Quick Start
VSCode OpenAPI spec generator — Quick Start
Generate client or server code from OpenAPI specs without leaving VS Code. <br/> This extension opens a dedicated OpenAPI generator UI inside VS Code, reads .yaml / .yml / .json specs, and can extract generated code directly into your workspace.
Prerequisites
| Requirement | Details |
|---|---|
| VS Code | 1.101 or newer |
| Internet access | Required for login, license validation, and calling the remote OpenAPI generator service |
| OpenAPI spec | A valid .yaml, .yml, or .json OpenAPI file |
Install
Install OpenEdge ABL - OpenAPI from the VS Code Marketplace or from the .vsix file.
Configure project settings
The extension stores generation settings in VS Code under ai4you-openapi.projectGenerationSettings.
You usually do not need to edit this manually because the UI saves and reloads these settings for you. If needed, you can define them in .vscode/settings.json.
Workspace-folder scope example:
{
"ai4you-openapi.projectGenerationSettings": {
"_globalWorkspacePath": "C:/work/my-project",
"_globalAblApiEnvironment": "2026q1",
"excludeFiles": ".git,.gitignore"
}
}Common values used by the extension:
| Setting | Purpose |
|---|---|
workspacePath / _globalWorkspacePath | Target path where generated code should be extracted |
excludeFiles | Comma-separated file patterns to avoid overwriting during extraction |
ablApiEnvironment / _globalAblApiEnvironment | Selects which OpenAPI generator environment to use |
licenseData | Stored license information used after validation |
Open the OpenAPI generator
Three quick ways to launch it:
- Open the command palette.
- Run
Launch OpenAPI generator 😎 (vscode sync). - Use the OpenAPI generator webview that opens inside VS Code.
On first use, the extension may prompt you to register its MCP server for AI-assisted workflows.
Generate code from a spec
Typical flow:
- Launch the OpenAPI generator.
- Select an OpenAPI spec file (
.yaml,.yml, or.json). - Select whether you want a client or server generator.
- Choose an available language and generator version.
- Change configuration options if needed.
- Choose whether to extract the generated ZIP into your project path.
- Generate the code.
When extracting into a folder, the extension respects the configured excludeFiles list for existing files.
What you can do
- Open an interactive OpenAPI generator UI inside VS Code.
- Select local OpenAPI specification files from your workspace or disk.
- Generate client or server code for supported languages.
- Extract generated ZIP output directly into your project folder.
- Save and reload per-project generation settings.
- Switch between configured generator environments.
- Use MCP integration for AI workflows that depend on the OpenAPI generator.