Have you ever worked with pipelines in Laravel?!

Probably you have heard it while having an interview?

It has lots of use cases and one of its usage is middleware implementation in its kernel.

I'm going to write about pipelines and its design pattern.

thread 🧵

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First of all Pipelines in Laravel are implemented based on chain of responsibility design pattern.

In chain of responsibility which is a behavioral design pattern we pass data to receivers and this receivers implement a specific interface that has a handler method.
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Handler methods may deal with the passed argument and pass it to the next handler.

read more about the design pattern here :

https://t.co/XrJKXecyTv

Let's go for the main part :
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Imagine we want to implement a twitter bot that gets some tweets around the trends and filter the words that we don't wanna show finally send as a new tweet from our bot.

About the filtering part, if it was me, I would implement it with pipelines.

Why?!
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Currently I know exactly what words should be filtered but what about the future?! What if I want to add more filters, I will have to modify the source code and add more switch, if else statements, etc.

I want my code to be robust and maintainable keeping SOLID principles.
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So I'm gonna use pipeline like this (picture) :

First I will have my initial filters and also give the ability to myself or other developers to add more filters without even seeing the code.

See the picture and lets go deeper and check the main interface and pipelines 😎
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I have defined a contract for all of my filters, every new filter and existing filters must implement this interface and implement the filter method

As you can see in the previous picture we gave our method name "filter" passed to via()

Nothing more let's go for filters
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This is one of the filters we have implemented as you can see everything is clear filter method gets an argument called $content which is the text we wanna filter and when we modify the content and remove bad words it calls the next receiver from pipelines filters we defined
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That's it all.
This is the pipeline design pattern we have in Laravel.

As you can see there are a lot of advantages using this design pattern having SOLID standards.

But sometimes it's better to keep things simple when our program is not that big and you are alone...

More from For later read

Humans inherently like the act of solidarity. We are social beings. We like to huddle up and be together.
They used this against us.
They convinced us that it was an act of solidarity to flatten the curve, to wear a mask for others, to take the vaccines for others,


and to reach #covidzero for others. They convinced us that this was for the greater good of society.
In reality, this couldn't be further away from the truth. They have divided us and broken the core structure of our society. They have dehumanized us with their masks.

They set us against each other into clans on opposite sides of a spectrum. They have turned us into aggressive beings fighting for our survival. Some of us fear harm from the virus, others fear harm from the vaccine, and yet others fear harm from the attack on our civilization.

We are all on a flight or fight mode. We are all operating under the influence of fear. We must collect ourselves and reflect on what has happened over the last year.
How is this for the greater good of society?

They used a tactical warfare strategy against us.
'Divide and conquer'.
We fell for it.
Now we must become aware of it and fight back.
We must reunite. We must find true solidarity to save our world. To free ourselves. To regain our autonomy.

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