:gem: [Feature] Working example with httpx post

examples/chat_with_post.py

@@ -0,0 +1,57 @@
+import ast
+import httpx
+import json
+import re
+
+
+chat_api = "http://localhost:22222"
+api_key = "sk-xxxxx"
+requests_headers = {}
+
+requests_payload = {
+    "model": "precise",
+    "messages": [
+        {
+            "role": "user",
+            "content": "search and tell me today's weather of california",
+        }
+    ],
+    "stream": True,
+    "invocation_id": 1,
+}
+
+with httpx.stream(
+    "POST",
+    chat_api + "/chat/completions",
+    headers=requests_headers,
+    json=requests_payload,
+    timeout=httpx.Timeout(connect=20, read=60, write=20, pool=None),
+) as response:
+    # https://docs.aiohttp.org/en/stable/streams.html
+    # https://github.com/openai/openai-cookbook/blob/main/examples/How_to_stream_completions.ipynb
+    response_content = ""
+    for line in response.iter_lines():
+        remove_patterns = [r"^\s*data:\s*", r"^\s*\[DONE\]\s*"]
+        for pattern in remove_patterns:
+            line = re.sub(pattern, "", line).strip()
+
+        if line:
+            try:
+                line_data = json.loads(line)
+            except Exception as e:
+                try:
+                    line_data = ast.literal_eval(line)
+                except:
+                    print(f"Error: {line}")
+                    raise e
+            # print(f"line: {line_data}")
+            delta_data = line_data["choices"][0]["delta"]
+            finish_reason = line_data["choices"][0]["finish_reason"]
+            if "role" in delta_data:
+                role = delta_data["role"]
+            if "content" in delta_data:
+                delta_content = delta_data["content"]
+                response_content += delta_content
+                print(delta_content, end="", flush=True)
+            if finish_reason == "stop":
+                print()