Download Building Web Applications with Python and Neo4j by Sumit Gupta PDF

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By Sumit Gupta

Boost fascinating real-world Python-based net functions with Neo4j utilizing frameworks akin to Flask, Py2neo, and Django
About This Book

improve a suite of universal functions and ideas with Neo4j and Python
safe and installation the Neo4j database in production
A step by step advisor on imposing and deploying interactive Python-based internet functions on graph info model

Who This booklet Is For

If you're a Python developer and need to extend your figuring out of Python-based net purposes over Neo4j graph information types, this is often the e-book for you.
What you are going to Learn

comprehend the licensing and set up of the Neo4j database and paintings with its a number of instruments and utilities
research the intricacies of Cypher as a graph question language
paintings with Cypher to create and regulate graph facts models
combine Python and Neo4j utilizing Py2neo
boost REST-based companies over social community facts utilizing Flask and item graph versions over Neo4j
combine Django-based net functions over graph info types utilizing Neomodel
discover diversified deployment types and their applicability with current applications

In Detail

Py2neo is a straightforward and pragmatic Python library that gives entry to the preferred graph database Neo4j through its RESTful internet carrier interface. This brings with it a seriously refactored center, a cleanser API, higher functionality, and a few new idioms.

You will commence with licensing and fitting Neo4j, studying the basics of Cypher as a graph question language, and exploring Cypher optimizations. you will find tips on how to combine with a number of Python frameworks corresponding to Flask and its extensions: Py2neo, Neomodel, and Django. ultimately, the deployment facets of your Python-based Neo4j functions in a creation setting can be lined. by way of sequentially operating during the steps in every one bankruptcy, you are going to quick research and grasp a few of the implementation info and integrations of Python and Neo4j, aiding you to strengthen your use instances extra quickly.

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Extra resources for Building Web Applications with Python and Neo4j

Example text

Html. CRUD operations Create, read, update, and delete are the four basic and most common operations for any persistence storage. In this section, we will talk about the process and syntax leveraged by Neo4j to perform all these basic operations. Perform the following steps for creating, searching, and deleting data in the Neo4j database: 1. org/), which provides the creation and execution of the REST calls. 2. Open your tool and execute the following request and parameters for creating data in the Neo4j database: °° Request method type: POST °° Request URL: http://localhost:7474/db/data/transaction °° Request headers: Accept: application/json; charset=UTF-8 and Content-Type: application/json [ 17 ] Your First Query with Neo4j °° JSON-REQUEST: {"statements": [{"statement" : "CREATE (movies:Movie {Name:"Noah", ReleaseYear:"2014"});"}]} °° Additional HTTP header: Authorization = Basic 3.

Properties) from the specified location, and then starts the shell. The following are the options for connecting to the remote Neo4j server: • neo4j-shell -port : This option connects to the server running on a port different to the default port (1337) • neo4j-shell -host : This option shows the IP address or domain name of the remote host on which the Neo4j server is installed and running. [ 14 ] Chapter 1 Let's move forward and get our hands dirty with the system. To begin with and to make it simple, first we will insert the data, and then try to fetch the same data through the Neo4j shell.

Consider the following example: MATCH (n:MALE) return n;or MATCH (n:MALE:TEACHER) return n; In the preceding example, we are searching for all those nodes that are annotated with the label MALE, or with multiple labels, MALE and TEACHER. Pattern for relationships Relationships are the connection between two given nodes. They can be unidirectional or bidirectional between the two nodes. They are defined within square brackets and are given a user-defined name for further reference within the search queries.

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