I'm fairly new to working with TypeScript and I've encountered this issue several times. When using tools like Prisma to retrieve data, I often come across values with incredibly complex types.
These values contain many attributes, which is perfectly fine. However, when I try to define a function to handle this type of value, I lose all the type information because I would have to redefine the complex type in the function parameter.
For example:
const users = await prisma.user.findMany({
select:{
projects: {
select: {
name: true,
slug: true,
_count:{
select: {
subscribers: true,
mediaIds: true
}
}
},
},
id: true,
email: true,
firstName: true,
lastName: true,
createdAt: true,
_count:{
select:{
mediaIds: true,
projects: true
}
}
},
});
Now let's say I want to create a function to handle an individual subscriber:
users.forEach(user=>{
// At this point, I have the correct typing for the user object
handleUser(user)
});
function handleUser(user: <what should I specify here?>){
// Here, I would need to redefine the monstrously long (but useful) dynamic type that Prisma generates for my query
}
I am unsure of what the best approach is in this situation.