connectStation.ts

const connectStation = () => {
    setWalletStatus(WalletStatus.INITIALIZING)
    try {
      const provider = await tendermint()

      const supportedChains = await provider.getSupportedChains()
      log.debug('supportedChains', supportedChains)

      // If network not already there, add
      if (
        ![...supportedChains.official, ...supportedChains.unofficial].includes(
          network.name.toLowerCase()
        )
      ) {
        // Mainnet chanis seem to use the address prefix
        if (network.isMainnet) {
          stationNetwork.chainId = network.addressPrefix
        }
        await provider.addChain(stationNetwork)
      }

      provider.onAccountChanged(disconnect)
      provider.offAccountChanged(disconnect)

      await provider.getAccount(network.id)

      const offlineSigner = await getStationOfflineSigner(network.id)
      setSigner(offlineSigner)
      const client = await connectAndGetClient(offlineSigner)
      setClient(client)

      setWalletType('station')

      setWalletStatus(WalletStatus.WALLET_CONNECTED)
    } catch (e: any) {
      setWalletStatus(WalletStatus.ERROR)
      log.error('caught an error trying to connect to station', e)
      /*
      4001	-	User rejected request
      4100	-	The requested account and/or method has not been authorized by the user.
      4200	-	The requested method is not supported
      -32000	-	Invalid input.
      -32600	-	The JSON sent is not a valid Request object.
      -32602	-	Invalid method parameter(s).
      -32603	-	Internal JSON-RPC error.
       */

      let message = undefined

      switch (e.code) {
        case 4001:
          message = 'User rejected request'
          break
        case 4100:
          message =
            'The requested account and/or method has not been authorized by the user. Please click "connect" in the Cosmostation wallet'
          break
        case 4200:
          message = 'The requested method is not supported'
          break
        case -32000:
          message = 'Invalid input.'
          break
        case -32600:
          message = 'The JSON sent is not a valid Request object.'
          break
        case -32602:
          message = 'Invalid method parameter(s).'
          break
        case -32603:
          message = 'Internal JSON-RPC error.'
          break
        default:
          message = 'Unknown Cosmostation error'
          if (e instanceof InstallError) {
            message = 'Please install Cosmostation Wallet'
          }
      }

      toast.error(message, { toastId: `cosmostation-${e.code}` })

      setAutoConnectionType(undefined)
      throw e
    }