Documentation

Heroku Architecture

• How Heroku Works
• Glossary of Heroku Terminology
• The Process Model
• The Procfile
• Configuration and Config Vars
• Regions
• Heroku Generations
• Heroku App Lifecycle

• Compute (Dynos)
• Stacks (operating system images)
• Networking & DNS
• Platform Policies
• Buildpacks
• Platform Principles

Developer Tools

• AI Tools
• Command Line
• Heroku VS Code Extension

Deployment

• Preparing a Codebase for Heroku Deployment

• Deploying with Git
• Deploying with Docker
• Deployment Integrations

Continuous Delivery & Integration (Heroku Flow)

• Releases
• Release Phase
• Pipelines
• Heroku ChatOps (Slack Integration)
• Managing Multiple Environments for an App
• Maintenance Mode
• Flushing a MemCachier Cache on Deployment

• Continuous Integration

Language Support

• Node.js
• Ruby
• Python
• Java
• PHP
• Go
• Scala
• Clojure
• .NET

Databases & Data Management

• Heroku Streaming Data Connectors
• Best Practices for Heroku Streaming Data Connectors
• Connecting Heroku Data Services to MuleSoft
• Data Maintenance CLI Plugin Commands
• Heroku mTLS Plugin CLI Commands

• Heroku Postgres
• Heroku Key-Value Store
• Apache Kafka on Heroku
• Other Data Stores

AI

• Inference Essentials
• Inference API
• Inference Quick Start Guides
• AI Models
• Tool Use
• AI Integrations
• Vector Database

Monitoring & Metrics

• The Heroku Dashboard
• Application Metrics
• Language Runtime Metrics
• Production Check
• Node.js Language Metrics (Public Beta)
• OpenTelemetry Concepts and Heroku
• Heroku Telemetry
• Working with Heroku Telemetry Drains
• Heroku OpenTelemetry Signals and Attributes Reference

• Logging

App Performance

• Worker Dynos, Background Jobs and Queueing
• Scheduled Jobs and Custom Clock Processes
• Using AWS S3 to Store Static Assets and File Uploads
• HTTP Caching
• Optimizing Dyno Usage
• Increasing Application Performance with HTTP Cache Headers
• Compressing HTTP Messages with Gzip
• Getting the Most Out of Memcache
• Using Amazon CloudFront CDN

Add-ons

• Add-ons Overview
• Managing Add-ons
• Sending Email from Your App

• All Add-ons

Collaboration

• Collaborating with Other Developers on Your App
• Getting Started as a Collaborator
• Heroku Teams
• Transferring Apps
• Managing App Permissions
• Add-on Controls for Teams
• Setting Up Your Heroku Team for Identity Federation
• Heroku Team Roles and Allowed Actions

Security

• Heroku Security & Compliance Resources and Features

• App Security
• Identities & Authentication
• Private Spaces
• Compliance

Heroku Enterprise

• Heroku Enterprise Overview

• Enterprise Accounts
• Enterprise Teams

Patterns & Best Practices

• Application Load Testing
• Heroku Postgres Monitoring Best Practices
• Monitoring Heroku Apps
• PgBouncer Configuration
• Running Kafka Connectors on Heroku
• Writing Best Practices For Application Logs
• Optimizing Resource Costs

Extending Heroku

• Webhook Events
• Review Apps

• Platform API
• App Webhooks
• Heroku Labs
• Building Add-ons
• Building CLI Plugins
• Developing Buildpacks
• Dev Center

Accounts & Billing

• Account Management
• Credit Card Processing
• Account Verification
• Usage & Billing

Troubleshooting & Support

• Heroku Status
• Heroku Error Codes
• Error Pages
• Understanding Heroku Postgres Log Statements and Common Errors
• Request Timeout
• Recovering an Offline Application
• R14 - Memory Quota Exceeded in Ruby (MRI)
• Wrong Version of Ruby or Rake in App
• Paid Support
• Support Channels

Integrating with Salesforce

• Heroku AppLink
• Heroku Connect (Salesforce sync)
• Other Salesforce Integrations