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  API is short for Application Programming Interface (API), which describes a class library's characteristics or how to use it. Your personal library may contain "API documentation" of available functionality. A REST API in API Gateway is a collection of resources and methods integrated with back-end HTTP endpoints, Lambda functions, or other AWS services. You can use API Gateway features to help you with all aspects of the API lifecycle, from creation through monitoring your production APIs. API Gateway REST APIs use a request/response model where a client sends a request to a service and responds back synchronously. This kind of model is suitable for many different kinds of applications that depend on synchronous communication. When many people refer to API documentation these days, they often refer to an HTTP API that might share your application data over the web. For example, Twitter provides an API that allows users to request tweets in a specific format to easily i

 What is Javascript? It's a scripting language that runs in a browser, and Javascript can do almost anything on a Web page: HTML can be manipulated, providing a tool to change HTML at runtime. Events can be attached and executed, in line with the idea of event-oriented programming. The data verification function verifies the validity of the form of data when submitting the form. The operation of the client's browser: forward, backward, refresh, jump, open a new window, print, etc. Cookies can be created and used. What is Java? Java is a programming language introduced by Sun. It is an interpreted language with syntax rules similar to C++. Java is also a cross-platform programming language. The program written in Java language is called "Applet" (small application program). After compiling it into class files by the compiler, it is stored in the WWW page and marked on the HTML file accordingly. As long as the client software of Java is installed, the client can run the

The difference between OOM and UML by definitions. Object-oriented modeling (OOM) is the construction of objects using a collection of objects that contain stored values of the instance variables found within an object. Unlike models that are record-oriented, object-oriented values are solely objects. UML stands for “Unified Modeling Language. The purpose of UML is visually representing a system along with its main actors, roles, actions, artifacts or classes, in order to better understand, alter, maintain, or document information about the system. We can say that UML is the new approach for documenting and modeling the software Object-oriented modeling is the process of construction of objects. Objects contain stored values of the instance variables. It creates the union of the application and database development. The union is then transformed into a unified data model. This approach makes object identification and communication easy. It supports data abstraction, inheritances, and e

  Today I want to explain some information from what I learned in the class and some sources outside. What is Docker? Docker is a package of Linux containers, providing a simple and easy to use container interface. It is by far the most popular Linux container solution. It is a kind of visual machine but it also has differences from the visual machine. Docker packages the application and its dependencies in a single file. Running this file generates a virtual container. The program runs in this virtual container as if it were running on a real physical machine. With Docker, you don't have to worry about the environment. Generally speaking, Docker's interface is quite simple. Users can easily create and use containers and put their own applications into the containers. Containers can also be versioned, copied, Shared, and modified just like normal code. The main USES of Docker currently fall into three categories. First, provide a disposable environment. Examples include testing