Add Flask app with single /datasets endpoint

Author: AliOsm

.gitignore

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+__pycache__

Procfile

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+web: gunicorn app:app

app.py

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+import random
+
+from flask import Flask, jsonify
+from datasets import DownloadMode, load_dataset
+
+app = Flask(__name__)
+
+print('Downloading the dataset...')
+masader = load_dataset('arbml/masader')
+
+
+@app.route('/datasets')
+def datasets():
+    global masader
+
+    if random.random() <= 0.1:
+        print('Re-downloading the dataset...')
+        masader = load_dataset('arbml/masader', download_mode=DownloadMode.FORCE_REDOWNLOAD)
+
+    return jsonify(list(masader['train']))

requirements.txt

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+Flask==2.1.2
+datasets==2.3.2
+gunicorn==20.1.0