provided graphical user interface (GUI) tool, MongoDB Compass Install MongoDB for VS Code, and use the Playgrounds feature Install the legacy version of MongoDB's command-line tool, the Mongo Shell: mongo (you will often find this binary bundled with a MongoDB database installation) Install the modern version of MongoDB's command-line tool, the MongoDB Shell: mongosh There are many options for the client tool, some of which are: Consequently, you must use Atlas for your database deployment if you want to run those examples. Note that the aggregation pipelines in the Full-Text Search Examples section leverage Atlas Search. Install and run a MongoDB single server locally on your workstation.Provision a Free Tier MongoDB Cluster in MongoDB Atlas, which is MongoDB Inc.'s cloud-based Database-as-a-Service (once deployed, in the Atlas Console, there is a button you can click to copy the URL of the cluster).If you don't already have access to a MongoDB database, the two most accessible options for running a database for free are: You need to know the MongoDB URL for connecting to the database and, if authentication is enabled, the credentials required for full read and write access. You can run this deployment locally on your workstation or remotely on-prem or in the cloud. The database deployment for you to connect to can be a single server, a replica set or a sharded cluster. A few of the example pipelines use aggregation features that MongoDB introduced in releases following version 4.2. Note that each example aggregation pipeline shown in the second major part of this book is marked with the minimum version of MongoDB that you must use to execute the pipeline. A MongoDB client tool running on your workstation with which to submit aggregation execution requests and to view the results.A MongoDB database, version 4.2 or greater, running somewhere which is network accessible from your workstation.Appendix: Create Atlas Search Indexįor developing aggregation pipelines effectively, and also to try the examples in the second half of this book, you need the following two elements: Summarising Arrays For First, Last, Min, Max & Average Advanced Use Of Expressions For Array Processing Embrace Composability For Increased Productivity
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