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In 2005, Alistair Cockburn realized that there wasn’t much difference between how the user interface and the database interact with an application, since they are both external actors which are interc...
Architecture
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They use Synchronous Python (I/O blocks processing, like network requests), they tried asynchronous but had a lot of bugs with the library, too much technical effort for almost none benefit....- Published on
NET MVC Application (9 of 10). In this github issue we can see a good discussion about the ways we can handle it.. PS 2 Unit of work is the same code that I created to solve database transactions wher...- Published on
The controllers would access the current user's credentials and pass that information to the interactors.. Normal web channel will probably have the session cookie with user_id in it....- Published on
This is validation. In this layer, validation means protecting the system at low level.. The responsibility of this layer is converting data from one’s format to another one’s.. In this layer, validat...- Published on
However, it sits at a higher level closer to the business logic of an app.. Consequently, a repository can use a DAO to fetch data from the database and populate a domain object.. And, a repository is...- Published on
Its a technic to allow unbranded values to be implicity converted into the branded type, but doesnt allow implicit conversion between branded types.. When we want to write a code that can safely assum...- Published on
WHAT The event handler is a closure that contains the behavior of the event handler.. APP_STATE the state of the application.. By downloading and executing the components currently in the HTML....- Published on
Em casos onde temos interações com outros serviços no meio, pode-se ter atraso ou até perda de todo o processo, fazendo com que o modelo sincrono seja ruim nesses casos.. Exemplo. Você não pode recebe...- Published on
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For example, when API Gateway and Lambda interact, there is no concept of load balancing available since it is entirely managed by the services.. Lambda provides an initializer before the handler wher...- Published on
Lambdas são propositalmente limitados em 15 minutos, porem em média, através de todos os clientes da AWS, a maioria das invocações de funções duram menos que 1 segundo.. Eventos são imutáveis e o temp...- Published on
Listeners - locate event listeners and install them on the DOM nodes to make the application interactive.. The frameworks have to download all of the component code associated with the current page.. ...- Published on
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What could be simpler. What are better client interfaces than a single function?. They're so pervasive in FP that you use without noticing all the boiler-plate code you didn't needed to write....- Published on
The AreaCalculator class should only be concerned with the sum of the areas of provided shapes.. It states that the high-level module must not depend on the low-level module, but they should depend on...- Published on
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Um bom exemplo seria um sistema de cadastro de clientes onde um cliente edita sua informação e notifica outros sistemas que precisam atualizar esse dados tbm, porem a notificação envia os dados altera...- Published on
In Facebook they use Relay, but not always you will have a GraphQL API to implement it...