Code 401: Class 34 - Login and Auth

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Questions

1. Why is the context API useful? Useful when some data needs to be accessible by many components at different levels.

2. Can a component outside of a provider get its context? Yes, it is possible to access context outside of a provider.

3. What are some common use cases focusing the Context API? Where data or state is needed by all or most components such as page themes

4. Describe “Context Hell” Many nested layers of components passing context down

Vocabulary

• Global State A higher order component that stores state that is needed by many other components
• Global Context Top level object that will contain all of the context for all consumers
• Provider Context object that shares props with all consumers, consumers will rerender when every provider prop changes
• Consumer Subscribes to a provider and rerenders whenever the provider props change

Read: What is role based access control

• RBAC (Role Based Access Control)
• Limits network access to only those who need access and provides access to only what is needed by job role
• Benefits
  • Reduces administrative work and IT support
  • Maximizing operational efficiency
  • Improves compliance regarding the safeguarding of sensitive data

Read: React-cookies component

• Documentation for NPM package react-cookies npm i react-cookies --save

Read: React-cookie library

• Documentation for NPM package React-Cookie
• npm i react-cookie

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