Initialisation

Added the packages and files for the backend server

node_modules/@graphql-tools/utils/esm/fields.js

@@ -0,0 +1,108 @@
+import { GraphQLObjectType } from 'graphql';
+import { MapperKind } from './Interfaces.js';
+import { mapSchema, correctASTNodes } from './mapSchema.js';
+import { addTypes } from './addTypes.js';
+export function appendObjectFields(schema, typeName, additionalFields) {
+    if (schema.getType(typeName) == null) {
+        return addTypes(schema, [
+            new GraphQLObjectType({
+                name: typeName,
+                fields: additionalFields,
+            }),
+        ]);
+    }
+    return mapSchema(schema, {
+        [MapperKind.OBJECT_TYPE]: type => {
+            if (type.name === typeName) {
+                const config = type.toConfig();
+                const originalFieldConfigMap = config.fields;
+                const newFieldConfigMap = {};
+                for (const fieldName in originalFieldConfigMap) {
+                    newFieldConfigMap[fieldName] = originalFieldConfigMap[fieldName];
+                }
+                for (const fieldName in additionalFields) {
+                    newFieldConfigMap[fieldName] = additionalFields[fieldName];
+                }
+                return correctASTNodes(new GraphQLObjectType({
+                    ...config,
+                    fields: newFieldConfigMap,
+                }));
+            }
+        },
+    });
+}
+export function removeObjectFields(schema, typeName, testFn) {
+    const removedFields = {};
+    const newSchema = mapSchema(schema, {
+        [MapperKind.OBJECT_TYPE]: type => {
+            if (type.name === typeName) {
+                const config = type.toConfig();
+                const originalFieldConfigMap = config.fields;
+                const newFieldConfigMap = {};
+                for (const fieldName in originalFieldConfigMap) {
+                    const originalFieldConfig = originalFieldConfigMap[fieldName];
+                    if (testFn(fieldName, originalFieldConfig)) {
+                        removedFields[fieldName] = originalFieldConfig;
+                    }
+                    else {
+                        newFieldConfigMap[fieldName] = originalFieldConfig;
+                    }
+                }
+                return correctASTNodes(new GraphQLObjectType({
+                    ...config,
+                    fields: newFieldConfigMap,
+                }));
+            }
+        },
+    });
+    return [newSchema, removedFields];
+}
+export function selectObjectFields(schema, typeName, testFn) {
+    const selectedFields = {};
+    mapSchema(schema, {
+        [MapperKind.OBJECT_TYPE]: type => {
+            if (type.name === typeName) {
+                const config = type.toConfig();
+                const originalFieldConfigMap = config.fields;
+                for (const fieldName in originalFieldConfigMap) {
+                    const originalFieldConfig = originalFieldConfigMap[fieldName];
+                    if (testFn(fieldName, originalFieldConfig)) {
+                        selectedFields[fieldName] = originalFieldConfig;
+                    }
+                }
+            }
+            return undefined;
+        },
+    });
+    return selectedFields;
+}
+export function modifyObjectFields(schema, typeName, testFn, newFields) {
+    const removedFields = {};
+    const newSchema = mapSchema(schema, {
+        [MapperKind.OBJECT_TYPE]: type => {
+            if (type.name === typeName) {
+                const config = type.toConfig();
+                const originalFieldConfigMap = config.fields;
+                const newFieldConfigMap = {};
+                for (const fieldName in originalFieldConfigMap) {
+                    const originalFieldConfig = originalFieldConfigMap[fieldName];
+                    if (testFn(fieldName, originalFieldConfig)) {
+                        removedFields[fieldName] = originalFieldConfig;
+                    }
+                    else {
+                        newFieldConfigMap[fieldName] = originalFieldConfig;
+                    }
+                }
+                for (const fieldName in newFields) {
+                    const fieldConfig = newFields[fieldName];
+                    newFieldConfigMap[fieldName] = fieldConfig;
+                }
+                return correctASTNodes(new GraphQLObjectType({
+                    ...config,
+                    fields: newFieldConfigMap,
+                }));
+            }
+        },
+    });
+    return [newSchema, removedFields];
+}