SoundCloud API - genres and filter parameter of /tracks endpoint - api

I am using the SoundCloud API for a web application.
With the /tracks endpoint, I have two troubles below.
1. When I send a request with an invalid genres parameters, does the /tracks endpoint return 503 (Service Unavailable)?
When I intentionally use a condition which will not match any tracks with the q parameter like
http://api.soundcloud.com/tracks?q=ewkqtieorak&client_id=MY_CLIENT_ID&format=json&_status_code_map%5B302%5D=200
, responses are empty array as I expect, but with the genres parameter like
http://api.soundcloud.com/tracks?genres=hoge&client_id=MY_CLIENT_ID&format=json&_status_code_map%5B302%5D=200
, responses are always 503 (I tried about 500 times).
The /tracks endpoint return status 503 so often even with existing genres that I am not sure it means there are not such genres or SoundCloud is having a server trouble. Are there any ways to distinguish them?
2. It seems that the filter parameter doesn't work correctly.
Example requests are below. I wanted streamable tracks and added "streamable" as a filter parameter, but response tracks include some unstreamable tracks. Am I using it incorrectly?
http://api.soundcloud.com/tracks?filter=streamable&genres=electronica&client_id=MY_CLIENT_ID&format=json
http://api.soundcloud.com/tracks?filter=streamable&order=hotness&genres=jazz%2Cclassical&bpm[from]=0&bpm[to]=100&created_at[from]=2011-11-24%2000%3A00%3A00&created_at[to]=2012-02-22%2000%3A00%3A00&limit=5&client_id=MY_CLIENT_ID&format=json&_status_code_map[302]=200
http://api.soundcloud.com/tracks?filter=streamable&order=hotness&genres=jazz%2Cclassical&bpm[from]=0&bpm[to]=100&created_at[from]=2012-01-03%2000%3A00%3A00&created_at[to]=2012-04-02%2000%3A00%3A00&limit=30&client_id=MY_CLIENT_ID&format=json&_status_code_map[302]=200

Related

how to do pagination in RESTFUL API in a effective way?

I want to support pagination in my RESTful API.
My API method should return a JSON list of product via http://localhost/products/v1/getproductsbycategory, there are potentially thousands of products, and I want to page through them, so my request should look something like this:
public function getProductsByCategory($product_id,$page){
$perPage=5;
$start=($page-1)*$perPage;
$stmt=$this->conn->prepare("SELECT id,product,description,destination_url,expiry_type,savings,expiry,title,last_updated_on FROM products WHERE product_id=? ORDER BY last_updted_on DESC LIMIT $start ,$perPage");
$stmt->bind_param('i',$category_id);
$stmt->execute();
$productbycategory=$stmt->get_result();
$stmt->close();
return $productbycategory;
}
}
Firstly, in a RESTful call, the URL should ideally be noun-based and not verbs. We are using HTTP verbs (GET, PUT, POST, etc) to do an action on a noun - product in your case.
So, the URL should be http://localhost/products/v1/category
This effectively means you are GETting product of type v1 based on category. To get a given page number, simply add it as a query parameter -
http://localhost/products/v1/category?page=1
and handle it accordingly in your GET implementation corresponding to localhost/products/v1/category
Hope this helps.
Pagination has nothing to do with the JSON format per se - it's all about the query string in the URL and how the server interprets that.
Expanding on #Sampada's answer, you can have a URL like
http://localhost/products/v1/category?pageSize=5&pageNumber=2
and then you'll simply pick the corresponding elements on the server side (consider whether you'll want 0 or 1-based index for the pageNumber), and return them.
Additionally you can wrap this collection in an object that also provides links as to navigate to the previous/next/specific page - see HATEOAS & Richardson's Maturity Model level 3.

Youtube V3 api Load Multiple Playlists

I just want to load multiple playlists based on multiple playlistID's, the problem is playlistid can insert only not multiple comma seperated.
$PlylistIds = 'PLbVdwtmx18stbIbCu-bONmOSP4JLOPF9I, PL7668E699EA971785';
$response = file_get_contents("https://www.googleapis.com/youtube/v3/playlistItems?part=contentDetails,snippet&playlistId=$PlylistIds&maxResults=5&key=MYAPIKEY");
$searchResponse = json_decode($response,true);
print_r($searchResponse);
When i sent 1 playlist id it works but when i add two playlist ids its stop returning json result.
I don't want to use LOOP everytime to send request to google server, is it possible to load multiple playlistids at one request, instead of using multiple loops.
Thanks

Instagram API error

I using Instagram API to get user info
api = InstagramAPI(access_token=access_token)
profile = api.user(user_id="kallaucyahoocojp") # I try to put output data to profile variable here
And I get the below error:
DownloadError: Unable to fetch URL: https://api.instagram.com/v1/users/kallaucyahoocojp.json?access_token=(u'1191812153.f78cd79.d2d99595c79d4c23a7994d85ea0d412c', {u'username': u'kallaucyahoocojp', u'bio': u'\u30c4\u30a4\u30c3\u30bf\u30d5\u30a9\u30ed\u30ef\u30fc\u5897\u52a0\u30b5\u30fc\u30d3\u30b9', u'website': u'http://twitter\u30d5\u30a9\u30ed\u30ef\u30fc.jp', u'profile_picture': u'http://images.ak.instagram.com/profiles/anonymousUser.jpg', u'full_name': u'Kallauc', u'id': u'1191812153'})
Can anybody help me to fix it?
You need to pass the numeric-based user id, rather than the username. For example, instead of passing kallaucyahoocojp, you might pass 1234 if t
Here's how to get the ID if you don't have it:
Search for the instagram user id using this endpoint. In the python api:
api.user_search(q="kallaucyahoocojp", count=100)
Check the results for an exact string match on each user name while iterating through the results (calling .lower() to be sure to ignore potential case issues).
If you don't find the user in the first page of results, call to the next page using the max id returned.
Get the user id object from the returned from the matching users search result, then call your original function again with the numeric id.
A couple of very important notes:
Notice that I called the search function for users with a count of 100. You can pick any number, but contrary to other SO posts, the first user is not always the user you want in a search. The search can and will match partials, and not always according to an exact match first. How do I know? I have production instagram apps. I will qualify and say that usually the results are in the first 2-3 matches. Decide what is cheaper; repeated API calls that bring you closer to the limit, or 1 large bulk call where you are certain to get all the results.
The python Instagram API last I checked does a terrible job returning paging information. You actually get the paging URL which defeats the purpose of the python API itself to get additional pages. Your options are extract the next id parameter from the URL using urlparse or something similar, or fix the API to return the paging data as an object per the json (I've done both). What happens is the API itself is discarding part of the json and only giving you the URL which normally you don't want/need.
In your example, here's the search response:
{
"meta": {
"code": 200
},
"data": [
{
"username": "kallaucyahoocojp",
"bio": "ツイッタフォロワー増加サービス",
"website": "http://twitterフォロワー.jp",
"profile_picture": "http://images.ak.instagram.com/profiles/anonymousUser.jpg",
"full_name": "Kallauc",
"id": "1191812153"
}
]
}
Revising your call:
api = InstagramAPI(access_token=access_token)
profile = api.user(user_id="1191812153")
I should note that you may not need to call the user call if you did a search because you may simply have all the info you need. It will depend on what you are doing of course, so I am giving you the general method to use the rest of the user api.
For extracting profile info using Instagram API, userid is required.
The endpoint for extracting userID:
https://api.instagram.com/v1/users/search?q=[username]&access_token=[HERE]
The endpoint for extracting profile info:
https://api.instagram.com/v1/users/[userid]/?access_token=[HERE]
Note that before extracting information, check the login permissions for your access token.

Proper resource names of a REST API

Let's say we are making an invoice API. What is a more appropriate resource?
GET
paid_invoices
due_invoices
all_invoices
or
GET
invoices/all
invoices/due
invoices/paid
Additional question: If your API allows marking invoices as paid what's the proper resource?
PUT //where 3 is the id
invoices/3
or
PUT
pay_invoice/3
I would say:
GET /invoices returns all invoices;
A filter can return either paid or due invoices: GET /invoices?state=paid where state can be paid or due.
To mark an invoice as paid, you can either set the corresponding state to your resource, and then you just have to update (replace actually) it using PUT /invoices/<id>.
Alternatively, you can patch your resource: PATCH /invoices/<id>. This method requires a diff like state=paid for example.
It's just a matter of what you want to send to your API (a complete resource, or just the change to apply).
A non-REST solution could be to perform a PATCH request to /invoices/<id>/paid. It's not pure REST but it's ok.

RESTful API - How do I return different results for the same resource?

Question
How do I return different results for the same resource?
Details
I have been searching for some time now about the proper way to build a RESTful API. Tons of great information out there. Now I am actually trying to apply this to my website and have run into a few snags. I found a few suggestions that said to base the resources on your database as a starting point, considering your database should be structured decently. Here is my scenario:
My Site:
Here is a little information about my website and the purpose of the API
We are creating a site that allows people to play games. The API is supposed to allow other developers to build their own games and use our backend to collect user information and store it.
Scenario 1:
We have a players database that stores all player data. A developer needs to select this data based on either a user_id (person who owns the player data) or a game_id (the game that collected the data).
Resource
http://site.com/api/players
Issue:
If the developer calls my resource using GET they will receive a list of players. Since there are multiple developers using this system they must specify some ID by which to select all the players. This is where I find a problem. I want the developer to be able to specify two kinds of ID's. They can select all players by user_id or by game_id.
How do you handle this?
Do I need two separate resources?
Lets say you have a controller name 'Players', then you'll have 2 methods:
function user_get(){
//get id from request and do something
}
function game_get(){
//get id from request and do something
}
now the url will look like: http://site.com/api/players/user/333, http://site.com/api/players/game/333
player is the controller.
user/game are the action
If you use phil sturgeon's framework, you'll do that but the url will look like:
http://site.com/api/players/user/id/333, http://site.com/api/players/game/id/333
and then you get the id using : $this->get('id');
You can limit the results by specifying querystring parameters, i.e:
http://site.com/api/players?id=123
http://site.com/api/players?name=Paolo
use phil's REST Server library: https://github.com/philsturgeon/codeigniter-restserver
I use this library in a product environment using oauth, and api key generation. You would create a api controller, and define methods for each of the requests you want. In my case i created an entirely seperate codeigniter instance and just wrote my models as i needed them.
You can also use this REST library to insert data, its all in his documentation..
Here is a video Phil threw together on the basics back in 2011..
http://philsturgeon.co.uk/blog/2011/03/video-set-up-a-rest-api-with-codeigniter
It should go noted, that RESTful URLs mean using plural/singular wording e.g; player = singular, players = all or more than one, games|game etc..
this will allow you to do things like this in your controller
//users method_get is the http req type.. you could use post, or put as well.
public function players_get(){
//query db for players, pass back data
}
Your API Request URL would be something like:
http://api.example.com/players/format/[csv|json|xml|html|php]
this would return a json object of all the users based on your query in your model.
OR
public function player_get($id = false, $game = false){
//if $game_id isset, search by game_id
//query db for a specific player, pass back data
}
Your API Request URL would be something like:
http://api.example.com/player/game/1/format/[csv|json|xml|html|php]
OR
public function playerGames_get($id){
//query db for a specific players games based on $userid
}
Your API Request URL would be something like:
http://api.example.com/playerGames/1/format/[csv|json|xml|html|php]