@papabravocorp/pluggable-logger/dist/providers/adls.js

A pluggable logger for Node.js that writes structured logs to local file systems, Azure ADLS, or custom storage backends.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AdlsProvider = void 0;
const storage_file_datalake_1 = require("@azure/storage-file-datalake");
const buffer_1 = require("buffer");
class AdlsProvider {
    constructor(accountUrl, credential, container) {
        this.container = container;
        const svc = new storage_file_datalake_1.DataLakeServiceClient(accountUrl, credential);
        this.fileSystemClient = svc.getFileSystemClient(container);
    }
    async write(entry) {
        var _a;
        const date = entry.timestamp.slice(0, 10);
        const path = `logs/${date}.log`;
        const fileClient = this.fileSystemClient.getFileClient(path);
        if (!(await fileClient.exists())) {
            await fileClient.create();
        }
        const data = JSON.stringify(entry) + '\n';
        const offset = (_a = (await fileClient.getProperties()).contentLength) !== null && _a !== void 0 ? _a : 0;
        await fileClient.append(data, offset, buffer_1.Buffer.byteLength(data));
        await fileClient.flush(offset + buffer_1.Buffer.byteLength(data));
    }
}
exports.AdlsProvider = AdlsProvider;