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https://github.com/envek/graphql-flamegraph

Collects data for visualizing performance of your GraphQL request resolving for applications built with GraphQL-Ruby
https://github.com/envek/graphql-flamegraph

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Collects data for visualizing performance of your GraphQL request resolving for applications built with GraphQL-Ruby

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README

          

# GraphQL::Flamegraph

Collects data for visualizing performance of your GraphQL request resolving for applications built with [GraphQL-Ruby].

## Installation

1. Add this line to your application's Gemfile:

```ruby
gem 'graphql-flamegraph'
```

And then execute:

```shell script
$ bundle install
```

2. Plug it into your GraphQL schema:

```ruby
class YourAppSchema < GraphQL::Schema
use GraphQL::Flamegraph, path: Rails.root.join("tmp")
end
```

## Usage

To generate flamegraph for some query, set `flamegraph` option to `true` in your context.

```ruby
result = YourAppSchema.execute(
query: "query { products { id title quantity … } }",
context: { flamegraph: true },
variables: {},
)
```

Path to the generated file will be printed to standard output like this:

```
Check your flamegraph at /tmp/graphql-flamegraph-20200320-90923-px3494.txt
Open it in https://www.speedscope.app/ or in local speedscope:

speedscope /tmp/graphql-flamegraph-20200320-90923-px3494.txt

```

Also you will be able to access collected data via `result.context[:flamegraph].to_s`

You can view it with your favorite flamegraph visualizer.

## Development

After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).

## Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/Envek/graphql-flamegraph.

## License

The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

[GraphQL-Ruby]: https://graphql-ruby.org/ "Ruby implementation of GraphQL"