1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.ClassSerializerInterceptor = void 0;
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4 | const tslib_1 = require("tslib");
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5 | const operators_1 = require("rxjs/operators");
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6 | const core_1 = require("../decorators/core");
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7 | const load_package_util_1 = require("../utils/load-package.util");
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8 | const shared_utils_1 = require("../utils/shared.utils");
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9 | const class_serializer_constants_1 = require("./class-serializer.constants");
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10 | let classTransformer = {};
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11 |
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12 |
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13 |
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14 | const REFLECTOR = 'Reflector';
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15 | let ClassSerializerInterceptor = class ClassSerializerInterceptor {
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16 | constructor(reflector, defaultOptions = {}) {
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17 | this.reflector = reflector;
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18 | this.defaultOptions = defaultOptions;
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19 | classTransformer = load_package_util_1.loadPackage('class-transformer', 'ClassSerializerInterceptor', () => require('class-transformer'));
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20 | require('class-transformer');
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21 | }
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22 | intercept(context, next) {
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23 | const contextOptions = this.getContextOptions(context);
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24 | const options = Object.assign(Object.assign({}, this.defaultOptions), contextOptions);
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25 | return next
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26 | .handle()
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27 | .pipe(operators_1.map((res) => this.serialize(res, options)));
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28 | }
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29 | serialize(response, options) {
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30 | const isArray = Array.isArray(response);
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31 | if (!shared_utils_1.isObject(response) && !isArray) {
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32 | return response;
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33 | }
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34 | return isArray
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35 | ? response.map(item => this.transformToPlain(item, options))
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36 | : this.transformToPlain(response, options);
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37 | }
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38 | transformToPlain(plainOrClass, options) {
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39 | return plainOrClass && plainOrClass.constructor !== Object
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40 | ? classTransformer.classToPlain(plainOrClass, options)
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41 | : plainOrClass;
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42 | }
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43 | getContextOptions(context) {
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44 | return (this.reflectSerializeMetadata(context.getHandler()) ||
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45 | this.reflectSerializeMetadata(context.getClass()));
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46 | }
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47 | reflectSerializeMetadata(obj) {
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48 | return this.reflector.get(class_serializer_constants_1.CLASS_SERIALIZER_OPTIONS, obj);
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49 | }
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50 | };
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51 | ClassSerializerInterceptor = tslib_1.__decorate([
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52 | core_1.Injectable(),
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53 | tslib_1.__param(0, core_1.Inject(REFLECTOR)),
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54 | tslib_1.__param(1, core_1.Optional()),
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55 | tslib_1.__metadata("design:paramtypes", [Object, Object])
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56 | ], ClassSerializerInterceptor);
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57 | exports.ClassSerializerInterceptor = ClassSerializerInterceptor;
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