6.0 Automation and Programmability
6.5 Describe characteristics of REST-based APIs (CRUD, HTTP verbs, and data encoding)
REST (Representational State Transfer) is a popular architectural style for building web services and APIs. REST-based APIs are characterized by the following key elements:
1. CRUD (Create, Read, Update, Delete) operations: REST-based APIs allow for the basic CRUD operations to be performed on resources in a system. For example, an API might allow for the creation of new resources, the reading of existing resources, the updating of existing resources, and the deletion of resources.
2. HTTP verbs: REST-based APIs use HTTP verbs, such as GET, POST, PUT, and DELETE, to perform CRUD operations on resources. For example, a GET request might be used to retrieve a resource, while a POST request might be used to create a new resource.
3. Data encoding: REST-based APIs use data encoding, such as JSON or XML, to represent resources in a format that can be easily transmitted and understood by other systems. This encoding format is typically specified in the request and response headers, and provides a standard way for systems to exchange data over HTTP.
Overall, REST-based APIs provide a simple and flexible way for systems to interact with one another over the web. They are based on a set of well-defined standards and conventions, and are widely adopted in the development of web services and APIs.
6.6 Recognize the capabilities of configuration management mechanisms Puppet, Chef, and Ansible
Puppet, Chef, and Ansible are popular configuration management mechanisms that help automate the process of deploying, configuring, and managing IT infrastructure. Each tool provides a set of capabilities to manage IT environments, including: