48 lines
1.3 KiB
Ruby
48 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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module API
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# Concern for declare pagination params.
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#
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# @example
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# class CustomApiResource < Grape::API::Instance
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# include PaginationParams
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#
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# params do
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# use :pagination
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# end
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# end
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module PaginationParams
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extend ActiveSupport::Concern
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included do
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helpers do
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params :pagination do
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optional :page, type: Integer, default: 1, desc: 'Current page number', documentation: { example: 1 }
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optional :per_page, type: Integer, default: 20,
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desc: 'Number of items per page', except_values: [0], documentation: { example: 20 }
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end
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def verify_pagination_params!
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return if Feature.disabled?(:only_positive_pagination_values)
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page = begin
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Integer(params[:page])
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rescue ArgumentError, TypeError
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nil
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end
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return render_structured_api_error!({ error: 'page does not have a valid value' }, 400) if page&.< 1
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per_page = begin
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Integer(params[:per_page])
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rescue ArgumentError, TypeError
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nil
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end
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return render_structured_api_error!({ error: 'per_page does not have a valid value' }, 400) if per_page&.< 1
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end
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end
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end
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end
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end
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