@graphql-tools/utils
Version:
Common package containing utils and types for GraphQL tools
68 lines (67 loc) • 4.02 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.filterSchema = filterSchema;
const graphql_1 = require("graphql");
const Interfaces_js_1 = require("./Interfaces.js");
const mapSchema_js_1 = require("./mapSchema.js");
function filterSchema({ schema, typeFilter = () => true, fieldFilter = undefined, rootFieldFilter = undefined, objectFieldFilter = undefined, interfaceFieldFilter = undefined, inputObjectFieldFilter = undefined, argumentFilter = undefined, directiveFilter = undefined, enumValueFilter = undefined, }) {
const filteredSchema = (0, mapSchema_js_1.mapSchema)(schema, {
[Interfaces_js_1.MapperKind.QUERY]: (type) => filterRootFields(type, 'Query', rootFieldFilter, argumentFilter),
[Interfaces_js_1.MapperKind.MUTATION]: (type) => filterRootFields(type, 'Mutation', rootFieldFilter, argumentFilter),
[Interfaces_js_1.MapperKind.SUBSCRIPTION]: (type) => filterRootFields(type, 'Subscription', rootFieldFilter, argumentFilter),
[Interfaces_js_1.MapperKind.OBJECT_TYPE]: (type) => typeFilter(type.name, type)
? filterElementFields(graphql_1.GraphQLObjectType, type, objectFieldFilter || fieldFilter, argumentFilter)
: null,
[Interfaces_js_1.MapperKind.INTERFACE_TYPE]: (type) => typeFilter(type.name, type)
? filterElementFields(graphql_1.GraphQLInterfaceType, type, interfaceFieldFilter || fieldFilter, argumentFilter)
: null,
[Interfaces_js_1.MapperKind.INPUT_OBJECT_TYPE]: (type) => typeFilter(type.name, type)
? filterElementFields(graphql_1.GraphQLInputObjectType, type, inputObjectFieldFilter || fieldFilter)
: null,
[Interfaces_js_1.MapperKind.UNION_TYPE]: (type) => typeFilter(type.name, type) ? undefined : null,
[Interfaces_js_1.MapperKind.ENUM_TYPE]: (type) => typeFilter(type.name, type) ? undefined : null,
[Interfaces_js_1.MapperKind.SCALAR_TYPE]: (type) => typeFilter(type.name, type) ? undefined : null,
[Interfaces_js_1.MapperKind.DIRECTIVE]: directive => directiveFilter && !directiveFilter(directive.name, directive) ? null : undefined,
[Interfaces_js_1.MapperKind.ENUM_VALUE]: (valueConfig, typeName, _schema, externalValue) => enumValueFilter && !enumValueFilter(typeName, externalValue, valueConfig) ? null : undefined,
});
return filteredSchema;
}
function filterRootFields(type, operation, rootFieldFilter, argumentFilter) {
if (rootFieldFilter || argumentFilter) {
const config = type.toConfig();
for (const fieldName in config.fields) {
const field = config.fields[fieldName];
if (rootFieldFilter && !rootFieldFilter(operation, fieldName, config.fields[fieldName])) {
delete config.fields[fieldName];
}
else if (argumentFilter && field.args) {
for (const argName in field.args) {
if (!argumentFilter(type.name, fieldName, argName, field.args[argName])) {
delete field.args[argName];
}
}
}
}
return new graphql_1.GraphQLObjectType(config);
}
return type;
}
function filterElementFields(ElementConstructor, type, fieldFilter, argumentFilter) {
if (fieldFilter || argumentFilter) {
const config = type.toConfig();
for (const fieldName in config.fields) {
const field = config.fields[fieldName];
if (fieldFilter && !fieldFilter(type.name, fieldName, config.fields[fieldName])) {
delete config.fields[fieldName];
}
else if (argumentFilter && 'args' in field) {
for (const argName in field.args) {
if (!argumentFilter(type.name, fieldName, argName, field.args[argName])) {
delete field.args[argName];
}
}
}
}
return new ElementConstructor(config);
}
}