通过code换取accesstoken

获取微信用户的授权, 需要使用微信支付提供的 OAuth2.0 服务.用授权小程序得到的授权码调用OAuth2.0接口access_token.

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本接口服务已于 2021.11.10 (北京时间)停止开放，文档仅做留存参考。

请求参数	类型	描述
query	object	声明请求的查询参数
mch_id	string	商户号
appid	string	应用ID
openid	string	微信openID
code	string	第一步返回的auth_code
grant_type	string	固定值`authorization_code` `authorization_code` 枚举值
scope	string	应用授权作用域 `pay_identity` \| `pay_realname` 枚举值之一
sign_type	string	签名类型 `HMAC-SHA256` 枚举值
sign	string	签名

php

$instance->v2->appauth->getaccesstoken->getAsync([
  'query' => [
    'mch_id'     => '1200009811',
    'appid'      => 'wxcbda96de0b165486',
    'openid'     => 'baf04e6bbbd06f7b1a197d18ed53b7f1',
    'code'       => 'wxcbda96de0b165489',
    'grant_type' => 'authorization_code',
    'scope'      => 'pay_identity',
    'sign_type'  => 'HMAC-SHA256',
    'sign'       => 'C380BEC2BFD727A4B6845133519F3AD6',
  ],
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody()));
})
->wait();

php

$instance->chain('v2/appauth/getaccesstoken')->getAsync([
  'query' => [
    'mch_id'     => '1200009811',
    'appid'      => 'wxcbda96de0b165486',
    'openid'     => 'baf04e6bbbd06f7b1a197d18ed53b7f1',
    'code'       => 'wxcbda96de0b165489',
    'grant_type' => 'authorization_code',
    'scope'      => 'pay_identity',
    'sign_type'  => 'HMAC-SHA256',
    'sign'       => 'C380BEC2BFD727A4B6845133519F3AD6',
  ],
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody()));
})
->wait();

php

$instance['v2/appauth/getaccesstoken']->getAsync([
  'query' => [
    'mch_id'     => '1200009811',
    'appid'      => 'wxcbda96de0b165486',
    'openid'     => 'baf04e6bbbd06f7b1a197d18ed53b7f1',
    'code'       => 'wxcbda96de0b165489',
    'grant_type' => 'authorization_code',
    'scope'      => 'pay_identity',
    'sign_type'  => 'HMAC-SHA256',
    'sign'       => 'C380BEC2BFD727A4B6845133519F3AD6',
  ],
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody()));
})
->wait();

php

$response = $instance->v2->appauth->getaccesstoken->get([
  'query' => [
    'mch_id'     => '1200009811',
    'appid'      => 'wxcbda96de0b165486',
    'openid'     => 'baf04e6bbbd06f7b1a197d18ed53b7f1',
    'code'       => 'wxcbda96de0b165489',
    'grant_type' => 'authorization_code',
    'scope'      => 'pay_identity',
    'sign_type'  => 'HMAC-SHA256',
    'sign'       => 'C380BEC2BFD727A4B6845133519F3AD6',
  ],
]);
print_r(json_decode((string) $response->getBody()));

php

$response = $instance->chain('v2/appauth/getaccesstoken')->get([
  'query' => [
    'mch_id'     => '1200009811',
    'appid'      => 'wxcbda96de0b165486',
    'openid'     => 'baf04e6bbbd06f7b1a197d18ed53b7f1',
    'code'       => 'wxcbda96de0b165489',
    'grant_type' => 'authorization_code',
    'scope'      => 'pay_identity',
    'sign_type'  => 'HMAC-SHA256',
    'sign'       => 'C380BEC2BFD727A4B6845133519F3AD6',
  ],
]);
print_r(json_decode((string) $response->getBody()));

php

$response = $instance['v2/appauth/getaccesstoken']->get([
  'query' => [
    'mch_id'     => '1200009811',
    'appid'      => 'wxcbda96de0b165486',
    'openid'     => 'baf04e6bbbd06f7b1a197d18ed53b7f1',
    'code'       => 'wxcbda96de0b165489',
    'grant_type' => 'authorization_code',
    'scope'      => 'pay_identity',
    'sign_type'  => 'HMAC-SHA256',
    'sign'       => 'C380BEC2BFD727A4B6845133519F3AD6',
  ],
]);
print_r(json_decode((string) $response->getBody()));

返回字典	类型	描述
retcode	number	返回状态码 `0` \| `-1` 枚举值之一
retmsg	string	处理成功，返回ok
access_token	string	接口调用凭证
access_token_expire_in	integer	请求返回的access_token过期时间，以秒为单位，有效期较短
refresh_token	string	refresh令牌
refresh_token_expire_in	number	refresh_token过期时间，以秒为单位，有效期较长

参阅官方文档

通过code换取accesstoken ​

通过code换取accesstoken