Problem with connection to the google script server

[bastian187]

Hi,
I want to use your library to get the appointments from my google calendar. This is the code I'm using

`#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <WiFiManager.h>
#include <DNSServer.h>
#include <ArduinoJson.h>
#include "HTTPSRedirect.h"
#include <NTPClient.h>
#include <WiFiUdp.h>

// Params needed to fetch events from Google Calendar
char const * const dstHost = "script.google.com";
char const * const dstPath = "/macros/s/AKfycb[...]2S8fGWc3b-Q/exec"; // script path including key
int const dstPort = 443;
int32_t const timeout = 2000;
int const GoogleServerMaxRetry = 1; //maximum tries to reach google server.

WiFiClient client; // wifi client object
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP);

void configModeCallback (WiFiManager *myWiFiManager) {
DPRINTLN(F("failed to connect and hit timeout"));
DPRINT(F("Entered config mode at: ")); DPRINT(myWiFiManager->getConfigPortalSSID()); DPRINT(F(" IP: ")); DPRINTLN(WiFi.softAPIP());
}

void setup() {
unsigned long startTime = millis();

WiFiManager wifiManager;

wifiManager.setTimeout(30);
wifiManager.setBreakAfterConfig(true);
wifiManager.setAPCallback(configModeCallback);

Serial.begin(115200);

wifiManager.setConnectTimeout(5);
wifiManager.autoConnect("SmartEPD");

timeClient.begin();
timeClient.update();

Serial.println(timeClient.getFormattedTime());
syncCalendar();
}
void loop() {
}

void syncCalendar() {
HTTPSRedirect* client = nullptr;

client = new HTTPSRedirect(dstPort);
client->setPrintResponseBody(false);
client->setContentTypeHeader("application/json");

// Try to connect for a maximum of 5 times
bool flag = false;
for (int i = 0; i < GoogleServerMaxRetry; i++) {
int retval = client->connect(dstHost, dstPort);
if (retval == 1) {
flag = true;
break;
}
else
Serial.println(F("Connection failed. Retrying..."));
}

if (!flag) {
Serial.print(F("Could not connect to server: "));
Serial.println(dstHost);
Serial.println("Exiting...");
delete client;
client = nullptr;
return;
}

// fetch spreadsheet data
client->GET(dstPath, dstHost);
String googleCalData = client->getResponseBody();
}

In the Serial monitor I get this response:

*wm:AutoConnect: SUCCESS
*wm:STA IP Address: 192.168.178.122
17:12:31
Connecting to script.google.com
Connection failed. Retrying...
Could not connect to server: script.google.com
Exiting...
Fetching data is done now.

When I copy the Link from google script into my browser, I get the data. The ntp time in the monitor is working so it's no wifi connection problem.

Thanks for your help,
Bastian

[github-actions]

Welcome to HTTPSRedirect! Please provide enough info to debug the issue.

[bastian187]

SOLVED:
I finally solved the problem by hardcoding the wifi credentials into the code and using the direct wifi.begin function. And in syncCalendar I added client->setInsecure();. Now it is working without problems.