Simple "label".text change not working?

MIT App Inventor Help
1

I am new at this...so please bare with me.

Simple json call, looking for userdata = true in response
the set Name_Field.Text is not working.

image
image982×482 34.8 KB

image
image967×217 18.7 KB

image
image862×645 46.5 KB

Server side is pretty simple.

If I click the logoff button the IF statement for it works. But doing a json call and trying to get user data to the label on the screen doesn't work. I am wondering what it could be. I've hit beat my head on this for about 2 hours now.

<?php 
session_start();
include "./helpers/functions.php";


// Takes raw data from the request
$json = file_get_contents('php://input');

// Converts it into a PHP object
$data = json_decode($json);
$jsonArr = array();

openlog("myScriptLog", LOG_PID | LOG_PERROR, LOG_LOCAL0);

if($data->logoff == true){
    $sql = "SELECT * FROM users WHERE app_key = '".$data->app_key."';";
    $info = dbread($sql);
    if(isset($info[0])){
        syslog(LOG_WARNING, "log off request - userid = ".$data->app_key);
        $jsonArr['logoff'] = true;
    }
    else{
        syslog(LOG_WARNING, "no user found possible false request- ".$data->app_key);
        $jsonArr['logoff'] = false;
    }
    //send json response
    $jsonSend = json_encode($jsonArr);
    echo $jsonSend;
    
}
if($data->userinfo == true){
    $sql = "SELECT * FROM users WHERE app_key = '".$data->app_key."';";
    $info = dbread($sql);
    if(isset($info[0])){
        syslog(LOG_WARNING, "getting user data- ".$data->app_key);
        $jsonArr['userdata'] = true;
        $jsonArr['first'] = $info[0]['first'];
        $jsonArr['last'] = $info[0]['last'];
        $jsonArr['email'] = $info[0]['email'];
        $jsonArr['phone'] = $info[0]['phone'];
    }
    else{
        syslog(LOG_WARNING, "no user found possible false request- ".$data->app_key);
        $jsonArr['appdata'] = false;
    }
    //send json response
    $jsonSend = json_encode($jsonArr);
    echo $jsonSend;
}
closelog();
?>
2

Did you verify if the global response is not empty?
Where you save and how you save the key userdata?

3

Show your raw responseContent before attempting dictionary extract. What is coming back from the server?

4

Thanks guys for the hint to check the actual raw data being sent. I am slight embarrassed by this :rofl:

did a wireshark trace and saw this

image
image955×125 4.69 KB

then I realized I was not watching the apache error log, I was watch syslog.

image
image1409×48 3.17 KB

Modified my Server code to detect if the json key is actually set.

if(isset($data->logoff)){
    if($data->logoff == true){
        $sql = "SELECT * FROM users WHERE app_key = '".$data->app_key."';";
        $info = dbread($sql);
        if(isset($info[0])){
            syslog(LOG_WARNING, "log off request - userid = ".$data->app_key);
            $jsonArr['logoff'] = true;
        }
        else{
            syslog(LOG_WARNING, "no user found possible false request- ".$data->app_key);
            $jsonArr['logoff'] = false;
        }
    //send json response
    $jsonSend = json_encode($jsonArr);
    echo $jsonSend;
    }
    
    
}
if(isset($data->userinfo)){
    if($data->userinfo == true){
        $sql = "SELECT * FROM users WHERE app_key = '".$data->app_key."';";
        $info = dbread($sql);
        if(isset($info[0])){
            syslog(LOG_WARNING, "getting user data- ".$data->app_key);
            $jsonArr['userdata'] = true;
            $jsonArr['first'] = $info[0]['first'];
            $jsonArr['last'] = $info[0]['last'];
            $jsonArr['email'] = $info[0]['email'];
            $jsonArr['phone'] = $info[0]['phone'];
        }
        else{
            syslog(LOG_WARNING, "no user found possible false request- ".$data->app_key);
            $jsonArr['appdata'] = false;
        }
        //send json response
        $jsonSend = json_encode($jsonArr);
        echo $jsonSend;
    }
    
}

I am now seeing the text on screen

image