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NOTE: The HTTPS library and documentation are in the FreeRTOS Labs.  The libraries in the FreeRTOS Labs download directory are fully functional, but undergoing optimizations or refactoring to improve memory usage, modularity, documentation, demo usability, or test coverage.  They are available as part of the main download.

HTTPS Client Library – A FreeRTOS Labs Project 


The HTTPS Client (Hypertext Transfer Protocol) library provides a lightweight HTTP client request and response messaging protocol that runs on top of TCP/IP and is often used in web application use cases.  The HTTPS Client library implements a subset of the HTTP/1.1 protocol standard and uses the IoT Task Pool library for threading.

An HTTP connection to a server can be established in a non-secure (HTTP) and secure manner (HTTPS). Especially in IoT use cases, TLS (Transport Layer Security) is used to provide a secure communication protocol between a client and server.  In TLS, the client and server establish a secure connection through a handshake protocol to prevent eavesdropping from any malicious parties. When the library is called “HTTPS” instead of “HTTP”, it indicates that HTTP over TLS is enabled by default.

The FreeRTOS Plus libraries can be used individually or collectively to create locally connected or internet connected MCU applications.  Each library can be freely used and is distributed under the MIT open source license


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