This scenario uses a Logic App trigger to move a file from SharePoint into Azure Blob storage.
- Logic apps currently has a input limit of 105 mb.
- Most connector uploads will timeout after 2 minutes as logic apps has a limit of 2 minutes on synchoronus activities.
Utilizing durable functions we can use a Async HTTP polling pattern where the Logic App will send a request to the Azure Durable Function, the request will return a 202 "Accepted" status to the Logic App in addition to a url used for polling and checking the completed status fo the file upload.
#Deployment
A Github Action in this repository can deploy the durable function to an Azure Subscription or alternativley deploy the code manually to Azure.
To utilize the Github Action Deployment
- Clone Repository
- Create a service principal and add it as a GitHub secret
- Run the "Deploy Infrastructure and function code" and update any of the defaults (optional)
The scenario is desinged for SharePoint but the functions work using a file Url as input and will work as long as the managed identity created in deployment step 2 has access to the resource.
The Deployment creates the following resources
- Storage Account (and Blob Container)
- App Service Plan
- Function App with deployed Durable Function
- Permissions for Function App include Graph API permission for Site.Read.All and Azure role of 'Storage Blob Contributor'
#Sample Logic App Usage
- Create a Logic App in your Azure Subscription (Consumption Tier)
1.Start from a blank Logic App
1.Select a trigger for the logic app, in this case the trigger is when a file or item is modified.
1.Update the trigger with the site address and document library
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Add a new step and select Azure Functions
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Select the function from the avaiable function dialog
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Select the 'Swagger Actions' tab
1.Update the action with the 'Link to item' property from the previous action in dynamic content
