paginator_utils/
response.rs

1use serde::{Deserialize, Serialize};
2
3#[derive(Serialize, Deserialize, Debug)]
4pub struct PaginatorResponse<T> {
5    pub data: Vec<T>,
6    pub meta: PaginatorResponseMeta,
7}
8
9#[derive(Serialize, Deserialize, Debug)]
10pub struct PaginatorResponseMeta {
11    pub page: u32,
12    pub per_page: u32,
13    #[serde(skip_serializing_if = "Option::is_none")]
14    pub total: Option<u32>,
15    #[serde(skip_serializing_if = "Option::is_none")]
16    pub total_pages: Option<u32>,
17    pub has_next: bool,
18    pub has_prev: bool,
19    #[serde(skip_serializing_if = "Option::is_none")]
20    pub next_cursor: Option<String>,
21    #[serde(skip_serializing_if = "Option::is_none")]
22    pub prev_cursor: Option<String>,
23}
24
25impl PaginatorResponseMeta {
26    pub fn new(page: u32, per_page: u32, total: u32) -> Self {
27        let total_pages = (total as f32 / per_page as f32).ceil() as u32;
28        Self {
29            page,
30            per_page,
31            total: Some(total),
32            total_pages: Some(total_pages),
33            has_next: page < total_pages,
34            has_prev: page > 1,
35            next_cursor: None,
36            prev_cursor: None,
37        }
38    }
39
40    pub fn new_without_total(page: u32, per_page: u32, has_next: bool) -> Self {
41        Self {
42            page,
43            per_page,
44            total: None,
45            total_pages: None,
46            has_next,
47            has_prev: page > 1,
48            next_cursor: None,
49            prev_cursor: None,
50        }
51    }
52
53    pub fn new_with_cursors(
54        page: u32,
55        per_page: u32,
56        total: Option<u32>,
57        has_next: bool,
58        next_cursor: Option<String>,
59        prev_cursor: Option<String>,
60    ) -> Self {
61        let total_pages = total.map(|t| (t as f32 / per_page as f32).ceil() as u32);
62        Self {
63            page,
64            per_page,
65            total,
66            total_pages,
67            has_next,
68            has_prev: page > 1 || prev_cursor.is_some(),
69            next_cursor,
70            prev_cursor,
71        }
72    }
73}
paginator_utils/response.rs

paginator_utils/
response.rs
