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@bcks
Last active August 29, 2015 14:05
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Brooklyn Museum Bot
// runs under Node.js
var fs = require('fs'),
request = require('request'),
Twitter = require('node-twitter');
var twitterRestClient = new Twitter.RestClient(
'CONSUMER_KEY',
'CONSUMER_SECRET',
'TOKEN',
'TOKEN_SECRET'
);
function getObject() {
var objectId = Math.floor((Math.random() * 5205) + 1); // 5206 is last item as of August 20, 2014
var accessToken = 'BROOKYLN_MUSEUM_API_KEY';
var url = 'http://www.brooklynmuseum.org/opencollection/api/?method=collection.getItem&version=1&api_key='+accessToken+'&item_type=object&item_id='+objectId+'&image_results_limit=1&include_item_fields=true&max_image_size=768&format=json&include_html_style_block=false';
request(url, function (error, response, body) {
if (!error && response.statusCode == 200) {
var obj = JSON.parse(body);
if (obj.length != 0) {
if (typeof obj.response.object !== "undefined") {
getImage(obj.response.object);
} else {
console.log('Item not found, trying again.',obj);
getObject();
}
} else {
console.log('empty');
}
}
});
}
function getImage(object) {
if (typeof object.images !== "undefined") {
object.image = object.images[0].uri;
download(object.image, '/tmp/'+ object.id + '.jpg', function(){
//console.log('downloaded');
tweet(object);
});
} else {
console.log('No image detected. Trying again.',object);
getObject();
}
}
var download = function(uri, filename, callback){
request.head(uri, function(err, res, body){
if (res.headers['content-length'] < 40000) {
console.log('Image is too small. Trying again.',uri);
getObject();
} else {
request(uri).pipe(fs.createWriteStream(filename)).on('close', callback);
}
});
};
function tweet(object) {
console.log(object.title + ', ' + object.object_date);
console.log(object.uri);
console.log(object.image);
twitterRestClient.statusesUpdateWithMedia(
{
'status': object.title + ', ' + object.object_date + ' ' + object.uri,
'media[]': '/tmp/' + object.id + '.jpg'
},
function(error, result) {
fs.unlink('/tmp/' + object.id + '.jpg', function (err) {
if (err) throw err;
//console.log('successfully deleted /tmp/' + object.id + '.jpg');
});
if (error) {
console.log('Twitter Error: ' + (error.code ? error.code + ' ' + error.message : error.message));
setTimeout( getObject(), 10000);
}
//if (result) { console.log("Twitter response:", result); }
}
);
}
getObject();
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