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 file_stream_1 = require("../file-stream");
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8 | const load_package_util_1 = require("../utils/load-package.util");
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9 | const shared_utils_1 = require("../utils/shared.utils");
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10 | const class_serializer_constants_1 = require("./class-serializer.constants");
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11 | let classTransformer = {};
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12 |
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13 |
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14 |
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15 | const REFLECTOR = 'Reflector';
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16 | let ClassSerializerInterceptor = class ClassSerializerInterceptor {
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17 | constructor(reflector, defaultOptions = {}) {
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18 | var _a;
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19 | this.reflector = reflector;
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20 | this.defaultOptions = defaultOptions;
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21 | classTransformer =
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22 | (_a = defaultOptions === null || defaultOptions === void 0 ? void 0 : defaultOptions.transformerPackage) !== null && _a !== void 0 ? _a : (0, load_package_util_1.loadPackage)('class-transformer', 'ClassSerializerInterceptor', () => require('class-transformer'));
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23 | if (!(defaultOptions === null || defaultOptions === void 0 ? void 0 : defaultOptions.transformerPackage)) {
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24 | require('class-transformer');
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25 | }
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26 | }
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27 | intercept(context, next) {
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28 | const contextOptions = this.getContextOptions(context);
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29 | const options = Object.assign(Object.assign({}, this.defaultOptions), contextOptions);
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30 | return next
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31 | .handle()
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32 | .pipe((0, operators_1.map)((res) => this.serialize(res, options)));
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33 | }
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34 | |
35 |
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36 |
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37 | serialize(response, options) {
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38 | if (!(0, shared_utils_1.isObject)(response) || response instanceof file_stream_1.StreamableFile) {
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39 | return response;
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40 | }
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41 | return Array.isArray(response)
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42 | ? response.map(item => this.transformToPlain(item, options))
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43 | : this.transformToPlain(response, options);
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44 | }
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45 | transformToPlain(plainOrClass, options) {
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46 | if (!plainOrClass) {
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47 | return plainOrClass;
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48 | }
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49 | if (!options.type) {
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50 | return classTransformer.classToPlain(plainOrClass, options);
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51 | }
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52 | if (plainOrClass instanceof options.type) {
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53 | return classTransformer.classToPlain(plainOrClass, options);
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54 | }
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55 | const instance = classTransformer.plainToClass(options.type, plainOrClass);
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56 | return classTransformer.classToPlain(instance, options);
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57 | }
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58 | getContextOptions(context) {
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59 | return this.reflector.getAllAndOverride(class_serializer_constants_1.CLASS_SERIALIZER_OPTIONS, [
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60 | context.getHandler(),
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61 | context.getClass(),
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62 | ]);
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63 | }
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64 | };
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65 | ClassSerializerInterceptor = tslib_1.__decorate([
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66 | (0, core_1.Injectable)(),
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67 | tslib_1.__param(0, (0, core_1.Inject)(REFLECTOR)),
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68 | tslib_1.__param(1, (0, core_1.Optional)()),
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69 | tslib_1.__metadata("design:paramtypes", [Object, Object])
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70 | ], ClassSerializerInterceptor);
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71 | exports.ClassSerializerInterceptor = ClassSerializerInterceptor;
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