Run Chainhook as a service for streaming new blocks

Chainhook can be run as a background service for streaming and processing new canonical blocks appended to the Bitcoin and Stacks blockchains.

When running chainhook as a service, if_this / then_that predicates can be registered by passing the path of the JSON file in the command line:

$ chainhook service start --predicate-path=./path/to/predicate-1.json --predicate-path=./path/to/predicate-2.json --config-path=./path/to/config.toml

Predicates can also be added dynamically. When the --predicate-path option is not passed or when the --start-http-api option is passed, chainhook will instantiate a REST API allowing developers to list, add, and removes predicates at runtime:

$ chainhook service start --config-path=./path/to/config.toml

$ chainhook service start --predicate-path=./path/to/predicate-1.json --start-http-api --config-path=./path/to/config.toml

A comprehensive OpenAPI specification explaining how to interact with the Chainhook REST API can be found here.