## 扫码登录 > 扫码登录流程 > 1、 ~~~[api] post:/v1/user/loginByIM *login_sign#登录签名 *int:timestamp#请求时的时间戳（秒） *platform#请求来源平台【pc=>被扫码端, app=>扫码端】 open_id# 如果platform=app，open_id不能为空 login_status#扫码状态【1、扫描，2、登录】.如果platform=app，login_status不能为空 <<< success 1、SUCCESS1【PC端】 { "code": 0, "msg": "ok", "data": { "qrCodeStatus": 0, "qrCodeMsg": "客户端未扫码" } } 2、SUCCESS2【APP端，PC端】 { "code": 0, "msg": "ok", "data": { "qrCodeStatus": 1, "qrCodeMsg": "客户端已扫码,等待确认" } } 3、SUCCESS3【APP端，PC端】 { "code": 0, "msg": "ok", "data": { "qrCodeStatus": 2, "qrCodeMsg": "客户端已确认登录", "login_info": { "timestamp": 1542681956, "access_token": "9893b9610c8a305a9e3173bb852b8ecedc0ee572", "access_open_id": "c28b926fd2aec773d02cad7806f5ebf7", "identity": [{ "id": 2, "name": "代表端", "org": { "bloc_id": 12827, "org_id": 35299, "org_name": "上城区", "groups": [{ "group_id": 0, "path": "上城区\n" }] } }, { "id": 1, "name": "机关端", "org": { "bloc_id": 12827, "org_id": 35299, "org_name": "上城区", "groups": [{ "group_id": 0, "path": "上城区\n" }] } }], "login_times": 15 } } } 4、SUCCESS4【APP端，PC端】 { "code": 0, "msg": "二维码失效", "data": { "qrCodeStatus": 3, "qrCodeMsg": "二维码失效，请勿重新扫码" } } <<< error 1、(-1, "参数错误：错误原因") 2、(-1, '扫码失败，请重试~') 【APP端：对应SUCCESS2】 3、(-1, '确认失败，请重试~') 【APP端：对应SUCCESS3】 ~~~