arduino-esp32/libraries/WiFi/examples/HTTPSRequest/HTTPSRequest.ino

/*
 *  HTTP over TLS (HTTPS) example sketch
 *
 *  This example demonstrates how to use
 *  WiFiClientSecure class to access HTTPS API.
 *  We fetch and display the status of
 *  esp8266/Arduino project continuous integration
 *  build.
 *
 *  Created by Ivan Grokhotkov, 2015.
 *  This example is in public domain.
 */

#include <WiFi.h>
#include <WiFiClientSecure.h>

const char* ssid = "........";
const char* password = "........";

const char* host = "api.github.com";
const int httpsPort = 443;

// Use web browser to view and copy
// SHA1 fingerprint of the certificate
const char* fingerprint = "CF 05 98 89 CA FF 8E D8 5E 5C E0 C2 E4 F7 E6 C3 C7 50 DD 5C";

void setup()
{
    Serial.begin(115200);
    Serial.println();
    Serial.print("connecting to ");
    Serial.println(ssid);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
    }
    Serial.println("");
    Serial.println("WiFi connected");
    Serial.println("IP address: ");
    Serial.println(WiFi.localIP());

    // Use WiFiClientSecure class to create TLS connection
    WiFiClientSecure client;
    Serial.print("connecting to ");
    Serial.println(host);
    if (!client.connect(host, httpsPort)) {
        Serial.println("connection failed");
        return;
    }

    if (client.verify(fingerprint, host)) {
        Serial.println("certificate matches");
    } else {
        Serial.println("certificate doesn't match");
    }

    String url = "/repos/esp8266/Arduino/commits/master/status";
    Serial.print("requesting URL: ");
    Serial.println(url);

    client.print(String("GET ") + url + " HTTP/1.1\r\n" +
                 "Host: " + host + "\r\n" +
                 "User-Agent: BuildFailureDetectorESP8266\r\n" +
                 "Connection: close\r\n\r\n");

    Serial.println("request sent");
    while (client.connected()) {
        String line = client.readStringUntil('\n');
        if (line == "\r") {
            Serial.println("headers received");
            break;
        }
    }
    String line = client.readStringUntil('\n');
    if (line.startsWith("{\"state\":\"success\"")) {
        Serial.println("esp8266/Arduino CI successfull!");
    } else {
        Serial.println("esp8266/Arduino CI has failed");
    }
    Serial.println("reply was:");
    Serial.println("==========");
    Serial.println(line);
    Serial.println("==========");
    Serial.println("closing connection");
}

void loop()
{
}