Bitcoin Service

[NicolasMahe]

This is a proposal of a service. Feel free to contribute by sharing your feedbacks, implementing a part of it and share it here.

Description

We should definitely create a Bitcoin service that can fetch block's data, transaction's data, address's balance.
It can also emit events when a new block is mined or when the balance of an address changes.
This service could also sign and broadcast transaction.

The service could use a Web API like:

• https://blockexplorer.com/api-ref
• https://www.blockchain.com/en/api
• https://www.blockcypher.com/
• https://btc.com/api-doc
• https://bitpay.com/api

Or the service could start a thin bitcoin client for a better security/verification/trust?

Tasks suggestions

Fetch an address balance

This task should return the balance of an given address. It could also return more information like: total received, total sent, number of transactions.
The minimum input should be the address.
The minimum output should be the balance of the given address in BTC.

Fetch a block's data

This task should return the data of a given block like difficulty, the transactions' hash, the miner, the merkle root, etc...
The minimum input should be the hash of the block.

Fetch a transaction's data

This task should return the data of a given transaction.
The minimum input should be the hash of the transaction.

Broadcast a transaction

This task should broadcast an already signed transaction.

Events suggestions

New block

This event should be emitted every time a new block is mined.
This event should send the block's data as well.

[NicolasMahe]

A dedicated repo has been created: https://github.com/mesg-foundation/service-bitcoin