Class: RspecApiDocumentation::Writers::OpenApiWriter

Inherits:
Writer
  • Object
show all
Defined in:
lib/rspec_api_documentation/writers/open_api_writer.rb

Direct Known Subclasses

OpenApiJsonWriter, OpenApiYamlWriter

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#swagger ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 223

def swagger
  @swagger ||= {
    "openapi" => "3.0.0",
    "info" => info,
    "servers" => servers,
    "paths" => {},
    "components" => {
      "securitySchemes" => {
        "bearerAuth" => {
          "type" => "http",
          "scheme" => "bearer"
        },
        "basicAuth" => {
          "type" => "http",
          "scheme" => "basic"
        }
      },
      "schemas" => {}
    }
  }
end

#types ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 206

def types
  @types ||= {
    "unauthorized" => {
      "properties" => {
        "code" => {
          "type" => "string",
          "example" => "invalid_client_credentials"
        },
        "message" => {
          "type" => "string",
          "example" => "Not found or invalid client credentials"
        }
      }
    }
  }
end

Instance Method Details

#get_hash ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 23

def get_hash
  index.examples.each do |rspec_example|
    api = JSONExample.new(rspec_example, configuration).as_json.deep_stringify_keys
    description = api["description"]
    route = api["route"].gsub(%r{\:version\/}, "")
    route = route.gsub(%r{\:([^\/]+)}, '{\1}')
    params = route.scan(%r{\{([^\/]+)\}}).map { |param| { "name" => param[0], "in" => "path", "required" => true, "schema" => { "type" => "string" } } }
    swagger["paths"][route] = swagger["paths"][route] || {}
    responses = {}
    req = api["requests"][0]
    method = req["request_method"].downcase
    result = JSON.parse(req["response_body"]) if req["response_body"]
    properties = {}
    result&.each { |k, v| properties[k] = get_properties(v) }

    responses[req["response_status"]] = {
      "description" => req["response_status_text"],
      "headers" => req["response_headers"].map { |name, _v| [name, { "schema" => { "type" => "string" } }] }.to_h,
      "content" => {
        "application/json" => {
          "schema" => {
            "type" => "object",
            "properties" => properties
          }
        }
      }
    }
    api["parameters"]&.each do |param|
      params.push("name" => param["name"],
                  "in" => "query",
                  "schema" => {
                    "type" => "string"
                  },
                  "description" => param["description"],
                  "required" => param["required"] || false)
    end

    req["request_query_parameters"]&.each do |name, value|
      params.push("name" => name,
                  "in" => "query",
                  "schema" => {
                    "type" => "string"
                  },
                  "example" => value)
    end
    if req["request_content_type"] == "application/x-www-form-urlencoded" && api["requests"][0]["request_body"]
      req["request_body"].scan(/([^\&\=]*)=([^\&]*)/).map do |body|
        params.push("name" => body[0],
                    "in" => "query",
                    "schema" => {
                      "type" => "string"
                    },
                    "example" => CGI.unescape(body[1]))
      end
    end
    swagger["paths"][route][method] = swagger["paths"][route][method] || {}
    swagger["paths"][route][method]["parameters"] = swagger["paths"][route][method]["parameters"] || []

    req["request_headers"]&.each do |name, value|
      if name == "Authorization"
        swagger["paths"][route][method]["security"] = if /Bearer (.*)/.match?(value)
                                                        responses["401"] = {
                                                          "description" => "Unauthorized Access",
                                                          "content" => {
                                                            "application/json" => {
                                                              "schema" => {
                                                                "$ref" => "#/components/schemas/unauthorized"
                                                              }
                                                            }
                                                          }
                                                        }
                                                        [{ "bearerAuth" => [] }]
                                                      else
                                                        [{ "basicAuth" => [] }]
                                                      end
      else
        params.unshift("name" => name,
                       "in" => "header",
                       "schema" => {
                         "type" => "string"
                       },
                       "example" => value,
                       "required" => true)
      end
    end
    params.each do |param|
      has = false
      swagger["paths"][route][method]["parameters"].each_with_index do |p, i|
        if p["name"] == param["name"]
          swagger["paths"][route][method]["parameters"][i]["example"] = swagger["paths"][route][method]["parameters"][i]["example"] || param["example"]
          has = true
        end
      end
      swagger["paths"][route][method]["parameters"].push(param) unless has
    end
    desc = swagger["paths"][route][method]["description"] || ""
    swagger["paths"][route][method]["description"] = desc + "- #{description}, <strong>Needed Parameters:</strong>\n  - #{ params.map{ |p| p['name'] }.join("\n  - ") } \n"
    swagger["paths"][route][method]["responses"] = responses
  end
  swagger["components"]["schemas"] = types

  swagger
end

#get_properties(v) ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 127

def get_properties(v)
  case v.class.name
  when "Hash"
    props = v.map { |key, value| [key, get_properties(value)] }.to_h
    x = {
      "type" => "object",
      "properties" => props
    }
    if v["type"]
      type = v["type"].tr("\/", "_")
      types[type] = x unless types.key?(type)
      if types.key?(type)
        types[type]["properties"] = hash_deep_assign(types[type]["properties"], x["properties"])
      else
        types[type] = x
      end
      return { "$ref" => "#/components/schemas/#{type}" }
    end
    x
  when "Array"
    {
      "type" => "array",
      "items" => get_properties(v[0])
    }
  when "TrueClass", "FalseClass"
    {
      "type" => "boolean",
      "example" => v
    }
  when "NilClass"
    {
      "type" => "integer",
      "nullable" => true
    }
  when "Integer", "Float"
    {
      "type" => "number",
      "example" => v
    }
  else
    {
      "type" => v.class.name.downcase,
      "example" => v
    }
  end
end

#hash_deep_assign(target, other) ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 174

def hash_deep_assign(target, other)
  return target unless target && other
  other.each do |key, value|
    target[key] = if target.key?(key) && other[key].is_a?(Hash)
                    hash_deep_assign(target[key], other[key])
                  elsif target.key?(key) && target[key].is_a?(Array) && other[key].is_a?(Array)
                    target[key].push(*other[key]).uniq
                  elsif key == "$ref"
                    if other["$ref"] && target["$ref"] && target["$ref"] != other["$ref"]
                      target = {
                        "oneOf" => [
                          { "$ref" => target["$ref"] },
                          { "$ref" => other["$ref"] }
                        ]
                      }
                    elsif target.key?("oneOf")
                      target["oneOf"].push("$ref" => other["$ref"]).uniq
                    else
                      target["$ref"] || other["$ref"]
                    end
                  elsif target.key?(key)
                    target[key] || other[key]
                  else
                    value
                  end
  end
  target = { "oneOf" => target["oneOf"] } if target.key?("oneOf")
  target = { "$ref" => target["$ref"] } if target.key?("$ref")
  target = get_properties(target["example"]) if target["example"] && target.key?("nullable")
  target
end

#info ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 245

def info
  RspecApiDocumentation.configuration.open_api["host"] || {
    "version" => "1.0.0",
    "title" => "Open API",
    "description" => "Open API",
    "contact" => {
      "name" => "OpenAPI"
    }
  }
end

#servers ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 256

def servers
  RspecApiDocumentation.configuration.open_api["server"] || [
    {
      "url" => "http://localhost:{port}",
      "description" => "Development server",
      "variables" => {
        "port" => {
          "default" => "3000"
        }
      }
    }
  ]
end

#write ⇒ Object 



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# File 'lib/rspec_api_documentation/writers/open_api_writer.rb', line 13

def write
  File.open(configuration.docs_dir.join("open_api.json"), "w") do |f|
    f.write JSON.pretty_generate(get_hash)
  end

  File.open(configuration.docs_dir.join("open_api.yaml"), "w") do |f|
    f.write get_hash.to_yaml
  end
end