Transform API
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What is Transform API?
The Transform API in Elasticsearch provides a way to summarize and transform data from one or more Elasticsearch indices into a new index. It essentially automates the process of creating aggregated views of your data, allowing you to perform tasks like data reduction, feature engineering, and creating summary indices for faster analysis and visualization. This API enables you to create new indices that contain pre-computed aggregations and transformations of your source data.
Free resources to learn Transform API
- Official docsCreate a transform
- Official docsGet transforms
- ArticleElasticsearch Transform APIs
More in stage 7: Search Analyzer
- Search Analyzer
- Doc values
- fielddata
- The Inverted Index
- The Analyze API
- Standard Analyzer
- Custom Analyzers
- Value Count
- Avg / Sum / Min / Max
- Cardinality
- Stats / Extended Stats
- Terms
- Range / Date Range
- Histogram
- Filter Aggregations
- Pivot
- Latest
- Nested Aggregations
- Pipeline Aggregations
- Understanding Similarity
- BM25 algorithm
- CAT API
- Segment Merging
- Cluster Monitoring
- Cross-cluster Replication
- Autoscaling
- Boosting Queries
- Function Score Query
- Match Phrase Query
- Synonyms Graph
- ILM
- Rollover Policies
- Data Tiers
- Vector Search
- Semantic Search
- Hybrid Search
- Snapshots & restore
- SLM
- Authentication
- Roles & Users
- API Keys
Transform API: common questions
Can I learn Transform API in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Transform API in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Transform API tutorial for beginners?
It is lesson 89 of 113 in the free Elasticsearch roadmap, in stage 7, Search Analyzer. If you are new to Elasticsearch, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.