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package wechatoffice
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import (
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"context"
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"fmt"
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"net/url"
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)
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// Oauth2 用户同意授权，获取code
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// https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html#0
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func (c *Client) Oauth2(ctx context.Context, redirectUri, state string) string {
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param := url.Values{}
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param.Add("appid", c.GetAppId()) // 公众号的唯一标识
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param.Add("redirect_uri", redirectUri) // 授权后重定向的回调链接地址， 请使用 urlEncode 对链接进行处理
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param.Add("response_type", "code") // 返回类型
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param.Add("scope", "snsapi_userinfo") // 应用授权作用域
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param.Add("state", state) // 重定向后会带上state参数，开发者可以填写a-zA-Z0-9的参数值，最多128字节
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return fmt.Sprintf("https://open.weixin.qq.com/connect/oauth2/authorize?%s#wechat_redirect", param.Encode())
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}
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