tf-serving-post-request.py

import base64
import requests

file = 'image.jpeg'
# predict is the method name
# /models/detection is the model path
url = 'http://localhost:8501/v1/models/detection:predict'    
content = open(file, 'rb').read()
# encode binary data to b64 before json encode
content = base64.b64encode(content)
r = requests.post(url, json = {
    'signature_name': 'sig_name',
    'inputs': {
        'images':[{"b64": content}]
    }
})
print(r.text)