今天突然小程序登录不了，后台报错“The given payload is invalid.”但是小程序这边流程是正确的，绝对没错的，找了半天想起来看看wx.login的报错，结果显示：“fail api scope is not declared in the privacy agreement”，于是就去更新了用户协议，但是更新了还不对，才发现微信

于是就去查看这到底是什么东西
在components新增组件PrivacyPop

<template>
    <view class="privacy" v-if="showPrivacy">
        <view class="content">
            <view class="title">隐私保护指引</view>
            <view class="des">
                在使用当前小程序服务之前，请仔细阅读<text class="link" @tap="openPrivacyContract">{{ privacyContractName }}</text>。如你同意{{
                    privacyContractName }}，请点击“同意”开始使用。
            </view>
            <view class="btns">
                <button class="item reject" @tap="exitMiniProgram">拒绝</button>
                <button id="agree-btn" class="item agree" open-type="agreePrivacyAuthorization"
                    @agreeprivacyauthorization="handleAgreePrivacyAuthorization">同意</button>
            </view>
        </view>
    </view>
</template>
  
<script>
export default {
    data() {
        return {
            privacyContractName: '《XXX隐私保护引导》',
            showPrivacy: false
        }
    },
    methods: {
		checkPrivacySetting(){
			uni.getPrivacySetting({
			      success: res => {
					console.log("getPrivacySetting",res)
					this.showPrivacy = true
			        // 返回结果为: res = { needAuthorization: true/false, privacyContractName: '《xxx隐私保护指引》' }
			        // if (res.needAuthorization) {
			          // 需要弹出隐私协议
			            // this.showPrivacy = false
			        // } else {
						// this.showPrivacy = true
			          // 用户已经同意过隐私协议，所以不需要再弹出隐私协议，也能调用已声明过的隐私接口
			          // wx.getUserProfile()
			          // wx.chooseMedia()
			          // wx.getClipboardData()
			          // wx.startRecord()
			        // }
			      },
			      fail: () => {},
			      complete: () => {}
			})
		},
		// 打开隐私协议
        openPrivacyContract() {
            uni.openPrivacyContract({
                fail: () => {
                    uni.showToast({
                        title: '遇到错误',
                        icon: 'error'
                    })
                }
            })
        },
        // 拒绝隐私协议
        exitMiniProgram() {
			console.log("拒绝隐私协议")
			const that = this;
            // 直接退出小程序
            // wx.exitMiniProgram()
			uni.showModal({
				// 如果拒绝,我们将无法获取您的信息, 包括手机号、位置信息、相册等该小程序十分重要的功能,您确定要拒绝吗?
				content: '您确定要拒绝吗?',
				success: res => {
					if (res.confirm) {
						that.showPrivacy = false;
						uni.exitMiniProgram({
							success: () => {
								console.log('退出小程序成功');
							}
						});
					}
				}
			});
        },
        // 同意隐私协议
        handleAgreePrivacyAuthorization() {
           
			wx.requirePrivacyAuthorize({
			      success: () => {
			        // 用户同意授权
			        // 继续小程序逻辑
					 this.showPrivacy = false
			      },
			      fail: () => {}, // 用户拒绝授权
			      complete: () => {}
			    })
        }
    }
}
</script> 
  
<style scoped> .privacy {
     position: fixed;
     top: 0;
     right: 0;
     bottom: 0;
     left: 0;
     background: rgba(0, 0, 0, .5);
     z-index: 9999999;
     display: flex;
     align-items: center;
     justify-content: center;
 }
 
 .content {
     width: 632rpx;
     padding: 48rpx;
     box-sizing: border-box;
     background: #fff;
     border-radius: 16rpx;
 }
 
 .content .title {
     text-align: center;
     color: #333;
     font-weight: bold;
     font-size: 32rpx;
 }
 
 .content .des {
     font-size: 26rpx;
     color: #666;
     margin-top: 40rpx;
     text-align: justify;
     line-height: 1.6;
 }
 
 .content .des .link {
     color: #07c160;
     text-decoration: underline;
 }
 
 .btns {
     margin-top: 48rpx;
     display: flex;
 }
 
 .btns .item {
     justify-content: space-between;
     width: 244rpx;
     height: 80rpx;
     display: flex;
     align-items: center;
     justify-content: center;
     border-radius: 16rpx;
     box-sizing: border-box;
     border: none;
 }
 
 .btns .reject {
     background: #f4f4f5;
     color: #909399;
 }
 
 .btns .agree {
     background: #07c160;
     color: #fff;
 }
</style>

在login页引入：

import PrivacyPop from '../../components/PrivacyPop/PrivacyPop.vue';

components:{
	PrivacyPop
},
async onLoad() {
	this.wxLoginCode = await this.wxLogin();
	this.$refs.PrivacyPopck.checkPrivacySetting();
},

这样就可以了
后面发现：checkPrivacySetting返回false的时候点击登录还是报错未授权，所以每次登录都得授权才能继续请求接口