Which middleware runs the reducer when there are two middlewares.

[NimmiW]

This is my code. I was going through this tutorial

https://www.youtube.com/watch?v=DJ8fR0mZM44&index=19&list=PLoYCgNOIyGABj2GQSlDRjgvXtqfDxKm5b

Which middleware runs the reducer when there are two middleware? I have logger and Error middleware. Is there a order or something like that?

[NimmiW]

I am new to redux and react. therefore pls excuse any fault in my question :)

[willrstern]

When you do applyMiddleware(logger, error), that means that the reducer will go through logger then error in order for each change event. either of those can modify the new state or terminate the event by not calling next - in which case, the next reducer never fired.

So, in this case, a logger would log every action and call the next middleware
the error middleware will try a next action and error if it doesn't work, it will log the error and not continue on with next

So essentially, every middleware fires every time. That's why you add the switches in there - so each middleware only responds to the actions that it cares about.

[NimmiW]

Thank you very much @willrstern I got that :)

[willrstern]

Awesome!