mvellandi

mvellandi

Exploring Graphs with Elixir: Installing Neo4j (p.141)

Exploring Graphs with Elixir by @tonyhammond: P.181 — Ch 5 > Creating the PropertyGraph Project

For anyone curious about installing Neo4j or experiencing issues.
There’s a “Neo4j Desktop” which includes “Enterprise Edition”, and there’s a “Community Edition” which I chose.

For Mac, I used this Homebrew formula
Also brew install the listed openjdk version to avoid potential errors when starting neo4j.
I had a previous openjdk version installed which caused issues, so reinstalled.

If using APOC, you probably might need to enable it as a plugin.
For mac, I went to my installation directory at: $HOME/neo4j)
then move the “apoc-version-core.jar” file from the “labs” to the “plugins” directory.

Lastly, if you’re getting errors, you may need to modify the neo4j configuration file to allow security settings for external plugins/other full database access
Mac with Homebrew: $HOME/neo4j/conf/neo4j.conf

I added this line after googling my error:

dbms.security.procedures.unrestricted=gds.*,apoc.*

First Post!

tonyhammond

tonyhammond

Author of Exploring Graphs with Elixir

Hi mvellandi:

Am late to this forum but will be going back though your earlier comments. And thanks for posting those. Let me start here anyway. :slight_smile:

So, I had been keping (brief) notes on server installation back to an appendix which we didn’t include in the beta. I thought I had also included something about APOC installation there but now see that I haven’t. Must have made a mental note and then not followed up. But perhaps I could have also said something in the text. I just saw that I added something similar for the n10s library in Chapter 11:

Installation is very simple. You just need to copy the neosemantics jar file into the plugins folder of your local Neo4j instance, update the Neo4j config file, and restart the server. For details, see the Installation guidelines.

Btw, I didn’t know you could install Neo4j using brew. Very cool. Also I did have to upgrade my openjdk for the latest Neo4j.

One thing I haven’t discussed in the book are the UIs for the various graph databases which can be very helpful in visualizing the graphs. I guess I was more focused on interacting with graph databases from an Elixir perspective only, and mainly from IEx. And so I didn’t talk about jumping between different tools which certainly allows for a much better understanding.

Where Next?

Popular Pragmatic Bookshelf topics Top

jon
Some minor things in the paper edition that says “3 2020” on the title page verso, not mentioned in the book’s errata online: p. 186 But...
New
iPaul
page 37 ANTLRInputStream input = new ANTLRInputStream(is); as of ANTLR 4 .8 should be: CharStream stream = CharStreams.fromStream(i...
New
telemachus
Python Testing With Pytest - Chapter 2, warnings for “unregistered custom marks” While running the smoke tests in Chapter 2, I get these...
New
adamwoolhether
When trying to generate the protobuf .go file, I receive this error: Unknown flag: --go_opt libprotoc 3.12.3 MacOS 11.3.1 Googling ...
New
jskubick
I’m under the impression that when the reader gets to page 136 (“View Data with the Database Inspector”), the code SHOULD be able to buil...
New
digitalbias
Title: Build a Weather Station with Elixir and Nerves: Problem connecting to Postgres with Grafana on (page 64) If you follow the defau...
New
brunogirin
When I run the coverage example to report on missing lines, I get: pytest --cov=cards --report=term-missing ch7 ERROR: usage: pytest [op...
New
oaklandgit
Hi, I completed chapter 6 but am getting the following error when running: thread 'main' panicked at 'Failed to load texture: IoError(O...
New
jwandekoken
Book: Programming Phoenix LiveView, page 142 (157/378), file lib/pento_web/live/product_live/form_component.ex, in the function below: d...
New
New

Other popular topics Top

Devtalk
Reading something? Working on something? Planning something? Changing jobs even!? If you’re up for sharing, please let us know what you’...
1037 19435 386
New
ohm
Which, if any, games do you play? On what platform? I just bought (and completed) Minecraft Dungeons for my Nintendo Switch. Other than ...
New
DevotionGeo
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
New
New
PragmaticBookshelf
Rust is an exciting new programming language combining the power of C with memory safety, fearless concurrency, and productivity boosters...
New
AstonJ
I have seen the keycaps I want - they are due for a group-buy this week but won’t be delivered until October next year!!! :rofl: The Ser...
New
AstonJ
Do the test and post your score :nerd_face: :keyboard: If possible, please add info such as the keyboard you’re using, the layout (Qw...
New
PragmaticBookshelf
Programming Ruby is the most complete book on Ruby, covering both the language itself and the standard library as well as commonly used t...
New
AstonJ
This is cool! DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON We just witnessed something incredible: the largest open-s...
New
NewsBot
Node.js v22.14.0 has been released. Link: Release 2025-02-11, Version 22.14.0 'Jod' (LTS), @aduh95 · nodejs/node · GitHub
New

Sub Categories: