The drand-client command-line interface application can be used to fetch randomness from a drand network. It is a CLI frontend for the drand client libraries.

Installation

From Source

This will require a working Golang installation. You'll also need the make command available.

git clone https://github.com/drand/drand
cd drand
make drand-client

From Docker

docker run drandorg/drand-client

Usage

Run drand-client --help for a list of supported options.

As an example, here is how to launch the client in order to read randomness for the current League of Entropy mainnet endpoints with automatic verification, failover and fastest-endpoint optimizations:

drand-client --watch \
--chain-hash 8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce \
--url http://api.drand.sh \
--url http://api2.drand.sh \
--url http://api3.drand.sh \
--url https://drand.cloudflare.com \
--relay /dnsaddr/api.drand.sh \
--relay /dnsaddr/api2.drand.sh \
--relay /dnsaddr/api3.drand.sh