The durable serverless way of implementing CSV imports

The following diagram shows all the steps required to build the solution using serverless architecture:

Figure 8.1: Durable Functions—architecture process flow

Here are the detailed steps pertaining to the preceding architecture diagram that will be implemented in this chapter:

1. External clients or applications upload a CSV file to blob storage.
2. A blob trigger gets triggered once the CSV file is uploaded successfully.
3. The durable orchestrator is started from the blob trigger.
4. The orchestrator invokes Read CSV - Activity Trigger to read the CSV content from blob storage.
5. Orchestrator invokes Scale RUs - Activity Trigger to scale up the Cosmos DB collection's throughput so that it can accommodate the load.
6. Orchestrator invokes Import Data - Activity Trigger to prepare the collection to bulk import data.
7. Finally, Import Data - Activity Trigger loads the collection...