I am trying to obtain a .json
file from remote firebase server.
function fetchData(remoteJsonId){
var url = "https://myAppName.firebaseapp.com/topics/"+remoteJsonID;
console.log(url); //This variable expands to the full domain name which is valid and returns success both on wget and the browser
$http.jsonp(url).then(
function(resp){
},
function(err){
console.log(err.status) // This posts "404" on console.
}
);
}
But If I open url
in the browser the json file loads. Even if I wget url
the json file loads. But through angular it returns a 404
not found.
Now the .json
remote file has this structure:
[
{
"hello":"Europe"
},
{
"hello":"USA"
}
]
The above file can be fetched using $http.get() but not with $http.jsonp(). JSONP cant parse .json file with the above structure. How can I work around this?
You need to specify a ?callback=JSON_CALLBACK
in the URL that you pass to $http.jsonp
.
From Angular's $http.jsonp
documentation:
jsonp(url, [config]);
Shortcut method to perform JSONP request.
Parameters
Param Type Details
url string
Relative or absolute URL specifying the destination of the request.
The name of the callback should be the string JSON_CALLBACK.
That last line is what you're missing.
A simple example (using a Firebase database, not Firebase hosting):
var app = angular.module('myapp', []);
app.controller('mycontroller', function($scope, $http) {
var url = 'https://yourfirebase.firebaseio.com/25564200.json';
$http.jsonp(url+'?callback=JSON_CALLBACK').then(
function(resp){
console.log(resp.data); // your object is in resp.data
},
function(err){
console.error(err.status)
}
);
});
In case you want to see it working: http://jsbin.com/robono/1/watch?js,console