GraphQL Song

Table of Contents

• Abstract
• Tech-Stack
  • Local play
• Load Testing / Benchmarking
  • Post request
• My Review
• References
  • GraphQL to be or not to be
  • Specification
  • Server internals
  • Real use-cases
  • Aggregations

Abstract

This is a wip Rust project for GraphQL learning.

Tech-Stack

The project used technologies/principal libs are following:

• Rust (stable)

• Hyper

• Juniper

• Elasticsearch-rs

• Elasticsearch

Local play

Play Elasticsearch locally as follows:

docker run -d --name elasticsearch -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" elasticsearch:7.6.1

Play the server via:

cargo run

Request could be made either by using some external tool like insomnia with the provided requests Or by using the internal included GraphIQL.

Load Testing / Benchmarking

Install artillery.io as a benchmark cli tool.

Post request

The test is here.

artillery run ./performance/graphql-song-load.yml

See some results in a HP-Zbook G4 laptop, requesting one Human object using 500 reqs/sec during 10 seconds:

All virtual users finished
Summary report @ 17:19:57(+0200) 2020-05-14
  Scenarios launched:  5000
  Scenarios completed: 5000
  Requests completed:  5000
  Mean response/sec: 474.83
  Response time (msec):
    min: 1.3
    max: 49.6
    median: 2.3
    p95: 6.9
    p99: 9.3
  Scenario counts:
    0: 5000 (100%)
  Codes:
    200: 5000

My Review

Read here my own state-of-art of GraphQL.

References

GraphQL to be or not to be

1. https://medium.com/@JeffLombardJr/when-and-why-to-use-graphql-24f6bce4839d

2. https://blog.logrocket.com/5-reasons-you-shouldnt-be-using-graphql-61c7846e7ed3/

Specification

1. https://graphql.org/learn/

Server internals

1. https://www.apollographql.com/blog/graphql-explained-5844742f195e

2. https://www.howtographql.com/advanced/1-server/

Real use-cases

1. https://hasura.io/docs/1.0/graphql/manual/index.html

2. https://netflixtechblog.com/graphql-search-indexing-334c92e0d8d5

Aggregations

1. https://hasura.io/docs/1.0/graphql/manual/queries/aggregation-queries.html