How to use @0x/contracts-exchange-forwarder - 3 common examples

// Reference the Proxy as the StakingContract for setup
    const stakingDel = await new TestStakingContract(stakingProxy.address, provider, txDefaults);
    await stakingProxy.addAuthorizedAddress(txDefaults.from).awaitTransactionSuccessAsync(txDefaults);
    await stakingDel.addExchangeAddress(exchange.address).awaitTransactionSuccessAsync(txDefaults);
    await exchange.setProtocolFeeCollectorAddress(stakingProxy.address).awaitTransactionSuccessAsync(txDefaults);
    await exchange.setProtocolFeeMultiplier(new BigNumber(150000)).awaitTransactionSuccessAsync(txDefaults);

    await zrxVault.addAuthorizedAddress(txDefaults.from).awaitTransactionSuccessAsync(txDefaults);
    await zrxVault.setStakingProxy(stakingProxy.address).awaitTransactionSuccessAsync(txDefaults);
    await stakingLogic.addAuthorizedAddress(txDefaults.from).awaitTransactionSuccessAsync(txDefaults);
    await stakingLogic.addExchangeAddress(exchange.address).awaitTransactionSuccessAsync(txDefaults);

    // Forwarder
    // Deployed after Exchange and Staking is configured as it queries
    // in the constructor
    const forwarder = await ForwarderContract.deployFrom0xArtifactAsync(
        artifacts.Forwarder,
        provider,
        txDefaults,
        artifacts,
        exchange.address,
        etherToken.address,
    );

    const contractAddresses = {
        erc20Proxy: erc20Proxy.address,
        erc721Proxy: erc721Proxy.address,
        erc1155Proxy: erc1155Proxy.address,
        zrxToken: zrxToken.address,
        etherToken: etherToken.address,
        exchange: exchange.address,
        assetProxyOwner: constants.NULL_ADDRESS,

provider,
        txDefaults,
        devUtilsArtifacts,
        exchange.address,
    );

    await CoordinatorContract.deployFrom0xArtifactAsync(
        coordinatorArtifacts.Coordinator,
        provider,
        txDefaults,
        coordinatorArtifacts,
        exchange.address,
        chainId,
    );

    const forwarder = await ForwarderContract.deployFrom0xArtifactAsync(
        forwarderArtifacts.Forwarder,
        provider,
        txDefaults,
        forwarderArtifacts,
        exchange.address,
        deployedAddresses.etherToken,
    );
    await forwarder.approveMakerAssetProxy(deployedAddresses.etherToken).awaitTransactionSuccessAsync();
}

txDefaults,
        devUtilsArtifacts,
        exchange.address,
    );

    await CoordinatorContract.deployFrom0xArtifactAsync(
        coordinatorArtifacts.Coordinator,
        provider,
        txDefaults,
        coordinatorArtifacts,
        exchange.address,
        chainId,
    );

    const forwarder = await ForwarderContract.deployFrom0xArtifactAsync(
        forwarderArtifacts.Forwarder,
        provider,
        txDefaults,
        forwarderArtifacts,
        exchange.address,
        deployedAddresses.etherToken,
    );
    await forwarder.approveMakerAssetProxy(deployedAddresses.etherToken).awaitTransactionSuccessAsync();
}