HTTPS Client

You will now make changes to your HTTP client files so that it also works for encrypted connections.

intro/http-client/examples/http_client.rs contains the solution. You can run it with the following command:

cargo run --example https_client

Create a custom client configuration to use an esp_idf_svc::http::client::EspHttpConnection which enables the use of these certificates and uses default values for everything else:

#![allow(unused)]
fn main() {
    let connection = EspHttpConnection::new(&Configuration {
        use_global_ca_store: true,
        crt_bundle_attach: Some(esp_idf_svc::sys::esp_crt_bundle_attach),
        ..Default::default()
    })?;
}

✅ Initialize your HTTP client with this new configuration and verify HTTPS works by downloading from an https resource, e.g. https://espressif.com/. the download will show as raw HTML in the terminal output.

Troubleshooting (Repeated from Previous Section)

• missing WiFi name/password: ensure that you've configured cfg.toml according to cfg.toml.example - a common problem is that the package name and config section name don't match.

# Cargo.toml
#...
[package]
name = "http-client"
#...

# cfg.toml
[http-client]
wifi_ssid = "..."
wifi_psk = "..."