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![REST API: Adding Data via PowerShell
Each Streaming Dataset has a unique Push URL
Looks like https://api.powerbi.com/beta/guid/datasets/guid/rows
Has an encoded access key parameter as well
Base64 encoded, 64 bytes long
Doesn’t appear to be a string representation of anything special – just bytes
POST to this URL with a JSON string
Needs to be an array of objects that represent each row
Example: [ { “Value”:50 } ]](https://image.slidesharecdn.com/powerbistreamingdatasets-170210225528/85/Power-BI-Streaming-Datasets-7-320.jpg)
Uploaded byGreg McMurray
Power BI Streaming Datasets
The document discusses the introduction and functionalities of real-time streaming datasets in Power BI, which became generally available in January 2017. It describes how to create a streaming dataset, manage data input via a REST API, and highlights the differences in data refresh requirements between dashboards and reports. Additionally, it provides examples of practical applications and notes some challenges and improvements suggested by users.
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Power BI Streaming Datasets
- 1. Power BI Streaming Datasets GregMcMurray Utah Power BI Users Group, February 2017
- 2. Greg McMurray CurrentlyBusiness Solutions Developer at WECC Manager at Aritus Computer Services for 18 years Aerospace, Branding & Marketing, Energy, Healthcare, Software Active in many local user groups Find me online @goyuix https://www.linkedin.com/in/goyuix https://stackoverflow.com/cv/goyuix - top 3% of users
- 3. Western Electricity CoordinatingCouncil (WECC) Non-profit to ensure the reliability of the western interconnection Approved Regional Entity by Federal Energy Regulatory Commission Create, monitor & enforce reliability standards Publish various models and independent perspective Covers 14 western states, 2 Canadian provinces and Baja Mexico
- 4. Real-time Streaming Datasets Preview announced in August 2016 https://powerbi.microsoft.com/en-us/blog/real-time-in-no-time-with-power-bi/ Released to general availability in January 2017 https://powerbi.microsoft.com/en-us/blog/announcing-general-availability-of-power-bi- real-time-streaming-datasets/ Datasets available through REST API or via PubNub Example: Azure Stream Analytics pushes to REST API Optionally store historic values Important Note: Dashboards auto-refresh. Reports require manual refresh.
- 5. Example: Current Loadon Western Interconnection
- 6. Creating a StreamingDataset Login to powerbi.com portal Under your workspace create a new Streaming Dataset This is different than a regular dataset, and isn’t an option there We will create a sample for holding random numbers with the following schema Value : Number Min : Number Max : Number Stamp : DateTime Enable Historical Analysis
- 7. REST API: AddingData via PowerShell Each Streaming Dataset has a unique Push URL Looks like https://api.powerbi.com/beta/guid/datasets/guid/rows Has an encoded access key parameter as well Base64 encoded, 64 bytes long Doesn’t appear to be a string representation of anything special – just bytes POST to this URL with a JSON string Needs to be an array of objects that represent each row Example: [ { “Value”:50 } ]
- 8. Demo: Sending RandomNumbers
- 9. Some Gotchas Dashboardsauto-refresh to show latest data but… Reports need to be manually refreshed There are a bunch of suggestions on ideas.powerbi.com to automate refreshes https://ideas.powerbi.com/forums/265200-power-bi-ideas/suggestions/14950986-add-rest-api- to-refresh-data-sources Streaming charts are extremely touchy – you will break them Issue reported in Sep-2016, Under Review as of October… https://ideas.powerbi.com/forums/360879-issues/suggestions/16418866-streaming-dataset- dashboard-line-chart-bug
- 10. Discussion: What aregood examples? Some common examples: Bulk Electric System (of course!) Temperature Traffic Counters What do these all have in common? Similar values Steady values / changes They also can trigger actions: Change in generation, HVAC, traffic signals