We have currently this structure for the network configuration:
- This is the main configuration that you need to provide in order to add a new network.
```typescript
export interface NetworkConfig {
network: NetworkSettings
disabledFeatures?: SafeFeatures
disabledWallets?: Wallets
environment: SafeEnvironments
}
```
#### NetworkSettings
- It contains the Ethereum compatible network id, the network name, information about the native coin of that network and a boolean to indicate if the network is a testnet or a production network.
```typescript
export type NetworkSettings = {
id: ETHEREUM_NETWORK,
backgroundColor: string,
textColor: string,
label: string,
isTestNet: boolean,
nativeCoin: Token,
}
```
- Currently supported Ethereum compatible networks:
```typescript
export enum ETHEREUM_NETWORK {
MAINNET = 1,
MORDEN = 2,
ROPSTEN = 3,
RINKEBY = 4,
GOERLI = 5,
KOVAN = 42,
XDAI = 100,
ENERGY_WEB_CHAIN = 246,
VOLTA = 73799,
UNKNOWN = 0,
LOCAL = 4447,
}
```
- This is the structure to define the native coin:
```typescript
type Token = {
address: string
name: string
symbol: string
decimals: number
logoUri?: string
}
```
#### SafeFeatures
It's an array that contains a list of features that should be disabled for the network. It's empty by default.
It's an array that contains a list of wallets that will be disabled for the network. It's empty by default.
```typescript
export type Wallets = WALLETS[]
```
```typescript
export enum WALLETS {
METAMASK = 'metamask',
WALLET_CONNECT = 'walletConnect',
TREZOR = 'trezor',
LEDGER = 'ledger',
TRUST = 'trust',
DAPPER = 'dapper',
FORTMATIC = 'fortmatic',
PORTIS = 'portis',
AUTHEREUM = 'authereum',
TORUS = 'torus',
UNILOGIN = 'unilogin',
COINBASE = 'coinbase',
WALLET_LINK = 'walletLink',
OPERA = 'opera',
OPERA_TOUCH = 'operaTouch'
}
```
#### SafeEnviroments
If the network has different enviroments, you can add them here, otherwise you should only add production settings
```typescript
type SafeEnvironments = {
dev?: EnvironmentSettings
staging?: EnvironmentSettings
production: EnvironmentSettings
}
```
We use a transaction service (**txServiceUrl**) to fetch transactions and balances of each safe and also to POST messages with the created transactions, this should be provided by Gnosis.
The **networkExplorer** parameters are used to provide information related to the networkExplorer used for the given network (Blockscout for xDai, Etherscan for mainnet, etc). This is used for link transaction hashes and addresses to the given network explorer.
```typescript
export type EnvironmentSettings = GasPrice & {
txServiceUrl: string
relayApiUrl?: string
safeAppsUrl: string
rpcServiceUrl: string
networkExplorerName: string
networkExplorerUrl: string
networkExplorerApiUrl: string
}
```
The **gasPrice** is used to indicate a fixed amount for some networks (like xDai), otherwise you can provide an oracle we can use to fetch the current gas price.
```typescript
type GasPrice = {
gasPrice: number
gasPriceOracle?: GasPriceOracle
} | {
gasPrice?: number
// for infura there's a REST API Token required stored in: `REACT_APP_INFURA_TOKEN`
gasPriceOracle: GasPriceOracle
}
```
```typescript
export type GasPriceOracle = {
url: string
// Different gas api providers can use a different name to reflect different gas levels based on tx speed
// For example in ethGasStation for ETHEREUM_MAINNET = safeLow | average | fast
gasParameter: string
}
```
### Enviroment variables:
- **REACT_APP_NETWORK**: name of the used network (ex: xDai, mainnet, rinkeby)
- **REACT_APP_GOOGLE_ANALYTICS**: Used for enabling google analytics
- **REACT_APP_PORTIS_ID**: Portis ID for enabling it on given network
- **REACT_APP_FORTMATIC_KEY**: Formatic yey for given network
- **REACT_APP_BLOCKNATIVE_KEY**: Blocknative key for given network
---
## How to add a network
1) In case that it is not already supported, add the network on the **ETHEREUM_NETWORK** enum in [`src/config/networks/network.d.ts`](/src/config/networks/network.d.ts)
```typescript
export enum ETHEREUM_NETWORK {
MAINNET = 1,
MORDEN = 2,
ROPSTEN = 3,
RINKEBY = 4,
GOERLI = 5,
KOVAN = 42,
XDAI = 100,
ENERGY_WEB_CHAIN = 246,
VOLTA = 73799,
UNKNOWN = 0,
LOCAL = 4447,
}
```
2) Add **env variables**:
* REACT_APP_NETWORK
* REACT_APP_GOOGLE_ANALYTICS
* REACT_APP_PORTIS_ID
* REACT_APP_FORTMATIC_KEY
* REACT_APP_BLOCKNATIVE_KEY
3) Add the **NetworkSettings** in [`src/config/networks`](/src/config/networks) as `<network_name>.ts`:
```typescript
import { EnvironmentSettings, ETHEREUM_NETWORK, NetworkConfig } from 'src/config/networks/network.d'
