realtime api fetching and storing curl.php
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111
website/curl.php
111
website/curl.php
@ -3,6 +3,15 @@
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// The api key from Scooty's app/account: iPtAHWdOVLEtgkaymXoMHVVg
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// Below is the static html to generate the map, it can also be done more dynamically using https://github.com/LuminFire/leaflet-php but that might be overkill
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//debugging, enable all error reporting
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// ini_set('display_errors', 1);
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// ini_set('display_startup_errors', 1);
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// error_reporting(E_ALL);
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//measure script execution time
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$start_time = microtime(true);
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$a=1;
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// array of scooters, artist, title, description
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global $scooters;
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@ -21,26 +30,79 @@ $scooters = array(
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// for each scooter in array get the json (TODO, for each, safe to file/database?) $scooters is a multidimensional array: $scooter[0][0] = the first data (api url) of the first scooter, $scooter[1][0] = the first data (api url) of the second scooter, $scooter[0][1] = the artist name of the first scooter etcetc.
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$id = 0; //get the first scooter for now
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//$id = 0; //get the first scooter for now
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function saveLatestJSON(){
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global $scooters; //"import" the global variable into the function's scope
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//TODO if latestData.json = older than ..2 minutes...call the API again
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$id = 0; //start id
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foreach($scooters as $item) {
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$getJSON = callAPI($scooters[$id][0]); //abstract callAPI for neater reuse
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// GET RID OF JSON DECODE!
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$arr = json_decode($getJSON, true); // decode JSON data to PHP associative array
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// access values from the associative array
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$lat = $arr["data"]["attributes"]["lat"]; // get lattitude
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$lng = $arr["data"]["attributes"]["lng"]; // get longitude
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$pos = $lat.', '.$lng; // construct lat/lon for use in leafet
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$lst = $arr["data"]["attributes"]["lastLocationUpdate"]; // get time of last position
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$rnt = $arr["data"]["attributes"]["isRentable"]; // check if scooter is rentable,
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$act = $arr["data"]["attributes"]["state"]; // check if scooter is ACTIVE or MAINTAINANCE
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// access values from the multidimensional $scooters array
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$nam = $scooters[$id][1]; // get the artist name
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$tit = $scooters[$id][2]; // get the works title
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$des = $scooters[$id][3]; // get the works description
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//construct json with latest data
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$latestData[] = array( "ID" => $id,
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"lastPos" => $pos,
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"lastLocationUpdate" => $lst,
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"isRentable" => $rnt,
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"state" => $act,
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"name" => $nam,
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"title" => $tit,
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"desc" => $des);
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$id++;
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}
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return $latestData; //return array
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}
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// THIS ONLY NEEDS TO RUN EVERY 1 or 2 minutes, possibly in the background, als this should construct historical json as per tom martins post here: https://stackoverflow.com/questions/7895335/append-data-to-a-json-file-with-php/7895384
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$arrayToEcho = saveLatestJSON();
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$latestData = json_encode($arrayToEcho, JSON_FORCE_OBJECT); // force object accepts 0 as a key for the array and not NULL
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$file = './latestData.json';
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file_put_contents($file, $latestData, LOCK_EX);
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function makeMarker(int $id){
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global $scooters; //"import" the global variable into the function's scope
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$getJSON = callAPI($scooters[$id][0]); //abstract callAPI for neater reuse
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$arr = json_decode($getJSON, true); // decode JSON data to PHP associative array
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// access values from the associative array
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$lat = $arr["data"]["attributes"]["lat"]; // get lattitude
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$lng = $arr["data"]["attributes"]["lng"]; // get longitude
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$pos = $lat.', '.$lng; // construct lat/lon for use in leafet
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$lst = $arr["data"]["attributes"]["lastLocationUpdate"]; // get time of last position
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$rnt = $arr["data"]["attributes"]["isRentable"]; // check if scooter is rentable,
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$act = $arr["data"]["attributes"]["state"]; // check if scooter is ACTIVE or MAINTAINANCE
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//TODO make historical json file..
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//see: https://stackoverflow.com/questions/7895335/append-data-to-a-json-file-with-php/7895384
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//add something like:
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// $inp = file_get_contents('./latestData.json');
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// $tempArray = json_decode($inp);
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// $tempArray[] .= $latestData;
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// $jsonData = json_encode($tempArray);
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// file_put_contents('./latestData.json', $jsonData);
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function makeMarker(int $id){ // generate appropriate markers based on latest JSON
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$readJSON = file_get_contents('./latestData.json'); //read latest data
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$arr = json_decode($readJSON, true);
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$pos = $arr[$id]["lastPos"]; // get last known position
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$lst = $arr[$id]["lastLocationUpdate"]; // get time of last position
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$rnt = $arr[$id]["isRentable"]; // check if scooter is rentable,
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$act = $arr[$id]["state"]; // check if scooter is ACTIVE or MAINTAINANCE
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// access values from the multidimensional $scooters array
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$nam = $scooters[$id][1]; // get the artist name
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$tit = $scooters[$id][2]; // get the works title
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$des = $scooters[$id][3]; // get the works description
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$nam = $arr[$id]["name"]; // get the artist name
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$tit = $arr[$id]["title"]; // get the works title
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$des = $arr[$id]["desc"]; // get the works description
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//check scooter status and construct marker with corresponding icon
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@ -64,14 +126,20 @@ function makeMarker(int $id){
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};
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return $marker;
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}
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//// make date time file------
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// TODO save json to file?...mmm one big one? seperate ones, timestamped ones?
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///..mmm one big one? seperate ones, timestamped ones?
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// 60 second update interval
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// make timestamp file like original python one! to check for updates
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@ -100,9 +168,7 @@ function checkModified($file, $expiration){ //check if file is older than expira
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}
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function parseJSON(){
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}
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function callAPI($url){
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$curl = curl_init($url);
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@ -124,6 +190,7 @@ function callAPI($url){
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}
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?>
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@ -196,6 +263,7 @@ function callAPI($url){
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$id = 0; //start id
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foreach($scooters as $item) {
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// echo makeMarker($id);
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echo makeMarker($id);
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$id++;
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@ -219,3 +287,10 @@ function callAPI($url){
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</body>
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</html>
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<?php //end of measuring script execution time
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//end clock time in seconds
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$end_time = microtime(true);
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//calculate script execution time
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$execution_time = ($end_time - $start_time);
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echo " Execution time of script = ".$execution_time." sec";
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?>
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1
website/latestData.json
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1
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{"0":{"ID":0,"lastPos":"52.58619, 13.358061","lastLocationUpdate":"2020-10-09T08:00:29Z","isRentable":true,"state":"ACTIVE","name":"artist name 0","title":"title 0","desc":"desciption 0"},"1":{"ID":1,"lastPos":"52.58619, 13.358061","lastLocationUpdate":"2020-10-09T08:00:29Z","isRentable":true,"state":"ACTIVE","name":"artist name 1","title":"title 1","desc":"desciption 1"},"2":{"ID":2,"lastPos":"52.53619, 13.358061","lastLocationUpdate":"2020-10-09T08:00:29Z","isRentable":true,"state":"ACTIVE","name":"artist name 2","title":"title 2","desc":"desciption 2"}}
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