Burn after reading is a simple web app that uses Azure Funtions and Azure Storage to allow users to upload data (files, json, etc.) and retrieve it once. After the data is retrieved a clean up process runs and deletes the files.
You upload your data in the body of a post request to the /api/upload endpoint, the Azure function takes has a blob binding with a random guid which is returned after the request body has been written to blob storage.
When the user wants to retrieve the data again, he makes a get request to /api/download/{guid} where {guid} is the id returned from the post request. The download Azure function also has a blob binding and a QueueClient binding and adds the id of the blob to a queue with a visibilityTimeout of one minute (to allow the download to finish safely), then returns the blob.
Once the item from the previous step appears in the queue the CleanUp function is triggered which then tries to delete the blob by the Id which triggered the function.