diff --git a/api/__init__.py b/api/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/api/repositories/__init__.py b/api/repositories/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/api/repositories/repos.py b/api/repositories/repos.py
new file mode 100644
index 0000000..68c1dc0
--- /dev/null
+++ b/api/repositories/repos.py
@@ -0,0 +1,56 @@
+from core.rest_client import RestClient
+
+
+class Repos(RestClient):
+    def __init__(self, api_root_url, **kwargs):
+        super(Repos, self).__init__(api_root_url, **kwargs)
+
+    def list_your_repos(self, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#list-your-repositories
+        """
+        return self.get("/user/repos", **kwargs)
+
+    def list_user_repos(self, username, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#list-user-repositories
+        :param username:  username
+        """
+        return self.get("/users/{}/repos".format(username), **kwargs)
+
+    def list_organization_repos(self, org, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#list-organization-repositories
+        :param org: orgnization name
+        """
+        return self.get("/orgs/{}/repos".format(org), **kwargs)
+
+    def list_all_public_repos(self, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#list-all-public-repositories
+        """
+        return self.get("/repositories", **kwargs)
+
+    def create_user_repo(self, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#create
+        """
+        return self.post("/user/repos", **kwargs)
+
+    def create_organization_repo(self, org, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#create
+        """
+        return self.post("/orgs/{}/repos".format(org), **kwargs)
+
+    def get_repo(self, owner, repo, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#get
+        """
+        return self.get("/repos/{}/{}".format(owner, repo), **kwargs)
+
+    def edit_repo(self, owner, repo, **kwargs):
+        """
+        https://developer.github.com/v3/repos/#edit
+        """
+        return self.patch("/repos/{}/{}".format(owner, repo), **kwargs)
diff --git a/core/__init__.py b/core/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/core/rest_client.py b/core/rest_client.py
new file mode 100644
index 0000000..bf07fbc
--- /dev/null
+++ b/core/rest_client.py
@@ -0,0 +1,58 @@
+import requests
+import json as json_parser
+
+
+class RestClient():
+    def __init__(self, api_root_url, username=None, password=None, token=None):
+        self.api_root_url = api_root_url
+        self.session = requests.session()
+        if username and password:
+            self.session.auth = (username, password)
+        elif token:
+            self.session.headers["Authorization"] = "token {}".format(token)
+
+    def get(self, url, **kwargs):
+        return self.request(url, "get", **kwargs)
+
+    def post(self, url, data=None, json=None, **kwargs):
+        return self.request(url, "post", data, json, **kwargs)
+
+    def options(self, url, **kwargs):
+        return self.request(url, "potions", **kwargs)
+
+    def head(self, url, **kwargs):
+        return self.request(url, "head", **kwargs)
+
+    def put(self, url, data=None, **kwargs):
+        return self.request(url, "put", data, **kwargs)
+
+    def patch(self, url, data=None, **kwargs):
+        return self.request(url, "patch", data, **kwargs)
+
+    def delete(self, url, **kwargs):
+        return self.request(url, "delete", **kwargs)
+
+    def request(self, url, method_name, data=None, json=None, **kwargs):
+        url = self.api_root_url + url
+        if method_name == "get":
+            return self.session.get(url, **kwargs)
+        if method_name == "post":
+            return self.session.post(url, data, json, **kwargs)
+        if method_name == "options":
+            return self.session.options(url, **kwargs)
+        if method_name == "head":
+            return self.session.head(url, **kwargs)
+        if method_name == "put":
+            return self.session.put(url, data, **kwargs)
+        if method_name == "patch":
+            if json:
+                data = json_parser.dumps(json)
+            return self.session.patch(url, data, **kwargs)
+        if method_name == "delete":
+            return self.session.delete(url, **kwargs)
+
+
+if __name__ == '__main__':
+    r = RestClient("http://httpbin.org")
+    x = r.post("/post", json={"a": "b"})
+    print(x.text)
diff --git a/github.py b/github.py
new file mode 100644
index 0000000..3a3da8e
--- /dev/null
+++ b/github.py
@@ -0,0 +1,54 @@
+from api.repositories.repos import Repos
+
+
+class Github():
+    def __init__(self, **kwargs):
+        self.api_root_url = "https://api.github.com"
+        self.repos = Repos(self.api_root_url, **kwargs)
+
+
+if __name__ == '__main__':
+    r = Github(token="xxxxx")
+    username = "zhangting85"
+    orgnname = "xxxx"
+
+    # case 1
+    data = {
+        "name": "Hello-WorldXXX",
+        "description": "This is your first repository",
+        "homepage": "https://github.com",
+        "private": False,
+        "has_issues": True,
+        "has_projects": True,
+        "has_wiki": True
+    }
+    x = r.repos.create_user_repo(json=data)
+    print(x.status_code)
+    assert x.status_code == 201
+
+    # case 2
+    x = r.repos.create_organization_repo(org=orgnname, json=data)
+    print(x.status_code)
+    assert x.status_code == 201
+
+    # case 3
+    x = r.repos.get_repo(username, "Hello-World")
+    print(x.status_code)
+    assert x.status_code == 200
+    print(x.text)
+
+    # case 4
+    data = {
+        "name": "Hello-World",
+        "description": "YYYY:This is your first repository ",
+        "homepage": "https://github.com",
+        "private": False,
+        "has_issues": True,
+        "has_projects": True,
+        "has_wiki": True
+    }
+
+    x = r.repos.edit_repo(username, "Hello-World", json=data)
+    print(x.status_code)
+    print(x.text)
+    assert x.status_code == 200