/
handleObject.ts
130 lines (114 loc) · 3.33 KB
/
handleObject.ts
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
import {
GraphQLCompositeType,
GraphQLError,
GraphQLSchema,
isAbstractType,
FieldNode,
GraphQLObjectType,
} from 'graphql';
import { ExecutionContext } from 'graphql/execution/execute';
import { collectFields } from '../../utils/collectFields';
import {
SubschemaConfig,
IGraphQLToolsResolveInfo,
MergedTypeInfo,
isSubschemaConfig,
} from '../../Interfaces';
import { setErrors, relocatedError } from '../../stitch/errors';
import { setObjectSubschema } from '../../stitch/subSchema';
import resolveFromParentTypename from '../../stitch/resolveFromParentTypename';
import { mergeFields } from '../../stitch/mergeFields';
export function handleObject(
type: GraphQLCompositeType,
object: any,
errors: ReadonlyArray<GraphQLError>,
subschema: GraphQLSchema | SubschemaConfig,
context: Record<string, any>,
info: IGraphQLToolsResolveInfo,
skipTypeMerging?: boolean,
) {
setErrors(
object,
errors.map((error) =>
relocatedError(
error,
error.nodes,
error.path != null ? error.path.slice(1) : undefined,
),
),
);
setObjectSubschema(object, subschema);
if (skipTypeMerging || !info.mergeInfo) {
return object;
}
const typeName = isAbstractType(type)
? info.schema.getTypeMap()[resolveFromParentTypename(object)].name
: type.name;
const mergedTypeInfo = info.mergeInfo.mergedTypes[typeName];
let targetSubschemas: Array<SubschemaConfig>;
if (mergedTypeInfo != null) {
targetSubschemas = mergedTypeInfo.subschemas;
}
if (!targetSubschemas) {
return object;
}
targetSubschemas = targetSubschemas.filter((s) => s !== subschema);
if (!targetSubschemas.length) {
return object;
}
const subFields = collectSubFields(info, object.__typename);
const selections = getFieldsNotInSubschema(
subFields,
subschema,
mergedTypeInfo,
object.__typename,
);
return mergeFields(
mergedTypeInfo,
typeName,
object,
selections,
[subschema as SubschemaConfig],
targetSubschemas,
context,
info,
);
}
function collectSubFields(info: IGraphQLToolsResolveInfo, typeName: string) {
let subFieldNodes: Record<string, Array<FieldNode>> = Object.create(null);
const visitedFragmentNames = Object.create(null);
info.fieldNodes.forEach((fieldNode) => {
subFieldNodes = collectFields(
({
schema: info.schema,
variableValues: info.variableValues,
fragments: info.fragments,
} as unknown) as ExecutionContext,
info.schema.getType(typeName) as GraphQLObjectType,
fieldNode.selectionSet,
subFieldNodes,
visitedFragmentNames,
);
});
return subFieldNodes;
}
function getFieldsNotInSubschema(
subFieldNodes: Record<string, Array<FieldNode>>,
subschema: GraphQLSchema | SubschemaConfig,
mergedTypeInfo: MergedTypeInfo,
typeName: string,
): Array<FieldNode> {
const typeMap = isSubschemaConfig(subschema)
? mergedTypeInfo.typeMaps.get(subschema)
: subschema.getTypeMap();
const fields = (typeMap[typeName] as GraphQLObjectType).getFields();
const fieldsNotInSchema: Array<FieldNode> = [];
Object.keys(subFieldNodes).forEach((responseName) => {
subFieldNodes[responseName].forEach((subFieldNode) => {
if (!fields[subFieldNode.name.value]) {
fieldsNotInSchema.push(subFieldNode);
}
});
});
return fieldsNotInSchema;
}