1 files changed, 37 insertions, 0 deletions
diff --git a/app/graphql/resolvers/blobs_resolver.rb b/app/graphql/resolvers/blobs_resolver.rb
new file mode 100644
index 00000000000..d006769bd4b
--- /dev/null
+++ b/app/graphql/resolvers/blobs_resolver.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module Resolvers
+  class BlobsResolver < BaseResolver
+    include Gitlab::Graphql::Authorize::AuthorizeResource
+
+    type Types::Tree::BlobType.connection_type, null: true
+    authorize :download_code
+    calls_gitaly!
+
+    alias_method :repository, :object
+
+    argument :paths, [GraphQL::STRING_TYPE],
+             required: true,
+             description: 'Array of desired blob paths.'
+    argument :ref, GraphQL::STRING_TYPE,
+             required: false,
+             default_value: nil,
+             description: 'The commit ref to get the blobs from. Default value is HEAD.'
+
+    # We fetch blobs from Gitaly efficiently but it still scales O(N) with the
+    # number of paths being fetched, so apply a scaling limit to that.
+    def self.resolver_complexity(args, child_complexity:)
+      super + (args[:paths] || []).size
+    end
+
+    def resolve(paths:, ref:)
+      authorize!(repository.container)
+
+      return [] if repository.empty?
+
+      ref ||= repository.root_ref
+
+      repository.blobs_at(paths.map { |path| [ref, path] })
+    end
+  end
+end