Instagram's JSONObject crash

eduzal

Hi all. I've been doing some stuff with Instagram's JSON file and seem to hit a wall. I have this function getImageFromJSON() and nodes is my Instagram object that receives the image, username and text from instagram pictures

jsonAgram = loadJSONObject(urlSearch); 
... 
void getImageFromJSON() {
  JSONArray instagramData = jsonAgram.getJSONArray("data");
  JSONObject entry = instagramData.getJSONObject(counter);
  JSONObject image1Data = entry.getJSONObject("images").getJSONObject("thumbnail");
  JSONObject username=entry.getJSONObject("user");
  JSONObject texto=entry.getJSONObject("caption");

  imageURL = image1Data.getString("url");
  instaUser = username.getString("username");
  instaText = texto.getString("text","");
  //instaText="";
  img = loadImage(imageURL);

  nodes.add(new Node(img, instaText, instaUser));
}

when there's no caption, i get JSONObject["caption"] is not a JSONObject when there's no text, instagram sets caption as null, so i'm trying to get a null test done. first i set texto as an empty JSONObject and then populate it depending on the result from the reading of the original JSON

 JSONObject texto=new JSONObject()
 if (entry.getJSONObject("caption").isNull("text")) {
   entry.setJSONObject("",texto).setString("text","");
 } else{
   texto=entry.getJSONObject("caption");
 }

well, actually it's not working. can anybody give me any idea on what's worng? tks

PhiLho

Might help to show what the Json data looks like.

eduzal

PhiLho, it's the usual instagram JSON

this is the populated caption. had to edit because it won't fit

{
  "data": [
    {
      "tags": [],
      "location": null,
      "link": "https://instagram.com/p/5fjwa9Pw9U/",
      "caption": {
        "id": "1035703700917521655",
        "text": "Happy birthday my belle!! @realmichellew",
        "from": {
          "id": "247944034",
          "profile_picture": "https://igcdn-photos-g-a.akamaihd.net/hphotos-    ak-xft1/t51.2885-19/11098624_1632794343609174_1724291661_a.jpg",
          "username": "beyonce",
          "full_name": "Beyoncé"
        },
        "created_time": "1437685523"
      },
      "type": "image",
      "id": "1035703698426105684_247944034",
      "likes": {
        "count": 1109338,
        "data": [
          {
            "id": "2139891168",
            "profile_picture": "https://instagramimages-a.akamaihd.net/profiles/anonymousUser.jpg",
            "username": "vivianyoung15",
            "full_name": "vivi young"
          },
          {
            "id": "2139891291",
            "profile_picture": "https://igcdn-photos-d-a.akamaihd.net/hphotos-ak-xaf1/t51.2885-19/s150x150/11280489_995679910477515_592937564_a.jpg",
            "username": "http___kai",
            "full_name": ""
          },
          {
            "id": "2139891685",
            "profile_picture": "https://igcdn-photos-h-a.akamaihd.net/hphotos-ak-xaf1/t51.2885-19/s150x150/11426655_1040237162667463_903684706_a.jpg",
            "username": "amarinuiriyaducksworth",
            "full_name": "AmarinuiriyaDucksworth"
          },
          {
            "id": "2139890419",
            "profile_picture": "https://igcdn-photos-h-a.akamaihd.net/hphotos-ak-xfa1/t51.2885-19/s150x150/11820524_415483101977735_1453389946_a.jpg",
            "username": "aryen007",
            "full_name": "aryen"
          }
        ]
      },
      "images": {
        "thumbnail": {
          "height": 150,
          "width": 150,
          "url": "https://scontent.cdninstagram.com/hphotos-xfa1/t51.2885-15/s150x150/e15/11244608_849999205068693_1115171276_n.jpg"
        },
        "low_resolution": {
          "height": 320,
          "width": 320,
          "url": "https://scontent.cdninstagram.com/hphotos-xfa1/t51.2885-15/s320x320/e15/11244608_849999205068693_1115171276_n.jpg"
        },

eduzal

this is the null data on the JSON

{
      "tags": [],
      "location": null,
      "link": "https://instagram.com/p/40I8Lnvw2y/",
      "caption": null,
      "type": "image",
      "id": "1023482335338630578_247944034",
      "likes": {
        "count": 1121139,
        "data": [
          {
            "id": "2139884104",
            "profile_picture": "https://igcdn-photos-c-a.akamaihd.net/hphotos-ak-xfa1/t51.2885-19/s150x150/11380094_370069016535858_1239310192_a.jpg",
            "username": "vaquita32548",
            "full_name": "Jessica Alejanda Soto"
          },
          {
            "id": "2139887592",
            "profile_picture": "https://igcdn-photos-g-a.akamaihd.net/hphotos-ak-xap1/t51.2885-19/s150x150/10818132_918065501573726_139670535_a.jpg",
            "username": "xoxo_madie_boss",
            "full_name": ""
          },
          {
            "id": "2139879962",
            "profile_picture": "https://igcdn-photos-g-a.akamaihd.net/hphotos-ak-xfa1/t51.2885-19/s150x150/11424704_1477789859181550_813131506_a.jpg",
            "username": "lera6758",
            "full_name": ""
          },
          {
            "id": "2139883723",
            "profile_picture": "https://instagramimages-a.akamaihd.net/profiles/anonymousUser.jpg",
            "username": "pinzonrachel",
            "full_name": "Rachel Pinzón"
          }
        ]
      },

GoToLoop

http://forum.Processing.org/two/discussion/11742/how-to-deal-with-null-variables-in-json-file

eduzal

i've seen that, GoToLoop. The default value crashed anyway, unless I set it wrong(might be the case). I used it in setString(key, default), so I must use it in the getString(key, default)?

as stated above, instaText has the two values: ("text","")

void getImageFromJSON() {
  JSONArray instagramData = jsonAgram.getJSONArray("data");
  JSONObject entry = instagramData.getJSONObject(counter);
  JSONObject image1Data = entry.getJSONObject("images").getJSONObject("thumbnail");
  JSONObject username=entry.getJSONObject("user");
  JSONObject texto=entry.getJSONObject("caption");

  imageURL = image1Data.getString("url");
  instaUser = username.getString("username");
  instaText = texto.getString("text","");
  //instaText="";
  img = loadImage(imageURL);

  nodes.add(new Node(img, instaText, instaUser));
}

GoToLoop

Seems like JSONObject doesn't have support to set its entries w/ null! :-q

eduzal

well, it looks lihke after a few years I can have my first bug report to processing...

eduzal

fixed at last

if (entry.isNull("caption")) {
    instaText="";
  } else {
    JSONObject texto=entry.getJSONObject("caption");
    instaText = texto.getString("text");
  }

GoToLoop

Oh, long time! :-h Glad you've finally made it. <:-P
But I wonder how recent is that isNull() method? :P
https://Processing.org/reference/JSONObject_isNull_.html

Chrisir

can you post the entire code?

eduzal

all the data that i push is hard data except the picture caption, so i had to have a check for the availability of the JSONObject.

void getImageFromJSON() {
  JSONArray instagramData = jsonAgram.getJSONArray("data");
  JSONObject entry = instagramData.getJSONObject(counter);
  JSONObject image1Data = entry.getJSONObject("images").getJSONObject("thumbnail");
  JSONObject username=entry.getJSONObject("user");
  if (entry.isNull("caption")) {
    instaText="";
  } else {
    JSONObject texto=entry.getJSONObject("caption");
    instaText = texto.getString("text");
  }

  imageURL = image1Data.getString("url");
  imgURL=split(imageURL, '?');
  instaUser = username.getString("username");
  img = loadImage(imgURL[0]);

  nodes.add(new Node(img, instaText, instaUser));
}

eduzal

i was updating the code today since instagram changed the rules and accesses to the api.