diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb
index 1716c8a7f61..a2e8c10857d 100644
--- a/app/controllers/projects/blob_controller.rb
+++ b/app/controllers/projects/blob_controller.rb
@@ -37,33 +37,11 @@ class Projects::BlobController < Projects::ApplicationController
 
     respond_to do |format|
       format.html do
-        environment_params = @repository.branch_exists?(@ref) ? { ref: @ref } : { commit: @commit }
-        @environment = EnvironmentsFinder.new(@project, current_user, environment_params).execute.last
-        @last_commit = @repository.last_commit_for_path(@commit.id, @blob.path)
-
-        render 'show'
+        show_html
       end
 
       format.json do
-        json = blob_json(@blob)
-        return render_404 unless json
-
-        render json: json.merge(
-          path: blob.path,
-          name: blob.name,
-          extension: blob.extension,
-          size: blob.raw_size,
-          mime_type: blob.mime_type,
-          binary: blob.raw_binary?,
-          simple_viewer: blob.simple_viewer&.class&.partial_name,
-          rich_viewer: blob.rich_viewer&.class&.partial_name,
-          show_viewer_switcher: !!blob.show_viewer_switcher?,
-          render_error: blob.simple_viewer&.render_error || blob.rich_viewer&.render_error,
-          raw_path: project_raw_path(project, @id),
-          blame_path: project_blame_path(project, @id),
-          commits_path: project_commits_path(project, @id),
-          permalink: project_blob_path(project, File.join(@commit.id, @path))
-        )
+        show_json
       end
     end
   end
@@ -207,4 +185,34 @@ class Projects::BlobController < Projects::ApplicationController
     @last_commit_sha = Gitlab::Git::Commit
       .last_for_path(@repository, @ref, @path).sha
   end
+
+  def show_html
+    environment_params = @repository.branch_exists?(@ref) ? { ref: @ref } : { commit: @commit }
+    @environment = EnvironmentsFinder.new(@project, current_user, environment_params).execute.last
+    @last_commit = @repository.last_commit_for_path(@commit.id, @blob.path)
+
+    render 'show'
+  end
+
+  def show_json
+    json = blob_json(@blob)
+    return render_404 unless json
+
+    render json: json.merge(
+      path: blob.path,
+      name: blob.name,
+      extension: blob.extension,
+      size: blob.raw_size,
+      mime_type: blob.mime_type,
+      binary: blob.raw_binary?,
+      simple_viewer: blob.simple_viewer&.class&.partial_name,
+      rich_viewer: blob.rich_viewer&.class&.partial_name,
+      show_viewer_switcher: !!blob.show_viewer_switcher?,
+      render_error: blob.simple_viewer&.render_error || blob.rich_viewer&.render_error,
+      raw_path: project_raw_path(project, @id),
+      blame_path: project_blame_path(project, @id),
+      commits_path: project_commits_path(project, @id),
+      permalink: project_blob_path(project, File.join(@commit.id, @path))
+    )
+  end
 end