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.

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  1. 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

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    1 comment  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We have reviewed this idea, and it’s not something we plan to implement at this time. Even though we are declining this idea for now, it is still open to comments. We do want to hear your opinion. Thank you for the feedback, and please, keep sharing!

  2. Implement a checkpoint system for index crawls

    When the crawler fails on an incremental crawl, the index search must perform a complete rebuild of the index. It would be beneficial for there to be a way to revert to a previous built index just prior to the failed incremental crawl so that the index file is available. This is particularly useful for large data sources that take hours or days to crawl before they're usable again.

    30 votes

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    2 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    Now that PI Vision 2020 has been released and no longer uses the crawler, this work is now unnecessary. Therefore the status is updated to declined.

  3. 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

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    3 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We have reviewed this idea, and it’s not something we plan to implement at this time. Even though we are declining this idea for now, it is still open to comments. We do want to hear your opinion. Thank you for the feedback, and please, keep sharing!

  4. Tools to assist in configuring and testing Kerberos delegation

    As a PI Administrator, I need assistance configuring and testing Kerberos delegation, so that I can access the full functionality of the products without exposing my system to potential threats.

    19 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →
    DECLINED  ·  Frank Garriel responded

    Configuring Kerberos continues to be difficult and important. While testing the tools that were in development, we found it was unable to reduce the difficulty in configuration.

  5. Create PI Web API performance counters to monitor the crawl state of various databases

    As an PI administrator I need to monitor the health of the index files created by the PI Web API Crawler. In particular, if the last crawl date has not been updated recently or other errors show up. This is currently done by manually visiting the PI Web API database page. A performance counter that reports things like "the number of databases who have not been updated in 1 hour" or  "the number of databases in error" existed, we could store that info in tags and act on the crawler getting in a bad state in a proactive manner.

    15 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    Because the most common client for this application, PI Vision, no longer uses the PI Web API Crawler as of the 2020 release, this idea is declined.

  6. 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 votes

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    2 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    While we appreciate the interest the community has for this suggestion, we have decided to decline this item in favor of other high priority work. Thank you for your feedback, and please continue sharing suggestions for how we can improve the PI Developer Technologies for you!

  7. 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 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    While we appreciate the interest the community has for this suggestion, we have decided to decline this item in favor of other high priority work. Thank you for your feedback, and please continue sharing suggestions for how we can improve the PI Developer Technologies for you!

  8. Store index files somewhere other than the program data folder

    As a PI system administrator I want to specify where search index files are stored or make sure that the index files are not consuming space on an OS drive , so that I can manage/optimize the disk usage on my server machine.

    11 votes

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    1 comment  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    Now that PI Vision 2020 has been released and no longer uses the search index, this work is now unnecessary. Therefore the status is updated to declined.

  9. 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

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    1 comment  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We have reviewed this idea, and it’s not something we plan to implement at this time. Even though we are declining this idea for now, it is still open to comments. We do want to hear your opinion. Thank you for the feedback, and please, keep sharing!

  10. 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

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We are declining this item as we don’t feel it’s the right fit with our overall product strategy. Thank you for your feedback, and please continue sharing your thoughts on how we can better serve you.

  11. Schedule PI Web API Crawls

    The customer would like the ability to schedule crawls for a specific AF database (it's quite large), so that crawls don't interrupt users who need to access the elements in the PI Vision search during their working hours.

    7 votes

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    2 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →
  12. Service to find changes in the PI System

    As a programmer, I want to be able to use the PI Web API to find out about changes in the PI System. This mean Elements, Templates, Attributes, Event Frames and PI Point configuration changes.

    7 votes

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    1 comment  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    This feature is not a priority at this time. We will continue to evaluate the use case for this capability and update this thread if the status changes.

  13. 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

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We are declining this item as we don’t feel it’s the right fit with our overall product strategy. Thank you for your feedback, and please continue sharing your thoughts on how we can better serve you.

  14. Support multiple entries for nameFilters.

    We would like to GET elements/id/attributes?nameFilter=attr1name;attr2name;attr3name - like an OR statement in SQL. This would be consistent with selectedFields=webid;path;name

    Currently we would have to either make more or heavier batch calls, or micromanage with categories, or strategically rename attributes to allow wildcard nameFilters like attr?name above.

    Kind regards, Gregor

    6 votes

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    2 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →
  15. 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 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We have reviewed this idea, and it’s not something we plan to implement at this time. Even though we are declining this idea for now, it is still open to comments. We do want to hear your opinion. Thank you for the feedback, and please, keep sharing!

  16. 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

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    1 comment  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We have reviewed this idea, and it’s not something we plan to implement at this time. Even though we are declining this idea for now, it is still open to comments. We do want to hear your opinion. Thank you for the feedback, and please, keep sharing!

  17. 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 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    While we appreciate the interest the community has for this suggestion, we have decided to decline this item in favor of other high priority work. Thank you for your feedback, and please continue sharing suggestions for how we can improve the PI Developer Technologies for you!

  18. Annotate Elements with Web API

    Add functionality to annotate AF Elements using Web API.

    5 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    While we appreciate the interest the community has for this suggestion, we have decided to decline this item in favor of other high priority work. Thank you for your feedback, and please continue sharing suggestions for how we can improve the PI Developer Technologies for you!

  19. 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/59027

    4 votes

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    3 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    We are declining this item as we don’t feel it’s the right fit with our overall product strategy. Thank you for your feedback, and please continue sharing your thoughts on how we can better serve you.

  20. Return Partial Results From Event Frame Search in PI Web API

    Currently when searching for event frames, a 400 error is returned if not all elements in the search exist.

    piwebapi/eventFrames/search?databaseWebId=WebId&Element:IN("\server\AssetSwap\Site2\Asset1";"\server\AssetSwap\Site2\Asset2"

    This is cumbersome especially in the case of asset swapping in PI Vision when parent elements could contain variable child elements. For any parent element that contains less than the max child elements, a 400 error will occur when searching for event frames for related parent elements.

    4 votes

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    1 comment  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

    While we appreciate the interest the community has for this suggestion, we have decided to decline this item in favor of other high priority work. Thank you for your feedback, and please continue sharing suggestions for how we can improve the PI Developer Technologies for you!

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