Update part of a JSON
For example, in a game, I want to store a player's progress information.
This user data is stored first:
{
"Worlds": [
{
"Id": 1,
"Levels": [
{
"Id": 1,
"Progress": 0
},
{
"Id": 2,
"Progress": 0
}
]
},
{
"Id": 2,
"Levels": [
{
"Id": 1,
"Progress": 0
},
{
"Id": 2,
"Progress": 0
}
]
}
]
}
When he progresses, I would like to send this information to update only the progress of World 1 - Level 1
{
"Worlds": [
{
"Id": 1,
"Levels": [
{
"Id": 1,
"Progress": 500
}
]
}
]
}
Is it possible to achieve this result without having to get all the data from the server?
{
"Worlds": [
{
"Id": 1,
"Levels": [
{
"Id": 1,
"Progress": 500 <-- value updated
},
{
"Id": 2,
"Progress": 0
}
]
},
{
"Id": 2,
"Levels": [
{
"Id": 1,
"Progress": 0
},
{
"Id": 2,
"Progress": 0
}
]
}
]
}
Best Answer
To clarify, the smallest unit to update User Data is one K/V pair. The value of one K/V pair can’t be updated in parts but can only be updated by overwriting. But as a workaround, you can get all the data first, and store it locally. Every time player progresses, you can just modify part of it then call update API with it.
