User Manual

HTTP GET with Requests

The code makes a HTTP GET request to Adafruit's WiFi testing website

- http://wifitest.adafruit.com/testwifi/index.html (https://adafru.it/FpZ).

To do this, we'll pass the URL into requests.get() . We're also going to save the response

from

the server into a

variable named response .

While we requested data from the server, we'd what the server responded with. Since we already saved the

server's response , we can read it back. Luckily for us, requests automatically decodes the server's response into

human-readable text, you can read it back by calling response.text .

Lastly, we'll perform a bit of cleanup by calling response.close() . This closes, deletes, and collect's the response's

data.

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.

esp32_cs = DigitalInOut(board.D9)

esp32_ready = DigitalInOut(board.D10)

esp32_reset = DigitalInOut(board.D5)

print("Fetching text from %s"%TEXT_URL)

response = requests.get(TEXT_URL)

print('-'*40)

print("Text Response: ", response.text)

print('-'*40)

response.close()

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()

https://learn.adafruit.com/adafruit-airlift-featherwing-esp32-wifi-co-

processor-featherwing

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