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Type: Posts; User: giuseppe.corti

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  1. Replies
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    Yes I confirm that you can use a client directly...

    Yes I confirm that you can use a client directly implementing the TLCP protocol with COMMUNITY edition by leveraging the parameter:

    <enabled_client_api>generic_client</enabled_client_api>

    of...
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    From a technical point of view you should only be...

    From a technical point of view you should only be sure that the version of TLCP you implement is compatible with the version of the server in use. For example TLCP version 2.2.0 targets Lightstreamer...
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    A flutter/dart client is in our roadmap, but not...

    A flutter/dart client is in our roadmap, but not in the very short term.
    But in the past we have suggested a workaround to those interested in the Flutter/Dart platform which consists of leverage...
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    Have you tried to approach all redis operations...

    Have you tried to approach all redis operations in the getJSON method (open the connection, retrieve the json and close)?
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    Hi, The error message seems not pertaining to...

    Hi,

    The error message seems not pertaining to redis but to the json parser.
    Please have a look at this...
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    Could you add a very simple log to file in your...

    Could you add a very simple log to file in your adapters? Just to understand what is going on.
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    There are several client libraries available for...

    There are several client libraries available for various technologies: Javascript (Web and NodeJS), JVM (Java Se, Android), Apple (iOS, macOS, tvOS, watchOS), .NET (.NET PCL, Unity).
    You can find...
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    Have you tried launching the script from a shell?...

    Have you tried launching the script from a shell? Have you noticed any error messages?

    However, an example of a java adapter launch script for linux that you can use as a reference can be found in...
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    Ok, you should check your server log looking for...

    Ok, you should check your server log looking for messages like these:

    Accepted connection (1) on the Notify socket on port 6721 from ...
    Accepted connection (1) on the Request/Reply socket on...
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    For the Python language, we do not have an...

    For the Python language, we do not have an official client library, but you can refer to this project on GitHub, as a starting point for your client-side developments:...
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    Hi, The server log confirms that http headers...

    Hi,

    The server log confirms that http headers Origin and username are valued in the request parsed by the server.
    Please be sure that the values are something you expect.


    Origin:...
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    Please could you leverage the following log...

    Please could you leverage the following log settings:

    <logger name="LightstreamerLogger.connections" level="DEBUG"/>
    <logger name="LightstreamerLogger.connections.http" level="DEBUG"/>

    With...
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    Hi, First I would check if http headers are...

    Hi,

    First I would check if http headers are actually present in the request and reach your adapter.
    Can you add some logs to your adapter to view the values for origin and un?
  14. Is your client aware of its typology? Ie. it can...

    Is your client aware of its typology? Ie. it can do something like this:


    var liverateId = "lmxtrade"; //
    var liverateSubscription = new Subscription("COMMAND",liverateId,fieldList);...
  15. Hi, Perhaps the most appropriate way to pass...

    Hi,

    Perhaps the most appropriate way to pass client information to the adapter is through extra http headers.
    Please check out the documentation of this method...
  16. You have both options available. Or have...

    You have both options available.
    Or have different Items all customized according to the user, and the client must explicitly subscribe to all of these.
    Or manage only one Item, obviously also...
  17. Hi, The scenario you described requires a...

    Hi,

    The scenario you described requires a personalized Item. I mean that each user subscribes to a specific Item reserved to the specific user.
    The Item name could be the client_com_id itself, if...
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    Server-side Lightstreamer can work on both Linux...

    Server-side Lightstreamer can work on both Linux and Windows systems, and in any other system for which a jvm implementation is available.

    On the client-side, we have several client libraries...
  19. In vb there is some system utilities (this ...

    In vb there is some system utilities (this for example) that help to serialize and deserialize from json to a common collection object, such a Dictionary, or a List, ...
    In this case you could keep...
  20. Hi From Lightstreamer point of view, the most...

    Hi

    From Lightstreamer point of view, the most natural mapping for a dynamic list of stocks is definitely an item in COMMAND mode.
    Obviously this requires that in your adapter you have to unpack...
  21. Hi John, The Java and Android API are very...

    Hi John,

    The Java and Android API are very very similar, so the guidelines for the migration from the old model to the unified model are basically the same.

    An example of Android application...
  22. Hi John, Yes you are right, the transition to...

    Hi John,

    Yes you are right, the transition to version 2 has involved a big step forward as the interface offered is completely different to implement the Unified Client API model.
    Over time,...
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    Versioning of Lightstreamer components is...

    Versioning of Lightstreamer components is independent.
    So 7.1.1 is the latest version of the Lightstreamer server, but each client-side and adapter-side sdk has its own version.

    I confirm that...
  24. Hi Laurent, Thank you for the feedback and I...

    Hi Laurent,

    Thank you for the feedback and I can confirm that in the 'deploy.zip' of the GitHub release there was an incorrect version of the .Net Adapter library. We'll fix it in a while.
    Sorry...
  25. Hi torquyme, Yes sure, Lightstreamer provides...

    Hi torquyme,

    Yes sure, Lightstreamer provides a publish and subscribe (pub-sub) paradigm, to decouple message producers from message consumers.
    So each client can subscribe to a subset of the...
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