Link Processes
Look into processes linking with the help of a banking web application.
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Process link
Processes in Elixir can be linked together, and Task processes are usually linked to the process that automatically started them. This link is called a process link. Process links have an important role when building concurrent and fault-tolerant applications. They help us immediately shut down parts of the system or even the whole system when needed. This prevents the application from running in a bad state. The following figure shows three processes linked together:
As we can see, “Process C” crashes. Imagine that “Process B” continues running, unaware of the crash. It expects to receive a result from “Process C” and report back ...