How do you use the counter in Redis?

In Redis, counters are typically implemented using one of the following two methods:

1. With the INCR command, you can increment the value of a specified key. If the key does not exist, it will be initialized to 0 before incrementing. For example, you can use the following command to implement an increment operation for a counter:

INCR counter_key

1. Utilize the INCRBY command: The INCRBY command can be used to perform specific incremental operations on a specified key, allowing for custom increments. For example, you can use the following command to implement custom increment operations for a counter:

INCRBY counter_key increment_value

Both methods mentioned above can easily achieve the functionality of a counter, and due to the high performance of Redis and its atomic operations, the counter operation can also ensure concurrency safety.