> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt # Method name: data.items.pipelineBuilder() # Method Link: https://dev.wix.com/docs/sdk/business-solutions/data/items/pipeline-builder.md # Method Description: Builds an aggregation pipeline for use with [`aggregatePipeline()`](https://dev.wix.com/docs/sdk/backend-modules/data/items/aggregate-pipeline.md). Configure the pipeline by calling `pipelineBuilder()` and chaining [`PipelineBuilder`](https://dev.wix.com/docs/sdk/backend-modules/data/items/pipeline-builder/introduction.md) methods. Then, specify the pipeline as the `pipeline` parameter when calling the [`aggregatePipeline()`](https://dev.wix.com/docs/sdk/backend-modules/data/items/aggregate-pipeline.md) method. > **Note**: You can only build an aggregation pipeline for collections [created in the CMS](https://support.wix.com/en/article/cms-formerly-content-manager-creating-a-collection) or with the [Data Collections API](https://dev.wix.com/docs/sdk/backend-modules/data/collections/introduction.md). They cannot be used on [Wix app collections](https://support.wix.com/en/article/cms-formerly-content-manager-working-with-wix-app-collections) or [external collections](https://dev.wix.com/docs/develop-websites/articles/databases/external-databases/overview/integrating-external-databases-with-your-wix-site.md). # Method Permissions: # Method Permissions Scopes IDs: undefined