@Damith What Thisaru means is that custom widgets(with a dependency of @wso2-dashboards/widgets:1.2.2) are not backward compatible. It only works in SP 4.2.0 (SP-4.2.0-rc2 is the successful release candidate, we still waiting on quarterly release announcement to change the tags). This issue is only for the getWidgetChannelManager API, other functionalities are backward compatible. Users essentially need not use the widgetChannelManager API, as they can create the WebSocket connection within the custom widget.
@Nisala & @Lasantha: This is due to a fix made in the latest version, to reuse WidgetChannelManager passed from the portal app[1]. This makes the base widget lib dependant upon the portal app. How about a fix such that base widget will reuse the WidgetChannelManager if passed from the portal app or will create a new instance of WidgetChannelManger? WDYT? [1] https://github.com/wso2/carbon-dashboards/blob/master/base-widget/src/Widget.jsx#L39 Best Regards, *Niveathika Rajendran,* *Software Engineer.* *Mobile : +94 077 903 7536* On Fri, Jul 6, 2018 at 6:46 PM Damith Wickramasinghe <[email protected]> wrote: > Hi Thisaru, > > First thing is we need to use SP 4.2.0-rc2 version in order to use >> WidgetChannelManager. Otherwise the communication channel will fail >> > > Do u mean in 4.2.0 released version this does not work ? > > On Fri, Jul 6, 2018 at 12:47 PM, Thisaru Guruge <[email protected]> wrote: > >> Hi Nivethika, >> >> Thanks for the immense support you gave, Now I am able to create the >> widget. >> >> There were some issues I faced when creating the widget, and thought to >> share them, and how I resolved them. >> >> - First thing is we need to use SP 4.2.0-rc2 version in order to use >> WidgetChannelManager. Otherwise the communication channel will fail >> - Next thing is to define the datastore in the widgetConf.json file. In >> the existing solutions in the GitHub does not have such data. >> But after the discussion with Nivethika got to know that we should >> provide datastore name using "datasourceName": "<DATA_SOURCE_NAME>" >> under the providerConfig -> config in the widgetConf.json file. >> >> Thank you again for the help given in resolving the issues I had. >> >> On Thu, Jul 5, 2018 at 4:05 PM Niveathika Rajendran <[email protected]> >> wrote: >> >>> Hi Thirasu, >>> >>> The above information is still not added to the docs. >>> >>> The functionality behind this is to create a WebSocket connection to the >>> data-provider endpoint with a required configuration. The >>> documentation @Sajith pointed out has the details on various data provider >>> endpoints and the configurations. >>> >>> You have to do the following steps, >>> 1. Access data provider configurations in widgetConf.json file [1] >>> 2. Use the base widget API to create WebSocket connection. For this, you >>> can use the following APIs, >>> >>> - Subscribe to the endpoint: >>> - syntax : >>> super.getWidgetChannelManager().subscribeWidget(<Widget id>, <Call >>> back >>> method to handle data>, <data provider configs>) >>> - Example: >>> - >>> >>> super.getWidgetChannelManager() >>> .subscribeWidget(this.props.id, this.handleDataReceived, >>> dataProviderConfigs)); >>> >>> >>> >>> - Unsubscribe to the endpoint >>> - syntax: super.getWidgetChannelManager().unsubscribeWidget(<Widget >>> ID>); >>> - Example: >>> - >>> >>> super.getWidgetChannelManager().unsubscribeWidget(this.props.id); >>> >>> >>> >>> @Nisala Nanayakkara <[email protected]> Please add anything I have missed. >>> >>> @Rukshani Weerasinha <[email protected]> Shall we add the above to the >>> documentation, as this will be a blocker to anyone writing custom widgets. >>> >>> [1] mail thread : [SP] [Solutions] Data provider configurations in >>> solution widgets >>> >>> Best Regards, >>> *Niveathika Rajendran,* >>> *Software Engineer.* >>> *Mobile : +94 077 903 7536* >>> >>> >>> >>> >>> >>> On Thu, Jul 5, 2018 at 3:01 PM Thisaru Guruge <[email protected]> wrote: >>> >>>> Hi Sajith, >>>> >>>> Thank you for the reply, but I was trying to create a custom widget, >>>> not from the Wizard. >>>> >>>> On Thu, Jul 5, 2018 at 1:08 PM Sajith Perera <[email protected]> wrote: >>>> >>>>> Hi, >>>>> >>>>> Please have a look on the sample doc: >>>>> https://docs.wso2.com/display/SP4xx/Generating+Widgets >>>>> >>>>> Regards, >>>>> SajithD >>>>> >>>>> On Thu, Jul 5, 2018 at 10:56 AM, Thisaru Guruge <[email protected]> >>>>> wrote: >>>>> >>>>>> Hi, >>>>>> >>>>>> I am looking for a way to retrieve data from a RDBMS to show them in >>>>>> a widget in SP dashboard. >>>>>> >>>>>> I found an example from this link >>>>>> <https://github.com/wso2/product-sp/tree/master/modules/solutions/message-tracer/widgets/OpenTracingSearch> >>>>>> thanks >>>>>> to Nisala, and followed it. But widget is not showing the data. >>>>>> >>>>>> Is there any documentation where I can refer about this ? >>>>>> >>>>>> -- >>>>>> Thanks and Best Regards, >>>>>> Thisaru Guruge >>>>>> Software Engineer >>>>>> Mobile: +94 71 720 9720 >>>>>> >>>>>> >>>>>> WSO2 Inc.: http://www.wso2.com >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> <http://wso2.com/signature> >>>>> Sajith Dimal >>>>> Software Engineer >>>>> Email : [email protected] >>>>> Mobile : +94783101496 >>>>> WSO2 Inc. | http://wso2.com >>>>> lean.enterprise.middleware >>>>> >>>> >>>> >>>> -- >>>> Thanks and Best Regards, >>>> Thisaru Guruge >>>> Software Engineer >>>> Mobile: +94 71 720 9720 >>>> >>>> >>>> WSO2 Inc.: http://www.wso2.com >>>> >>>> >>>> >> >> -- >> Thanks and Best Regards, >> Thisaru Guruge >> Software Engineer >> Mobile: +94 71 720 9720 >> >> >> WSO2 Inc.: http://www.wso2.com >> >> >> > > > -- > Senior Software Engineer > WSO2 Inc.; http://wso2.com > <http://www.google.com/url?q=http%3A%2F%2Fwso2.com&sa=D&sntz=1&usg=AFQjCNEZvyc0uMD1HhBaEGCBxs6e9fBObg> > lean.enterprise.middleware > > mobile: *+94728671315* > >
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