalid appCode: unable to trim
> appCode automatically; it must contain
> only alphanumeric values and must have
> a length between 1 and 21 charactersprivate void InitializeDataServices()
{
DataServicesFactory.Create("Olivier&Code",
this.OnDataServicesCreated,
this.OnDataServicesError);
}
// Error if something goes wrong.
private void OnDataServicesError(AggregateException exception)
{
MessageBox.Show(exception.GetBaseException().ToString(), "DataServices connectivity error",
MessageBoxButton.OK, MessageBoxImage.Error);
}0
Answers
-
That's crystal clear.0
Categories
- All Categories
- 3 Polls
- 6 AHS
- 36 Alpha
- 166 App Studio
- 6 Block Chain
- 4 Bot Platform
- 18 Connected Risk APIs
- 47 Data Fusion
- 34 Data Model Discovery
- 684 Datastream
- 1.4K DSS
- 614 Eikon COM
- 5.2K Eikon Data APIs
- 10 Electronic Trading
- Generic FIX
- 7 Local Bank Node API
- 3 Trading API
- 2.9K Elektron
- 1.4K EMA
- 248 ETA
- 552 WebSocket API
- 37 FX Venues
- 14 FX Market Data
- 1 FX Post Trade
- 1 FX Trading - Matching
- 12 FX Trading – RFQ Maker
- 5 Intelligent Tagging
- 2 Legal One
- 23 Messenger Bot
- 3 Messenger Side by Side
- 9 ONESOURCE
- 7 Indirect Tax
- 60 Open Calais
- 275 Open PermID
- 44 Entity Search
- 2 Org ID
- 1 PAM
- PAM - Logging
- 6 Product Insight
- Project Tracking
- ProView
- ProView Internal
- 22 RDMS
- 1.9K Refinitiv Data Platform
- 641 Refinitiv Data Platform Libraries
- 4 LSEG Due Diligence
- LSEG Due Diligence Portal API
- 4 Refinitiv Due Dilligence Centre
- Rose's Space
- 1.2K Screening
- 18 Qual-ID API
- 13 Screening Deployed
- 23 Screening Online
- 12 World-Check Customer Risk Screener
- 1K World-Check One
- 46 World-Check One Zero Footprint
- 45 Side by Side Integration API
- 2 Test Space
- 3 Thomson One Smart
- 10 TR Knowledge Graph
- 151 Transactions
- 143 REDI API
- 1.8K TREP APIs
- 4 CAT
- 26 DACS Station
- 121 Open DACS
- 1.1K RFA
- 104 UPA
- 192 TREP Infrastructure
- 228 TRKD
- 915 TRTH
- 5 Velocity Analytics
- 9 Wealth Management Web Services
- 89 Workspace SDK
- 11 Element Framework
- 5 Grid
- 18 World-Check Data File
- 1 Yield Book Analytics
- 46 中文论坛