# Talend-tillägg och -annoteringar

Exportera ditt API med Talend-tillägg eller -annoteringar för att behålla uttrycksfullheten som tillhandahålls av API-kontrakt.

När du exporterar ett API kan du välja att inkludera Talend-tillägg för OpenAPI Specification, eller Talend-annoteringar för RAML. Dessa gör att du kan behålla strukturen för ditt API så som den definieras i API Contracts.

I exempelvis Contacts API sorteras resurser och operationer i avsnitt, och textblock används för att lägga till information.

![Skärmbild av Contacts API.](https://help.qlik.com/sv-SE/cloud-services/Subsystems/Hub/Content/Resources/Images/ApiDesigner/designer_talend_extensions.png)

Om du exporterar denna definition utan Talend-tillägg eller -annoteringar exporteras inte avsnitt och textblock. Men med tilläggen eller annoteringarna inkluderas de i koden.

Delavsnittsinformationen läggs till i alla element som ingår i ett delavsnitt:

```
    x-talend:
      section: "Companies"
```

Textblock läggs till i slutet av filen:

```
  texts:
    3a36b8ba-2969-46f0-a36e-9d715eeece36:
      title: "Authentication"
      content: "This API is secured using Basic Authentication.\n\nAll **read operations are open** and don't require authentication. However, all **write operations require authentication**. "
      section: "General"
    612e4b7f-0530-4835-8a47-f580869c67df:
      title: "Error handling"
      content: "This API uses standard HTTP status codes to indicate the status of a response.\n\nThere are two main categories of error responses. Each have a different response payload structure.\n\n* Simple errors\n* Detailed errors\n\n\n# Simple errors\n\n| Name | Code | Description |\n| -------- | -------- | -------- |\n| Bad request     | 400     | The request was unacceptable     |\n| Unauthorized     | 401     | The request has not been applied because it lacks valid authentication credentials for the target resource.     |\n| Forbidden     | 403     | The server understood the request, but is refusing to fulfill it     |\n| Not Found     | 404     | The server has not found anything matching the request URI     |\n| Not acceptable     | 406     | The server is unable to return a response in the format that was requested by the client     |\n| Unsupported Media Type     | 415     | The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method     |\n| Too many requests     | 429     | Too many requests hit the API too quickly     |\n| Server error     | 500     | A technical error occured  |\n\n\n\n\n\n\n# Detailed errors\n| Name | Code | Description |\n| -------- | -------- | -------- |\n| Unprocessable entity     | 422     | The server understands the content type of the request entity, and the syntax of the request entity is correct, but was unable to process the contained instructions.     |\n\n\n\n\n"
| Server error     | 500     | A technical error occurred  |\n\n\n\n\n\n\n# Detailed errors\n| Name | Code | Description |\n| -------- | -------- | -------- |\n| Unprocessable entity     | 422     | The server understands the content type of the request entity, and the syntax of the request entity is correct, but was unable to process the contained instructions.     |\n\n\n\n\n"
      section: "General"
```