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.

import board

import busio

from digitalio import DigitalInOut

import adafruit_esp32spi.adafruit_esp32spi_socket as socket

from adafruit_esp32spi import adafruit_esp32spi

import adafruit_requests as requests

# If you are using a board with pre-defined ESP32 Pins:

esp32_cs = DigitalInOut(board.ESP_CS)

esp32_ready = DigitalInOut(board.ESP_BUSY)

esp32_reset = DigitalInOut(board.ESP_RESET)

# If you have an externally connected ESP32:

# esp32_cs = DigitalInOut(board.D9)

# esp32_ready = DigitalInOut(board.D10)

# esp32_reset = DigitalInOut(board.D5)

spi = busio.SPI(board.SCK, board.MOSI, board.MISO)

esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)

print("Connecting to AP...")

while not esp.is_connected:

try:

esp.connect_AP(b'MY_SSID_NAME', b'MY_SSID_PASSWORD')

except RuntimeError as e:

print("could not connect to AP, retrying: ",e)

continue

print("Connected to", str(esp.ssid, 'utf-8'), "\tRSSI:", esp.rssi)

# Initialize a requests object with a socket and esp32spi interface

requests.set_socket(socket, esp)

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

response = requests.get(TEXT_URL)

print('-'*40)

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

print('-'*40)

response.close()