ESP8266 NOT CONNECTING TO AWS IoT

Question

My code below. It just prints ........... and never connects.
```
#include 
#include 
#include

#include "secrets.h"
#include "constants.h"

BearSSL::WiFiClientSecure espClient;
PubSubClient client(espClient);

BearSSL::X509List cert(AWS_ROOT_CA_CERTIFICATE);
BearSSL::X509List client_crt(AWS_DEVICE_CERTIFICATE_CRT);
BearSSL::PrivateKey key(AWS_DEVICE_CERTIFICATE_PRIVATE_KEY);

void setupWifi(){
  WiFi.begin("A12", "oste8780");
  Serial.print("Connecting");
  while (WiFi.status() != WL_CONNECTED){ delay(500); Serial.print("."); };
  Serial.print("Connected, IP address: ");
  Serial.print(WiFi.localIP());
  Serial.print(NEXTION_END_STRING);
}

void connectAWS(){
  while (WiFi.status() != WL_CONNECTED){
    delay(500);
    Serial.print(".");
  }
 
  // Connect to the MQTT broker on the AWS endpoint we defined earlier
  Serial.print("Connecting to AWS IOT");
  while (!client. Connect(THING_NAME.c_str())){
    Serial.print(".");
    delay(100);
  }
  // Subscribe to a topic
  client. subscribe(AWS_READING_TOPIC_SUB.c_str());
  Serial.println("AWS IoT Connected!");
}

void setup() {
  Serial.begin(9600);
  setupWifi();

espClient.setTrustAnchors(&cert);
  espClient.setClientRSACert(&client_crt, &key);

client.setClient(espClient);
  client.setServer(AWS_IOT_ENDPOINT.c_str(), 8883);
}

void loop(){
  if (!client.connected()) {
    connectAWS();
  }
  if(millis()-lastMillis>3000){
    lastMillis=millis();
    Serial.print("Here!! -");
    Serial.print(NEXTION_END_STRING);
    Serial.print("Publishing message to AWS");
   // Publish a message to MQTT topic
    client.publish(mqttTopic, message.c_str());
  }
}

```

Answer

Please follow the steps here to validate your endpoint, certificate, policy etc: https://docs.aws.amazon.com/iot/latest/developerguide/diagnosing-connectivity-issues.html

Also, this similar question: https://repost.aws/questions/QUhpWzDaVhSiGgJD33s2jeVA/not-able-to-connect-esp8266-to-aws-core

Answer

I can see that in function connectAWS() you put a space between the method connect and subscribe.
That may be wrong.

ESP8266 NOT CONNECTING TO AWS IoT

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