TemplatesBasics

Gemini Structured Output

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Problems solved

Technical challenges this implementation handles out of the box.
  • Generate schema-validated objects with Gemini via generateObject
  • Return complete structured JSON in one response
  • Demonstrate Google structured output through the AI SDK

Use cases

Products and workflows this pattern is designed to support.
  • Gemini structured data extractors
  • Schema-backed API response demos
  • Classification and tagging tools
  • AI SDK generateObject onboarding with Gemini

Setup

Requirements, wiring steps, and what this pattern adds to your project.

Getting started

Pick how you want to pull this pattern in. Then wire env vars and routes the same way.

  1. 1

    Download → Next.js app

    Use Download → Next.js app in the preview toolbar. You get a zip scaffold (Pro downloads rewrite preview `/view/.../api/*` paths to `/api/*` automatically).

  2. 2

    Extract the zip and install dependencies

    Unzip the archive, then run `pnpm install` (or npm / yarn) in the project folder.

  3. 3

    Fill .env.local

    The download includes .env.local placeholders when needed. Add real values for: GOOGLE_GENERATIVE_AI_API_KEY.

  4. 4

    Customize the agent and tool files

    Adapt prompts, tools, and stop conditions in the generated project for your product.

  5. 5

    Run the app and open the pattern route

    Run `pnpm dev`, open the setup/checklist page if present, then navigate to the generated pattern route and verify responses.

Environment variables

  • GOOGLE_GENERATIVE_AI_API_KEYGet key

Capabilities

AI SDK APIs

generateTextOutput.object

Providers

Gemini

Files added

5 files
  • app/page.tsx
  • app/layout.tsx
  • components/basic-generate-object-form.tsx
  • app/api/generate-object/route.ts
  • app/api/generate-object/schema.ts

Dependencies

12 total

npm packages

5
AISDKlucide-reactNext.jsReactZod

Shadcn IconRegistry components

7
input-groupseparatoremptyitemalertscroll-areatooltip

Critical files

  • generate-object/route.ts

    API route implementing structured object generation using Google Gemini with AI SDK generateText and Output.object pattern.

  • generate-object/schema.ts

    Zod schema defining the structured output shape used by the generate-object route for validated AI output.

Requirements

Complexity
Beginner