PipelineStageBuilder

A fluent builder for MongoDB aggregation pipeline stages

new PipelineStageBuilder().$match({ _id: "_id" }).$project({ _id: 1 });

const aggregation = new PipelineStageBuilder()
  .$match({ _id: "_id" })
  .$project({ _id: 1 })
  .build();

const result = await model.aggregate(aggregation);

Migration

Generate string template from array of aggregation pipeline stages. This makes it easier to convert an array of stages into a string template

PipelineStageBuilder.fromArray([
  {
    $match: {
      _id: "_id",
    },
  },
  {
    $project: {
      _id: 1,
    },
  },
]);

Supported aggregation pipeline stages:

• $addFields
• $bucket
• $bucketAuto
• $collStats
• $count
• $densify
• $fill
• $facet
• $geoNear
• $graphLookup
• $group
• $indexStats
• $limit
• $listSessions
• $lookup
• $match
• $merge
• $out
• $planCacheStats
• $project
• $redact
• $replaceRoot
• $replaceWith
• $sample
• $search
• $set
• $setWindowFields
• $skip
• $sort
• $sortByCount
• $unionWith
• $unset
• $unwind