# Connecting to an Electronic Research Notebook

In the following we will show you how to connect and save data to an Electronic Research Notebook(ERN) using its API

 ```{admonition}  Requirements
 :class: Hint

1. A device capable to connecting to the internet we have used a Pico W for this example

2. Access to an ERN, we used [RSpace an open source ERN](https://www.researchspace.com/)
```

The first part of the tutorial is the same as how to connect over [http](/Tutorials/Pico/tut_pico_wifi.md)

We need to edit our `settings.toml` file in the CIRCUITPY drive to add the following variables

Fill in the URL you wish to connect to, including the `https://`
RSPACE_URL = ""

FIll in your RSpace API_key
RSPACE_APIKEY = ""

```{admonition} API end point
for the `RSPACE_URL` you should take the URL to your Rspace instance and add `/api/v1` at the end to give the correct end point

```

```{warning}
Remember this information is stored in plain text and so can be read by anyone with access to the Pico
```

## Code set-up

Now we can program our Pico to send data over WiFi to our ERN.

Below is an example for sending temperature and time data to an ERN.

```python

import os
import adafruit_connection_manager
import wifi
import adafruit_requests
import microcontroller
import time

#Retrieve variables from settings.toml
ssid = os.getenv("WIFI_SSID")
password = os.getenv("WIFI_PASSWORD")

# Initalize Wifi, Socket Pool, Request Session
pool = adafruit_connection_manager.get_radio_socketpool(wifi.radio)
ssl_context = adafruit_connection_manager.get_radio_ssl_context(wifi.radio)
requests = adafruit_requests.Session(pool, ssl_context)

# This code will scan for available Wifi networks
# Can comment out if you know what you wish to connect to
for network in wifi.radio.start_scanning_networks():
    print("\t%s\t\tRSSI: %d\tChannel: %d" % (str(network.ssid, "utf-8"),
            network.rssi, network.channel))
wifi.radio.stop_scanning_networks()

# Connect to the Wi-Fi network
print(f"\nConnecting to {ssid}...")
try:
    wifi.radio.connect(ssid, password)
except OSError as e:
    print(f"❌ OSError: {e}")
print("✅ Wifi!\n")

temp = microcontroller.cpu.temperature
timetrial = time.monotonic()
json_data = {  "name": "hackathon iot cpu_temp " + str(time.time()),
    "fields": [ { "content": "cpu_temp: " + str(temp) + ", time: " + str(timetrial) } ] }
print(f" | ✅ Sending JSON ('key':'value'): {json_data}")

ern_url = os.getenv("RSPACE_URL") + "/documents"
with requests.post(ern_url, json = json_data, headers = {"apiKey" : os.getenv("RSPACE_APIKEY")}) as response:
        json_resp = response.json()
        print(f" | ✅ '{json_resp}' ")
        print("-" * 80 + "\n")
```