hr@txlabs.co
APIs & SYSTEM INTEGRATIONOur experience encompasses a variety of skillsets, delivered rapidly with agile methodology for maximum business impact.
We will define the shape of APIs, the document interfaces, and provide stub endpoints. In the design phase, the API developer collaborates with clients of the API and the data provider to arrive at the shape of the API. REST API essentially consists of exchanging JSON messages over HTTP. JSON is a dominant format in REST API since it is a compact, easy to understand, and has a flexible format that does not require declaring schema up front. Different clients can use the same API and read the data that they need.
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Here, we do functional testing of APIs by sending a request and analyzing the response at different levels of visibility, namely, application, HTTP, and network. REST uses HTTP for transport that specifies the request and response formats of API. TCP/IP, in turn, takes the HTTP messages and decides how to transport them over the wire.
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When deployed on the web, there are HTTP tools that help with the hosting of APIs for performance, security, and reliability. In particular, we will cover three parts of HTTP protocol — Caching for performance, DNS for high availability and scalability, and TLS for transport security.
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Before moving on to production, we use tools for performance testing of APIs that tell us how much load APIs may support. The basic idea behind performance testing is to send lots of requests to the API at the same time and see at what point performance degrades and ultimately fails.
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Once the API is deployed in production, testing in production provides the overall health of live APIs and alert us if any problem occurs. Testing in production includes a set of activities clubbed together as observability that includes logging, monitoring, and tracing. The tools for these activities will help us to diagnose and resolve issues found in production.
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Lastly, we will take a look at some of the tools for API management activities like traffic shaping, blue-green deployment, canary, etc. PI Management tools serve as a gateway that provides services that let API Clients provision themselves by getting API key, and API Providers configure DNS, caching, throttling policies, API versioning, canarying.
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