The idea behind GraphQL is to introduce super flexible way of fetching (and modifying) data. How does API look like? The API looks more like a schema. For example: How do I query/mutate data? You can take what you need (no need for taking full users data): You can query a specific user: You can …
OpenAPI is a specification for documenting your HTTP based API. Example It describes how both a request and a response should look like. Usually YAML format is used, but there is also support for other formats (for example JSON). How it relates to Swagger? OpenAPI specification was originally developed within Swagger (as Swagger specification) and …
In essence, ambient intelligence aims to create smart environments where technology is:– embedded – is somewhere next to a person– context-aware – it knows if we are in a hospital/construction area or other place– personalized – it’s per person, not per role– anticipatory – tries to predict user needs and act proactively to address them …
The idea behind RBAC is to manage the access to resources by utilizing roles – so you don’t assign a permission to a resource for a single person, but rather create a role and assign the permission to the role. Then you assign people to the role. Worth a look 1. https://en.wikipedia.org/wiki/Role-based_access_control
In general Docker nicely solves the problem „it works on my machine”. However, there is one caveat – your building and running platform must be same. By the same I mean if processors are architecturally the same (you can read more about it here). Solutions 1. You take care of your build and run environments …
In this post we will take a look at the big picture of how monitoring systems work nowadays by looking at tools Grafana, Prometheus, Loki and other. Prometheus <-> Your Application metrics As depicted in the picture the idea is that your application exposes /metrics endpoint where Prometheus reads from time to time (usually every …
CQRS is a pattern in which you have a different model for create/update/delete and a different one for read. The most applicable place for it is Event Sourcing – so you store events and for reading you use for example a database (which have been listening to the events and stores the current state). Worth …
CQRS – Command Query Responsibility Segregation Czytaj dalej »
When it comes to building an application we can react on some events (for example a user clicked the SAVE button, then we send request to backend and it does the job) and then forget about them (events). Event Sourcing is a different approach – you store events (like SavedForm(clickedBy, datetime, …)) and also have …
Cookies are just HTTP headers. However, special kind of headers which are used to keep information longer on a client side and then send it back to server. The basic flow is that a client asks for a resource, then a server responds with setCookie header and then the client stores given information and use …
Kotlin stworzył lżejszą alternatywę dla natywnych wątków – coroutines. Jest to w gruncie rzeczy programowa obsługa wątków (zajrzyj tutaj po więcej na ten temat). Kod oparty o wątki (czysta Java) Kod oparty o wątki (Kotlin) Kod oparty o coroutines
