CODEWITHSUNDEEP
javascriptjqueryapirestparse-platform
user2184016
user2184016

Reputation: 1

javascript / jquery / rest api with parse.com

I am using javascript and jquery to send a simple text push notification via parse.com using their rest api. This works :-

$.ajax({
    type: 'POST',
    headers: {
        'X-Parse-Application-Id': "1234567890",
        'X-Parse-REST-API-Key': "1234567890"
    },
    url: "https://api.parse.com/1/push",
    data: '{"channel": "","type":"ios","expiration_interval":86400,"data":{"alert":"canned alert","badge" :0,"sound":""}}',
    contentType: "application/json"
});

But this does not:-

 var my_msg = "canned alert";
 $.ajax({
     type: 'POST',
     headers: {
         'X-Parse-Application-Id': "1234567890",
         'X-Parse-REST-API-Key': "1234567890"
     },
     url: "https://api.parse.com/1/push",
     data: '{"channel": "","type":"ios","expiration_interval":86400,"data":{"alert":my_msg,"badge" :0,"sound":""}}',
     contentType: "application/json"
 });

I cannot find a way to replace successfully send an alert with a variable instead of "canned alert". I am not an experienced programmer but even the parse.com tesch support could not explain why; can anyone suggest a solution please?

Upvotes: 0

Views: 4689

Answers (3)

Christophe
Christophe

Reputation: 28124

Take the my_msg variable out of the single quotes in the second snippet, and it should behave exactly like the first one:

data: '{"channel": "","type":"ios","expiration_interval":86400,"data":{"alert":'+my_msg+',"badge" :0,"sound":""}}',

The way you wrote the second snippet, it looks like you confused a JSON string with an object literal.

Upvotes: 2

dfsq
dfsq

Reputation: 193261

You can pass data as an object, no need of any quotes, jQuery will take care of it:

var my_msg = "canned alert";
$.ajax({
    type: 'POST',
    headers: {
        'X-Parse-Application-Id': "1234567890",
            'X-Parse-REST-API-Key': "1234567890"
    },
    url: "https://api.parse.com/1/push",
    data: {
        channel: "",
        type: "ios",
        expiration_interval: 86400,
        data: {
            alert: my_msg,
            badge: 0,
            sound: ""
        }
    },
    contentType: "application/json"
});

Upvotes: 0

Pointy
Pointy

Reputation: 413717

You can use JSON.stringify to build the JSON from a plain object:

var my_msg = "canned alert";
$.ajax({
  type: 'POST',
  headers: {'X-Parse-Application-Id':"1234567890",'X-Parse-REST-API-Key':"1234567890"},
  url: "https://api.parse.com/1/push",
  data: JSON.stringify({
    "channel": "",
    "type":"ios",
    "expiration_interval": 86400,
    "data":{
      "alert": my_msg,
      "badge" :0,
      "sound":""
    }
  }),
  contentType: "application/json"
});

Using JSON.stringify will ensure that any special characters in "my_msg" will be correctly escaped, so that your JSON is guaranteed to be valid.

Upvotes: 0

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