Local Authentication With React-Native and Expo
During local authentication, an app authenticates the user against credentials stored locally on the device. In other words, the user unlocks the app or some inner layer of functionality by providing a valid PIN, password or biometric characteristics such as face or fingerprint, which is verified by referencing local data. Generally, this is done so that users can more conveniently resume an existing session with a remote service or as a means of step-up authentication to protect some critical function.
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Play media url in IOS App using AVPlayer
Apple give one Controller to play Url in the App with controls.The name of controller is AVPlayerViewController.To use this Class first need to add AVkit framework.
After adding this framework We Will create the distance of AVPLayer .

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JWT Token
A JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. JWTs can be signed using a secret or a public/private key pair.
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Data Warehousing (DWH) Concept & Methodology
Data warehouse is a repository (Huge Collection) of organized useful data. It is a collection of current as well as historical data, designed for query and analysis purpose rather than transaction processing. It is logical because it enables you to analyze what has occurred with the business.
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