cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Slakk
Regular Visitor

PCF component not working in canvas app

Hi, 

 

I just developed a simple pcf map component for Power apps, based on the hello-pcf sample.

 

The component works great in a model-driven app but for some reason it does not work in canvas apps. I do not get any errors in the console, but if I setup the chrome debugger to pause on all thrown errors I do get an error deep within the mapping library complaining that "Promise.finally is not a function". This error does not occur when using the component within a model-driven app. 

 

Are there any limitations to use of custom pcf components in canvas apps vs model-driven apps? 

1 ACCEPTED SOLUTION

Accepted Solutions
DianaBirkelbach
Most Valuable Professional
Most Valuable Professional

Hi @Slakk , 

 

When you said, you are working with ArcGIS, I remembered there was a thead in this forum.

There were a lot of answers, and some of them said, that is working in harness, but not in CanvasApp. Have a look: https://powerusers.microsoft.com/t5/Power-Apps-Pro-Dev-ISV/Power-App-Component-Framework-with-ArcGis...

 

In the thread there is a hint about a conflict with the jQuery version used in Power Apps, and I think the missing "finally" is because of this conflict. Primise.prototype.finally was introduced later (ES2018 , https://2ality.com/2017/07/promise-prototype-finally.html), and jQuery didn't had it.

 

It doesn't solve your problem (except if you can use another map control), but at least you know you are not alone.

Kind regards,
Diana
----------
Please click "Accept as Solution" if my post answered your question so that others may find it more quickly. If you found this post helpful consider giving it a "Thumbs Up."

View solution in original post

9 REPLIES 9
DianaBirkelbach
Most Valuable Professional
Most Valuable Professional

Hi @Slakk , 

 

Can you please post the link for the hello-pcf example.

Possible reasons could be  if you are using IE as a browser. Or mabye it is using pcf features that are not designed for Canvas Apps (like webAPI). 

Kind regards,
Diana
----------
Please click "Accept as Solution" if my post answered your question so that others may find it more quickly. If you found this post helpful consider giving it a "Thumbs Up."

Thanks for your reply Diana! I will try to create a minimal sample component for you. In the meantime I see you mention that webapi is not supported in canvas apps. Does this mean that the pcf component is not allowed to fetch data from REST APIs? The component I'm building is fetching maptiles (images) from a REST-based mapservice.  

DianaBirkelbach
Most Valuable Professional
Most Valuable Professional

Hi @Slakk , 

 

You can fetch requests, but not using the PCF-Features. So you cannot use these ones: https://docs.microsoft.com/en-us/powerapps/developer/component-framework/reference/webapi?WT.mc_id=B...

Do you have it included in the manifest: https://docs.microsoft.com/en-us/powerapps/developer/component-framework/manifest-schema-reference/f... ?

 

Since you have an external service, you've implemented the requests on your own already.
I've mentioned IE since it doesn't support "finally". In the Model-Driven Apps there might be a babel polyfill already there, which is maybe not available in Canvas Apps.

 

Kind regards,
Diana
----------
Please click "Accept as Solution" if my post answered your question so that others may find it more quickly. If you found this post helpful consider giving it a "Thumbs Up."

Sorry for the late response and many thanks for your kind advice. I tried adding a polyfill for finally without any luck. I'm not using the IE browser. Only chrome and edge.

 

Anyway, I've now created a minimal sample component. All is does is that is load a map into a div. Is uses the ArcGIS API for javascript mapping library. This component works in a model-driven app, but not in a canvas app. I would be really grateful if you have the time to take a look. The code is attached to this post as a zip. 

Slakk
Regular Visitor

Btw. I tested just adding a simple use of "finally" in the constructor of the control, just for testing purposes, and the same error occurs (i.e. finally is not a function). It works fine in the testharness, and in model-driven apps, but not in canvas apps. You can test it by adding the following to the constructor of any component: 

 

function testFinally() {
 return new Promise((resolve, reject) => {
    resolve("test")
 });
}
testFinally().then((result) => {
 console.log("Then works");
})
.catch((err) => {
 console.error(err);
})
.finally(() => {
 console.log('Finally works');
});

 

DianaBirkelbach
Most Valuable Professional
Most Valuable Professional

Hi @Slakk , 

 

When you said, you are working with ArcGIS, I remembered there was a thead in this forum.

There were a lot of answers, and some of them said, that is working in harness, but not in CanvasApp. Have a look: https://powerusers.microsoft.com/t5/Power-Apps-Pro-Dev-ISV/Power-App-Component-Framework-with-ArcGis...

 

In the thread there is a hint about a conflict with the jQuery version used in Power Apps, and I think the missing "finally" is because of this conflict. Primise.prototype.finally was introduced later (ES2018 , https://2ality.com/2017/07/promise-prototype-finally.html), and jQuery didn't had it.

 

It doesn't solve your problem (except if you can use another map control), but at least you know you are not alone.

Kind regards,
Diana
----------
Please click "Accept as Solution" if my post answered your question so that others may find it more quickly. If you found this post helpful consider giving it a "Thumbs Up."

Thank you so much for this information Diana! I did not manage to resolve the conflict but I did manage to get it to work in a canvas app by rolling back to using version 3.x of the ArcGIS API for Javascript (instead of version 4.x which I was using). Without your advice I would not have managed to figure this out! Again, thank you so much! 

Hi @Slakk - that's great to hear that you managed to get an ArcGIS JSAPI (3.x) map to appear in a Canvas app. Would you be willing to post a working "hello" map for reference?

anwesh
New Member

Aventham,

were you able to achieve this I am getting empty map object in to the component, but it is working fine in localhost.

 

anwesh_0-1706291329338.png

 

 

Helpful resources

Announcements

Check out the Copilot Studio Cookbook today!

We are excited to announce our new Copilot Cookbook Gallery in the Copilot Studio Community. We can't wait for you to share your expertise and your experience!    Join us for an amazing opportunity where you'll be one of the first to contribute to the Copilot Cookbook—your ultimate guide to mastering Microsoft Copilot. Whether you're seeking inspiration or grappling with a challenge while crafting apps, you probably already know that Copilot Cookbook is your reliable assistant, offering a wealth of tips and tricks at your fingertips--and we want you to add your expertise. What can you "cook" up?   Click this link to get started: https://aka.ms/CS_Copilot_Cookbook_Gallery   Don't miss out on this exclusive opportunity to be one of the first in the Community to share your app creation journey with Copilot. We'll be announcing a Cookbook Challenge very soon and want to make sure you one of the first "cooks" in the kitchen.   Don't miss your moment--start submitting in the Copilot Cookbook Gallery today!     Thank you,  Engagement Team

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Check Out the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community.  We can't wait to see what you "cook" up!      

Tuesday Tip | How to Report Spam in Our Community

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: How to Report Spam in Our Community We strive to maintain a professional and helpful community, and part of that effort involves keeping our platform free of spam. If you encounter a post that you believe is spam, please follow these steps to report it: Locate the Post: Find the post in question within the community.Kebab Menu: Click on the "Kebab" menu | 3 Dots, on the top right of the post.Report Inappropriate Content: Select "Report Inappropriate Content" from the menu.Submit Report: Fill out any necessary details on the form and submit your report.   Our community team will review the report and take appropriate action to ensure our community remains a valuable resource for everyone.   Thank you for helping us keep the community clean and useful!

Community Roundup: A Look Back at Our Last 10 Tuesday Tips

As we continue to grow and learn together, it's important to reflect on the valuable insights we've shared. For today's #TuesdayTip, we're excited to take a moment to look back at the last 10 tips we've shared in case you missed any or want to revisit them. Thanks for your incredible support for this series--we're so glad it was able to help so many of you navigate your community experience!   Getting Started in the Community An overview of everything you need to know about navigating the community on one page!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Ranks and YOU Have you ever wondered how your fellow community members ascend the ranks within our community? We explain everything about ranks and how to achieve points so you can climb up in the rankings! Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Powering Up Your Community Profile Your Community User Profile is how the Community knows you--so it's essential that it works the way you need it to! From changing your username to updating contact information, this Knowledge Base Article is your best resource for powering up your profile. Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Blogs--A Great Place to Start There's so much you'll discover in the Community Blogs, and we hope you'll check them out today!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Unlocking Community Achievements and Earning Badges Across the Communities, you'll see badges on users profile that recognize and reward their engagement and contributions. Check out some details on Community badges--and find out more in the detailed link at the end of the article! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Blogging in the Community Interested in blogging? Everything you need to know on writing blogs in our four communities! Get started blogging across the Power Platform communities today! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Subscriptions & Notifications We don't want you to miss a thing in the community! Read all about how to subscribe to sections of our forums and how to setup your notifications! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Getting Started with Private Messages & Macros Do you want to enhance your communication in the Community and streamline your interactions? One of the best ways to do this is to ensure you are using Private Messaging--and the ever-handy macros that are available to you as a Community member! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Community User Groups Learn everything about being part of, starting, or leading a User Group in the Power Platform Community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Update Your Community Profile Today! Keep your community profile up to date which is essential for staying connected and engaged with the community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Thank you for being an integral part of our journey.   Here's to many more Tuesday Tips as we pave the way for a brighter, more connected future! As always, watch the News & Announcements for the next set of tips, coming soon!

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today! https://aka.ms/PowerUp  

Welcome to the Power Apps Community

Welcome! Congratulations on joining the Microsoft Power Apps community! You are now a part of a vibrant group of peers and industry experts who are here to network, share knowledge, and even have a little fun! Now that you are a member, you can enjoy the following resources:   The Microsoft Power Apps Community Forums If you are looking for support with any part of Microsoft Power Apps, our forums are the place to go. They are titled "Get Help with Microsoft Power Apps " and there you will find thousands of technical professionals with years of experience who are ready and eager to answer your questions. You now have the ability to post, reply and give "kudos" on the Power Apps community forums! Make sure you conduct a quick search before creating a new post because your question may have already been asked and answered!   Microsoft Power Apps IdeasDo you have an idea to improve the Microsoft Power Apps experience, or a feature request for future product updates? Then the "Power Apps Ideas" section is where you can contribute your suggestions and vote for ideas posted by other community members. We constantly look to the most voted Ideas when planning updates, so your suggestions and votes will always make a difference.   Community Blog & NewsOver the years, more than 600 Power Apps Community Blog Articles have been written and published by our thriving community. Our community members have learned some excellent tips and have keen insights on building Power Apps. On the Power Apps Community Blog, read the latest Power Apps related posts from our community blog authors around the world. Let us know if you would like to become an author and contribute your own writing — everything Power Apps related is welcome!   Power Apps Samples, Learning and Videos GalleriesOur galleries have a little bit of everything to do with Power Apps. Our galleries are great for finding inspiration for your next app or component. You can view, comment and kudo the apps and component gallery to see what others have created! Or share Power Apps that you have created with other Power Apps enthusiasts. Along with all of that awesome content, there is the Power Apps Community Video & MBAS gallery where you can watch tutorials and demos by Microsoft staff, partners, and community gurus in our community video gallery.   Again, we are excited to welcome you to the Microsoft Power Apps community family! Whether you are brand new to the world of process automation or you are a seasoned Power Apps veteran. Our goal is to shape the community to be your ‘go to’ for support, networking, education, inspiration and encouragement as we enjoy this adventure together!   Let us know in the Community Feedback if you have any questions or comments about your community experience.To learn more about the community and your account be sure to visit our Community Support Area boards to learn more! We look forward to seeing you in the Power Apps Community!The Power Apps Team

Users online (3,302)