Implements the handler against the chanevents store. A zero end_time
defaults to the server's current wall clock so callers can omit it for
"up to now" queries. max_events is clamped to a 10000-row hard cap that
also serves as the implicit default when the caller leaves the field at
zero. An unknown chan_point maps to NotFound; negative time bounds and
start_time after end_time map to InvalidArgument. The response sets
has_more whenever the page filled to the requested limit so the client
knows to keep paginating.
Also registers the new endpoint in the macaroon permissions table
under the channels:read entitlement.
Threads the chanevents.Store the daemon already constructs into the
frdrpcserver.Config so the upcoming GetChannelEvents handler has a
read path. Both standalone and subserver startup wire the same store
instance.
Move the gRPC/REST server lifecycle, macaroon service management, and
TLS setup from frdrpcserver.RPCServer to a new Faraday struct in the
faraday package. This leaves RPCServer as a pure RPC request handler
with only business logic methods.
The Faraday struct embeds *frdrpcserver.RPCServer and takes ownership
of all infrastructure concerns: gRPC/REST server creation, macaroon
service setup, TLS configuration, and start/stop lifecycle. The
frdrpcserver.Config is slimmed down to just Lnd and BitcoinClient.
The macaroons.go file is also moved from frdrpcserver to the faraday
package, as the macaroon constants are now used by the Faraday struct
directly.
priceCfgFromRPC only set granularity for CoinCap, leaving Coinbase and Bitfinex
with nil granularity. That caused backend validation to fail.
Set granularity via granularityFromRPC for Coinbase and Bitfinex too, and add
a regression test.
Since the code for creating and using a macaroon service is the same for
multiple projects (pool, loop, faraday & litd), the code has been
unified in lndclient. So this commit removes the macaroon service code
and instead uses the lndclient code.
Since the default key for the macaroon db is now a shared secret with
LND, faraday requires LND's admin macaroon so that this secret can be
derived. So this commit also updates all references of LND's `readme`
macaroon to the `admin` macaroon.
This commit moves the RequiredPermissions map to its own directory so
that projects importing the permissions list dont need to import all the
dependencies of the frdrpcserver package.
To avoid the frdrpc package having dependencies to other libraries and
making using the JSON/WASM stubs hard, we extract all the business logic
and RPC server code into its own package called frdrpcserver.
