Acquire Endpoint

When confirming the Endpoint configured when you use the SDK, you can first read the section on VPC Sservice Domain Name in the Developer Guide to understand the Endpoint concept. Baidu AI Cloud currently opens the multi-region (Region) support. Please refer to the part of network product VPC in Region Selection Introduction. The NAT services are a part of VPC services, and use the VPC service domain name.

Get the Key

To use Baidu Cloud products, you need to have a Baidu Cloud account and a valid AK (Access Key ID) and SK (Secret Access Key) for signature verification. You can obtain and understand your AK/SK information through the following steps:

1.[Register Baidu Cloud Account](https://login.bce.baidu.com/reg.html? tpl=bceplat&from=portal)

2.[Create AK/SK](https://console.bce.baidu.com/iam/? _=1513940574695#/iam/accesslist)

NatClient

Natclient is the PHP client of NAT services, encapsulates the API of NAT services, and simplifies the interaction between developers and NAT services. The users can call the methods in NatClient to configure the NAT gateway. The method return parameter in NatClient is consistent with [API Method](https://console.bce.baidu.com/iam/? _=1513940574695#/iam/accesslist).

Create NatClient

When creating NatClient, you need to first use Endpoint, AK and SK to configure the g_NatConfigs, and then use the g_NatConfigs to configure the NatClient. The specific configuration method is as follows:

$g_NatConfigs = array(
    'credentials' => array(
        'ak' => '',
        'sk' => '',
    ),
    'endpoint' => '',
);
public $client;
client = new NatClient($g_NatConfigs);

Create an NAT Gateway

The createNat function can be used to create the gateway in the specified VPC, and is defined as below:

public function createNat($name, $vpcId, $spec, $eips = null, $billing = null, $clientToken = null,  $options = array())

The parameters are described as follows:

For the customized Billing type definition, refer to Billing.php.

Query the NAT Gateway List

The listNats function can be used to query the NAT gateway list. If the query condition is queried, the NAT gateways are screened according to the query condition. If no query condition is provided, all NAT gateways are queried by default. The function is defined as below:

public function listNats($vpcId, $natId = null, $name = null, $ip = null, $marker = null, $maxKeys = 1000,$options = array())

The parameters are described as follows:

Query the NAT Gateway Details

The detailNats function can be used to query the NAT details, and is defined as below:

public function detailNats($natId, $options = array())

The parameters are described as follows:

Update the NAT Gateway Name

The renameNat function can be used to update the NAT gateway name, and is defined as below:

public function renameNat($natId, $name, $clientToken = null, $options = array())

The parameters are described as follows:

Bind EIP

The bindNat function can be used to bind EIP to the NAT gateway, and is defined as below:

public function bindNat($eips, $natId, $clientToken = null, $options = array())

The parameters are described as follows:

Unbind EIP

The unbindNat function can be used to unbind EIP from the NAT gateway, and is defined as below:

public function unbindNat($eips, $natId, $clientToken = null, $options = array())

The parameters are described as follows:

Release the NAT Gateway

The releaseNat function can be used to release the NAT gateway, and is defined as below:

public function releaseNat($natId, $clientToken = null, $options = array())

The parameters are described as follows:

NAT Gateway Renewal

The purchaseReservedNat function can be used to renew the NAT gateway , and only the prepaid type supports the renewal operation. The function is defined as below:

public function purchaseReservedNat($natId, $billing = null, $clientToken = null, $options = array())

The parameters are described as follows: