使用firebase函数处理gocardless

Question

我正在使用GoCardless (沙盒帐户) webhook为一个帐单项目。我已经在this guide上使用Nodejs本地(与ngrok)来处理webhooks的步骤，并且它工作，我的意图是使用firebase函数作为服务器，但是当我在firebase上部署代码并测试它抛出‘超时错误’的代码时，我不知道我是否遗漏了关于firebase函数的某些东西……这是firebase上的代码：

    const functions = require('firebase-functions');
    const webhooks = require("gocardless-nodejs/webhooks");
    const webhookEndpointSecret = "xxxxxx";
    exports.events = functions.https.onRequest((request, response) => {
    if (request.method !== "POST") {
        response.writeHead(405);
        response.end();
        return;
    }
    let data = "";
    request.on("data", chunk => {
        data += chunk;
    });
    request.on("end", () => {
        try {
            const signatureHeader = request.headers["webhook-signature"];
            const events = webhooks.parse(
                data,
                webhookEndpointSecret,
                signatureHeader
            );
            events.forEach(event => {
                if (event.resource_type !== "mandates") {
                    //continue;
                }
                switch (event.action) {
                    case "created":
                        console.log(
                            `Mandate ${event.links.mandate} has been created, yay!`
                        );
                        break;
                    case "cancelled":
                        console.log(`Oh no, mandate ${event.links.mandate} was cancelled!`);
                        break;
                    default:
                        console.log(`${event.links.mandate} has been ${event.action}`);
                }
            });
            response.writeHead(204);
            response.end();
        } catch (e) {
            response.writeHead(403);
            response.end();
        }
    });
});

谢谢!

Answer 1

好了，我终于知道怎么回事了.问题是'data‘变量是空的。我解决了获取请求主体的问题，如下所示：

let data = request.rawBody.toString();

我希望这能对其他人有用。