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Pre-requisites (Server)

Ogmios is built using the great Haskell build tool cabal. You’ll also need git to clone the source code, that is:

  • git 2.11.*
  • cabal 3.*.*

Ogmios in itself is a rather small project, yet it’s using library directly from the ouroboros-network, cardano-ledger-specs and cardano-node projects. This is handy for re-using existing logic, but comes at the cost of several system dependencies that are required for building everything. Some may already be installed on your system, but the complete list is:

  • libsodium-dev 1.0.*
  • libgmp-dev 6.1.*
  • libssl-dev 1.1.*
  • libpcre3-dev 2.8.*
  • libsystemd-dev
  • zlib1g-dev 1.2.*
  • A custom revision of bitcoin-core’s secp256k1, with Schnorr signature support enabled:
    git clone
    cd secp256k1
    git reset --hard ac83be33d0956faf6b7f61a60ab524ef7d6a473a
    ./configure --prefix=/usr --enable-module-schnorrsig --enable-experimental
    make check
    sudo make install

🔨 Server

Clone the git repository from Github:

$ git clone --depth 1 --recursive --shallow-submodules
$ cd cardano-ogmios/server

Then, use cabal to compile the project source code from the server directory:

$ cabal build all

The first time, this may take a while as cabal needs to setup a compilation environment and to download a lot of dependencies. Subsequent executions are much faster.

From there, you can run Ogmios via cabal using the run command:

$ cabal run ogmios:exe:ogmios -- --help

Alternatively, you can instrument cabal to copy the compiled executable elsewhere so that you can run Ogmios all by itself:

$ cabal install ogmios:exe:ogmios --install-method=copy --overwrite-policy=always
$ ogmios --help

🔨 TypeScript Client

Clone the git repository from Github:

$ git clone --depth 1 --recursive --shallow-submodules
$ cd cardano-ogmios/clients/TypeScript

Then, use Yarn to install dependencies and compile the project source code from the client/TypeScript directory:

$ yarn install \
  && yarn build

📚 Documentation

The documentation can be generated from the TypeScript client workbench. Follow the instruction in the README to setup the TypeScript workspace, and then run:

$ yarn docs

This will generate documentation for the API and the TypeScript clients in /docs/static to be served by the static website generator Hugo.

Alternatively, you can also look at our User-Guide Github Workflow to see how its done.