1. Thomson Reuters Contributions Channel
REUTERS / Firstname Lastname
Thomson Reuters Contributions Channel
David.M.Thomas
Developer Advocate - Platform APIs

2. The Contributions Channel Overview
A New service allows clients to contribute content on the Elektron Network
Hosting a cluster of servers that provides the Contributions logic previously placed at the client site
All contributors (TREP, Contex and 3rd Party) will connect to this new service

3. 3rd Party Application Integration
Clients and solution providers can develop contribution applications using the Elektron APIs :
Outputs are connected directly to the new Contributions Channel
Uses Elektron SDK tunnel stream connections
Uses OMM Post Messages
Supports MarketPrice Model
Credentials will be authenticated against our AAA platform

4. Tunnel Streams Available in the ETA Reactor and EMA
A tunnel stream is a private stream with authentication
Establishes a connection between Application and Contribution Gateway
Allows multiple sub-streams to co-exist within the tunnel stream.
Contributions are made using sub-streams
EMA/ETAProvider
EMA/ETA Consumer

5. Contributions Topology
Contributions Service Gateway
Contribution Channel Service Cluster
Delivery Direct
Or Internet
Encrypted TLS over WAN
3rd Party App
Elektron API

6. Benefits
Removes the need for client sited contributions only server devices
Provides a higher level of performance than Marketlink
Provides a simpler contribution solution that is consistent with TREP publishing
Uses strategic Elektron APIs rather than MFOT
Use of Open Message Model will allow the contribution of more complex data types

7. Demonstration: Contributions Application
Using EMA Java from the Elektron SDK
Establish an encrypted connection to the server
Create an OmmConsumer configured as "ChannelType::RSSL_ENCRYPTED"
Make a TunnelStreamRequest request.
Response: StatusMsg with StreamState = Open indicates the Tunnel Stream is open.

8. Demonstration: Contributions Application
Perform a client login:
Supply user name and password credentials.
Response: RefreshMsg with StreamState = Open
Contribute data using post messages
Response: AckMsg
An AckMsg provides an indication that the contribution was received by the service.
If the AckMsg contains a NackCode then the contribution failed

9. Example PostMsg

10. Demonstration: Contributions Application
View the result

11. References Developer Portal https://developers.thomsonreuters.com
Tutorials
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