TEZOS

See https://www.tezos.com/ for more information about the project.

Build instructions

To compile Tezos, you need an OCaml compiler (version 4.03.0) and all the libraries listed in src/tezos-deps.opam. To install all the required dependencies, we strongly recommand to install OPAM, the OCaml package manager, and then to run the following command:

make build-deps

Then, to compile the project, simply run:

make

This should produce three binaries:

• tezos-node: the tezos daemon itself;
• tezos-client: a minimal command-line client;
• tezos-protocol-compiler: a protocol compiler used for developing new version of the economical protocol.

Currently Tezos is developped/tested under Linux only. It should work on mac OS, but this has not been tested recently. The Windows port is in progress.

Running the node in a sandbox

To run a single instance of a Tezos node in a sandbox mode:

./tezos-node -sandbox /path/to/a/custom/data/dir -rpc-port 8732

This "sandboxed" node will not participate to the P2P network, but it accepts RPC from the local host on port 8732. See below from more details on the RPC interface.

Running the node

There is not an official running Tezos network yet. But you might run a local test network. To run a node that accept incoming connections, simply run:

./tezos-node

It will listen to incoming connection on 0.0.0.0:9732 (and [::]:9732). All useful data are stored into ${HOME}/.tezos-node/, e.g. a default configuration file was generated: ${HOME}/.tezos-node/config.

To create multiple nodes on the same machine, it is possible to duplicate and edit ${HOME}/.tezos-node/config while taking care not to share paths for accessing the database or any other data file (cf. options db.store ; db.context ; net.peers and protocol.dir).

Another possibility is to let Tezos generate a config file by specifying options on the command line. For instance, if ${DIR}/config does not exist, the following command will generate it and replace the default values with the values from the command line arguments:

./tezos-node -base-dir ${DIR} -net-port 9733 -net-addr 127.0.0.1

The Tezos server has a built-in mechanism to discover peers on the local net (using UDP packets broadcasted on port 7732).

If this mechanism is not sufficient, one can provide Tezos with a list of initial peers, either by editing the option net.bootstrap.peers in the config file, or by specifying a command line parameter:

./tezos-node -base-dir ${DIR} -net-port 2023 -net-addr 127.0.0.1 \
             -net-bootstrap-peers '[("127.0.0.1", 2021);("127.0.0.1", 2022)]'

If ${DIR}/config exists, the command line options override those read in the config file. Tezos never modifies the content of an existing ${DIR}/config file.

./tezos-node -config-file ${DIR}/config

JSON/RPC interface

The tezos node provides a JSON/RPC interface. Note that it is an RPC, and it is JSON based, but it does not follow the "JSON-RPC" protocol. It is not active by default and it should be explicitely activated with the rpc-port option. Typically, if you are not trying to run a local network and just want to explore the RPC, you should run:

./tezos-node -sandbox /path/to/a/custom/data/dir -rpc-port 8732

The RPC interface is self-documented and the tezos-client is able to pretty-print the list of available RPCs. For instance, for the list of RPC provided by the Shell:

./tezos-client rpc list

And, for the list of RPC attached to the "genesis" bloc, including the RPC provided by the associated economical-protocol version:

./tezos-client rpc list /blocks/genesis/

You might also get the JSON schema describing the expected input and output of a RPC. For instance:

./tezos-client rpc schema /block/genesis/hash

Note: you might get the same information, but as a raw JSON object, with a simple HTTP request:

wget --post-data '{ "recursive": true }' -O - http://127.0.0.1:8732/describe
wget --post-data '{ "recursive": true }' -O - http://127.0.0.1:8732/describe/blocks/genesis
wget -O - http://127.0.0.1:8732/describe/blocks/genesis/hash

The minimal CLI client

Work in progress.

See ./tezos-client -help for the current list of available commands.