qus-node-aws-clients/dist/s3/s3.service.js

client api for aws tools

"use strict";
var __esDecorate = (this && this.__esDecorate) || function (ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {
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    done = true;
};
var __runInitializers = (this && this.__runInitializers) || function (thisArg, initializers, value) {
    var useValue = arguments.length > 2;
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        value = useValue ? initializers[i].call(thisArg, value) : initializers[i].call(thisArg);
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};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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};
var __setFunctionName = (this && this.__setFunctionName) || function (f, name, prefix) {
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    return Object.defineProperty(f, "name", { configurable: true, value: prefix ? "".concat(prefix, " ", name) : name });
};
var __asyncValues = (this && this.__asyncValues) || function (o) {
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    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.S3Service = void 0;
/*
 * MIT License
 *
 * Copyright (c) 2024 Quantum Unit Solutions
 * Author: David Meikle
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
const client_s3_1 = require("@aws-sdk/client-s3");
const stream_1 = require("stream");
const common_1 = require("@nestjs/common");
let S3Service = (() => {
    let _classDecorators = [(0, common_1.Injectable)()];
    let _classDescriptor;
    let _classExtraInitializers = [];
    let _classThis;
    var S3Service = _classThis = class {
        constructor(s3Client, region) {
            this.s3Client = s3Client;
            this.region = region;
        }
        /**
         * Uploads a file to S3.
         *
         * @param bucketName
         * @param filePath
         * @param data
         * @param mimeType
         */
        uploadToS3(bucketName, filePath, data, mimeType) {
            return __awaiter(this, void 0, void 0, function* () {
                const input = {
                    Bucket: bucketName,
                    Key: filePath,
                    Body: data,
                    ContentType: mimeType,
                };
                const command = new client_s3_1.PutObjectCommand(input);
                try {
                    return yield this.s3Client.send(command);
                }
                catch (error) {
                    throw new Error(`Error uploading to S3: ${error.message}`);
                }
            });
        }
        /**
         * Retrieves an item from S3.
         *
         * @param bucketName
         * @param filePath
         */
        getFromS3(bucketName, filePath) {
            return __awaiter(this, void 0, void 0, function* () {
                var _a, e_1, _b, _c;
                const input = {
                    Bucket: bucketName,
                    Key: filePath,
                };
                const command = new client_s3_1.GetObjectCommand(input);
                try {
                    const response = yield this.s3Client.send(command);
                    if (response.Body instanceof stream_1.Readable) {
                        const chunks = [];
                        try {
                            for (var _d = true, _e = __asyncValues(response.Body), _f; _f = yield _e.next(), _a = _f.done, !_a; _d = true) {
                                _c = _f.value;
                                _d = false;
                                const chunk = _c;
                                chunks.push(chunk);
                            }
                        }
                        catch (e_1_1) { e_1 = { error: e_1_1 }; }
                        finally {
                            try {
                                if (!_d && !_a && (_b = _e.return)) yield _b.call(_e);
                            }
                            finally { if (e_1) throw e_1.error; }
                        }
                        // Concatenate all chunks into a single Buffer
                        return Buffer.concat(chunks).toString('utf-8');
                    }
                    else {
                        throw new Error('Unexpected response body type');
                    }
                }
                catch (error) {
                    throw new Error(`Error retrieving from S3: ${error.message}`);
                }
            });
        }
        getFromS3AsBinary(bucketName, filePath) {
            return __awaiter(this, void 0, void 0, function* () {
                var _a, e_2, _b, _c;
                const input = {
                    Bucket: bucketName,
                    Key: filePath,
                };
                const command = new client_s3_1.GetObjectCommand(input);
                try {
                    const response = yield this.s3Client.send(command);
                    if (response.Body instanceof stream_1.Readable) {
                        const chunks = [];
                        try {
                            for (var _d = true, _e = __asyncValues(response.Body), _f; _f = yield _e.next(), _a = _f.done, !_a; _d = true) {
                                _c = _f.value;
                                _d = false;
                                const chunk = _c;
                                chunks.push(chunk);
                            }
                        }
                        catch (e_2_1) { e_2 = { error: e_2_1 }; }
                        finally {
                            try {
                                if (!_d && !_a && (_b = _e.return)) yield _b.call(_e);
                            }
                            finally { if (e_2) throw e_2.error; }
                        }
                        return Buffer.concat(chunks);
                    }
                    else {
                        throw new Error('Unexpected response body type');
                    }
                }
                catch (error) {
                    throw new Error(`Error retrieving from S3: ${error.message}`);
                }
            });
        }
        /**
         * Retrieves the most recent file from S3 based on a prefix.
         *
         * @param bucketName
         * @param prefix
         */
        getMostRecentFile(bucketName, prefix) {
            return __awaiter(this, void 0, void 0, function* () {
                const command = new client_s3_1.ListObjectsV2Command({ Bucket: bucketName, Prefix: prefix });
                const response = yield this.s3Client.send(command);
                if (!response.Contents || response.Contents.length === 0) {
                    console.log('No files found.');
                    return undefined;
                }
                // Extract filenames and sort by date
                const files = response.Contents.map((item) => item.Key).filter((key) => key.includes('_'));
                const sortedFiles = files.sort((a, b) => {
                    const dateA = new Date(a.slice(-14, -4)); // Extract last 10 characters before '.pdf'
                    const dateB = new Date(b.slice(-14, -4));
                    return dateB.getTime() - dateA.getTime();
                });
                return sortedFiles[0]; // Most recent file
            });
        }
    };
    __setFunctionName(_classThis, "S3Service");
    (() => {
        const _metadata = typeof Symbol === "function" && Symbol.metadata ? Object.create(null) : void 0;
        __esDecorate(null, _classDescriptor = { value: _classThis }, _classDecorators, { kind: "class", name: _classThis.name, metadata: _metadata }, null, _classExtraInitializers);
        S3Service = _classThis = _classDescriptor.value;
        if (_metadata) Object.defineProperty(_classThis, Symbol.metadata, { enumerable: true, configurable: true, writable: true, value: _metadata });
        __runInitializers(_classThis, _classExtraInitializers);
    })();
    return S3Service = _classThis;
})();
exports.S3Service = S3Service;