Koine::RestClient

Another http client with async

Installation

Add this line to your application's Gemfile:

gem 'koine-rest_client'

And then execute:

$ bundle

Or install it yourself as:

$ gem install koine-rest_client

Usage

# default configuration for every request
request = Koine::RestClient::Request.new(
  base_url: 'http://some.endpoint.com/rest',
  query_params: { auth_token: 'the-auth-token' },
  headers: { 'X-Client' => 'The Collest Client' }
)
client = Koine::RestClient::Client.new(base_request: request)
json_response = client.get('foo/bar')

json_response = client.post(
  'foo/bar',
  campaign_data,
  query_params: { auth_token: 'other_rid' } # other auth_token
)

# or throw on non 200

json_response = client.post(
  'foo/bar',
  campaign_data,
  query_params: { auth_token: nil } # remove auth_token param
)

If you care for the response details:

json_response = client.get('foo/bar') do |response|
  if response.code == 1
    raise 'what, really?'
  end
end

Async calls

data = client.async do |builder|
  builder.get('foo', rid: 'bar') do |response|
  builder.get('bar') do |response|
    Rails.logger.log(response)
  end

  builder.post('baz', { payload: :value })

  # optional. Raise error if ommited
  builder.on_error do |exception|
    # ignore
  end
end

data[0] # foo response
data[1] # bar response
data[2] # baz response

Mocking in rspec

require 'koine/rest_client/rspec_mock_client'

let(:mock_client) { Koine::RestClient::RspecMockClient.new(spec) }

client.mock do |mocker|
  mocker.get('foo').will_return(body: { foo: :bar })
  mocker.put('bar', baz: :foo).will_return(body: { baz: :bar })
  mocker.delete('error').will_return(code: 400, body: { message: :oops })
end

# or with custom response use the block

client.mock do |mocker|
  mocker.get('foo').will_return(body: 'parsed-body') do |response|
    double(code: 200, parsed_response: "the #{response.parsed_response}")
  end
end

Mocking a server

Start the server

./bin/mock_server

request = Koine::RestClient::Request.new(
  base_url: 'http://localhost:4321/something',
  query_params: { rid: 'internal' },
  headers: { 'X-Foo-Bar' => 'foo-bar' }
)
client = Koine::RestClient::Client.new(base_request: request)

client.get('foo') # check the response

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.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/mjacobus/koine-rest_client. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Koine::RestClient project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.