Question

我使用嵌套for循环来完成任务。我发现HTTP调用和数据库查询是异步的，最终会产生不希望的输出。所以我使用了async.eachOfSeries。执行在第一次迭代本身进入内部最async.eachOfSeries后立即停止。我想我在构造代码和返回回调时犯了一些错误。我基本上需要知道你的两件事：

什么是在第一次迭代中停止执行代码？
这种方法会解决异步性问题吗？或者有更好的方法来解决它吗？

我们将不胜感激。

    async.eachOfSeries(res, function (value, camp, callback) {
        let _id = res[camp]._id;
        let arr = res[camp].campaignID;
        async.eachOfSeries(arr, function (value1, i, callback) {
            let users = arr[i].users;
            let id = arr[i].id;
            let loop = Math.ceil(users / 1000);
            let limit = 0,
                offset = 0;
            for (let j = 0; j < loop; j++) {
                if (users > 1000) {
                    limit = 1000;
                    users -= limit;
                } else {
                    limit = users;
                }
                console.log(limit + " limit " + offset + " offset");
                var start = Date.now();
                while (Date.now() < start + 100) {}
                const request = mailjet
                    .get("messagesentstatistics")
                    .request({
                        "CampaignID": id,
                        "AllMessages": true,
                        "Limit": limit,
                        "Offset": offset
                    })
                request
                    .then((result) => {
                        let data = result.body.Data;
                        var loop = 0;
                        async.eachOfSeries(data, function (value2, val, callback) {
                            console.log("ayyuuuuu");
                            let jsonObj = data[val];
                            let email = jsonObj.ToEmail;
                            jsonObj['retailer'] = res[camp].retailer;
                            jsonObj['summary'] = 'f';
                            let tempObj = {};
                            tempObj[id] = jsonObj;
                            let options = {
                                new: true
                            };
                            let campId = id;
                            User.addCampaignResponse(email, campId, tempObj, options, function (err, results) {
                                if (err) {
                                    throw err;
                                } else {
                                    Campaign.updateResponse(_id, function (err, results2) {
                                        if (err)
                                            throw err;
                                    }) // console.log(results);
                                }
                            })
                        }, function (err) {
                            callback();
                        })
                    })
                    .catch((err) => {
                        console.log(err);
                    })
                offset += limit;
            }
        }, function (err) {
            callback();
        })
    }, function (err) {
        callback(undefined, "doneeeeee");
    })

嵌套async.eachOfSeries后出现问题

0 个答案: