Python Boto3 DynamoDB - 如何解析 map 值类型？

Question

I am storing values in my dynamodb database in this format {"user_id":123456789,"user_xp_stats":{"user_level":15,"user_xp":12670}} After I request a get_item for specific user's "xp_stats" I get a object like this: { "M": { "M": { "user_level": { "N": "1" }, "user_xp": { "N": "8.1" } } }} How should I parse it?

In other words, should I have it as a map or store "user_level" and "user_xp" each separately as a single value?

Answer 1

In other words, should I have it as a map or store "user_level" and "user_xp" each separately as a single value?

Its very difficult to make a call based on this one single example. If your items will usually have user_level and user_xp , I would keep it as separate attributes.

This gives your more options later on, eg you can create Global Secondary Indices later on based on these attributes. Its also easier to read and write as you noticed then a single map .