MS Teams自定义Bot出现Bad Gateway(502)及Error Code 911认证失败问题

在开发的MS Teams自定义应用中，使用Bot SDK的Adaptive Cards、搜索、Message Extensions等功能时，触发**Bad Gateway(502)**错误，同时返回Error Code 911，错误信息提示认证失败。

错误响应详情 #

// 20250212172704
// https://teams.microsoft.com/api/chatsvc/in/v1/agents/28:0bc21a2c-b9c1-4bd5-9989-0c5aaf324d64/invoke

{
  "errorCode": 911,
  "message": "Authentication failed.",
  "standardizedError": {
    "errorCode": 911,
    "errorSubCode": 1,
    "errorDescription": "Authentication failed."
  }
}

已排查情况 #

• 核对所有配置字段，确认Bot拥有足够权限
• 后端代码逻辑无明显问题
• 已实现任务模块，但错误仍未解决

Bot后端代码 #

import { TeamsActivityHandler, CardFactory } from 'botbuilder';
import axios from 'axios';
import dotenv from 'dotenv';

dotenv.config();


export class TeamsMessagingExtensionsActionBot extends TeamsActivityHandler {
    constructor() {
        super();
        

        this.onInvokeActivity = async (context) => {
            const commandId = context.activity.value.commandId;
            console.log(`📌 Command ID received: ${commandId}`);
        
            let response;
            switch (commandId) {
                case "Create-Issue":
                case "create_Issue":
                    response = {
                        type: 'invokeResponse',
                        value: {
                            status: 200,
                            body: {
                                task: {
                                    type: 'continue',
                                    value: {
                                        url: "https://localhost:53000/#/dev-tab",
                                        title: "Create Jira Issue",
                                        height: "medium",
                                        width: "medium",
                                    }
                                }
                            }
                        }
                    };
                    break;
                case "Update-Issue":
                case "update_Issue":
                    response = {
                        type: 'invokeResponse',
                        value: {
                            status: 200,
                            body: {
                                task: {
                                    type: 'continue',
                                    value: {
                                        url: "https://localhost:53000/#/update-issue",
                                        title: "Update Jira Issue",
                                        height: "medium",
                                        width: "medium",
                                    }
                                }
                            }
                        }
                    };
                    break;
                case "Get-Issues":
                case "get_Issues":
                    response = {
                        type: 'invokeResponse',
                        value: {
                            status: 200,
                            body: {
                                task: {
                                    type: 'continue',
                                    value: {
                                        url: "https://localhost:53000/#/get-issue",
                                        title: "Get a Jira Issue",
                                        height: "medium",
                                        width: "medium",
                                    }
                                }
                            }
                        }
                    };
                    break;
                default:
                    response = {
                        type: 'invokeResponse',
                        value: {
                            status: 400,
                            body: {
                                task: {
                                    type: 'continue',
                                    value: {
                                        card: CardFactory.adaptiveCard({
                                            type: 'AdaptiveCard',
                                            body: [{ type: 'TextBlock', text: "Unknown action", weight: 'Bolder', size: 'Medium' }],
                                            $schema: 'http://adaptivecards.io/schemas/adaptive-card.json',
                                            version: '1.2'
                                        }),
                                        title: "Error",
                                        height: "medium"
                                    }
                                }
                            }
                        }
                    };
            }
        
            await context.sendActivity(response);
        };
        

        this.onMessage = async (context, next) => {
            const action = context.activity.value?.action;

            if (action === "create_issue") {
                const { issueTitle, issueDescription, priority } = context.activity.value;
                const response = await createJiraIssue(issueTitle, issueDescription, priority);
                await context.sendActivity(response);
            } 
            else if (action === "update_issue") {
                const { issueId, newDescription, status } = context.activity.value;
                const response = await updateJiraIssue(issueId, newDescription, status);
                await context.sendActivity(response);
            } 
            else if (action === "get_issues") {
                const { projectId } = context.activity.value;
                const response = await fetchJiraIssues(projectId);
                await context.sendActivity(response);
            }

            await next();
        };


        

    }


}

请求协助排查该认证失败错误的具体原因及修复方案。

内容的提问来源于stack exchange，提问作者Saransh Bhole