import hmac
import hashlib
import requests
from datetime import datetime


utc_str_date = datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S GMT")
secret = 'SECRET'
api_key = "API KEY"
url = 'https://rest.messagemedia.com/v1/messages'

# content = <HTTP-Verb> + "\n" + <Content-Type> + "\n" + <Date> + "\n" + <RequestPath> + "\n" + <RequestBody>

content = "Hello my world!!!"
destination_number = "+34650112233"
request_body = """
{
   "messages": [
 {
     "content" : "Helloworld!",
     "destination_number" : "+34650112233"
 }
   ]
}
"""
content = "POST" + "\n" + "application/json" + "\n" + utc_str_date + "\n" + '/v1/messages' + "\n" + request_body
signing = hmac.new(secret, content, hashlib.sha1)

# Authorization: MM-1 <API Key> <HMAC>
headers = {'Authorization': "MM-1 " + api_key + " " + signing.digest()}

# response = requests.get(url, headers=headers)
response = requests.post(url, headers=headers, data={'content': 'Helloworld!', 'destination_number': '+34650112233'})