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GETTING_STARTED.md

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Getting started

This is a guide on how to quickly start using the SDK to build your idea, so it is more a guide for clients of the SDK rather than for contributors to the SDK, although anyone can benefit from it.

Warning

  • The steps below are only suitable for development environments.
  • Postgres username and password are placeholders and should be changed.

Project Overview

The project is divided into two main parts:

  1. cardano-services consists of several backend applications:

    • Provider server: a REST API server that can query Cardano data and submit transactions.
    • Projector: chain follower that projects blocks into PostgreSQL database.

  2. Libraries meant to help with concepts like: key management, cryptography high level helpers, input selection, and many more. Two important libraries worth mentioning are:

    • wallet: provides an opinionated, ready-to-use light wallet abstraction. It uses pretty much all of the other client libraries.
    • web-extension: has the ingredients to build your idea as a web extension.

Starting the Provider Services on Preprod testnet

This section covers how to get cardano-services started on the preprod testnet, and begin building your idea or just explore.

Starting mainnet or preview is a more advanced topic, and is discouraged in the 'Getting Started' phase as it requires additional settings.

Prerequisites:

  1. Docker compose V2 or later
  2. cardano-js-sdk project is cloned locally. No need to install or build.
  3. An x86-64 machine. It will not work on an ARM computer (like Apple M1 chips). This guide is tested on Ubuntu.

Option1: docker compose:

  • This option uses docker compose to start the bare minimum services.
  • Start Preprod network services:
$ ./scripts/preprod-network.sh up
  • Stop Preprod network services:
$ ./scripts/preprod-network.sh down
  • Dump the rendered docker compose file:
$ ./scripts/preprod-network.sh dump

Option2: using yarn:

If you are already comfortable with yarn, and have gone through the System Requirements, you can run one of the commands defined in cardano-services package.json,

# Start preprod network services
yarn preprod:up -d
# Stop preprod network services
yarn preprod:down

Next steps

  1. Wait for all services to be healthy.
  2. Each provider from cardano-services has an openApi spec describing the REST interface. For example:
  3. More advanced examples of using the SDK are in the e2e tests. Explore these examples on how to use the wallet and the client libraries.