2018-08-01 07:49:06 -06:00
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# Blockbook Contributor Guide
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Blockbook is back-end service for Trezor wallet. Although it is open source, design and development of core packages
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is done by Trezor developers in order to keep Blockbook compatible with Trezor. If you feel you could use Blockbook
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for another purposes, we recommend you to make a fork.
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However you can still help us find bugs or add support for new coins.
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## Development environment
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Instructions to set up your development environment and build Blockbook are described in separated
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[document](/docs/build.md).
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## How can I contribute?
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### Reporting bugs
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### Adding coin support
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Trezor harware wallet supports over 500 coins, see https://trezor.io/coins/. You are free to add support for any of
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them to Blockbook. Actually implemented coins are listed [here](/docs/ports.md).
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You should follow few steps bellow to get smooth merge of your PR.
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> Altough we are happy for support of new coins we have not enough capacity to run them all on our infrastructure.
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> Actually we can run Blockbook instances only for coins supported by Trezor wallet. If you want to have Blockbook
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> instance for your coin, you will have to deploy your own server.
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#### Add coin definition
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Coin definitions are stored in JSON files in *configs/coins* directory. They are single source of Blockbook
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configuration, Blockbook and back-end package definition and build metadata. Since Blockbook supports only single
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coin index per running instance, every coin (including testnet) must have single definition file.
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All options of coin definition are described in [config.md](/docs/config.md).
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Because most of coins are fork of Bitcoin and they have similar way to install and configure their daemon, we use
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templates to generate package definition and configuration files during build process. It is similar to build Blockbook
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package too. Templates are filled with data from coin definition. Although build process generate packages
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automatically, there is sometimes necessary see intermediate step. You can generate all files by calling
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`go run build/templates/generate.go coin` where *coin* is name of definition file without .json extension. Files are
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generated to *build/pkg-defs* directory.
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Good examples of coin configuration are
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[*configs/coins/bitcoin.json*](configs/coins/bitcoin.json) and
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[*configs/coins/ethereum.json*](configs/coins/ethereum.json) for Bitcoin-like coins and different coins, respectively.
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Usually you have to update only few options that differ from Bitcoin definition. At first there are base information
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about coin in section *coin* – name, alias etc. Then update port information in *port* section. We keep port series as
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listed in [port registry](/docs/ports.md). Select next port numbers in series. Port numbers must be unique across all
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port definitions.
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In section *backend* update information how to build and configure backend service. When back-end package is built,
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build process downloads installation archive, verify and extract it. How it is done is described in
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[build guide](/docs/build.md#on-back-end-building). Naming conventions and versioning are described
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also in [build guide](/docs/build.md#on-naming-conventions-and-versioning). You have to update *package_name*,
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*package_revision*, *system_user*, *version*, *binary_url*, *verification_type*, *verification_source*, *extract_command* and
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*exclude_files*. Also update information whether service runs mainnet or testnet network in *mainnet* option.
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In section *blockbook* update information how to build and configure Blockbook service. Usually they are only
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*package_name*, *system_user* and *explorer_url* options. Naming conventions are are described
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[here](/docs/build.md#on-naming-conventions-and-versioning).
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Update *package_maintainer* and *package_maintainer_email* options in section *meta*.
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2018-08-10 02:46:32 -06:00
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Execute script *contrib/scripts/check-ports.go* that will check mandatory ports and uniquity of registered ports.
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2018-08-01 07:49:06 -06:00
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Execute script *contrib/scripts/generate-port-registry.go* that will update *docs/ports.md*.
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Now you can try generate package definitions as described above in order to check outputs.
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#### Add coin implementation
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#### Add tests
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#### Deploy public server
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