PI Developer Technologies
Welcome to the
PI Developer Technologies
feedback page!
This forum covers the PI AF SDK, PI Web API, PI OPC DA and HDA Servers, and the PI SQL family. We created this forum to hear your ideas, feature suggestions and feedback. Please suggest your most important features and design change ideas on this site, and vote for your favorite ideas.
Please note that your ideas and comments posted here are visible to all other users.
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Add Options for PI Web API Call Statistics
Add auditing or a view of statistics for the calls or requests done by each individual application. Allow a PI Admin to see which user or application is making a specific call and see how long it takes to complete to monitor performance and potentially resource intensive Web API calls.
61 votesWe are starting to implement performance counters and statistics for PI Web API.
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Allow parameters to be passed to a request body in the Batch Controller
I would like the ability to pass response values from one request into the body of a dependent request using the batch controller to avoid making 2 calls to the PI Web API.
Currently, I can only use Parameters in subsequent URLs, but not bodies.
43 votes
Frank Garriel
responded
The idea still exists on our product backlog, but there are no plans in place to develop and release this functionality at this time.
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AdHoc StreamSet actions fail if there is at least one bad WebId
Currently calling any of the AdHoc StreamSet actions causes the entire call to fail if the request includes at least one bad WebId. It would be better if the response came back successful and only the sub-items with bad WebIds included an error message.
23 votes -
Add a PI Collective member info PI WebAPI controller
As an end-user, I want to be able to see to which PI Collective member I am connecting to. I also want to be able to toggle programmatically from one PI Collective member to the other so I can make sure the informaiton I am seeing is aligned and in synch accross all PI Collective members without going into thick PI clients or through log files.
11 votesThis is a novel idea for monitoring PI Collective health, but there are no plans to add this ability to PI Web API. What advantages do you see in using PI Web API here?
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Add bulk delete methods in the Web API
As a PI Web API user, I would like a simple method to perform bulk deletes of a particular attribute or PI tag. Currently, a bulk delete requires 2 calls. One to retrieve the event I wish to delete and another to delete it.
11 votesWeb ID 2.0 should allow you to compute the WebID of a resource without needing to make a call to PI Web API. With that computed WebID, you can make the single call to PI Web API to delete the resource.
Does this solution meet your needs? Have I understood it correctly?
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Restrict Access to Web API Endpoint by User
As a PI Web API administrator, I would like to natively restrict which users can and cannot see particular URLs and controllers on my PI Web API endpoint.
9 votes -
PI WEB API - Swagger page
It would be great if as an addition to conventional documentation there was a SWAGGER page with short explanation of methods and parameters (including return types, etc.)
8 votes -
Write annotations on archive data via PI Web API
My client is interested in writing annotations to Stream (time series) data via the PI Web API. I know it's possible to pull this data via the ?associations=annotations query parameters but the write feature is missing.
8 votes -
omf endpoint: override type uom in container messages
OMF 1.2 specification includes an enhancement to allow the use of propertyoverrides keyword in container messages.
Request is to add this functionality to Web API OMF endpoint specifically for the uom propertyFor example:
1. device configured with uom, OMF application creates a type specifying that uom.
2 new version of the device changes the uom. OMF application needs to create containers with the new uom, retaining other properties of the type.7 votesThis will be a part of the next feature release of PI Web API.
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Time Context Value Retrieval
Example Scenario:
We want to know the Specific Electricity Consumption (kWh/mt) over a time period (selected by users).
Specific Electricity Consumption = (Electricity Consumption(kWh)) / (Raw Feed Consumed(mt))
Where, Electricity Consumption (kWh) and Raw Feed Consumed (mt) are both attributes with PIPoint data reference, using value retrieval method: TimeMethod = Time Range; TimeRangeMethod = Total; EventWeighted
Then, Specific Electricity Consumption is attribute with Formula data reference, simply: A=Electricity Consumption; B=Raw Feed Consumed;[A/B]
So, on PI Vision, it can display the specific electricity consumption with the correct values. However, if we query through PI Web API for our own webpage, it…
7 votes -
Allow Creation of Acknowledgeable Event Frames
The PI Web API exposes a "CanBeAcknowledged" property when reading Event Frames. However, this property is read-only: it cannot be supplied when creating a new Event Frame or updating an existing Event Frame. I would like the ability to include this parameter when creating an Event Frame.
6 votes -
Provide programmatic interface to manage OMF applications
Enable Create,Read, Update, Delete operations for OMF applications via an API so that the process is standardized and efficient/effective as opposed to manual and error prone, especially for larger numbers of apps.
6 votes -
Support attribute types referencing AF Elements and Attributes
We use attributes to reference elements and attributes extensively to model context and relationships in our AF models. Is this going to be supported in the future? Kind regards, Gregor
6 votesThis item is under review. Currently considering the following behavior for attributes links:
Current behavior:
Error returned: “Unsupported data type: ‘OSIsoft.AF.Asset.AFAttribute’.”
Similar error for AFElement.Change under consideration:
Value link for Attributes of value type “Attribute” returns the referenced attribute’s GET response (“/attributes/[webid]”)
Value link for Attributes of value type “Element” returns the referenced element’s GET response (“/elements/[webid]”) -
Expose Calculation.PercentTrue
PercentTrue is missing in the WebAPI. Would you consider adding it? For some context, I come from here:
https://pisquare.osisoft.com/message/115587-re-calculation-percenttrue-is-missing-on-the-webapi
5 votes -
Allow subscribing/unsubscribing to attributes on existing channel connection
The channel/websocket feature of PI Web API would be more useful if it was possible to subscribe/unsubscribe to attributes on an existing channel connection. Currently you have to open the connection with all the WebIds you want in the resource URL. If you want to change which values you are receiving, you would have to close the connection and open a new one. Adding this new feature would also solve issues with maximum URL length limitations.
5 votesThis is an issue we definitely need to address for both the reasons you suggested. We should be able to add and remove attributes while a channel is open. We also need a mechanism for signing up for large numbers of WebIds when the list would be too long for a URL.
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Annotate Elements with Web API
Add functionality to annotate AF Elements using Web API.
5 votes -
Support Type updates on PI Web API OMF ingress
Support Type updates on PI Web API OMF ingress
4 votes -
PI Web API OMF send to multiple PI Systems
I would like to be able to setup the PI Web API OMF endpoint to point to multiple PI Systems, so that way it is easy to send from this single instance to different production systems or to our development and production environments concurrently
4 votes -
Rebuild Index is not working as expected
In the https://pivision-us.oxy.com/piwebapi/admin/search/database.html page the Rebuild Index button does not work. It should allow the pi vision administrator to immediate re-indexing of individual AF database at the time without affecting the usability of the others.
4 votes -
Add support for AFElement Versions
Add support for AFElement versions to PI Web API.
1. Create a new Element Version by defining the effective date and an optional version comment. 2. Add Get and Find methods which support querying AFElements by setting a QueryDate.
See also https://pisquare.osisoft.com/message/122510-re-how-to-create-a-new-af-element-version-with-pi-web-api and https://pisquare.osisoft.com/message/590274 votes
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