Olá, quero enviar um json simples utilizando a biblioteca arduinoJson6 utilizando o method POST da biblioteca ESP8266HTTPClient.h.
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <ArduinoJson.h>
const char* ssid = "ctc";
const char* password = "ctcwebapnew";
void setup () {
Serial.begin(115200);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting..");
}
}
void loop() {
if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status
HTTPClient http; //Declare object of class HTTPClient
http.begin("http://192.168.1.18:5000/postjson"); //Specify request destination
http.addHeader("Content-Type", "application/json"); //Specify content-type header
//http.addHeader("Content-Type", "text/plain"); //Specify content-type header
const int capacity = 6; //JSON_OBJECT_SIZE(3);
StaticJsonDocument<capacity> doc;
doc["teste1"] = 1;
doc["teste2"] = 2;
doc["teste3"] = 3;
//***** aqui dá o erro! *****
int httpCode = http.POST(doc); //Send the request
String payload = http.getString(); //Get the response payload
Serial.println(httpCode); //Print HTTP return code
Serial.println(payload); //Print request response payload
http.end(); //Close connection
} else {
Serial.println("ERRO AO CONECTAR AO WIFI!");
}
delay(5000); //Send a request every 5 seconds
}