Hasura: How to group same variables in columns and count them? - graphql

Question

I am trying to create a query where data from table analytics value per column will be grouped and counted, I have zero knowledge in grouping a value of columns and counting them and doing this on my end is really hard.
So I have an example query here:
So I have an example query here:
query getAnalytics($from: timestamptz, $to: timestamptz, $user_id: String) {
data:analytics(where: { created_at: {_gte: $from, _lte: $to}, user_id: {_eq: $user_id}}) { id user_id visitor_id type os device country browser created_at }
}
it get a sample data:
{
"data": {
"data": [
{
"id": 9,
"user_id": "user_2Jy9jmL8OIpyb1DpTGYrrtjS77P",
"visitor_id": "null",
"type": "visit",
"os": "Windows 10",
"device": "Desktop",
"country": "Japan",
"browser": "Chrome",
"created_at": "2023-01-07T04:36:38.086468+00:00"
},
{
"id": 10,
"user_id": "user_2Jy9jmL8OIpyb1DpTGYrrtjS77P",
"visitor_id": "null",
"type": "visit",
"os": "Windows 10",
"device": "Desktop",
"country": "Japan",
"browser": "Chrome",
"created_at": "2023-01-07T04:36:38.489139+00:00"
},
{
"id": 11,
"user_id": "user_2Jy9jmL8OIpyb1DpTGYrrtjS77P",
"visitor_id": "null",
"type": "visit",
"os": "Windows 10",
"device": "Desktop",
"country": "Japan",
"browser": "Chrome",
"created_at": "2023-01-07T04:43:53.903306+00:00"
},
{
"id": 12,
"user_id": "user_2Jy9jmL8OIpyb1DpTGYrrtjS77P",
"visitor_id": "null",
"type": "visit",
"os": "Windows 10",
"device": "Desktop",
"country": "Japan",
"browser": "Chrome",
"created_at": "2023-01-07T04:43:54.325736+00:00"
},
{
"id": 13,
"user_id": "user_2Jy9jmL8OIpyb1DpTGYrrtjS77P",
"visitor_id": "null",
"type": "visit",
"os": "Windows 10",
"device": "Desktop",
"country": "Japan",
"browser": "Chrome",
"created_at": "2023-01-07T04:45:17.899966+00:00"
},
]
}
}
Sorry, I wasn't able to provide a tested code because most of my structure didn't work and the only thing that I know in counting things up is aggregate with condition and count or join, But things grouping dynamically with columns value and counting them up, I have zero idea.
Is it possible to group the value of columns and count them, you know for analytics purposes.
sample output structure that I want to happen:
{
"user_id": "user_2Jy9jmL8OIpyb1DpTGYrrtjS77P",
"visitor_id": {
"null": 41,
"user_2JzAMaOW8j01rpsl98McXwBlCkv": 30
}
"type": {
"visit": 71,
"shares": 0,
"clicks": 0,
},
"os": {
"Windows 10": 28,
"iOS 13.2.3": 36,
"null": 7,
},
"device": {
"Desktop": 60,
"Mobile": 10,
"null": 7,
},
"country": {
"Japan": 60,
"null": 7,
},
"browser": {
"Chrome": 28,
"Mobile Safari": 36,
"null": 7,
}
}
I am clueless and cant find in docs or other article the thing/related to things I want to happen

Answer 1

GraphQL is a query language for APIs (https://graphql.org/).
GraphQL it is not SQL and have not a group method. For each query we have output object format. In your case it is (approximately)
type Analytic {
id: ID!
user_id: String
visitor_id: String
type: String
os: String
device: String
country: String
browser: String
created_at: DateTime
}
Result of your query it is List of Analytic. Combining schema-defined types must already be done on the client. Or ask to add an object with analytics to the scheme in the format you need.