Change to CoinGecko API for price data and keep the webserver priority default

platformio.ini

@@ -62,7 +62,7 @@ build_flags =
   -D WITH_BUTTONS
   -D ARDUINO_USB_CDC_ON_BOOT
   -D HOSTNAME="\"btclock3\""
-  -D CONFIG_ASYNC_TCP_PRIORITY=500
+  -mfix-esp32-psram-cache-issue
 
 [env:esp32wemos-s3-mini_3C]
 platform = espressif32

src/tasks/get_price.cpp

@@ -1,6 +1,7 @@
 #include "get_price.hpp"
 
 const PROGMEM char *apiUrl = "https://api.coindesk.com/v1/bpi/currentprice/USD.json";
+const PROGMEM char *cgApiUrl = "https://api.coingecko.com/api/v3/simple/price?ids=bitcoin&vs_currencies=usd%2Ceur";
 
 std::vector<EventCallbackWithNumber> priceEventCallbacks; // Define a vector to hold multiple event callbacks
 TaskHandle_t getPriceTaskHandle;
@@ -18,6 +19,38 @@ void taskGetPrice(void *pvParameters)
         HTTPClient http;
         http.setUserAgent(USER_AGENT);
 
+        if (true)
+        {
+            // Send HTTP request to CoinGecko API
+            http.begin(cgApiUrl);
+
+            int httpCode = http.GET();
+
+            // Parse JSON response and extract average price
+            float usdPrice, eurPrice;
+            if (httpCode == 200)
+            {
+                String payload = http.getString();
+                StaticJsonDocument<768> doc;
+                deserializeJson(doc, payload);
+                JsonObject bpi = doc["bitcoin"];
+                usdPrice = bpi["usd"];
+                eurPrice = bpi["eur"];
+                for (auto &callback : priceEventCallbacks)
+                { // Loop through all the event callbacks and call them
+                    callback(usdPrice);
+                }
+
+                preferences.putFloat("btcPrice", usdPrice);
+                preferences.putFloat("btcPriceEur", eurPrice);
+            }
+            else
+            {
+                Serial.print(F("Error retrieving BTC/USD price (CoinGecko). HTTP status code: "));
+                Serial.println(httpCode);
+            }
+        } else {
+
             // Send HTTP request to CoinDesk API
             http.begin(apiUrl);
 
@@ -33,7 +66,8 @@ void taskGetPrice(void *pvParameters)
                 JsonObject bpi = doc["bpi"];
                 usdPrice = bpi["USD"]["rate_float"];
                 eurPrice = bpi["EUR"]["rate_float"];
-            for(auto &callback : priceEventCallbacks) { // Loop through all the event callbacks and call them
+                for (auto &callback : priceEventCallbacks)
+                { // Loop through all the event callbacks and call them
                     callback(usdPrice);
                 }
 
@@ -42,9 +76,10 @@ void taskGetPrice(void *pvParameters)
             }
             else
             {
-            Serial.print(F("Error retrieving BTC/USD price. HTTP status code: "));
+                Serial.print(F("Error retrieving BTC/USD price (CoinDesk). HTTP status code: "));
                 Serial.println(httpCode);
             }
+        }
 
         http.end();
 
@@ -54,7 +89,8 @@ void taskGetPrice(void *pvParameters)
 
 void setupGetPriceTask()
 {
-    if (getPriceTaskHandle == nullptr) {
+    if (getPriceTaskHandle == nullptr)
+    {
         xTaskCreate(taskGetPrice, "getPrice", 8192, NULL, 1, &getPriceTaskHandle);
         vTaskSuspend(getPriceTaskHandle);
     }