APP方式预签约

电商服务商从外部App拉起微信客户端发起签约前，需先后台调用预签约接口完成预签约，获取pre_entrustweb_id，再拉起微信客户端；用户完成签约授权后，再返回App。

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
plan_id	integer	委托代扣协议模板Id
out_contract_code	string	商户签约协议号
contract_display_account	string	用户账户展示名称
notify_url	string	回调通知地址
return_app	boolean	返回app标识

异步纯链式

$instance->v3->ecommerce->combinePapay->contracts->preEntrustSign->postAsync([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'plan_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'contract_display_account' => '微信代扣用户A',
    'notify_url' => 'https://yourapp.com/notify',
    'return_app' => true,
  ],
])
->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/ecommerce/combine-papay/contracts/pre-entrust-sign')->postAsync([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'plan_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'contract_display_account' => '微信代扣用户A',
    'notify_url' => 'https://yourapp.com/notify',
    'return_app' => true,
  ],
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody(), true));
})
->wait();

异步属性式

$instance['v3/ecommerce/combine-papay/contracts/pre-entrust-sign']->postAsync([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'plan_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'contract_display_account' => '微信代扣用户A',
    'notify_url' => 'https://yourapp.com/notify',
    'return_app' => true,
  ],
])
->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->ecommerce->combinePapay->contracts->preEntrustSign->post([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'plan_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'contract_display_account' => '微信代扣用户A',
    'notify_url' => 'https://yourapp.com/notify',
    'return_app' => true,
  ],
]);
print_r(json_decode((string) $response->getBody(), true));

同步声明式

$response = $instance->chain('v3/ecommerce/combine-papay/contracts/pre-entrust-sign')->post([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'plan_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'contract_display_account' => '微信代扣用户A',
    'notify_url' => 'https://yourapp.com/notify',
    'return_app' => true,
  ],
]);
print_r(json_decode((string) $response->getBody(), true));

同步属性式

$response = $instance['v3/ecommerce/combine-papay/contracts/pre-entrust-sign']->post([
  'json' => [
    'appid' => 'wxd678efh567hg6787',
    'plan_id' => 12535,
    'out_contract_code' => 'wxwtdk20200910100000',
    'contract_display_account' => '微信代扣用户A',
    'notify_url' => 'https://yourapp.com/notify',
    'return_app' => true,
  ],
]);
print_r(json_decode((string) $response->getBody(), true));

返回字典	类型	描述
pre_entrustweb_id	string	预签约Id
mchid	string	商户号
plan_id	integer	委托代扣协议模板Id
out_contract_code	string	商户签约协议号

参阅 官方文档