create a retry function in ruby

To create a retry function in Ruby, we can use a combination of loop and rescue statements. Here's an example:

main.rb
def retry_function
  attempts = 0
  begin
    # Code that might raise an exception goes here
    puts "Attempting operation..."
    result = some_operation_that_might_fail()
    puts "Operation successful!"
  rescue
    # Handle the error and retry
    attempts += 1
    if attempts < 3
      puts "Operation failed. Retrying..."
      retry
    else
      puts "Operation failed after 3 attempts. Exiting..."
    end
  end
end
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In the above code, we define a function retry_function that attempts a certain operation that might raise an exception. Initially, we set the attempts counter to 0.

We then wrap the code that might fail in a begin block and rescue any exceptions that are raised. If an exception is raised, we increment the attempts counter, check if it's less than 3 (you can set this to any number of retries you want), and retry the operation using the retry keyword.

If the operation succeeds, we print a success message and exit the function. If the operation fails after 3 retries, we print a failure message and exit the function.

You can modify this code to suit your needs, including tweaking the number of retries, the type of exceptions to rescue, and the messages to print.