async-graphql 1.15.10

A GraphQL server library implemented in Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152

use async_graphql::*;
use futures::StreamExt;

#[async_std::test]
pub async fn test_defer() {
    struct MyObj;

    #[Object]
    impl MyObj {
        async fn value(&self) -> i32 {
            20
        }

        async fn obj(&self) -> Deferred<MyObj> {
            MyObj.into()
        }
    }

    struct Query;

    #[Object]
    impl Query {
        async fn value(&self) -> Deferred<i32> {
            10.into()
        }

        async fn obj(&self) -> Deferred<MyObj> {
            MyObj.into()
        }
    }

    let schema = Schema::new(Query, EmptyMutation, EmptySubscription);
    let query = r#"{
        value @defer
    }"#;
    assert_eq!(
        schema.execute(&query).await.unwrap().data,
        serde_json::json!({
            "value": 10,
        })
    );

    let query = r#"{
        value @defer
        obj @defer {
            value
            obj @defer {
                value
            }
        }
    }"#;
    assert_eq!(
        schema.execute(&query).await.unwrap().data,
        serde_json::json!({
            "value": 10,
            "obj": {
                "value": 20,
                "obj": {
                    "value": 20
                }
            }
        })
    );

    let mut stream = schema.execute_stream(&query).await.into_stream();
    assert_eq!(
        stream.next().await.unwrap().unwrap().data,
        serde_json::json!({
            "value": null,
            "obj": null,
        })
    );

    let next_resp = stream.next().await.unwrap().unwrap();
    assert_eq!(next_resp.path, Some(vec![serde_json::json!("value")]));
    assert_eq!(next_resp.data, serde_json::json!(10));

    let next_resp = stream.next().await.unwrap().unwrap();
    assert_eq!(next_resp.path, Some(vec![serde_json::json!("obj")]));
    assert_eq!(
        next_resp.data,
        serde_json::json!({"value": 20, "obj": null})
    );

    let next_resp = stream.next().await.unwrap().unwrap();
    assert_eq!(
        next_resp.path,
        Some(vec![serde_json::json!("obj"), serde_json::json!("obj")])
    );
    assert_eq!(next_resp.data, serde_json::json!({"value": 20}));

    assert!(stream.next().await.is_none());
}

#[async_std::test]
pub async fn test_stream() {
    #[SimpleObject]
    struct MyObj {
        value: i32,
    }

    struct Query;

    #[Object]
    impl Query {
        async fn objs(&self) -> Streamed<MyObj> {
            Streamed::from(vec![
                MyObj { value: 1 },
                MyObj { value: 2 },
                MyObj { value: 3 },
                MyObj { value: 4 },
                MyObj { value: 5 },
            ])
        }
    }

    let schema = Schema::new(Query, EmptyMutation, EmptySubscription);
    let query = r#"{
        objs @stream { value }
    }"#;
    assert_eq!(
        schema.execute(&query).await.unwrap().data,
        serde_json::json!({
            "objs": [
                { "value": 1 },
                { "value": 2 },
                { "value": 3 },
                { "value": 4 },
                { "value": 5 },
            ]
        })
    );

    let mut stream = schema.execute_stream(&query).await.into_stream();
    assert_eq!(
        stream.next().await.unwrap().unwrap().data,
        serde_json::json!({
            "objs": [],
        })
    );

    for i in 0..5 {
        let next_resp = stream.next().await.unwrap().unwrap();
        assert_eq!(
            next_resp.path,
            Some(vec![serde_json::json!("objs"), i.into()])
        );
        assert_eq!(next_resp.data, serde_json::json!({ "value": i + 1 }));
    }

    assert!(stream.next().await.is_none());
}