# AppLink Fundamentals III: Building with AppLink - Development Flow and Language Choices

DevFeed: [AppLink Fundamentals III: Building with AppLink - Development Flow and Language Choices](<https://devfeed.tech/articles/applink-fundamentals-iii-building-with-applink-development-flow-and-language-choices-26371.md>)

Original publisher: [Read original article](<https://www.heroku.com/blog/applink-fundamentals-development-flow-language-choices/>)

Author: Ken W. Alger

Published: 2025-07-31T15:00:35Z

Content type: tutorial

Language: en

Sources: [Heroku](<https://devfeed.tech/sources/heroku.md>)

Topics: [Heroku](<https://devfeed.tech/topics/heroku.md>), [Development](<https://devfeed.tech/topics/development.md>), [Programming](<https://devfeed.tech/topics/programming.md>), [OpenAPI Specification](<https://devfeed.tech/topics/openapi.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>)

Tags: [apis](<https://devfeed.tech/tags/apis.md>), [applink](<https://devfeed.tech/tags/applink.md>), [development](<https://devfeed.tech/tags/development.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [extensions](<https://devfeed.tech/tags/extensions.md>), [heroku](<https://devfeed.tech/tags/heroku.md>), [integrations](<https://devfeed.tech/tags/integrations.md>), [languages](<https://devfeed.tech/tags/languages.md>), [openapi](<https://devfeed.tech/tags/openapi.md>), [openapi-specification](<https://devfeed.tech/tags/openapi-specification.md>), [programming](<https://devfeed.tech/tags/programming.md>), [salesforce](<https://devfeed.tech/tags/salesforce.md>), [tutorial](<https://devfeed.tech/tags/tutorial.md>)

## AI overview

This final AppLink Fundamentals article explains the development workflow for Salesforce extensions on Heroku, including local testing, managing changes to the OpenAPI specification, and choosing a programming language. It also covers Agentforce integrations and an automotive finance example involving real-time credit assessment, pricing rules, and PDF generation.

## Source excerpt

This blog series has taken you on a journey through the world of AppLink, from its foundational concepts and core components in Heroku AppLink: Extend Salesforce with Any Programming Language, to a deep dive into its key integration patterns in AppLink Fundamentals I: AppLink Integration Patterns - Connecting Salesforce to Heroku Applications, and then we [...] The post AppLink Fundamentals III: Building with AppLink - Development Flow and Language Choices appeared first on Heroku.