Cloudant blog

Changes Follower

Following a changes feed with Cloudant SDKs

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Provisioning Cloudant With Terraform

How to deploy a Cloudant instance using Terraform.

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MapReduce Compound Keys

Using arrays as keys for complex grouped aggregation.

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Search Syntax

A primer on Cloudant Search query syntax.

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HTTP 200, 201 & 202

What does success mean in Cloudant?

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HTTP 409

When is a conflict a conflict?

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HTTP 429

Rate limiting explained

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Taxi Service

How to build a taxi service with Cloudant

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Replication Efficiency Improvements

How to make replication go faster

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CouchApp function deprecation

Show/List/Rewrite/Update functions are deprecated

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Simple Geospatial Queries

Using Cloudant Search for simple geo searches

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Indexing with the Cloudant Dashboard

Creating and using indexes using the Cloudant Dashboard

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Getting Cloudant Support

Raising a support ticket in the IBM Cloud

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Using the Changes Feed

Best practice and pitfalls

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Migrating from TXE

Switching from TXE to Standard

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Projection

Storing data in an index for faster retrieval.

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CouchApps No Longer Work

A new HTTP header makes CouchApps inoperable.

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Code Engine & Cloudant

Running serverless services with IBM Cloud Code Engine

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Cloudant SDK Transition

Introducing Cloudant's new SDKS and changes to supported SDKs

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Removing Tombstones

Expunging deleted documents from Cloudant or CouchDB databases

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GitHub Webhooks and Cloud Functions

Syncing GitHub JSON files to Cloudant using Webhooks

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Repairing a database with conflicts

Three ways to eliminate conflicts from a Cloudant database

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Migrating a Cloudant Account

Using replication to copy data from one account to another

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HAProxy as a reverse proxy

Using two Cloudant instances in active-passive mode.

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Automated Daily Backups

Using serverless functions to backup to Object Storage

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Compliance automation via Auditree

Auditree - open source compliance automation for the cloud

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JSON Schema Validation

Validating incoming JSON schemas with VDU functions

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How to recover a deleted document

How to recover a document in Cloudant that has been deleted or overwritten

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Selective restoration from backup

Only restore the Cloudant documents you need

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Automatic Cross-region Failover

Using CIS Edge functions switch between Cloudant services

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Building a Store Finder

Sorting documents be distance from a point

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Optimising Cloudant Queries

Making the best index to match your query

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Fast Data Transfer

Copying data faster than replication

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Filtered Replication

Replicating while leaving behind deletions, design docs or anything you like.

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Timing HTTP Requests

Detailed HTTP timings for your Node.js application

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Best & Worst Practice

Advice for new users

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Case-sensitivity in queries

Making Cloudant query, search and MapReduce case sensitive or case-insensitive

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Improve and then improve some more

The journey our team took to move a modern CI using Jenkins Pipeline.

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Paginating _all_docs

Paging through all_docs and views

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Logging with LogDNA

Analyse your IBM Cloudant logs with LogDNA

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Design Docs For Life

All about Cloudant Design Documents.

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Fuzzy search using Double Metaphone

Using the Double Metaphone algorithm to find words that sound alike.

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Replicating from a Query

Taking a subset of data offline and writing your own replicator.

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Paging with Bookmarks

Using bookmarks to page through results sets.

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Partitioned Databases and Node.js

Using Partitioned Databases with the Node.js library.

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Scheduled Cloudant Backups

Backing up your data periodically using Kubernetes.

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Optimal Cloudant Indexing

Getting away with fewer indexes

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Analysing Backups with SQL Query

Exploring your Cloudant backups using IBM SQL Query

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Time-series Data Storage

Storing and querying time-series data in Cloudant.

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Building a CRM System

Creating a customer relations system with a partitioned Cloudant database.

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Partitioned Databases - Sizing

Calculating the size of each partition in a partitioned database.

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Partitioned Databases - Data Migration

Copying data from a standard database to a partitioned database.

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Partitioned Databases - Data Design

Designing your data for a partitioned database, including indexing and querying

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Partitioned Databases - Introduction

Organise data into partitions for a speed boost and cost savings.

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Natural Language Classification

Using AI to classify reviews as positive or negative.

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Count Distinct

Counting distinct values using MapReduce indexes

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Fuzzy search using soundex

Using the soundex algorithm to find words that sound alike.

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Caching with Nginx

Caching Cloudant reads for faster performance

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The Data Warehouse

Exporting Cloudant data to a warehouse

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Stale, update and stable

Triggering indexing and permitting stale queries

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Search Analyzers

Processing data prior to indexing

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Generating sample data

Creating realistic JSON data in bulk

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Time-sortable _ids

Making _ids unique and time-sortable

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Searching Jekyll Sites

Adding seach facility to a static website

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Cloudant Fundamentals 10/10

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Conflicts

How to deal with conflicts in Cloudant documents

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Cloudant Fundamentals 9/10

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Modelling with TypeScript

Making TypeScript objects to store in Cloudant

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Cloudant Fundamentals 8/10

Querying in Node.js

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Cloudant Fundamentals 7/10

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Optimising Cloudant for Serverless

Reusing your connection to Cloudant

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Cloudant Fundamentals 6/10

Programmatic CRUD

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Cloudant Fundamentals 5/10

Using the Bulk API

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Emoji in Cloudant

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Cloudant Fundamentals 4/10

Using the API with curl

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Date formats

Storing date & time in JSON

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Cloudant Fundamentals 3/10

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Cloudant Fundamentals 2/10

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Cloudant Fundamentals 1/10

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couchreplicate

Managing replication from the command-line

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Local documents

When you need to leave a bit of config behind

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Partial Indexes

Filter data before it's indexed

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Detaching attachments

Using Cloud Functions and Object Storage

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Using your own domain

Using Cloud Functions as a proxy

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Elasticsearch hybrid

Moving Cloudant data to ES

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Tracking cryptocurrencies

Using Cloud Functions and Cloudant

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Replication topologies

Designing for Cloudant failover

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Cloudant Envoy

Serverless Edition

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Custom Indexers

With Cloud Functions and Redis

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Custom Replication

With Cloud Functions

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Piecemeal, Bulk or Batch

Cloudant write modes discussed

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Querying Cloudant with SQL

Converting SQL to Cloudant Query JSON

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Choosing a Cloudant library

Which level of abstraction is right for you?

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couchdiff

Compare two databases on the command line

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PouchDB

The Swiss Army Knife of databases

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Moving data from DocumentDB

Using the documentdbexport npm module

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Moving data from DynamoDB

Using the dynamodbexport npm module

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Build a serverless web app

Using Cloud Functions & Cloudant

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The Revision Tree

How Cloudant stores revisions in a tree

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Caching HTTP requests

With cachemachine and redis

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Chrome Extensions

With PouchDB & Cloudant

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couchbackup

For command-line backup

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Understanding Indexing

Understanding how indexes work in a cluster

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Command-line tools

Backup, shell, migration and more

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Understanding Read/Write

Understanding how reads/writes work in a cluster

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Slack to Cloudant

With Slack slash commands

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Introduction to Conflicts - 3/3

Avoiding document conflicts through design.

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Introduction to Conflicts - 2/3

Detecting and resolving Cloudant document conflicts.

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Introduction to Conflicts - 1/3

Cloudant document conflicts - what are they?

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MapReduce

From the basics to the actually useful

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