ESP32 Forum

Code: Select all

httpd_uri_t sensorvalue_get = {
        .uri = "/sensorX",
        .method = HTTP_GET,
        .handler = sensorvalue_json_handler, // sensorvalue_handler,
        .user_ctx = NULL};

Code: Select all

esp_err_t sensorvalue_json_handler(httpd_req_t *req)
{
    // ESP_LOGI(TAG, "sensorvalue_json_handler");
    httpd_resp_set_type(req, "application/json");
    char json_string[300];
    create_json_from_sensordata(json_string, sensors.sensor1, sensors.sensor2, sensors.sensor3, sensors.timestamp);
    // ESP_LOGI(TAG, "%s", json_string);
    // httpd_resp_send(req, json_string, HTTPD_RESP_USE_STRLEN);

    httpd_resp_sendstr(req, json_string);
    httpd_resp_sendstr(req, NULL);

    return ESP_OK;
}

Code: Select all

setInterval(function () {
        var xhttp = new XMLHttpRequest();
        console.log("still running");
        xhttp.onreadystatechange = function () {
            if (this.readyState == 4 && this.status == 200) {
                console.log(this.responseText);
                //nums = this.responseText.split('+');
                obj = JSON.parse(this.responseText);
                document.getElementById('s1').innerHTML = obj.sensor1;
                document.getElementById('s2').innerHTML = obj.sensor2;
                document.getElementById('s3').innerHTML = obj.sensor3;
            }
        };
        console.log("send get");
        xhttp.open("GET", "/sensorX", true);
        xhttp.send();
    }, 1000);