https://api.weixin.qq.com/sns/jscode2session?appid=&secret=&js_code=0c3iRw100BNdnQ1PVc0002P6zZ3iRw1A&grant_type=authorization_code {"errcode":41002,"errmsg":"appid missing, rid: 64be7aff-12ab69cd-376a7092"}

根据提供的引用内容，你提供的链接中缺少了appid和secret参数，导致返回了错误码41002和错误信息"appid missing"。你需要在链接中填入正确的appid和secret参数才能成功获取openid。
#### 引用[.reference_title]
- *1* [微信小程序与微信登陆的交互、微信登录、获取微信信息](https://blog.csdn.net/m0_58859743/article/details/125881938)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insert_down28v1,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [file_get_contents 无法请求微信小程序https://api.weixin.qq.com接口的问题](https://blog.csdn.net/wydd7522/article/details/82924946)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insert_down28v1,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [微信小程序调用后端接口获取openid，api.weixin.qq.com不能设置安全域名](https://blog.csdn.net/qq_39650208/article/details/106306474)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insert_down28v1,239^v3^insert_chatgpt"}} ] [.reference_item]
[ .reference_list ]