Before you can integrate with PayPal via the REST APIs, you will need to obtain an access token.
Given that REST APIs is agnostic to programming languages, you can use a programming language of your choice to get the Access Token.
In case you are wondering how you can get an Access Token to integrate with PayPal REST APIs in Python, this is how you can do so.
When you connect your ESP32 board to the internet, you may need to send HTTP Basic Authentication requests.
In this situation, we can rely on the HttpClient library from the Arduino core for ESP32.
Given that, this post shows how you can send a HTTP Basic Authentication request from your ESP32 development board.
When you are building a Python 3 application for the Internet, you could encounter API endpoints that use HTTP Basic Authentication as the authentication mechanism.
In such a situation, using the requests library in your Python 3 code makes it easier to communicate with those endpoints.
In case you need to build a Python 3 application that sends HTTP request to a HTTP Basic Authentication endpoint, this is how you can do so with the requests library.
One common task for Java developers is to write codes that communicate with API endpoints. Chances are these endpoints could use HTTP Basic Authentication for authenticating the HTTP request sender.
Although there are good libraries to help us craft and send HTTP requests to a web server in Java, I prefer to use the Java core library so as to keep my Java program lightweight.
Referencing my earlier post on how to construct a HTTP request to an endpoint with HTTP basic authentication, this post documents how to send an HTTP request to a HTTP Basic Authentication endpoint in Java without using any external libraries.
The HTTP basic authentication is a mechanism commonly used by web servers to authenticate the sender of a HTTP request. Such a mechanism is usually used to guard server endpoints that are meant to be accessed programmatically.
Almost every new project that I got my hands on required me to create client side coding for accessing server endpoints that use HTTP basic authentication for authenticating the HTTP request sender.
To have a quick reference on how to construct a HTTP request to an endpoint with HTTP basic authentication, I created this post to as a documentation. The steps are agnostic to any programming languages.
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