This is an example of how to do filepicker signed URLs in meteor, based on the documentation here:
var crypto = Npm.require('crypto');
var FILEPICKER_KEY = 'Z3IYZSH2UJA7VN3QYFVSVCF7PI';
var BASE_URL = 'https://www.filepicker.io/api/file';
Meteor.methods({
signedUrl: function(handle) {
var expiry = Math.floor(new Date().getTime() / 1000 + 60 * 60);
var policy = new Buffer(JSON.stringify({
handle: handle,
expiry: expiry
})).toString('base64');
var signature = crypto
.createHmac('sha256', FILEPICKER_KEY)
.update(policy)
.digest('hex');
return BASE_URL + "/" + handle +
"?signature=" + signature + "&policy=" + policy;
}
});
Note this will need to exist somewhere inside of your server
directory so you don't ship the key to the client. To demonstrate that it works, on the client side you can call it like so:
Meteor.call('signedUrl', 'KW9EJhYtS6y48Whm2S6D', function(err, url){console.log(url)});
If everything worked, you should see a photo when you visit the returned URL.