When working with APIs, it is recommended to follow some best practices to ensure the efficiency, security, and reliability of your application.

Best practices when working with APIs:

Code organization: try to organize your application code in such a way that it is easy to read and understand. This will help simplify interaction with the API and avoid errors when writing code.

Query optimization: it is recommended to use only the data that is really necessary for your application and avoid redundant queries. It is also recommended to use data compression and caching to speed up your application.

Caching: Use caching to reduce the number of API requests and improve the performance of your application.

How to avoid API usage costs:

Choosing an appropriate billing plan: before you start using an API, you should estimate the volume of requests and choose an appropriate billing plan. Also keep in mind that some APIs may provide a free billing plan with limited functionality.

Work with necessary queries: try to use only necessary data and avoid redundant queries to reduce the cost of using the API.

Overview of API tools:

Postman: this is a popular tool for testing and documenting APIs. It allows you to easily send requests and receive responses, as well as create documentation.

Insomnia: it is another popular tool for testing and debugging. It provides a wide range of features for working with APIs, including GraphQL support and automatic code generation.

Swagger: is used for API development and documentation. It allows you to create specifications in OpenAPI format and automatically generate documentation and code for client libraries.

How to choose an API

There are several factors to consider when choosing an API for your project:

Functionality: choose an API that meets the functional requirements of your project. For example, if you are building a map application, you need to use APIs that provide map data.

Availability: check if the API you want to use is available and how reliable it is. Some APIs may be paid or require registration, so make sure you have all the necessary permissions and access keys.

Documentation: a quality API is one that has good documentation, with code examples and instructions on how to use it. Good documentation will help you get started with the API faster and solve possible problems.

Support: make sure the API has a support team that can help you solve any problems or answer questions. Good support can save you a lot of time and avoid unnecessary problems.

Community: it is worth targeting an API that has an active developer community. Such a community can provide support, help with development, and offer many useful tools and libraries.

In general, when choosing an API, you should consider not only functional requirements, but also accessibility, documentation, support and community.