Add support + Tests for using News API

tests/test_tiingo.py

@@ -3,7 +3,7 @@
 """Tests for `tiingo` package."""
 
 import csv
-import pytest
+
 from unittest import TestCase
 from tiingo import TiingoClient
 from tiingo.restclient import RestClientError
@@ -12,7 +12,7 @@ from tiingo.restclient import RestClientError
 # TODO
 # Add tests for
 # Invalid API key
-# Invalid ticker, etc
+# Invalid ticker
 # Use unittest asserts rather than regular asserts
 # Wrap server errors with client side descriptive errors
 # Coerce startDate/endDate to string if they are passed in as datetime
@@ -70,21 +70,42 @@ class TestTickerPrices(TestCase):
             response = self._client.list_tickers()
             assert not response
 
-# News Feed
+
 # tiingo/news
 class TestNews(TestCase):
 
     def setUp(self):
         self._client = TiingoClient()
+        self.article_keys = [  # Properties every article should have.
+            'description',
+            'title',
+            'url',
+            'publishedDate',
+            'tags',
+            'source',
+            'tickers',
+            'crawlDate',
+            'id'
+        ]
 
     def test_get_news_articles(self):
-        """Rewrite when method is implemented
+        """Confirm that news article work"""
-        """
+        search_params = {
-        with self.assertRaises(NotImplementedError):
+            "tickers": ["aapl", "googl"],
-            self._client.get_news()
+            "tags": ["Technology", "Bitcoin"],
+            "startDate": "2016-01-01",
+            "endDate": "2017-08-31",
+            "sources": ['washingtonpost.com', 'altcointoday.com'],
+            "limit": 10
+        }
+
+        articles = self._client.get_news(**search_params)
+        for article in articles:
+            assert all(key in article for key in self.article_keys)
 
     def test_get_news_bulk(self):
-        """Will fail because this API key lacks institutional license"""
+        """Fails because this API key lacks institutional license"""
+
         with self.assertRaises(RestClientError):
             value = self._client.get_bulk_news(file_id="1")
             assert value

tiingo/api.py

@@ -94,7 +94,7 @@ class TiingoClient(RestClient):
         """Return list of news articles matching given search terms
             https://api.tiingo.com/docs/tiingo/news
 
-            # If no tickers provided, just searches general tickers
+            # Dates are in YYYY-MM-DD Format.
 
             Args:
                 tickers [string] : List of unique Stock Tickers to search
@@ -105,28 +105,28 @@ class TiingoClient(RestClient):
                 offset (int): Search results offset, used for paginating
                 sortBy (string): "publishedDate" OR (#TODO: UPDATE THIS)
         """
-        # url = "tiingo/news"
+        url = "tiingo/news"
-        # params = {
+        params = {
-        #     'limit': limit,
+            'limit': limit,
-        #     'offset': offset,
+            'offset': offset,
-        #     'sortBy': sortBy
+            'sortBy': sortBy
-        # }
+        }
-        # # TBD: whether these commas are necessary if just pass list instead
-        # if tickers:
-        #     params['tickers'] = ",".join(tickers)
-        # if tags:
-        #     params['tags'] = ",".join(tags)
-        # if sources:
-        #     params['sources'] = ",".join(sources)
 
-        # if startDate:
+        # TBD: whether these commas are necessary if just pass list instead
-        #     params['startDate'] = startDate
+        if tickers:
-        # if endDate:
+            params['tickers'] = ",".join(tickers)
-        #     params['endDate'] = endDate
+        if tags:
+            params['tags'] = ",".join(tags)
+        if sources:
+            params['sources'] = ",".join(sources)
 
-        # response = self._request('GET', url, params=params)
+        if startDate:
-        # return response.json()
+            params['startDate'] = startDate
-        raise NotImplementedError
+        if endDate:
+            params['endDate'] = endDate
+
+        response = self._request('GET', url, params=params)
+        return response.json()
 
     def get_bulk_news(self, file_id=None):
         """Only available to institutional clients.
@@ -135,9 +135,9 @@ class TiingoClient(RestClient):
             file, as well as some metadata about that file.
         """
         if file_id:
-            url = "tiingo/news/bulk_download"
+            url = "tiingo/news/bulk_download/{}".format(file_id)
         else:
-            url = "tiingo/news/bulk_download{}".format(file_id)
+            url = "tiingo/news/bulk_download"
 
         response = self._request('GET', url)
         return response.json()