An example of Robonomics agent dealing with "foreign" payment token. Specifically Streamr's DATACoin in this case.

To get familiar with Streamr project have a look at the docs.

The agent waits for a new liability contract. At the moment it receives one the parameters (see below) are read and the publishing is begun.

For a simplicity the agent publishes random numbers but it's not a problem to turn it into something more useful.

A user specifies how long he/she desires to receive the data in seconds and the agent creates a thread and performs the task.

The user pays in proportion to the amount of time.

Note! The stream ID must be created on a user side

In the end of the task the whole history is stored in the result message which could be read via the link sent by email.

• /period - the amount of time in seconds
• /stream_id - Stream ID
• /email - email of the user

NixOS way:

nix bulid -f release.nix
source result/setup.bash (zsh)

ROS common way:

mkdir -p ws/src && cd ws/src
git clone https://github.com/vourhey/streamr_agent && cd .. 
catkin_make
source devel/setup.bash (zsh)

roslaunch streamr_agent agent.launch login:="<GMAIL_LOGIN>" email_password:="<GMAIL_APP_PASSWORD>" auth_token:="<STREAMR_API_TOKEN>"

There is the robonomics/promisee_node.py file for testing purpose only. Have a look at the content to figure out how it works

There is a Dapp for the project. Check it out!