# FVM Notes

## Full actor deployment flow to a local FVM net

The flow is broken up into 2 parts:
1. The actor *code* is deployed to the network. The actor code's handle is its CID
2. A new *instance* of an actor with code [CID] gets deployed to the network

### Start a local network
Full instructions [here](https://lotus.filecoin.io/developers/local-network/)

For convenience, env vars to set:

export LOTUS_PATH=~/.lotus-local-net
export LOTUS_MINER_PATH=~/.lotus-miner-local-net
export LOTUS_SKIP_GENESIS_CHECK=_yes_
export CGO_CFLAGS_ALLOW="-D__BLST_PORTABLE__"
export CGO_CFLAGS="-D__BLST_PORTABLE__"

To get the network started (on `experimental/fvm-m2` branch)
`lotus daemon`
`lotus-miner run --no-ync`

To deploy actor code:
`lotus chain install-actor <path to wasm>`
> Should output:
> sending message...
gas limit: 1230014237
waiting for message to execute...
Actor Code CID: bafk2bzacebinyzouaopuvpn5r55zhzamfvdy3xfvhwvyhn6jrorkqnuljtihk
Installed: true

To instantiate actor code:
`lotus chain create-actor <actor-cid> <encoded-params>`
> sending message...
waiting for message to execute...
ID Address: t01001
Robust Address: t2sfrzvqn4yvgsisn3fguiqhz45fscitdwhfun6oq

You have 2 addresses return that are the address of the actors.

### How to get the state of your actor

$ lotus state get-actor <your-actor-address>

> Address: t01006
Balance: 0 FIL
Nonce: 0
Code: bafk2bzaced5yvsgk4zjv5hko5zdth5pnmjntjxoscrfboq4oybtndoei4gm2s (<unknown>)
Head: bafy2bzacebmkw6qgjwwtsrkqqa5jfqrnpnfr3q6dtsga6jo4se56meueuslq2

$ lotus chain get <Head-value>

> [
0,
{
"/": "bafy2bzaceamp42wmmgr2g2ymg46euououzfyck7szknvfacqscohrvaikwfay"
}
]

My state is

pub struct State {
    pub count: u64,
    pub name_register: Cid,
}

so my counter is 0 and I have the Cid link to query to get the map values.

### Open questions
-