1 | import { GraphQLInputObjectType, GraphQLInterfaceType, GraphQLObjectType, } from 'graphql';
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2 | import { MapperKind } from './Interfaces.js';
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3 | import { mapSchema } from './mapSchema.js';
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4 | export function filterSchema({ schema, typeFilter = () => true, fieldFilter = undefined, rootFieldFilter = undefined, objectFieldFilter = undefined, interfaceFieldFilter = undefined, inputObjectFieldFilter = undefined, argumentFilter = undefined, }) {
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5 | const filteredSchema = mapSchema(schema, {
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6 | [MapperKind.QUERY]: (type) => filterRootFields(type, 'Query', rootFieldFilter, argumentFilter),
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7 | [MapperKind.MUTATION]: (type) => filterRootFields(type, 'Mutation', rootFieldFilter, argumentFilter),
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8 | [MapperKind.SUBSCRIPTION]: (type) => filterRootFields(type, 'Subscription', rootFieldFilter, argumentFilter),
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9 | [MapperKind.OBJECT_TYPE]: (type) => typeFilter(type.name, type)
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10 | ? filterElementFields(GraphQLObjectType, type, objectFieldFilter || fieldFilter, argumentFilter)
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11 | : null,
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12 | [MapperKind.INTERFACE_TYPE]: (type) => typeFilter(type.name, type)
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13 | ? filterElementFields(GraphQLInterfaceType, type, interfaceFieldFilter || fieldFilter, argumentFilter)
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14 | : null,
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15 | [MapperKind.INPUT_OBJECT_TYPE]: (type) => typeFilter(type.name, type)
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16 | ? filterElementFields(GraphQLInputObjectType, type, inputObjectFieldFilter || fieldFilter)
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17 | : null,
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18 | [MapperKind.UNION_TYPE]: (type) => (typeFilter(type.name, type) ? undefined : null),
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19 | [MapperKind.ENUM_TYPE]: (type) => (typeFilter(type.name, type) ? undefined : null),
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20 | [MapperKind.SCALAR_TYPE]: (type) => (typeFilter(type.name, type) ? undefined : null),
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21 | });
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22 | return filteredSchema;
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23 | }
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24 | function filterRootFields(type, operation, rootFieldFilter, argumentFilter) {
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25 | if (rootFieldFilter || argumentFilter) {
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26 | const config = type.toConfig();
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27 | for (const fieldName in config.fields) {
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28 | const field = config.fields[fieldName];
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29 | if (rootFieldFilter && !rootFieldFilter(operation, fieldName, config.fields[fieldName])) {
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30 | delete config.fields[fieldName];
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31 | }
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32 | else if (argumentFilter && field.args) {
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33 | for (const argName in field.args) {
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34 | if (!argumentFilter(operation, fieldName, argName, field.args[argName])) {
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35 | delete field.args[argName];
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36 | }
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37 | }
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38 | }
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39 | }
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40 | return new GraphQLObjectType(config);
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41 | }
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42 | return type;
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43 | }
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44 | function filterElementFields(ElementConstructor, type, fieldFilter, argumentFilter) {
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45 | if (fieldFilter || argumentFilter) {
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46 | const config = type.toConfig();
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47 | for (const fieldName in config.fields) {
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48 | const field = config.fields[fieldName];
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49 | if (fieldFilter && !fieldFilter(type.name, fieldName, config.fields[fieldName])) {
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50 | delete config.fields[fieldName];
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51 | }
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52 | else if (argumentFilter && 'args' in field) {
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53 | for (const argName in field.args) {
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54 | if (!argumentFilter(type.name, fieldName, argName, field.args[argName])) {
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55 | delete field.args[argName];
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56 | }
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57 | }
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58 | }
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59 | }
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60 | return new ElementConstructor(config);
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61 | }
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62 | }
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