GraphQL and Neo4j - Simple and Intelligent Modern Apps
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This document discusses using GraphQL and Neo4j together for building modern applications. It notes that the Neo4j GraphQL library allows for low-code, secure and flexible querying of graph data from Neo4j using GraphQL. An example is provided showing how a GraphQL query is translated to a Cypher query to retrieve movie title and runtime data from Neo4j.
![GraphQL - a syntax to query data as a graph
type Project {
name: String
tagline: String
contributors: [User]
}
{
project(name: "GraphQL") {
tagline
}
}
{
"project": {
"tagline": "A query language for APIs"
}
}
Describe your data Ask for what you want Get predictable results
Source: graphql.org
● Generally used to download server data to client
● GraphQL 3 main features:
○ Allows the client to specify exactly the data it needs
○ Facilitates the aggregation of data from multiple sources
○ Uses a system of types to describe the data
=> No more over-and under-fetching](https://image.slidesharecdn.com/graphqlandneo4j-simpleandintelligentmodernapps-231211120335-71120eed/85/GraphQL-and-Neo4j-Simple-and-Intelligent-Modern-Apps-13-320.jpg)
GraphQL and Neo4j - Simple and Intelligent Modern Apps
- 1. GraphQL & Neo4j Simple & Intelligent Modern Apps ● Shorter TTV cycles ● Neo4j GraphQL library is low-code, secure, flexible & developer-friendly
- 2. “Think in graphs, not endpoints.” Lessons From 4 Years of GraphQL by Lee Byron, GraphQL Co-Inventor. “Everything is a graph.” Lessons From 4 Years of Neo4j as a pre-sales by Nicolas Rouyer. https://www.howtographql.com/basics/1-graphql-is-the-better-rest/
- 3. Your friendly speaker Nicolas Rouyer Sales Engineer @neo4j (4+years) I like stickers! Violinist @rrrouyer nico@neo4j.com
- 4. Neo4j recap
- 5. ASTRAZENECA Uncovering new molecular relationships in enormous datasets for accelerated drug discovery was a daunting task for AstraZeneca.
- 6. Neo4j Inc. All rights reserved 2023 Image showing case study goes here Placeholder CATERPILLAR Unlocking insights for efficient equipment repair and maintenance across tens of millions of technical documents was an enormous challenge for Caterpillar.
- 7. Data, meet Graph. Graph creates a more intuitive and connected view of data relationships, unlocking deeper understanding and context
- 8. The property graph -simply powerful :Employee :Analyst :City :Company name: Amy Peters date_of_birth: 1984-03-01 employee_ID: 1 :WORKS_AT start_date: 2008-01-20 :LOCATED_IN Relationships can have any number of properties (name/value pairs) Relationships are directional (but can be queried in either direction) Nodes can have any number of properties (name/value pairs) Nodes represent entities (typically nouns) Relationships connect nodes (typically verbs) Nodes can have zero or more labels (roles)
- 9. Neo4j Inc. All rights reserved 2023 By 2025, graph will be used in 80% of data and analytics innovations
- 10. Neo4j Inc. All rights reserved 2023 Real-Time Recommendations Fraud Detection Network & IT Operations Master Data Management Identity & Access Management Risk & Compliance REVEALING NEW WAYS TO SOLVE THE WORLD’S MOST PRESSING BUSINESS PROBLEMS
- 11. Neo4j Inc. All rights reserved 2023 The first-ever graph database Creator of the market category Continued market leader 300 1B+ Enterprise customers $500M in funding 170+ Global partner ecosystem 250K Community of developers and data pros 100M+ Downloads
- 12. GraphQL recap
- 13. GraphQL - a syntax to query data as a graph type Project { name: String tagline: String contributors: [User] } { project(name: "GraphQL") { tagline } } { "project": { "tagline": "A query language for APIs" } } Describe your data Ask for what you want Get predictable results Source: graphql.org ● Generally used to download server data to client ● GraphQL 3 main features: ○ Allows the client to specify exactly the data it needs ○ Facilitates the aggregation of data from multiple sources ○ Uses a system of types to describe the data => No more over-and under-fetching
- 14. The @neo4j/graphql library The @neo4j/graphql library is a "translation" library: ● Converts a client request into Cypher code ● Use type definitions ● Is low-code or even zero-code
- 16. Cypher Translation query FindMovie { movie(title: "The Terminator") { title runtime } } query FindMovie { movie(title: "The Terminator") { title runtime } } query FindMovie { movie(title: "The Terminator") { title runtime } } query FindMovie { movie(title: "The Terminator") { title runtime } } MATCH (m:Movie) WHERE m.title = "The Terminator" RETURN m { .title, .runtime } MATCH (m:Movie) WHERE m.title = "The Terminator" RETURN m { .title, .runtime } query FindMovie { movie(title: "The Terminator") { title runtime } }
- 17. Demo time
- 18. ● GitHub: https://github.com/neo4j/graphql ● Documentation: https://neo4j.com/docs/graphql ● npm: https://www.npmjs.com/package/@neo4j/graphql Thanks for listening!