eosc
is a cross-platform (Windows, Mac and Linux) command-line tool
for interacting with an EOS.IO blockchain.
- Superset of
cleos
functionalities - System contract interactions (EOS Mainnet)
- Capacity to craft any transaction
- Multisig facilities with added bells and whistles
- Integrated secure Vault, to sign transactions and broadcast them
- Supports offline signature flows, and cold wallets.
- Based on the
eos-go
library, and is easy to extend.
- Install from https://github.com/FSharesSaaS/fscc/releases
or
- Build from source with:
go get -u -v github.com/FSharesSaaS/fscc/eosc
or
- If you are on MacOS and use Homebrew:
brew install eoscanada/tap/eosc
Once installed run:
eosc vault create --import
to import your keys and follow instructions.
Then set your environment variable to the API URL of your choice, optionally setting some HTTP headers:
export EOSC_GLOBAL_API_URL=https://your-favorite-endpoint
export EOSC_GLOBAL_HTTP_HEADER_0="Authorization: bearer abcdef12323453452565676589"
export EOSC_GLOBAL_HTTP_HEADER_1="Origin: https://something...
Then you can run commands on the chain, ex:
eosc get info
eosc transfer fromaccnt toaccnt 0.0001 --memo "Sent with eosc"
These are supported environment variables:
-
All global flags (those you get from eosc –help) can be set with the following pattern: EOSC_GLOBAL_FLAG_NAME. The most useful are:
EOSC_GLOBAL_WALLET_URL
->--wallet-url
EOSC_GLOBAL_VAULT_FILE
->--vault-file
-
All (sub)command flags map to the following pattern: EOSC_COMMAND_SUBCOMMAND_CMD_FLAG_NAME (ex:
EOSC_FORUM_POST_CMD_REPLY_TO
->eosc forum post --reply-to=...
Special cases:
EOSC_GLOBAL_INSECURE_VAULT_PASSPHRASE
allows you to input the passphrase directly in an environment variable (useful for test automation, risky for most other uses)EOSC_GLOBAL_HTTP_HEADER_0
(available for indexes 0 to 25)
The cryptography used is NaCl (C implementation, Javascript port, Go version, which we use). And key derivation is Argon2, using the Go library here.
You can inspect the crypto code in our codebase regarding the
passphrase
implementation: it is 61 lines,
including blanks and comments.
Q: Why not use cleos
instead ?
A: cleos
is hard to compile, being in C++, as it requires a huge
toolchain. eosc
works on Windows where cleos
doesn't. eosc
contains a wallet inside, and is able to use it to sign some
transactions, cleos
interfaces with yet another program (keosd
) in
order to sign transactions, making it more complex to use. eosc
brings keosd
and cleos
together in a swiss-army-knify package.