Modernizing legacy applications can be challenging, especially when upgrading runtime versions, containerizing workloads, and addressing technical debt. With IBM Bob, developers can accelerate this process using AI-assisted workflows that combine code understanding, analysis, and automated implementation.
Start by downloading IBM Bob for free from the official page: Download IBM Bob.
To begin the modernization journey, switch IBM Bob to Agent Mode and create a Dockerfile for the application. Bob can help generate the containerized environment, identify dependencies, and prepare the project for modern deployment workflows.
Next, verify that the legacy application builds successfully. During this phase, IBM Bob can analyze build failures and provide recommendations. For example, if the Dockerfile uses npm ci but the project does not contain a package-lock.json file, Bob will highlight the issue and suggest the appropriate fix so the build can proceed.
Before making changes to the codebase, switch to Ask Mode to safely explore the application. Ask Mode is read-only, allowing you to inspect files, understand architecture, review dependencies, and learn how different components interact without modifying source code.
Once you're familiar with the project, return to Agent Mode and begin the modernization process. IBM Bob can assist in upgrading a Node.js Express API from Node.js 16 to Node.js 22, updating dependencies, resolving compatibility issues, improving configurations, and validating the application throughout the migration.
Whether you're modernizing a small service or a larger enterprise application, IBM Bob provides guided AI assistance to help reduce effort and increase confidence throughout the upgrade process.
📖 Learn from the tutorial: Modernize a Node.js Application with IBM Bob
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