@wisegpt/awscdk-slack-event-bus/lib/lambdas/slack-handler.lambda.js

Exposes a Slack Events API Request URL that validates and sends all received events to an AWS Event Bus

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.handler = exports.SlackHandlerLambda = void 0;
const base_lambda_1 = require("./base-lambda");
const slack_event_bus_service_1 = require("../internal/event-bus/slack-event-bus.service");
const slack_event_handler_service_1 = require("../internal/handlers/slack-event-handler.service");
const slack_service_1 = require("../internal/slack/slack.service");
const path_constants_1 = require("../path-constants");
const DEFAULT_HEADERS = {
    "content-type": "application/json",
};
const globalSlackEventBusService = new slack_event_bus_service_1.SlackEventBusService();
const globalSlackService = new slack_service_1.SlackService();
class SlackHandlerLambda extends base_lambda_1.BaseLambda {
    constructor(slackEventHandlerService = new slack_event_handler_service_1.SlackEventHandlerService(globalSlackEventBusService, globalSlackService)) {
        super();
        this.slackEventHandlerService = slackEventHandlerService;
    }
    async handle(event) {
        const appId = event.pathParameters?.appId ?? process.env.SLACK_APP_ID;
        if (appId === undefined) {
            throw new Error("{appId} is undefined, make sure the url includes {appId} path parameter");
        }
        const result = await this.handleByPath({ appId }, event);
        return {
            ...result,
            headers: {
                ...DEFAULT_HEADERS,
                ...result.headers,
            },
        };
    }
    async handleByPath(handlerContext, event) {
        const path = event.requestContext.http.path;
        if (path.endsWith(path_constants_1.SLACK_PATH_EVENTS_API)) {
            return this.slackEventHandlerService.handle(handlerContext, event);
        }
        throw new Error(`unknown path: '${path}'`);
    }
}
exports.SlackHandlerLambda = SlackHandlerLambda;
exports.handler = base_lambda_1.createLambdaHandler(new SlackHandlerLambda());
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