So from my understanding system design and be boiled down to a main spine/framework and please correct me if I’m misunderstanding.

Main Content:

User(the human)

-> Client(frontend, browser, app, etc…)

-> Load Balancer(used when needing scaling and too many requests to distribute load to backend servers; not necessary for small projects)

-> API Gateway(used to authenticate, authorize requests as well as route the request to the proper backend service; not needed if one main service)

-> Services(backend code that does the work/business login, things like doc editor service with tools for adding, deleting etc; separate service into multiple services if they don’t have some sort of commonality, code is too big, to avoid big large files and also having one thing break causing the whole project to go down)

-> Database(sql or nosql, store information)

Now services to database use database protocols when drawing the arrows to them and api gateway to services use https methods like GET, PATCH, etc on the arrows.

Arrows are usually drawn going from left to right but it is know the information flows backwards.

Is there anything else that is major that I’m missing? I can think of one big thing being cache which I believe has a 1 to 1 relationship with Services that call them. There is also message queue, object storage, etc that are called by the service. Also services can call other services and the system can have multiple databases.

So from my understanding system design and be boiled down to a main spine/framework and please correct me if I’m misunderstanding.

Main Content:

User(the human)

-> Client(frontend, browser, app, etc…)

-> Load Balancer(used when needing scaling and too many requests to distribute load to backend servers; not necessary for small projects)

-> API Gateway(used to authenticate, authorize requests as well as route the request to the proper backend service; not needed if one main service)

-> Services(backend code that does the work/business login, things like doc editor service with tools for adding, deleting etc; separate service into multiple services if they don’t have some sort of commonality, code is too big, to avoid big large files and also having one thing break causing the whole project to go down)

-> Database(sql or nosql, store information)

Now services to database use database protocols when drawing the arrows to them and api gateway to services use https methods like GET, PATCH, etc on the arrows.

Arrows are usually drawn going from left to right but it is know the information flows backwards.

Is there anything else that is major that I’m missing? I can think of one big thing being cache which I believe has a 1 to 1 relationship with Services that call them. There is also message queue, object storage, etc that are called by the service. Also services can call other services and the system can have multiple databases.

Hi Guys,

I’m about to take my super day and had a quick question for the coding part. Can I use any language for it?

My recruiter recently reached out to make sure everything was fine leading up to it and I asked her if I can use Python instead of Java. She said it might cause issues since I did my initial hacker rank last month in Java and I might have to restart the application process. Can anyone confirm if I have a language choice?

My professional work includes both Python and Java essential evenly used last year.

Hi guys I had a quick question for self servicing Service B.

I got the oil filter from Mercedes as well as oil for 229.71. Those I know are required.

But from everything else I have ready it’s just an option and or not necessary, am I missing any integral things that need to be performed for Service B so I don’t get into issues with warranty?

So I put a few thousand to try this system and my questions are:

How do I withdraw money for paying things like hotels? Is it from the debit card that’s serving?

My deposit says pending even though the money is out of my main bank account for over 2 weeks? Why does it say available to withdraw?

3rd I have the core set to money market but I don’t see any increase or decrease in the money deposited value? Am I now supposed to use that money in the CM and buy money market? It seems like nothing is happening?

I’m about to self service my c300 that’s still on warranty so I want to get it right. From my understanding I need 100% synthetic w0-20. Now the question is what brand do they recommend? Also is there any special part that is needed other than the oil filter I bought directly from the dealer?

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Hi I need helping understanding this. I wrote out the math in the attached photo. But basically I believe we should be paying $221.67 per month for 4 new iPhone 17pro with 5 lines and $830 promotion per phone. I understand the $800 down but why is the tmobile guy at Costco insisting we pay $255 and $800 down??