从 NodeJS 将数组插入到 redis

Question

我有一个数组，我填写了一个这样的：

var obj = [];
for(i = 0; i < data.bids.length; i += 1) {
    obj.push(JSON.parse(data.bids[i][0]));
}

之后我验证数组是否包含所需的值（它包含）：

console.log("Array after the for: \n");
console.log(obj);

我试图挽救这下Redis的关键，但reply为undefined

client.set('order-book:buy:bitstamp', obj, function(err, reply) {
    console.log(reply);
});

我也试过rpush，但没有运气。
可能是什么问题呢？

Answer 1

You can check here which types are compatible as redis values data-types-intro.

If you need to save array of objects in redis, the only way to do this is by using JSON.stringify(obj). So in your example it would look something like:

const redisValue = JSON.stringify(obj);
client.set('order-book:buy:bitstamp', redisValue, function(err, reply) {
    console.log(reply);
});

When reading data from redis you can easily use JSON.parse(redisResponse).