Powering an API with GraphQL, Golang, and NoSQL
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This document discusses powering an API with GraphQL, Golang, and NoSQL databases. It outlines some limitations of RESTful APIs and how GraphQL provides more flexible client-server payloads and queries with fewer endpoints. GraphQL queries are processed in Go and integrated with the Couchbase NoSQL database, which allows flexible JSON schema and powerful N1QL queries. In summary, GraphQL and Couchbase provide an API with flexible responses, reduced endpoints, and powerful querying of JSON data stored in Couchbase.
Powering an API with GraphQL, Golang, and NoSQL
- 1. Powering an API with GraphQL, Golang, and NoSQL Nic Raboy Senior Developer Evangelist at HERE Technologies
- 3. RESTful API
- 4. RESTful API with Multiple Related Endpoints
- 5. RESTful API Nothing’s wrong with RESTful APIs, but they could be better!
- 6. RESTful API • Too many API endpoints to remember • Too many API endpoints to maintain • Too much data to process • Too large of data payloads
- 8. The Benefits of GraphQL graphql.org graphql.org
- 9. GraphQL
- 10. GraphQL
- 11. GraphQL • Server to client payloads are flexible • Client to server queries are flexible • Minimal API endpoints to remember
- 12. Processing GraphQL in Go
- 13. GraphQL
- 15. GraphQL Query
- 16. GraphQL Query
- 17. GraphQL Query
- 18. GraphQL Endpoint
- 20. Integrating a NoSQL Database
- 21. Couchbase: The Complete Database Solution Infographic provided by Couchbase
- 22. 22 Couchbase Lite Overview • Cross-platform support for all major operating systems and platforms • Built native from the ground up • 500kb for most platforms • 256-bit AES full database encryption Infographic provided by Couchbase
- 23. 23 Couchbase Server Overview • Scale easily to thousands of nodes • Consistent high performance that supports millions of concurrent users • Flexible JSON data model • 24x365 always-on availability Infographic provided by Couchbase
- 24. 24 Couchbase Sync Gateway Overview • Synchronize data between Couchbase Lite and Couchbase Server • REST, Stream, Batch, and Event APIs • Pluggable authentication • Fine grained user and role based access control • Elastically scalable in real-time Infographic provided by Couchbase
- 25. The Power of the Flexible JSON Schema • Ability to store data in multiple ways • De-normalized single document, as opposed to normalizing data across multiple table • Dynamic Schema to add new values when needed Infographic provided by Couchbase
- 26. Couchbase
- 27. Couchbase
- 28. Couchbase
- 30. What is N1QL? • Non-first (N1) Normal Form Query Language (QL) • It is based on ANSI 92 SQL • Its query engine is optimized for modern, highly parallel multi-core execution • SQL-like Query Language • Expressive, familiar, and feature-rich language for querying, transforming, and manipulating JSON data • N1QL extends SQL to handle data that is: • Nested: Contains nested objects, arrays • Heterogeneous: Schema-optional, non-uniform • Distributed: Partitioned across a cluster
- 31. N1QL (Expressive) • Access to every part of JSON document • Scalar & Aggregate functions • Subqueries in the FROM clause • Aggregation on arrays Expressive, familiar, and feature-rich language for querying, transforming, and manipulating JSON data
- 32. N1QL (Familiar) • SELECT * FROM bucket WHERE … • INSERT single & multiple documents • UPDATE any part of JSON document & use complex filter • DELETE • MERGE two sets of documents using traditional MERGE statement • EXPLAIN to understand the query plan • EXPLAIN SELECT * FROM bucket WHERE … Expressive, familiar, and feature-rich language for querying, transforming, and manipulating JSON data
- 33. N1QL (Feature-Rich) • Access to every part of JSON document • Functions (Date, Pattern, Array, Conditional, etc) • https://developer.couchbase.com/documentation/server/current/n1ql/n1ql-language-reference/functions.html • JOIN, NEST, UNNEST • Covering Index • Prepared Statements • USE KEYS, LIKE Expressive, familiar, and feature-rich language for querying, transforming, and manipulating JSON data
- 34. Couchbase
- 44. Closing Thoughts
- 45. Summary • GraphQL limits the response payload • GraphQL offers flexibility in API responses • GraphQL cuts down the API endpoints • GraphQL is not a substitute for backend management • Couchbase is flexible with JSON • Couchbase is powerful with N1QL queries
- 46. Getting Help • GraphQL - graphql.org • Couchbase - couchbase.com • Twitter - @nraboy • Blog - thepolyglotdeveloper.com
- 47. THANK YOU