How to detect a file in Azure blob storage from PowerApps

[Aria]

Hi ,

From powerapps I want to detect if a file exists in a AzureBlobSotrage such that I can use it to show  the stautus of  file upload from PowerApps to AzureBlobStorage.

The files are created on AzureblobStorage as shown below:

ForAll(Fotos;
AzureBlobStorage.CreateFile(path;fotoId& ".jpg";foto)
);;

Unfortuantly I can not use a variable to get the information about the uploaded file when I use ForAll(...) , and I can not use the following 
ForAll(Fotos;
UpdateContext({uploadedFile:AzureBlobStorage.CreateFile(path;fotoId& ".jpg";foto)})
);;

[yashag2255 · Accepted solution]

Hi @Aria 

If you want to check if a file exist in the specific container on the Azure Blob Storage, you can use the below expression:

If("PDF File.pdf" in AzureBlobStorage.ListFolderV2(LookUp(AzureBlobStorage.ListRootFolderV2().value,DisplayName = "testt").Id).value.DisplayName,"Exist","Doesnot Exist")

Here, first argument(PDF File.pdf) is the name of my file. testt is the name of container.

Hope this Helps!

If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up. THANKS!

[Aria]

Hi 

Thank you very much for your answer !
I used your suggestion and it solved the problem.

[alkakrishnan]

I tried this if condition and it is not working in some cases, though the file is available in azure blob it is not coming up here, Is there any limitation in picking up data from blob storage.

[2bits]

Hi @yashag2255  @Aria  @alkakrishnan ,

I use this function to get a list of files in a container, but it doesn't return all of the files in the container.

AzureBlobStorage_1.ListFolderV2( LookUp(AzureBlobStorage_1.ListRootFolderV2().value, DisplayName = "customer-request").Id).value.DisplayName

Is there a limit to the number of files that this function can return? 

Please help!!