Get Specific Data form request.post response in Python

Question

I am using sendgrid api to send email to users and then check the status,

res = requests.post(url)
print type(res)

and it prints type as <class 'requests.models.Response'>

on the Postman API client I am getting this:

{
"message": "error",
"errors": [
"JSON in x-smtpapi could not be parsed"
]
}

I want to fetch only the message value from response. I have written the following piece of code but doesn't work:

for keys in res.json():
    print str(res[keys]['message'])

Answer 1

You don't need to loop; just access the 'message' key on the dictionary returned by the response.json() method:

print res.json()['message']

It may be easier to follow what is going on by storing the result of the response.json() call in a separate variable:

json_result = res.json()
print json_result['message']

The reason Postman API returns an error message is because your POST didn't actually contain any data; you probably want to send some JSON to the API:

data = some_python_structure
res = requests.post(url, json=data)

When you use the json argument, the requests library will encode it to JSON for you, and set the correct content type header.