Add ping method for health endpoint

ollama/__init__.py

@@ -57,3 +57,4 @@ show = _client.show
 ps = _client.ps
 web_search = _client.web_search
 web_fetch = _client.web_fetch
+ping = _client.ping

ollama/_client.py

@@ -671,6 +671,10 @@ class Client(BaseClient):
       '/api/ps',
     )
   
+  def ping(self) -> str:
+    r = self._request_raw('GET', '/')
+    return r.text
+
   def web_search(self, query: str, max_results: int = 3) -> WebSearchResponse:
     """
     Performs a web search
@@ -1305,6 +1309,10 @@ class AsyncClient(BaseClient):
       ).model_dump(exclude_none=True),
     )
 
+  async def ping(self) -> str:
+    r = await self._request_raw('GET', '/')
+    return r.text
+  
   async def ps(self) -> ProcessResponse:
     return await self._request(
       ProcessResponse,

tests/test_client.py

@@ -879,6 +879,19 @@ def test_client_copy(httpserver: HTTPServer):
   assert response['status'] == 'success'
 
 
+def test_client_ping(httpserver: HTTPServer):
+  httpserver.expect_ordered_request('/', method='GET').respond_with_response(Response('Ollama is running', status=200))
+  client = Client(httpserver.url_for('/'))
+  response = client.ping()
+  assert response == 'Ollama is running'
+
+
+def test_client_ping_connection_error():
+  client = Client('http://localhost:1')
+  with pytest.raises(ConnectionError, match=CONNECTION_ERROR_MESSAGE):
+    client.ping()
+
+
 async def test_async_client_chat(httpserver: HTTPServer):
   httpserver.expect_ordered_request(
     '/api/chat',
@@ -1256,6 +1269,19 @@ async def test_async_client_copy(httpserver: HTTPServer):
   assert response['status'] == 'success'
 
 
+async def test_async_client_ping(httpserver: HTTPServer):
+  httpserver.expect_ordered_request('/', method='GET').respond_with_response(Response('Ollama is running', status=200))
+  client = AsyncClient(httpserver.url_for('/'))
+  response = await client.ping()
+  assert response == 'Ollama is running'
+
+
+async def test_async_client_ping_connection_error():
+  client = AsyncClient('http://localhost:1')
+  with pytest.raises(ConnectionError, match=CONNECTION_ERROR_MESSAGE):
+    await client.ping()
+
+
 def test_headers():
   client = Client()
   assert client._client.headers['content-type'] == 'application/json'