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added simple openapi codegen docs
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‎fern/docs.yml‎

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path: voice-fallback-plan.mdx
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- page: OpenAI Realtime
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path: openai-realtime.mdx
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- page: OpenAPI Code Generation
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path: openapi-codegen.mdx
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- section: Glossary
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contents:
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- page: Definitions

‎fern/openapi-codegen.mdx‎

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---
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title: OpenAPI Code Generation
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slug: openapi-codegen
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---
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## OpenAPI Introduction and Benefits
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OpenAPI, a specification for describing RESTful APIs, provides numerous benefits to development teams and organizations:
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Enhanced Collaboration and Communication: OpenAPI acts as a single source of truth, fostering alignment and clear communication between front-end and back-end developers, as well as other stakeholders. By defining a clear contract for the API, it minimizes misunderstandings and ensures everyone is working towards the same goal.
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Clear and Comprehensive Documentation: OpenAPI specifications serve as structured and interactive documentation that is easily understandable by both humans and machines. This documentation can be automatically generated and kept up-to-date, reducing the manual effort required to document APIs.
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Automation and Efficiency: OpenAPI enables the automation of various tasks, such as generating client and server code, API testing, and mocking. This automation saves significant development time and effort, allowing developers to focus on core business logic.
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Language and Platform Independence: OpenAPI is language-agnostic, meaning it can be used with any programming language or platform. This promotes flexibility and interoperability, allowing developers to choose the tools and technologies that best suit their needs.
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Cost Reduction and Optimization: By streamlining workflows, promoting code reusability, and reducing manual effort, OpenAPI can lead to significant cost savings for organizations.
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Strong Community and Ecosystem: OpenAPI is supported by a large and active community of developers, as well as a wide range of tools and resources. This makes it easy to find help and support when needed, and ensures that the specification continues to evolve and improve.
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Generating Code from OpenAPI Specifications
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To generate code from an OpenAPI specification, follow these steps:
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Choose a Code Generation Tool: Select a suitable tool like Swagger Codegen, OpenAPI Generator, or an integrated development environment (IDE) with OpenAPI support, such as IntelliJ IDEA.
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Prepare Your OpenAPI Specification: Ensure your OpenAPI specification, written in either YAML or JSON format, is complete, accurate, and adheres to the OpenAPI standard. Tools like Swagger Editor can help you validate and edit your specification.
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Execute the Code Generation Process:
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For Swagger Codegen or OpenAPI Generator, use the command-line interface (CLI) or integrate them into your build process using plugins like Maven or Gradle. Provide the necessary flags to specify the input specification file, desired programming language, and output directory.
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For IntelliJ IDEA, open the specification file, click the relevant gutter icon, and select the option to generate code from the OpenAPI specification.
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Customize the Generated Code: The generated code will often be boilerplate code. Refine and adapt it to align with your specific business requirements and logic.
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Cloud Platform Support for OpenAPI
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Major cloud platforms like AWS, Azure, and others offer robust tools and services for working with OpenAPI specifications:
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AWS:
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- **Amazon API Gateway**: Supports importing OpenAPI definitions to create, deploy, and manage APIs at scale.
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- **AWS Cloud Development Kit (CDK)**: Integrates OpenAPI specifications with serverless technologies like AWS Lambda, simplifying the deployment of APIs as serverless functions.
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- **SwaggerHub**: Offers integration with AWS services for seamless API design, documentation, and deployment.
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- **Azure**:
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- **Azure API Management**: Allows importing OpenAPI specifications through various methods, including the Azure portal, CLI, and PowerShell, to manage the entire API lifecycle.
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- **Azure AI Agent Service**: Supports OpenAPI tools for building and deploying scalable API integrations.
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- **SwaggerHub**: Synchronizes with Azure API Management for streamlined API design and deployment.
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- **SwaggerHub**:
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- **Centralized API Management**: Provides a platform for designing, documenting, testing, and deploying APIs.
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- **Cloud Integrations**: Integrates with various cloud providers, including AWS, Azure, Apigee, and IBM API Connect, for simplified API management and deployment across different cloud environments.
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**Example:**
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```
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[Identity]
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You are a helpful and knowledgeable virtual assistant for a travel booking platform.
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[Style]
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- Be informative and comprehensive.
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- Maintain a professional and polite tone.
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- Be concise, as you are currently operating as a Voice Conversation.
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[Response Guideline]
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- Present dates in a clear format (e.g., January 15, 2024).
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- Offer up to three travel options based on user preferences.
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[Task]
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1. Greet the user and inquire about their desired travel destination.
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2. Ask about travel dates and preferences (e.g., budget, interests).
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3. Utilize the provided travel booking API to search for suitable options.
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4. Present the top three options to the user, highlighting key features.
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```
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### Task Breakdown: Step-by-Step Instructions
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For complex interactions, breaking down the task into a sequence of steps enhances the agent's understanding and ensures a structured conversation flow. Incorporate conditional logic to guide the agent's responses based on user input.
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Example:
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```
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[Task]
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1. Welcome the user to the technical support service.
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2. Inquire about the nature of the technical issue.
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3. If the issue is related to software, ask about the specific software and problem details.
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4. If the issue is hardware-related, gather information about the device and symptoms.
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5. Based on the collected information, provide troubleshooting steps or escalate to a human technician if necessary.
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```
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### Controlling Response Timing
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To prevent the agent from rushing through the conversation, explicitly indicate when to wait for the user's response before proceeding to the next step.
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```
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[Task]
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1. Inform the user about the purpose of the call.
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2. Ask for the user's name and account information.
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<wait for user response>
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3. Inquire about the reason for the call and offer assistance options....
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```
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### Explicit Tool Integration
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Specify when and how the agent should utilize external tools or APIs. Reference the tools by their designated names and describe their functions to ensure accurate invocation.
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Example:
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```
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[openapi-codegeneration examples]
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1. Integrate the OpenAPI specification with Swagger Codegen to generate client and server code.
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a.
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2. Utilize the AWS Cloud Development Kit (CDK) to deploy serverless APIs based on the OpenAPI definition.
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3. Import the OpenAPI specification into Azure API Management for centralized API governance and deployment.
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```
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- **
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## Additional resources
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Check out these additional resources to learn more about Open API:
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1. [OpenAPI | IntelliJ IDEA Documentation - JetBrains](https://www.jetbrains.com/help/idea/openapi.html)
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2. [Generate server-side code from your OpenAPI 3.0 definition](https://learning.postman.com/docs/designing-and-developing-your-api/developing-an-api/generating-server-code/)
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3. [How to generate OpenAPI v3 specification from Go source code?](https://stackoverflow.com/questions/66171424/how-to-generate-openapi-v3-specification-from-go-source-code)
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4. [Generate Server Code Using OpenAPI Generator](https://mydeveloperplanet.com/2022/02/08/generate-server-code-using-openapi-generator/)
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5. [What do you think about generating OpenAPI specs from code? : r/java](https://www.reddit.com/r/java/comments/ykoz63/what_do_you_think_about_generating_openapi_specs/)
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6. [Usage | OpenAPI Generator](https://openapi-generator.tech/docs/usage/)
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7. [Code-first: How to Generate OpenAPI from Code - Bump.sh](https://bump.sh/blog/code-first-openapi)
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8. [What Is an Open API & Why Have One? Blog - Aircall](https://aircall.io/blog/tech/what-open-api-why-have-one/)
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9. [What Is OpenAPI Specification? Benefits + Practical Example | Adeva](https://adevait.com/java/openapi-specification-with-spring-boot)
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10. [What Is Open API? Pros, Cons, and Examples - APILayer Blog](https://blog.apilayer.com/what-is-open-api-pros-cons-and-examples/)
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11. [What is an Open API? Benefits, Challenges, and Strategic Insights](https://www.moesif.com/blog/technical/api-development/What-Is-Open-API/)
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12. [What is Open API? Advantages, Disadvantages & Examples](https://document360.com/blog/open-api/)
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13. [How Businesses Can Benefit from OpenAPI Specification - AltexSoft](https://www.altexsoft.com/blog/openapi-specification/)
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14. [What is the point of using OpenAPI at all? [closed] - Stack Overflow](https://stackoverflow.com/questions/60245983/what-is-the-point-of-using-openapi-at-all)
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15. [Create RESTful APIs on AWS with OpenAPI Specification (With No ...](https://aws.amazon.com/blogs/opensource/create-restful-apis-on-aws-with-openapi-specification-with-no-coding/)
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16. [How to use Azure AI Agent service with OpenAPI Specified Tools](https://learn.microsoft.com/en-us/azure/ai-services/agents/how-to/tools/openapi-spec)
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17. [Deploy and manage OpenAPI/Swagger RESTful APIs with the AWS ...](https://aws.amazon.com/blogs/devops/deploy-and-manage-openapi-swagger-restful-apis-with-the-aws-cloud-development-kit/)
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18. [API Management - API Tools, Services, and Best Practices - AWS](https://aws.amazon.com/api-gateway/api-management/?pg=wianapi&cta=apimgtprcs)
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19. [Import API using OpenAPI | Azure API Management Hands on Lab](https://azure.github.io/apim-lab/apim-lab/3-adding-apis/adding-apis-3-2-open-api.html)
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20. [Integrations | SwaggerHub](https://swagger.io/tools/swaggerhub/integrations/)
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21. [Build APIs using OpenAPI, the AWS CDK and AWS Solutions ...](https://aws.amazon.com/blogs/devops/build-apis-using-openapi-the-aws-cdk-and-aws-solutions-constructs/)
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22. [Import an OpenAPI specification to Azure API Management](https://learn.microsoft.com/en-us/azure/api-management/import-api-from-oas)
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23. [API Management with Azure and SwaggerHub](https://swagger.io/blog/api-development/api-management-with-azure-and-swaggerhub/)
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24. [Cloud developer tooling compared: AWS vs. Azure vs. GCP](https://www.pluralsight.com/resources/blog/cloud/cloud-developer-tooling-compared-aws-vs-azure-vs-gcp)

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