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import os
import json
import requests
from requests.exceptions import RequestException
HF_ENDPOINT_URL = os.getenv("SAGEMAKER_ENDPOINT_NAME")
HF_ENDPOINT_TOKEN = os.getenv("HF_TOKEN")
assert HF_ENDPOINT_URL, "❌ HF_ENDPOINT_URL is not set"
assert HF_ENDPOINT_TOKEN, "❌ HF_ENDPOINT_TOKEN is not set"
HEADERS = {
"Authorization": f"Bearer {HF_ENDPOINT_TOKEN}",
"Content-Type": "application/json",
"Accept": "application/json",
}
def mistral_generate(
prompt: str,
max_new_tokens: int = 128,
temperature: float = 0.7,
) -> str:
"""
Call the Hugging Face Inference Endpoint that hosts Mistral-7B.
Returns the generated text, or an empty string on failure.
"""
payload = {
"inputs": prompt,
"parameters": {
"max_new_tokens": max_new_tokens,
"temperature": temperature,
},
}
try:
r = requests.post(
HF_ENDPOINT_URL,
headers=HEADERS,
json=payload,
timeout=90, # HF spins up cold endpoints too
)
r.raise_for_status()
data = r.json()
# HF Endpoints usually return a *list* of dicts
if isinstance(data, list) and data:
return data[0].get("generated_text", "").strip()
# Some endpoints return a single dict
if isinstance(data, dict) and "generated_text" in data:
return data["generated_text"].strip()
except RequestException as e:
print("❌ HF Endpoint error:", str(e))
if e.response is not None:
print("Endpoint said:", e.response.text[:300])
except Exception as e:
print("❌ Unknown error:", str(e))
return ""
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