{{- $.Scratch.Add "index" slice -}}
{{- range where .Site.Pages "Type" "not in"  (slice "page" "json") -}}
{{- $.Scratch.Add "index" (dict "uri" .Permalink "title" .Title "abstract" .Summary "content" .Plain "tags" .Params.tags "categories" .Params.tags) -}}
{{- end -}}
{{- $.Scratch.Get "index" | jsonify -}}