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EURK Pilot Test Smart Contract is unavailable for security reasons as of 2nd of April. Therefore, EURK will not be available for buying, selling, and exchanging until further notice.
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We sincerely apologize for the inconvenience caused.
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EURK Team
Application programming interface (API) has become an integral part of the modern web, powering connections between different applications and services. But for many, the inner workings of APIs remain somewhat mysterious.
In this article, we'll demystify APIs by exploring what they are, how they work, different types of APIs, use cases, benefits, and more—all in a way that is easy for any tech enthusiast to understand. Let’s start to discover the basics of an API!
When an app wants to use an API (application programming interface), it makes a request across the internet via common protocols like HTTP (S) to the API endpoint. Think of the restaurant where you place your order.
The API processes the request using the specified functions and methods within its specification and returns a response back to the calling app in a standardized format, such as JSON. Popular API interface languages include JSON, XML, CSV, and JPEG.
There are a few fundamental principles that underlie all APIs. APIs are programmatic, meaning they can be accessed by other software applications rather than just humans.
APIs are stateless, meaning each request contains all the necessary information and does not rely on preserved context from previous requests.
Additionally, they have a defined interface, specifying how data can be accessed and returned in a predictable way. And finally, APIs are self-describing using documentation and metadata.
If you want to learn more about application programming interfaces, make sure to check out “API access for your crypto exchange” and “SDK vs. API." With these guides, you can have a detailed understanding of APIs in the crypto world and software development.
There are a few main types of APIs in use today based on their purpose and design. Developers commonly use REST APIs for web services that follow RESTful architectural principles. SOAP APIs expose functionality via XML messages over HTTP. GraphQL APIs, on the other hand, allow flexible data queries.
Others include Webhooks, server-sent events, and WebSockets APIs tailored to real-time needs. The type of API to choose will depend on your specific integration scenario.
REST, or Representational State Transfer, is one of the most ubiquitous API architectural styles due to its simplicity. REST APIs use common HTTP requests such as GET, POST, PUT, DELETE, and standard pathway URL structures to perform operations on "resources"—any retrievable or modifiable entity.
While REST APIs expose CRUD functionality, web APIs enable front-end web apps and back-end services to communicate through standardized web protocols like HTTP, XML, and JSON.
Popular examples include the Twitter API, which allows third-party clients to access and post tweets, and the Facebook Graph API, which reads and updates user profiles and social graphs programmatically.
Application programming interfaces have become integral across industries and use cases. When it comes to software solutions, integration and customization are key factors to consider. Here are the common use cases of APIs:
Here are also the common benefits of APIs to better understand their wide range of use cases:
As API-driven adoption of stable digital assets grows, projects like EURK will continue shaping the future of money and value exchange around the world. EURK is a secure euro stablecoin platform that offers fast, secure, and easy transaction opportunities in the volatile world of cryptocurrencies.
You can trust EURK as the best euro stablecoin in the stablecoin ecosystem. With a compatible euro stablecoin wallet, you can directly benefit from the advantages of EURK, from stablecoin liquidity to transparency for stablecoin. Check the “EURK whitepaper” and “EURK roadmap” for more details!
While APIs and libraries both expose bits of pre-built functionality, there is an important difference: APIs provide full customization of their use, unlike libraries.
Third-party application developers can build customized solutions by defining a request-response model via endpoints and operations through APIs without constraining how they are implemented.
Libraries, on the other hand, offer more rigid pre-built functionality in the form of "black boxes" that users can only use in specific, predefined ways.
For example, a math library would expose functions like add(), subtract(), etc. but not allow customization. Using extensible design, APIs blur this line by focusing on the "what" over the "how."
API integration connects software applications for seamless communication, data exchange, and streamlined workflows, enabling automated tasks and data sharing between programs. It is the process of connecting an external API to an application's existing infrastructure. This process involves:
An API gateway acts as a single entry point and proxy for all API communication. It sits in front of backend services to centrally handle traffic management, security, monitoring, and orchestration.
This improves API performance, availability, and security by providing capabilities like throttling, authentication, analytics, and caching. Popular API gateway platforms include Nginx, Tyk, Kong, and Amazon API Gateway.
API endpoints are the defined URLs that represent available operations. For instance, https://example.com/fruits or https://example.com/order would be endpoints for a produce delivery API.
Well-crafted API endpoints should intuitively describe available resources and actions, such as nouns (fruits) and verbs (order), so that they are naturally discoverable without documentation.
API testing ensures the APIs' reliability, performance, and security by subjecting them to a variety of test cases. Automated API testing is crucial for maintaining API quality and meeting SLAs.
The key API testing types include unit testing API endpoints, functional testing for responses and flows, load and performance testing under traffic, and fuzz testing for security vulnerabilities.
Detailed documentation is indispensable for self-service API usage. Developers should clearly explain the API purpose and capabilities, authentication process, resources and endpoints, request and response formats, error codes, and more.
Popular formats include Markdown, JSON, RESTful API Modeling Language (RAML), and Swagger/OpenAPI. Tools like Readme.io and UI annotations facilitate collaborative API documentation.
With an API in hand, the next step is to use it. Most APIs require simply making HTTP requests using common methods like GET, POST, PUT, and DELETE. While some libraries handle the grunt work, it pays to understand the underlying requests. Here are the key steps:
Prior to writing production code, test the API using tools or your browser. Iterative exploration reveals API capabilities and catches issues early. Proper planning allows easy API integration.
There are a few key steps to follow in order to create an API:
ProgrammableWeb was an excellent portal for discovering thousands of public APIs across different domains and industries. Other sources include API provider websites directly, as well as platforms like RapidAPI and Google OpenAPI Directory.
It's also worth exploring partner APIs offered by major platforms like Amazon Web Services (AWS), Microsoft Azure, or Google Cloud for new integration ideas.
Choosing the right API requires examining your specific integration needs and use cases, as well as the type of support offered, adoption level, commercial terms involved, long-term roadmap, and support offered by the provider.
The overall goal should be to select high-quality, scalable, secure, and well-documented APIs from reputed vendors to build robust, future-proof integration layers with minimal effort.
Using these tips should help shorten your selection process and ensure the right strategic choice. Going forward, investing time in understanding APIs will pay off with faster integrations and innovation capabilities.
With EURK euro stablecoin empowering projects to build innovative payment applications backed by stable value, the future of accessible finance indeed looks bright.
If you want to adapt to the future with a secure option in the world of digital finance with blockchain technology, EURK is here for you. Become a partner today!
