电商收付通模式支付后场景预签约

电商收付通服务商下单成功并获取`prepay_id`后，需先调用该预签约接口完成预签约。预签约成功后，若用户支付成功、且操作未超时（预签约会话在2小时的有效期内）、且无其他特殊原因，将提示用户可以开通免密支付签约；预签约失败时，将不会提示用户开通免密支付。 注意 用户在微信的页面中完成免密支付签约后，微信会同时将签约信息通过异步通知的方式通知给商户后台。 如果用户放弃签约或签约失败则不通知。

请求参数	类型	描述
json	object	声明请求的JSON数据结构
appid	string	商户AppID
service_id	number	免密支付服务ID
out_contract_code	string	商户签约协议号
notify_url	string	回调通知地址
contract_display_account	string	用户账户展示名称
prepay_id	string	预支付交易会话标识
openid	string	用户标识

异步纯链式

$instance->v3->passwordExemptContract->contracts->ecommerce->preEntrustSign->payRedirectSign->postAsync([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'service_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'notify_url' => 'https://yourapp.com/notify',
    'contract_display_account' => '微信代扣用户A',
    'prepay_id' => 'wx201410272009395522657a690389285100',
    'openid' => 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o',
  ],
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody(), true));
})
->wait();

异步声明式

$instance->chain('v3/password-exempt-contract/contracts/ecommerce/pre-entrust-sign/pay-redirect-sign')->postAsync([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'service_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'notify_url' => 'https://yourapp.com/notify',
    'contract_display_account' => '微信代扣用户A',
    'prepay_id' => 'wx201410272009395522657a690389285100',
    'openid' => 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o',
  ],
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody(), true));
})
->wait();

异步属性式

$instance['v3/password-exempt-contract/contracts/ecommerce/pre-entrust-sign/pay-redirect-sign']->postAsync([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'service_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'notify_url' => 'https://yourapp.com/notify',
    'contract_display_account' => '微信代扣用户A',
    'prepay_id' => 'wx201410272009395522657a690389285100',
    'openid' => 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o',
  ],
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody(), true));
})
->wait();

同步纯链式

$response = $instance->v3->passwordExemptContract->contracts->ecommerce->preEntrustSign->payRedirectSign->post([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'service_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'notify_url' => 'https://yourapp.com/notify',
    'contract_display_account' => '微信代扣用户A',
    'prepay_id' => 'wx201410272009395522657a690389285100',
    'openid' => 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o',
  ],
]);
print_r(json_decode((string) $response->getBody(), true));

同步声明式

$response = $instance->chain('v3/password-exempt-contract/contracts/ecommerce/pre-entrust-sign/pay-redirect-sign')->post([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'service_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'notify_url' => 'https://yourapp.com/notify',
    'contract_display_account' => '微信代扣用户A',
    'prepay_id' => 'wx201410272009395522657a690389285100',
    'openid' => 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o',
  ],
]);
print_r(json_decode((string) $response->getBody(), true));

同步属性式

$response = $instance['v3/password-exempt-contract/contracts/ecommerce/pre-entrust-sign/pay-redirect-sign']->post([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'service_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'notify_url' => 'https://yourapp.com/notify',
    'contract_display_account' => '微信代扣用户A',
    'prepay_id' => 'wx201410272009395522657a690389285100',
    'openid' => 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o',
  ],
]);
print_r(json_decode((string) $response->getBody(), true));

返回字典	类型	描述
mchid	string	商户号
service_id	number	免密支付服务ID
out_contract_code	string	商户签约协议号

参阅 官方文档