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Examples: Using the Eventing Service

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      This page contains examples of how to use the Eventing Service with the Couchbase Web Console.

      Step-by-Step Examples

      Detailed Examples

      The following tutorial-like guides have detailed start-to-finish instructions and are ideal for new users to learn the basics of the Eventing Service.

      Data Enrichment

      Cascade Delete

      Document Expiry

      Delete v Expiry

      Document Archival

      Cancel or Overwrite Timer

      Recurring Timer

      External REST via cURL GET

      Risk Assessment

      Scriptlets

      Basic Accessor Eventing Functions

      The following scriptlets are examples of standadlone Eventing Functions.

      basicBucketOps

      basicCurlGet

      basicCurlPost

      simpleTimer

      cascadeKvDeleteWithDoc

      redactSharedData

      simpleFlatten

      fixEmailDomains

      keepLastN

      docControlledSelfExpiry

      shippingNotifier

      convertBucketToCollections

      Basic SQL++ Eventing Functions

      The following scriptlets demonstrate how to use SQL++ or the Query Service with an Eventing Function.

      basicN1qlSelectStmt

      basicN1qlPreparedSelectStmt

      Generic Manipulation Eventing Functions

      The following scriptlets are examples of advanced use cases that focus on mutating a document without knowing that document’s schema.

      dateToEpochConversion

      deepCloneAndModify

      removeObjectStubs

      removeNullsAndEmptys

      genericRename

      genericFlatten

      convertXMLtoJSON

      convertAdvXMLtoJSON

      Advanced Accessor Eventing Functions

      The following scriptlets demonstrate how to use Advanced Keyspace Accessors, which allow you to:

      • Use CAS

      • Set expiry (TTL) dates

      • Use distributed atomic counters to increment and decrement counts

      advancedGetOp

      advancedGetOpWithCache

      advancedInsertOp

      advancedUpsertOp

      advancedReplaceOp

      advancedDeleteOp

      advancedIncrementOp

      advancedDecrementOp

      advancedTouchOp

      advancedKeepLastN

      advancedDocControlledSelfExpiry

      multiCollectionEventing

      advancedSelfRecursion

      advancedMutateInField

      advancedMutateInArray

      advancedLookupInField

      Binary Document Support

      The following scriptlets demonstrate support for binary documents in Eventing.

      Your Eventing Function must have a language compatibility setting of Couchbase Server version 6.6.2 or above to pass binary documents in its OnUpdate(doc,meta) handler.

      basicBinaryKV

      advancedBinaryKV

      Performance Eventing Functions

      The following scriptlets are examples of performance-oriented or benchmark Eventing Functions.

      fasterToLocalString