The full Fetch.ai car park AEA demo is documented in its own repo here.
This demo allows you to test the AEA functionality of the car park AEA demo without the detection logic.
It demonstrates how the AEAs trade car park information.
Preparation instructions
Dependencies
Follow the Preliminaries and Installation sections from the AEA quick start.
Launch the OEF
In a separate terminal, launch a local OEF node (for search and discovery).
python scripts/oef/launch.py -c ./scripts/oef/launch_config.json
Keep it running for all the following.
Demo instructions
Create car detector AEA
First, create the car detector AEA:
aea create car_detector
cd car_detector
aea add connection fetchai/oef:0.1.0
aea add skill fetchai/carpark_detection:0.1.0
aea install
Second, add the ledger info to the aea config (car_detector/aea-config.yaml):
ledger_apis:
fetchai:
network: testnet
Alternatively to the previous two steps, simply run:
aea fetch fetchai/car_detector:0.1.0
cd car_detector
aea install
Create car data buyer AEA
Then, create the car data client AEA:
aea create car_data_buyer
cd car_data_buyer
aea add connection fetchai/oef:0.1.0
aea add skill fetchai/carpark_client:0.1.0
aea install
Second, add the ledger info to the aea config (car_data_buyer/aea-config.yaml):
ledger_apis:
fetchai:
network: testnet
Alternatively to the previous two steps, simply run:
aea fetch fetchai/car_data_buyer:0.1.0
cd car_data_buyer
aea install
Generate wealth for the car data buyer AEA
Add a private key to the car data buyer AEA:
aea generate-key fetchai
aea add-key fetchai fet_private_key.txt
To fund the car data buyer AEA on test-net you need to request some test tokens from a faucet.
First, print the address:
aea get-address fetchai
This will print the address to the console. Copy the address into the clipboard and request test tokens from the faucet here. It will take a while for the tokens to become available.
Second, after some time, check the wealth associated with the address:
aea get-wealth fetchai
Alternatively, to the previous steps, simply run:
aea generate-wealth fetchai
Update skill configurations
Then, in the car detector AEA we disable the detection logic:
aea config set vendor.fetchai.skills.carpark_detection.shared_classes.strategy.args.db_is_rel_to_cwd False --type bool
Run both AEAs
Finally, run both AEAs from their respective directories:
aea run --connections fetchai/oef:0.1.0
You can see that the AEAs find each other, negotiate and eventually trade.
Cleaning up
When you're finished, delete your AEAs:
cd ..
aea delete car_detector
aea delete car_data_buyer
Communication
This diagram shows the communication between the various entities as data is successfully sold by the car park AEA to the client.