This splits the code from vspd.go into various other files which broadly
represent the functional areas of vspd - the main update function,
database intgrity checks and voting wallet consistency checks.
Code is just moved without any modifications.
The name blockConnected is not very accurate as this function is also
called when vspd is initializing. It doesnt depend on a block having
been connected at all, it can be called at any time.
Give the debug banner a unique look by changing its class to "danger",
and centering and bolding the text. This helps it to be more noticable
when displayed near other banners.
Rather than immediately returning an error if the cache is not
initialized, attempt to initialize it first. Without this change there
is only an attempt to initialize the cache once per minute.
A new middleware aborts any requests which require the data cache if the
cache is not yet initialized. An explicit error is returned so the admin
will be immediately aware what has gone wrong.
Previously, webpages were rendered and JSON responses were sent with
zero values, and with no indication of anything being wrong. This was
sometimes difficult to notice, and even when noticed the cause was not
immediately apparent.
Upgrade the dcrwallet dependency to pick up the new version of
txrules.StakePoolTicketFee which considers the status of DCP0012 in its
fee calculation.
Don't log errors returned by server.Shutdown. They are exceedingly
unlikely, and there is nothing which can be done about them.
Moving the "Listening on..." log closer to where the server is actually
started reduces the chance of confusion. Also, logging the parsed
listener.Addr() string instead of the provided config string provides
extra debugging detail.
The server will shutdown cleanly even if the passed context is already
canceled, so there is no need to pass a new context and blindly guess at
how long the server may need to stop.
Exporting this struct is a step towards breaking up the Start func into
a New func and Run func, enabling calling code to use:
api := webapi.New()
api.Run()
WebAPI is a more suitable name than server because it matches the
package name, and also it helps to distinguish WebAPI from the HTTP
server it uses internally (ie. webapi.server rather than server.server).
It's generally good practice to first create everything that can fail
and then create the final instance at once with the results versus doing
it piecemeal.
Piecemeal creation is typically more error prone and, while not a huge
concern here, it also ends up needlessly creating objects that are just
thrown away in the event of a later error.
Storing references to the database/dcrd/dcrwallet clients inside the
cache struct means they don't need to be passed in every time the cache
is updated.
