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Learning Neo4j 3.x

You're reading from   Learning Neo4j 3.x Effective data modeling, performance tuning and data visualization techniques in Neo4j

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Product type Paperback
Published in Oct 2017
Publisher Packt
ISBN-13 9781786466143
Length 316 pages
Edition 2nd Edition
Languages
Tools
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Authors (2):
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Jerome Baton Jerome Baton
Author Profile Icon Jerome Baton
Jerome Baton
Rik Van Bruggen Rik Van Bruggen
Author Profile Icon Rik Van Bruggen
Rik Van Bruggen
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Toc

Table of Contents (17) Chapters Close

Preface 1. Graph Theory and Databases FREE CHAPTER 2. Getting Started with Neo4j 3. Modeling Data for Neo4j 4. Getting Started with Cypher 5. Awesome Procedures on Cypher - APOC 6. Extending Cypher 7. Query Performance Tuning 8. Importing Data into Neo4j 9. Going Spatial 10. Security 11. Visualizations for Neo4j 12. Data Refactoring with Neo4j 13. Clustering 14. Use Case Example - Recommendations 15. Use Case Example - Impact Analysis and Simulation 16. Tips and Tricks

Importing from a JSON source


To import a JSON datasource, we need to use APOC (see Chapter 5, Awesome Procedures on Cypher – APOC). Therefore, make sure that you have installed it.

Note

We will use a JSON file that contains the list of the countries of the world. You can find it here in a human-readable form,  https://github.com/mledoze/countries/blob/master/countries.json, and in a computer-processable form at https://raw.githubusercontent.com/mledoze/countries/master/countries.json, which I saved in the import folder.

To use the local copy, set the following in your neo4j.conf (and restart the server):

apoc.import.file.enabled=true

However, at this time, it's the full path that must be given as a parameter, so adapt the following examples to your system.

Try this query to get a view of the data:

WITH "file:////home/jerome/Tools/neo/neo4j-community-3.2.0/import/countries.json" AS url
CALL apoc.load.json(url) YIELD value
RETURN value.cca2, value.cca3,value.name.common, value.name.official, value...
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