/** StreamHTTPClient.ino Created on: 24.05.2015 */ #include #include #include #include ESP8266WiFiMulti WiFiMulti; void setup() { Serial.begin(115200); // Serial.setDebugOutput(true); Serial.println(); Serial.println(); Serial.println(); for (uint8_t t = 4; t > 0; t--) { Serial.printf("[SETUP] WAIT %d...\n", t); Serial.flush(); delay(1000); } WiFi.mode(WIFI_STA); WiFiMulti.addAP("SSID", "PASSWORD"); } void loop() { // wait for WiFi connection if ((WiFiMulti.run() == WL_CONNECTED)) { WiFiClient client; HTTPClient http; // must be declared after WiFiClient for correct destruction order, because used by http.begin(client,...) Serial.print("[HTTP] begin...\n"); // configure server and url http.begin(client, "http://jigsaw.w3.org/HTTP/connection.html"); // http.begin(client, "jigsaw.w3.org", 80, "/HTTP/connection.html"); Serial.print("[HTTP] GET...\n"); // start connection and send HTTP header int httpCode = http.GET(); if (httpCode > 0) { // HTTP header has been send and Server response header has been handled Serial.printf("[HTTP] GET... code: %d\n", httpCode); // file found at server if (httpCode == HTTP_CODE_OK) { // get length of document (is -1 when Server sends no Content-Length header) int len = http.getSize(); // create buffer for read uint8_t buff[128] = { 0 }; #if 0 // with API Serial.println(http.getString()); #else // or "by hand" // get tcp stream WiFiClient* stream = &client; // read all data from server while (http.connected() && (len > 0 || len == -1)) { // read up to 128 byte int c = stream->readBytes(buff, std::min((size_t)len, sizeof(buff))); Serial.printf("readBytes: %d\n", c); if (!c) { Serial.println("read timeout"); } // write it to Serial Serial.write(buff, c); if (len > 0) { len -= c; } } #endif Serial.println(); Serial.print("[HTTP] connection closed or file end.\n"); } } else { Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str()); } http.end(); } delay(60000); }