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00:00:00

Hello everyone, I'm back in touch again and

00:00:07

today I decided to talk to you about

00:00:09

pure architecture, they asked me to talk

00:00:14

a little, they need to talk a little,

00:00:18

they talk a little, go to the channel, presentation and

00:00:20

let's look at it in code,

00:00:22

let's go,

00:00:24

so

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you all know your different system, your

00:00:29

architecture, yes, we have ours they are one

00:00:33

by one 1 2 3 4 5 6 and if there is a lot there then

00:00:37

antipathy appears lasagna climbing code that’s why

00:00:40

we don’t overdo it with piles

00:00:44

434 ours about ours without jumping over each

00:00:48

other theirs exchange data with each

00:00:50

other and there’s a whole story on the interfaces

00:00:53

but expanding the functionality sometimes

00:00:56

leads to the appearance of additional

00:00:58

abstractions, and as you all know very well,

00:01:01

any problem can be solved by

00:01:04

adding an

00:01:05

additional abstraction, except for the problem of a

00:01:08

large number of abstractions and you cannot

00:01:13

solve the top ones by adding additional

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abstractions, so what is good about the salty

00:01:18

system, it is clear why the application

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was written by it, and

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I, too, very much I didn’t dream of

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using my system, this is generally the first

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type of architecture that I started to

00:01:32

promote and use myself,

00:01:35

how much I liked it and it appeared

00:01:38

due to the fact that I pervertedly understood

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mvc mvc mvt this is the whole history of java

00:01:44

spring and I misunderstood everything we carry in

00:01:48

c how it works and in the end how I

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understood it when it’s better than mvc in fact

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it turned out to be a layered mvc system close

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to this close but not about that until the

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mvc pattern module controls the rest of the system

00:02:03

it’s just perfect, that is, from the point

00:02:05

of view of writing simple applications yes, and

00:02:07

average, and even complex,

00:02:10

it’s perfect, but we’re

00:02:13

talking about enterprise, well, development, and

00:02:17

we’re talking about printer, idle development, and when

00:02:19

we talk about

00:02:20

the corporation before enterprise, where I

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spent a large number of years of

00:02:27

years of my life, a

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hexagonal figure appears, an

00:02:33

ideal figure

00:02:35

that’s exactly the same as mine on architecture

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it is also sometimes called

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port and adapter architecture,

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it is called that way because all of their for

00:02:46

work applications domain they are connected

00:02:50

only to each other, not just to each other as in their

00:02:53

own on the system, but using the so-

00:02:55

called ports and adapters

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ports adapter are the guys who

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help exchange data between

00:03:02

layers they abstract themselves from each

00:03:05

other and

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lose the

00:03:07

code to expand the functionality has become much more

00:03:10

convenient in expanding the adapter above and the

00:03:13

methods of our buttermilk and flag become

00:03:16

much more convenient and you will see on

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this you would have a hexagon yes only one two three

00:03:22

4 5 5 faces but no maybe six

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maybe seven maybe as many

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as you need I

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dictate

00:03:34

everything in it is part of the application

00:03:38

framework base

00:03:42

some more outside the system 2 not on the ground

00:03:45

Sam with it's all outside it's all it's not

00:03:48

inside it's all outside and uses

00:03:51

its files to yes it connects to from

00:03:54

my frolovka

00:03:56

at this point, this is the meaning of such a system

00:03:59

and we finally come to what is

00:04:02

correct, pure architecture,

00:04:05

pure architecture in general was invented

00:04:08

for a different type of application, it’s not

00:04:11

just client-server

00:04:12

online stores, it’s not some

00:04:15

simple story, it’s more an application

00:04:18

for an enterprise, and for a large

00:04:20

enterprise that is constantly

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developing,

00:04:25

constantly developing and acquiring new

00:04:28

functionality,

00:04:30

each layer and then for its own because

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purely architecture took its toll on the

00:04:37

architecture took hexagonal

00:04:39

architecture

00:04:41

folded

00:04:43

not loudly slammed I hope mixed

00:04:46

shake but do not mix that is, together

00:04:49

with the military plus the hexagonal one gives us a

00:04:50

pure architecture means each layer

00:04:54

regulates how each other

00:04:56

can interact with it.

00:04:58

The concept of ports is taken from the hexagonal

00:05:02

type of tour, each layer is responsible for

00:05:05

determining how

00:05:07

each

00:05:09

next outer layer will interact with it, until

00:05:12

this is very clearly visible in I don’t set the picture in the

00:05:14

lower right corner of this diagram to redraw diagrams from

00:05:17

the Internet, but

00:05:19

why

00:05:20

look here buttermilk both posts

00:05:23

have the same color and what does one color mean

00:05:26

for anything in the same layer,

00:05:29

that is, the controller communicates with the

00:05:31

president using Gaussian now we let's reveal the

00:05:33

meaning of all these words, the controller

00:05:36

communicates with the presentation using these

00:05:38

interfaces, the

00:05:41

response of the interface

00:05:42

and they are all in one case views and

00:05:45

what's more, it's

00:05:47

funny funny now

00:05:50

we'll reveal it all and so on the border of each code

00:05:54

on the border of each layer there should be

00:05:57

interfaces

00:05:59

interfaces stages you

00:06:02

the same ones

00:06:05

through which they exchange

00:06:07

information,

00:06:09

now let's talk a little about

00:06:11

their own

00:06:12

interests,

00:06:14

banal kvass and objects, domain

00:06:17

areas of the subject area for the order use

00:06:23

you spaces, and here it is also important to understand yours, this is a

00:06:27

large set of many classes of different

00:06:30

classes, not that even we are only

00:06:33

narrow or only entity no

00:06:38

many many classes

00:06:41

not only

00:06:43

entity Ilisky

00:06:44

I’ll go indesit iwc the thesis can be combined

00:06:48

in fact to simplify

00:06:51

this whole story and say that this is your

00:06:53

business logic domain your own just yes we

00:06:57

take views case interests said that

00:06:59

this is on we

00:07:01

simplified

00:07:03

controllers presenters gay your little

00:07:05

green one that is with the pilot

00:07:08

entities game pictures news case with you

00:07:10

figured out

00:07:12

controllers presenters battles

00:07:16

controllers for all those same controls you

00:07:18

when you know you in cf springen in

00:07:21

django

00:07:22

where else is there a handler in a year this is the

00:07:27

control

00:07:30

presenter it’s the same

00:07:33

we throw it out ourselves a word from our vocabulary

00:07:35

not them does not swarm I don’t understand I can’t

00:07:38

understand in control

00:07:40

gateways gate you are not bad well there is

00:07:44

such a gateway pattern but if we want to

00:07:47

simplify right now and say that we are giving away this mouse

00:07:49

wedge for the little ones the

00:07:53

gateway is a repository it’s

00:07:55

simpler

00:07:58

but not quite true, but in short,

00:08:02

because in gateway there may be a little

00:08:06

more document space, there may be a login method

00:08:10

battle

00:08:11

with the torus database and method one may be

00:08:17

japa for now, for the sake of understanding, let’s

00:08:20

simplify

00:08:21

it, say that we are replacing gateway with

00:08:27

repository,

00:08:29

but the outermost layer is the outermost

00:08:33

database third-party service and I

00:08:36

haven’t changed anything, accordingly, this is

00:08:39

how the arrows lead from the outer layer, this is how the

00:08:42

data flow goes, that is,

00:08:44

just like in a hexagonal architecture, it

00:08:47

also goes there this way, that all data leads

00:08:50

externally to entities,

00:08:53

well, that’s how it

00:08:56

sounds in principle,

00:09:00

really complicated, its own ports and interfaces

00:09:06

in fact, when we write a simple

00:09:10

application,

00:09:11

it looks, first of all, cumbersome

00:09:15

because a lot of all sorts of structures are

00:09:18

created that are superfluous, this is called engineers,

00:09:22

not many wrote that the development of a

00:09:24

notes system of eight micro services

00:09:27

there are 4 databases and other things

00:09:31

[music]

00:09:33

this is Virginia here is the development of a simple

00:09:37

application using the default

00:09:39

clean architecture, yes, this is how it is given,

00:09:42

this is aver engineers, but you and I are mouse

00:09:47

programmers, you are

00:09:49

a programmer, and therefore you can fix a kettle

00:09:52

and can simplify wedge

00:09:54

architect

00:09:55

because after all, any architecture

00:09:58

should help and not hinder

00:10:01

even the horns of the master said in the video in the

00:10:05

original video to present he

00:10:08

said that the number of layers can

00:10:10

change both more and less

00:10:14

and in general he identified three

00:10:19

simple rules that can be based on

00:10:21

which you can remake this picture

00:10:23

remake and tag there this is the original

00:10:25

picture remake this entire grove names

00:10:29

and those who to leave its advantages but

00:10:31

remove its complexity and

00:10:33

these rules sound like this: the

00:10:36

first rule is the rule for crossing

00:10:39

the boundaries of layers to from green 40 times

00:10:45

the boundaries cross models

00:10:48

that are essentially a

00:10:50

cartridge do that runs a big data

00:10:56

seasoning your business logic does not depend on

00:10:59

from what not from any other layer,

00:11:04

here to panda jackson only the

00:11:06

interface only the interface

00:11:09

and

00:11:10

here we get the third rule of the

00:11:14

priority rule of the internal layer, that is, it

00:11:16

logically follows from 2

00:11:20

its business logic determines the interface

00:11:23

through which the

00:11:28

interaction of business geeks

00:11:31

with the outside world is carried out

00:11:34

from the outside blueberry systems

00:11:38

retrieving the system from the database for which

00:11:40

year I pause to make it clear that is,

00:11:45

its interface

00:11:48

is located in

00:11:49

its own business, it determines the interaction of

00:11:54

business logic with the outside world,

00:11:56

this is no longer a layered system for you, a

00:11:58

security system, so range and

00:12:02

learn,

00:12:03

yes, we have remembered 3 rules, remember this

00:12:07

whole story let's try

00:12:09

to look at this scott

00:12:15

yes we are

00:12:17

all moving into the year in Galens here

00:12:21

we are creating a new house project sea life

00:12:28

library go 16 5 let's new let's let's come

00:12:33

to you fresh

00:12:36

17 30 17 fire is

00:12:45

born when she plays like that from above it

00:12:48

starts written then Why

00:12:50

be surprised?

00:12:52

First of all, let’s create the default structure of the

00:12:55

go project, which is usually

00:12:58

considered at the moment right there to be a

00:13:01

good structure,

00:13:04

what the heck, I’ll go through it briefly, this is

00:13:07

the family, the entry point is the internal

00:13:10

internal logic,

00:13:12

the page inside, the

00:13:14

external history, that is, which can

00:13:18

move from projects to the project without

00:13:20

any- or changes in

00:13:22

the family and pulled as there was still to

00:13:28

give like all families enter well for now

00:13:32

but like everything else nothing else is needed

00:13:36

that is

00:13:38

not yet needed

00:13:41

ok all Cindy we are creating we have one

00:13:44

application - we should create a moringa

00:13:48

pour we would pump up the

00:13:51

punk mental everything

00:13:55

here, this will be the entry point,

00:14:01

yes,

00:14:05

I don’t think that we will develop

00:14:07

this project, yes, probably not, we will not

00:14:10

work, but we

00:14:13

will now try to describe the

00:14:15

architecture of the folders according to the wedge architecture

00:14:19

will receive the architecture and so we will start with

00:14:23

where we will start with the very the main thing with

00:14:26

the replacement of the area and escapes

00:14:31

and so that we have a banana was a reference to

00:14:34

I now dragged the wedge architecture

00:14:36

here

00:14:37

and did it like this and this is how you and I will

00:14:40

write our own code directly to the picture

00:14:42

and

00:14:44

together through life together before you

00:14:48

and even sketches are what your application

00:14:51

can do

00:14:52

register the user create an

00:14:55

order place a subscription and so on

00:14:58

you can simplify it a little more, here’s how we

00:15:02

simplified the gateway to a repository, you

00:15:05

can also simplify it and narrow it and say that

00:15:08

these are services

00:15:09

just services user service service and

00:15:15

also part of the water workers can be put in the entity

00:15:18

for example the order itself can calculate your

00:15:22

cost, well, you need to sort through the products

00:15:24

within yourself, take the cost of the product

00:15:27

perfectly, and this will correspond to the

00:15:29

empaths pattern domain fashion, that’s why

00:15:33

we put sketches and entities in a

00:15:36

single layer and

00:15:38

this single layer will be the model

00:15:41

domain fashion, that is,

00:15:44

domain take the business logic for power so

00:15:49

we will distribute it according to

00:15:52

that is, it will be entities and services we

00:15:55

go the library the essence is simple there are

00:15:57

books from the user users

00:16:01

come the library take the book leaves

00:16:05

read her book at that time

00:16:07

busy comes return all just the

00:16:10

basic entities which are correct the user

00:16:12

ebook let's go create folder user enter well, let's

00:16:15

create a folder beech

00:16:18

now here we need to designate

00:16:21

the entities of the domain area

00:16:24

but okay let it be Pallas's cat

00:16:27

and here we describe

00:16:33

in the book what he left services let it

00:16:36

be ai di Anthony Mann turn away I'll

00:16:38

arrive listed okay let's

00:16:41

bother with them and her Aide

00:16:44

string

00:16:46

name is The book has a

00:16:53

vintage year of publication and the author used it

00:16:56

headlong,

00:16:57

well, the book can be occupied

00:17:01

and the owner, that is,

00:17:04

who took the book,

00:17:07

so

00:17:09

naturally, here you can seat

00:17:12

Jason tags Silva in one movement each

00:17:15

conveniently, in principle, everything is

00:17:20

exactly the same kvass we create a user and

00:17:22

that too there will be a close model,

00:17:28

I’m writing a class that we will have a

00:17:32

string and with

00:17:34

[music]

00:17:36

name it will have had how come it

00:17:38

seems to the mouth it will have some kind of address there

00:17:42

will be some kind of e-mail

00:17:45

and it will be some age which is not for all

00:17:47

people can we have a library, oh, we have a hard

00:17:50

library, all of them are ours, two of them, they are

00:17:54

aggregated in models, so beech user,

00:17:58

I assign a service to the file

00:18:02

just a service

00:18:04

structure

00:18:06

service

00:18:07

but in order we will make a structure service we do not

00:18:10

export and we will create an

00:18:18

interface

00:18:19

service exported exported

00:18:23

does not export

00:18:26

so this is what the service will be like for us methods

00:18:28

to possess

00:18:30

grandfather book

00:18:33

buy aiden

00:18:37

any type

00:18:40

and string of this

00:18:44

but now on the context

00:18:47

and the

00:18:48

tape further what else do we have with books you

00:18:51

can

00:18:53

get all books

00:18:56

text

00:19:00

pagination you can give it here to me you

00:19:07

can select and vanilla kvass are not

00:19:09

important somewhere around the onion then about

00:19:12

not methods, what else can be reduced, it goes

00:19:18

without a fight digital books, we can take the book in

00:19:24

several places upsala business logic

00:19:27

with we can write methods here,

00:19:31

yes, we have beech attack

00:19:35

in the villages,

00:19:38

you take the book,

00:19:40

book and eat bizet

00:19:44

and in bizet then

00:19:47

[music ] a

00:19:50

block of meringue and everything

00:19:53

and everything is good that is, when you take a book of the day

00:19:55

you can’t take a book you can’t in all

00:19:58

other cases be a una equals gender on the

00:20:02

BBC equals

00:20:07

eternum

00:20:10

they took the book or

00:20:11

something I books

00:20:15

and the book belongs to someone or she there should already have

00:20:17

been then exception errors

00:20:19

error book is bizet

00:20:22

just like this the same method can be placed

00:20:25

in the service for work

00:20:27

ok very structure of the service it

00:20:31

will contain

00:20:32

such a service

00:20:35

it will contain the most important thing

00:20:39

put this

00:20:42

and here there will have to be an interface this

00:20:47

beech or I can’t even describe the watchman,

00:20:51

that is, this is the interface now we will

00:20:54

find it passives, let’s create it more precisely and

00:20:56

create it here go stores

00:21:02

and now let’s create cost worth

00:21:05

this is our gateway repository

00:21:10

here everything is simple it’s not funky and the time

00:21:14

this is the interface this is the watchman

00:21:18

I’m naturally and naturally you groan, here

00:21:21

he is, he

00:21:22

will have to be here right away here and here

00:21:25

what are the methods of the hetman before

00:21:28

and

00:21:29

string and get up

00:21:33

nothing at all on the context everywhere you can

00:21:35

add up to the limit in the set

00:21:39

you can twist

00:21:41

additionally

00:21:43

become another credit

00:21:46

bow

00:21:47

bow

00:21:51

elites

00:21:53

there are individual lions regarding the cartridges

00:21:56

data access magic and the repository has

00:21:59

articles that data access of jack is dead,

00:22:03

long live the repository, and there is an article

00:22:05

that the repository is dead, long live

00:22:07

data excess of and

00:22:10

these disputes have not subsided yet, by the way, I do

00:22:14

n’t know who is mixed in, I like

00:22:16

this flower, but more and more often you

00:22:19

could probably do this understand from my video

00:22:20

what I use gave they repositories are

00:22:24

more important

00:22:25

but you can use mix

00:22:28

usually I love it

00:22:31

again this is not pure architecture it is

00:22:34

inferior pure architecture because the

00:22:39

concept of pure architecture is completely taken and

00:22:41

used for a simple from a simple

00:22:44

library this is not the most complex

00:22:47

application in the world

00:22:48

they use architecture this is oral

00:22:51

for some how disgusting it is in an

00:22:54

application that takes into account the collection of oil

00:22:57

from all the top Gazprom and Rosneft

00:23:01

someone else there plus a manager from

00:23:04

analysts plus all sorts of history that’s

00:23:06

good pure architecture maybe you can

00:23:10

take it maybe it’s all the

00:23:12

watchman we have determined that we need such a machine tool,

00:23:15

so we use it in the service,

00:23:18

in turn, we can now

00:23:23

why is this happening

00:23:24

now we can create print the

00:23:31

same methods,

00:23:35

well, all that remains is we can eat

00:23:39

something like that, something like that, work like that

00:23:44

and the

00:23:47

herd goes the letter we go returns

00:23:51

a link on the side the

00:23:54

array responds

00:23:57

something like this,

00:23:59

let's bring killed okay, we think that

00:24:02

we rotate this too, well, that means an array of links

00:24:06

for us

00:24:07

this and don't rotate anything by the way, the

00:24:11

previous error,

00:24:15

they all should return an error, it

00:24:17

doesn't matter, we're not talking about that yet,

00:24:19

but not yet it’s not the service that’s missing,

00:24:22

but here there’s not enough that will be

00:24:25

expected to cost and return

00:24:31

the service

00:24:34

to feel and

00:24:36

the interface will rotate here,

00:24:42

yes of course he doesn’t want to

00:24:43

return yet because we still need to

00:24:46

do this like this

00:24:49

and now he’s returning and here get

00:24:52

all

00:24:54

and what he wants is

00:25:01

that approximately, that is, our service depends

00:25:05

on the Sturridge interface, well, I’m

00:25:08

not a person at all, I thought you

00:25:09

wrote it that way, that is, you just don’t get angry, it’s

00:25:11

called as it was described, and

00:25:13

now you and I have created an interface for

00:25:16

our business and we have already determined

00:25:20

the interface that we need, yes, where

00:25:23

is the interface in the business service we have

00:25:26

defined our business logic interface for

00:25:29

interacting with the database this is the

00:25:31

interface for

00:25:32

our our

00:25:34

service

00:25:36

our sketch

00:25:38

this is narrow

00:25:40

I give space

00:25:43

well here you can make Facebook methods

00:25:45

so on and so forth here it is this

00:25:47

video we smeared Iraq a little so about

00:25:51

domains and models for services

00:25:54

here, but these are ours in Besançon

00:25:58

and

00:25:59

so with users it won’t be the same,

00:26:01

otherwise we will be it will be for a very long time everything

00:26:04

even nothing has changed here

00:26:07

the user will log in to Boeing then at uses so on

00:26:10

so we won’t go any

00:26:12

further more

00:26:15

interesting what’s what what else is here, there is

00:26:17

still there, there must

00:26:20

be one before that, let’s write

00:26:23

it like this, yes. these structures will be one of these days, the

00:26:29

client book, and then what classes what

00:26:32

pole will come to us to create a book. it’s

00:26:36

very easy to think that they will

00:26:38

come to us, so we can take all these

00:26:40

all these fields and set what will come to us

00:26:43

when we create a book as a lawyer,

00:26:46

obviously the visit will not come, the visit will obviously not come

00:26:49

to us, the full ones will obviously come to us, all three fields

00:26:51

of which will come to us are crazy, we will

00:26:53

force here it is glues the beech to that

00:26:56

further update the beech to what fields they will

00:27:00

come to us when they want to update the

00:27:02

book, well, in fact, absolutely all

00:27:06

the questions and yes, I haven’t really decided yet,

00:27:09

here it will be possible to set from the

00:27:11

brothers to snatch and view the

00:27:14

book identifier without substituting

00:27:16

the model but you can demand it yourself to

00:27:18

transfer paths on the web from the method and

00:27:23

I probably require it to attach a method here, it’s more

00:27:27

convenient for me so as not to insert

00:27:29

less less

00:27:33

what else can you do here, you can still make

00:27:36

a patch and by the way amide empty should be removed

00:27:40

because but not amide empty it should

00:27:42

be

00:27:44

built validation subsequently no m

00:27:47

believes that optional fields are

00:27:48

required all the quirks

00:27:51

here and here

00:27:53

but it can’t help but be the author they are

00:27:56

sometimes all that and but you

00:27:59

why do you need

00:28:02

Aid then so

00:28:04

that in the service

00:28:06

when we create the

00:28:08

trade book method

00:28:10

context

00:28:12

context context we will indicate here before

00:28:16

this, well, or a link to the group and

00:28:20

the book is returned now we create

00:28:24

this method

00:28:28

[music]

00:28:31

and this one before this will be the connecting

00:28:33

story not

00:28:37

and this date this one this

00:28:40

is the connecting

00:28:43

part of the

00:28:45

business logic layer with With this controller I

00:28:50

am a controller repository

00:28:56

and let's see how it will

00:28:57

work,

00:28:58

we create a venture, well, we create a

00:29:01

daddy adapter

00:29:05

there,

00:29:08

we can create an a.p.

00:29:12

and let's create more controllers

00:29:15

so that there is a straight

00:29:17

drop out so that Poland

00:29:20

here we create a handler yes here we

00:29:24

create a handler let's now here we

00:29:27

will create a handler about spam

00:29:30

here we will create a type of

00:29:35

henna

00:29:37

unsanitary Jess 3 and

00:29:39

[music]

00:29:41

this is all in one

00:29:43

video on what to

00:29:45

use but that's all the same Gillian

00:29:47

Schmidt so the gate is somehow small and

00:29:51

we can do it no we can so

00:29:55

go

00:29:59

for three summers

00:30:02

I don’t remember I do

00:30:04

n’t remember I

00:30:06

don’t remember and I copied and pasted

00:30:08

go get that’s how

00:30:13

Julian makes noise when he took

00:30:18

the State Duma

00:30:20

thank you very much and

00:30:22

and the

00:30:24

food is

00:30:26

wonderful

00:30:29

wonderful now we're going

00:30:33

here, by the way, we can also create a user folder

00:30:37

and move controllers there,

00:30:40

but we mostly

00:30:42

work with books with books, so let's use

00:30:44

one letter,

00:30:46

but not only the file, the book directory

00:30:52

and transfer the controller there, oh

00:30:55

yes, and here we can make a separate one

00:30:58

file interface

00:31:01

and transfer our handler there so that, well,

00:31:05

not for him, so that drayton does all the work

00:31:07

without copy-paste and

00:31:10

that’s

00:31:12

all, but in this Hindley, are we already actually

00:31:14

declaring the handler structures, the

00:31:19

structure is he can

00:31:22

demand something, maybe not something demand

00:31:24

taxes and for example here there may be some

00:31:27

kind of service up to,

00:31:30

well, by the way, let’s immediately write here a

00:31:32

service is required bow service,

00:31:36

our tug is required here

00:31:40

and then we will create the new finger function but the

00:31:43

constructor and where we will pass the god

00:31:46

service of course

00:31:49

service yes we have nothing else for now no, and the

00:31:52

interface of the hander will come back; they

00:31:56

sit on the

00:31:58

Sim’s face, because he is a

00:32:00

handler, bow service, service,

00:32:04

fingers, everything seems to be fine for now, but a

00:32:08

couple, and it’s good because we don’t have a

00:32:10

Christmas method before you and me now, and I’m

00:32:16

behind the general finger, not links or in the toilet,

00:32:20

just now

00:32:23

or what feelings

00:32:26

register

00:32:28

arrow before his morning is already a handler

00:32:33

but through this, well, it doesn’t matter the handler as a

00:32:36

method method I don’t want a method get get

00:32:43

well, test dogs must endure

00:32:46

constants why not yes

00:32:50

bun it is

00:32:54

but

00:32:57

[music]

00:32:58

for clarity and

00:33:04

[music]

00:33:08

here God

00:33:11

ordered ph there get all books

00:33:17

naturally get all books there is no so the

00:33:22

implementation started in this response

00:33:27

sponsor

00:33:29

holes to have a request well and nothing

00:33:34

is returned this thing and also

00:33:40

[music]

00:33:43

no what

00:33:46

Lenin

00:33:48

what do you want from me

00:33:52

handy handy

00:33:57

Candace get all books times punk

00:34:00

sponsor is when request

00:34:07

request and also folders

00:34:11

and what you can’t

00:34:25

dumb

00:34:28

understandable

00:34:30

everything is wonderful wonderful

00:34:32

wonderful here and here before business is not for the

00:34:36

euro and before

00:34:43

boxing here we called pine god service

00:34:48

received all the books transferred to Kontek

00:34:52

so both ground than there still wants

00:34:55

limits color, well, it’s clear that we

00:34:57

got the limit, everything was so great,

00:34:59

we got all the books,

00:35:01

here’s ours,

00:35:03

or these torments before,

00:35:07

well, it was all good,

00:35:10

cover it up, or in general,

00:35:14

well, yes, you can’t, it doesn’t matter, in

00:35:16

general,

00:35:18

I won’t take up your time,

00:35:22

so we get service beeches he is a machine

00:35:25

in bytes and MB, we give it back, I say that

00:35:27

in general everything is great, that’s

00:35:38

super

00:35:44

it’s control,

00:35:45

I’ll fix the water, it depends

00:35:49

accordingly in paragraphs.

00:35:54

here we create and work with all

00:35:59

the entities that are needed to

00:36:01

service the external

00:36:05

controller here we create everything we

00:36:11

register here in general you

00:36:14

can renounce the

00:36:18

family and make an entry point here

00:36:25

in adapters

00:36:26

you can not do this because the

00:36:28

architecture still needs something to

00:36:31

help and not break so we leave 7

00:36:34

and personally I leave my family I leave main

00:36:37

doesn’t do but inside the adapters you don’t ruin

00:36:41

your life

00:36:43

I don’t ruin your life why

00:36:47

and why should I do this and

00:36:51

one more thing that we should

00:36:53

talk about this is also talk about bibi you have

00:36:55

us here there will be a directory d.b.

00:36:59

and in this debi there will be several things

00:37:08

so

00:37:11

well as

00:37:14

not here why I'm here connections soda

00:37:17

and here the adapter

00:37:19

went

00:37:21

here another small nuance

00:37:24

here come service is defined service interface

00:37:29

it can be defined not only here

00:37:32

it can be defined in another place

00:37:34

it can be defined in the adapter

00:37:41

yes

00:37:42

where by we do everything the same means here we have

00:37:44

adapters

00:37:47

and you and I can make another

00:37:49

directory here and 5 so that we can

00:37:51

separate both

00:37:54

in and pia very well and we transfer god and use

00:37:58

and where by we create the same thing

00:38:01

or the king of beech

00:38:03

territory iodide

00:38:07

that's how it turned out in the adapters again

00:38:10

I go the application has rippain and the

00:38:12

outer layer which is not the business logic of

00:38:15

communication frisk ours escorts essentially

00:38:17

none of the hundred business logic let's say

00:38:22

so they were separated hell separate

00:38:25

[music]

00:38:28

let's get to the end dzevi

00:38:32

them daddy domain let's move here the

00:38:35

user

00:38:36

and the daddy adapter

00:38:39

which consists of

00:38:41

five db.

00:38:43

interface

00:38:46

for now exit on the spot,

00:38:49

yes, just like that, and now it’s counting,

00:38:52

now to assemble it,

00:38:55

I forgot a little at home, I created a few folders, here are the

00:38:59

adapters here, IP and db.

00:39:05

and write out from on the controller the

00:39:08

service controller, that is, your adapter

00:39:12

and 5 to which the

00:39:17

control is connected to yu with cases, that is,

00:39:20

control and all this goes into the service and

00:39:23

space this is the service

00:39:26

sketch this is the service and the service

00:39:29

here the interface the interface is declared

00:39:32

services

00:39:36

let's do

00:39:39

this announce the MAZ interface

00:39:41

at the level of all adapters, here you

00:39:44

can see the service interface,

00:39:50

but I usually announce it here, it’s inconvenient, don’t

00:39:54

forget the dirt, don’t forget it costs them a long time on the

00:39:56

Maidan, a silver bullet to help,

00:39:58

to help, this is where we have to go to

00:40:00

differentiate everything in debi, everything is just

00:40:03

baby, everything is simple, it means we are creating

00:40:08

you are already 100 nights

00:40:12

and here we are

00:40:16

implementing

00:40:19

God

00:40:22

we will have that

00:40:25

beech

00:40:26

watchman structure that implements the

00:40:28

interface

00:40:30

watchman interface where is it

00:40:37

or test syntax we take all these

00:40:39

methods

00:40:54

and raises

00:40:55

and God we import from his

00:40:58

lookbook

00:41:04

everything was super box that night implements

00:41:07

the interface which declared domain

00:41:10

area

00:41:11

is great

00:41:13

in it we have methods

00:41:15

it all those plan this whole story yes I did

00:41:21

n’t swear

00:41:25

bookstore g what should be

00:41:29

boxing the same can be anything the client

00:41:33

team

00:41:35

can be a wrapper over all the client as

00:41:38

you want this is already a question of the date base but this is

00:41:43

already there must be a sky adapter yes it

00:41:45

must be here this is like a

00:41:49

p&g client already clients that man where the trouble is a

00:41:55

client [ __ ] db

00:41:58

file

00:42:00

manga [ __ ]

00:42:03

and already here there is a certain client a

00:42:07

certain client who is there

00:42:12

punk new point who does something

00:42:15

something calls before him here this client

00:42:19

will live here, would live here,

00:42:23

that is, he will be here this client

00:42:27

manga before the tables

00:42:30

and such a story

00:42:32

you don’t have in magic

00:42:34

or there in take-off then

00:42:40

so, let’s finish for 1 time often

00:42:44

yes I think an overload happened an overload

00:42:46

happened write is it necessary Is there a continuation of

00:42:49

this application that needs to be completed with the

00:42:51

use of Is it necessary to be

00:42:52

completed if the topic is

00:42:55

interesting and if you liked the presto and

00:42:57

most importantly it became clear, God bless him I

00:42:59

liked it if it’s clear, like it,

00:43:03

write comments,

00:43:04

if it’s not clear, put a dislike,

00:43:08

please so that I understand how it is in

00:43:10

general, that’s why it’s

00:43:13

broken off now in

00:43:15

mid-sentence essentially didn’t finish baby

00:43:20

butch if you want to be often

00:43:24

everyone thank you very much everyone health until we

00:43:27

meet again

Description:

Пришло время пообщаться про чистую архитектуру и ее реализацию в Go. Приятного просмотра! GitHub репозиторий: https://github.com/theartofdevel/golang-clean-architecture С радостью хочу вам представить, что я запускаю курс “Начальная подготовка” по языку Golang. Курс как для совсем начинающих в сфере IT, так и для тех, кто хочет просто изучить язык Go. Больше обо мне и курсах можно прочитать здесь: https://artofedu.org/ Больше информации есть в ролике на ютубе: https://www.youtube.com/watch?v=E0b0dmwf-6c На все вопросы могу ответить в Телеграм группе канала и в личных сообщениях. Другие видео: Уроки по Golang. Advanced. REST API. Вебсервер. https://www.youtube.com/watch?v=oTC-86QADI0 Изучаем Python. Урок 1. Основы. Бонус: Пишем приложение на FastAPI https://www.youtube.com/watch?v=JTbNTllXJBk Изучаем Golang. Урок 1. Основы + веб-сервер в 3 строки в конце урока! https://www.youtube.com/watch?v=G6eZaX_lgbQ Разработка системы заметок на Python, Golang и микросервисы в 2021 году https://www.youtube.com/watch?v=Txi95RQPRP0 Как стать разработчиком. Часть 1 https://www.youtube.com/watch?v=tUQrrm3UcbI Что такое микросервисы за 200 секунд https://www.youtube.com/watch?v=Q99r7ssHrvU Что такое Apache Kafka за 200 секунд https://www.youtube.com/watch?v=IX3N_io80es Telegram Group: https://t.me/theartofdevel VK: https://vk.com/theartofdevel Дружественный Golang чат: https://t.me/gogolang ---- Меня зовут Артур Карапетов и я занимаюсь всем, что связано с разработкой. Я создаю высоконагруженные информационные системы, стартапы, занимаюсь личным обучением людей в сфере разработки (программисты, аналитики, системные администраторы), также я помогаю компаниям и стартапам с обучением людей работать и повышением их квалификации, об этом можно почитать здесь: https://mitkadr.ru. На этом канале я выкладываю ролики на интересующие меня темы, здесь можно найти серию роликов про создание информационной системы с нуля, а также можно найти серию уроков по языкам, которые я люблю. Добро пожаловать и хорошего просмотра!

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