NOTE: the latest version is 2.0.1

Unavailable. Nobody can download this version any more, with elm or with the Lamdera compiler: github.com/quietgarden/elm-web3 is gone (deleted or private); Software Heritage not asked yet (this run's --swh-calls were used up); no fork with tag 1.0.0 found (5 same-name repos checked); no cached copy. Use another version.

README About Versions Source Modules

Web3.Wallet

Wallet connection state machine.

The wallet is modeled as an explicit state — you can't accidentally call a contract without a connected wallet because the compiler won't give you an Address from a Disconnected state.

case model.wallet of
    Connected info ->
        -- info.address is available here
        buy info.address amount


    _ ->
        -- can't buy, no address to use
        showConnectButton

type State

= Disconnected

| Connecting

| Connected ConnectedInfo

| WrongChain ConnectedInfo ChainId

| Error String

Wallet connection state. Every possible state is explicit.

type Msg

= WalletConnected String Int

| WalletDisconnected

| ChainChanged Int

| AccountChanged String

| WalletError String

| WalletsDiscovered (List WalletProvider)

Messages from the JS wallet port.

= RequestConnect

| RequestDisconnect

| RequestSwitchChain Int

| RequestSelectWallet String

Commands to send to JS via port.

type alias WalletProvider =

{ name : String

, icon : String

, rdns : String

}

A wallet provider discovered via EIP-6963.

update : ChainId -> Msg -> State -> State

Update wallet state from a port message.

connect : WalletCmd

Command to request wallet connection.

disconnect : WalletCmd

Command to request wallet disconnection.

switchChain : ChainId -> WalletCmd

Command to switch chain.

selectWallet : String -> WalletCmd

Command to select a specific wallet by its RDNS identifier (EIP-6963).

selectWallet "io.metamask"

isConnected : State -> Bool

True if the wallet is in the Connected state.

getAddress : State -> Maybe Address

Extract the connected address, if any.

getChainId : State -> Maybe ChainId

Extract the connected chain ID, if any.

encode : WalletCmd -> Value

Encode a WalletCmd for the JS port.

decoder : Decoder Msg

Decode a Msg from the JS wallet port.

Modules