User Manual

While some servers respond with text, some respond with json-formatted data consisting of attribute–value pairs.

CircuitPython_Requests can convert a JSON-formatted response from a server into a CPython dict. object.

We can also fetch and parse json data. We'll send a HTTP get to a url we know returns a json-formatted response

(instead of text data).

Then, the code calls response.json() to convert the response to a CPython dict .

HTTP POST with Requests

Requests can also POST data to a server by calling the requests.post method, passing it a data value.

You can also post json-formatted data to a server by passing json_data into the requests.post method.

Advanced Requests Usage

Want to send custom HTTP headers, parse the response as raw bytes, or handle a response's http status code in your

CircuitPython code?

We've written an example to show advanced usage of the requests module below.

print("Fetching JSON data from %s"%JSON_GET_URL)

response = requests.get(JSON_GET_URL)

print('-'*40)

print("JSON Response: ", response.json())

print('-'*40)

response.close()

data = '31F'

print("POSTing data to {0}: {1}".format(JSON_POST_URL, data))

response = requests.post(JSON_POST_URL, data=data)

print('-'*40)

json_resp = response.json()

# Parse out the 'data' key from json_resp dict.

print("Data received from server:", json_resp['data'])

print('-'*40)

response.close()

json_data = {"Date" : "July 25, 2019"}

print("POSTing data to {0}: {1}".format(JSON_POST_URL, json_data))

response = requests.post(JSON_POST_URL, json=json_data)

print('-'*40)

json_resp = response.json()

# Parse out the 'json' key from json_resp dict.

print("JSON Data received from server:", json_resp['json'])

print('-'*40)

response.close()