MVP

nft_svc/Dockerfile

@@ -0,0 +1,14 @@
+FROM python:3.9
+
+WORKDIR /app
+
+COPY ./requirements.txt /app/requirements.txt
+
+RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
+
+COPY . /app
+
+EXPOSE 5000
+
+ENTRYPOINT [ "flask" ]
+CMD ["run", "--host=0.0.0.0", "--port=5000"]

nft_svc/app.py

@@ -0,0 +1,61 @@
+import base64
+import io
+
+from PIL import Image
+from flask import Flask, request, jsonify
+import matplotlib.image as mpimg
+import numpy as np
+import numba
+
+app = Flask(__name__)
+
+
+@numba.njit
+def optimized_mandelbrot(n_rows, n_columns, iterations, cx, cy):
+    x_cor = np.linspace(-2, 2, n_rows)
+    y_cor = np.linspace(-2, 2, n_columns)
+    output = np.zeros((n_rows,n_columns))
+    c = cx + 1j * cy
+    for i in range(n_rows):
+        for j in range(n_columns):
+            z = x_cor[i] + y_cor[j] * 1j
+            count = 0
+            for k in range(iterations):
+                z = (z*z) + c
+                count += 1
+                if np.abs(z) > 4:
+                    break
+            output[i, j] = count
+    return output.T
+
+
+def open_image_as_array(path):
+    return mpimg.imread(path)
+
+
+def get_encoded_img(arr):
+    img = Image.fromarray(arr).convert("L")
+    img_byte_arr = io.BytesIO()
+    img.save(img_byte_arr, format='PNG')
+    encoded_img = base64.encodebytes(img_byte_arr.getvalue()).decode('ascii')
+    return encoded_img
+
+
+@app.route('/getImage', methods=['GET'])
+def get_image():
+    name = request.args.get('name')
+    fractal = optimized_mandelbrot(1000, 1000, np.random.randint(2, 251), np.random.uniform(-1, 1), np.random.uniform(-1, 1))
+    img = get_encoded_img(fractal)
+    return jsonify({
+        "code": 0,
+        "image": img,
+        "first_time": 1
+    })
+
+
+def start_app():
+    app.run()
+
+
+if __name__ == '__main__':
+    start_app()

nft_svc/gunicorn_config.py

@@ -0,0 +1,10 @@
+# Gunicorn config variables
+loglevel = "info"
+errorlog = "-"  # stderr
+accesslog = "-"  # stdout
+worker_tmp_dir = "/dev/shm"
+graceful_timeout = 120
+timeout = 120
+keepalive = 5
+threads = 4
+workers = 4

nft_svc/requirements.txt

@@ -0,0 +1,6 @@
+matplotlib~=3.5.1
+numpy~=1.21.6
+numba~=0.55.1
+Pillow~=9.1.0
+Flask~=2.1.1
+gunicorn