For anyone wanting to use the ESP32 on the open internet, it's important to use HTTPS. However, I had issues with finding the CA-Cert for many hours. Hopefully this tutorial will help someone else.

• esp-idf

  245 12,434 10.0 C

  Espressif IoT Development Framework. Official development framework for Espressif SoCs.

  

I used this example to find out how big it is: https://github.com/espressif/esp-idf/tree/master/examples/protocols/https_request

• arduino-esp32

  228 12,590 9.6 C++

  Arduino core for the ESP32

  

To use the WiFiClientSecure class for ESP32, you need a Certification Authority Certificate. This is how HTTPS encrypts your data and makes it secure. My use case is pushing data to my prometheus instance via a domain name with plaintext username and password which I obviously want to encrypt. That's pretty much the context.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

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