node.js - AWS Web 套接字 api 不会响应操作

Question

此代码应通过向发送请求 (CLI) 的用户发送 connectionId 和消息来响应 allowAccess 和拒绝访问事件。

const AWS = require('aws-sdk');

const ENDPOINT = '0ai42l08l3.execute-api.us-east-1.amazonaws.com/production/';

const client = new AWS.ApiGatewayManagementApi({
    endpoint: ENDPOINT
});

async function sendToRequestor(id, message) {
    try {
        await client.postToConnection({
            'ConnectionId': id,
            'Data': Buffer.from(JSON.stringify(message))
        });
    } catch(err) {
        console.log(err);
    }
}

exports.handler = async (event) => {
    const connectionId = event.requestContext.connectionId;
    const route = event.requestContext.routeKey;
    
    switch(route) {
        case '$default':
            break;
        case '$connect':
            break;
        case '$disconnect':
            break;
        case 'createRoom':
            break;
        case 'allowAccess':
            await sendToRequestor(connectionId, 'accessAllowed');
            break;
        case 'declineAccess':
            await sendToRequestor(connectionId, 'accessDeclined');
            break;
        default:
            console.log('Unknown route');
            break;
    }
    
    const response = {
        statusCode: 200,
        body: JSON.stringify(event),
    };
    return response;
};

但是当我使用 wscat 发送 { "action": "allowAccess" } 或 { "action": "declineAccess" } 时，我没有得到服务器的任何响应