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facade/v0 package

Overview

Package facade is the permanent entry point of the "self-registering implementation" upgrade pattern (pattern E of the exploration; see ../../README.md).

The path callers import never changes and holds no business logic: it holds an interface value. A new implementation realm takes over simply by being deployed, because it registers itself from its own init. Nobody has to send a transaction to switch, which is the pattern's whole appeal and also its whole risk: whoever can deploy under the guarded prefix can take the realm.

Functions

Greet

func Greet(name string) string

Greet forwards to the live implementation.

Param

Command

gnokey query vm/qeval -remote "https://rpc.gno.land" -data "gno.land/r/moul/x/upgrade/selfreg/facade/v0.Greet()"

Result

Live

func Live() string

Live is the package path currently serving, or "" before the first deploy.

Command

gnokey query vm/qeval -remote "https://rpc.gno.land" -data "gno.land/r/moul/x/upgrade/selfreg/facade/v0.Live()"

Result

Register

func Register(cur realm, impl Impl)

Register makes the calling realm the live implementation. Called from the implementation's own init, so deploying IS the upgrade.

Param

Command

# WARNING: This command is running in an INSECURE mode.
# It is strongly recommended to use a hardware device for signing
# and avoid trusting any computer connected to the internet,
# as your private keys could be exposed.

gnokey maketx call -pkgpath "gno.land/r/moul/x/upgrade/selfreg/facade/v0" -func "Register" -args $'' -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -chainid "gnoland-1" -remote "https://rpc.gno.land" ADDRESSgnokey query -remote "https://rpc.gno.land" auth/accounts/ADDRESS
gnokey maketx call -pkgpath "gno.land/r/moul/x/upgrade/selfreg/facade/v0" -func "Register" -args $'' -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -broadcast=false ADDRESS > call.tx
gnokey sign -tx-path call.tx -chainid "gnoland-1" -account-number ACCOUNTNUMBER -account-sequence SEQUENCENUMBER ADDRESS
gnokey broadcast -remote "https://rpc.gno.land" call.tx
  

Render

func Render(_ string) string

Param

Command

gnokey query vm/qeval -remote "https://rpc.gno.land" -data "gno.land/r/moul/x/upgrade/selfreg/facade/v0.Render()"

Result

Seal

func Seal(cur realm)

Seal ends this realm's upgradeability, forever. Callable only by the implementation currently serving, because with no owner that is the only actor the facade already trusts. It grants nothing new: whoever could deploy under the prefix could already take the realm over, and this only lets them make that the last word.

One-way, and there is no rung above it.

Command

# WARNING: This command is running in an INSECURE mode.
# It is strongly recommended to use a hardware device for signing
# and avoid trusting any computer connected to the internet,
# as your private keys could be exposed.

gnokey maketx call -pkgpath "gno.land/r/moul/x/upgrade/selfreg/facade/v0" -func "Seal" -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -chainid "gnoland-1" -remote "https://rpc.gno.land" ADDRESSgnokey query -remote "https://rpc.gno.land" auth/accounts/ADDRESS
gnokey maketx call -pkgpath "gno.land/r/moul/x/upgrade/selfreg/facade/v0" -func "Seal" -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -broadcast=false ADDRESS > call.tx
gnokey sign -tx-path call.tx -chainid "gnoland-1" -account-number ACCOUNTNUMBER -account-sequence SEQUENCENUMBER ADDRESS
gnokey broadcast -remote "https://rpc.gno.land" call.tx
  

Stage

func Stage() int

Stage is the rung this realm is on. It only ever goes up.

Command

gnokey query vm/qeval -remote "https://rpc.gno.land" -data "gno.land/r/moul/x/upgrade/selfreg/facade/v0.Stage()"

Result

StageName

func StageName() string

StageName is Stage as the word a caller reads in Render.

Command

gnokey query vm/qeval -remote "https://rpc.gno.land" -data "gno.land/r/moul/x/upgrade/selfreg/facade/v0.StageName()"

Result

Version

func Version() string

Version reports the live implementation's own version string.

Command

gnokey query vm/qeval -remote "https://rpc.gno.land" -data "gno.land/r/moul/x/upgrade/selfreg/facade/v0.Version()"

Result