@nestjs/swagger
Version:
Nest - modern, fast, powerful node.js web framework (@swagger)
42 lines (41 loc) • 2.13 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ParameterMetadataAccessor = void 0;
const constants_1 = require("@nestjs/common/constants");
const route_paramtypes_enum_1 = require("@nestjs/common/enums/route-paramtypes.enum");
const lodash_1 = require("lodash");
const reverse_object_keys_util_1 = require("../utils/reverse-object-keys.util");
const PARAM_TOKEN_PLACEHOLDER = 'placeholder';
class ParameterMetadataAccessor {
explore(instance, prototype, method) {
const types = Reflect.getMetadata(constants_1.PARAMTYPES_METADATA, instance, method.name);
if (!(types === null || types === void 0 ? void 0 : types.length)) {
return undefined;
}
const routeArgsMetadata = Reflect.getMetadata(constants_1.ROUTE_ARGS_METADATA, instance.constructor, method.name) || {};
const parametersWithType = (0, lodash_1.mapValues)((0, reverse_object_keys_util_1.reverseObjectKeys)(routeArgsMetadata), (param) => ({
type: types[param.index],
name: param.data,
required: true
}));
const excludePredicate = (val) => val.in === PARAM_TOKEN_PLACEHOLDER || (val.name && val.in === 'body');
const parameters = (0, lodash_1.omitBy)((0, lodash_1.mapValues)(parametersWithType, (val, key) => (Object.assign(Object.assign({}, val), { in: this.mapParamType(key) }))), excludePredicate);
return !(0, lodash_1.isEmpty)(parameters) ? parameters : undefined;
}
mapParamType(key) {
const keyPair = key.split(':');
switch (Number(keyPair[0])) {
case route_paramtypes_enum_1.RouteParamtypes.BODY:
return 'body';
case route_paramtypes_enum_1.RouteParamtypes.PARAM:
return 'path';
case route_paramtypes_enum_1.RouteParamtypes.QUERY:
return 'query';
case route_paramtypes_enum_1.RouteParamtypes.HEADERS:
return 'header';
default:
return PARAM_TOKEN_PLACEHOLDER;
}
}
}
exports.ParameterMetadataAccessor = ParameterMetadataAccessor;