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Amazon API Gateway vs Swagger UI: What are the differences?
- Costs: Amazon API Gateway is a fully-managed service that charges based on the number of API calls and data transferred, while Swagger UI is an open-source tool that is free to use.
- Functionality: Amazon API Gateway provides features like rate limiting, authentication, and cache management, which are not available in Swagger UI. Swagger UI, on the other hand, focuses solely on providing a user interface for exploring and testing APIs.
- Integration: Amazon API Gateway seamlessly integrates with other AWS services like AWS Lambda, AWS Identity and Access Management (IAM), and Amazon CloudWatch, allowing for easy development and monitoring of APIs. Swagger UI does not have these built-in integrations and requires manual configuration.
- Documentation: Amazon API Gateway offers automatic generation of API documentation, including examples and input/output models. Swagger UI also generates API documentation but may require additional configuration and customizations.
- Scalability: Amazon API Gateway is designed to handle high traffic and provides automatic scaling to handle spikes in API requests. Swagger UI does not have built-in scalability features and may require additional infrastructure setup for handling increased traffic.
- Security: Amazon API Gateway provides security features like OAuth 2.0, API key management, and request validation, which help protect APIs from unauthorized access and attacks. Swagger UI does not have these security features and relies on the security mechanisms implemented in the API itself.
In Summary, Amazon API Gateway offers more advanced functionality, integration with other AWS services, scalability, automatic documentation generation, and security features compared to Swagger UI, which is a free tool primarily focused on providing a user interface for exploring and testing APIs.
From a StackShare Community member: "I just started working for a start-up and we are in desperate need of better documentation for our API. Currently our API docs is in a README.md file. We are evaluating Postman and Swagger UI. Since there are many options and I was wondering what other StackSharers would recommend?"
I use Postman because of the ease of team-management, using workspaces and teams, runner, collections, environment variables, test-scripts (post execution), variable management (pre and post execution), folders (inside collections, for better management of APIs), newman, easy-ci-integration (and probably a few more things that I am not able to recall right now).
I use Swagger UI because it's an easy tool for end-consumers to visualize and test our APIs. It focuses on that ! And it's directly embedded and delivered with the APIs. Postman's built-in tools aren't bad, but their main focus isn't the documentation and also, they are hosted outside the project.
I recommend Postman because it's easy to use with history option. Also, it has very great features like runner, collections, test scripts runners, defining environment variables and simple exporting and importing data.
Pros of Amazon API Gateway
- AWS Integration37
- Websockets7
- Serverless1
Pros of Swagger UI
- Open Source49
- Can execute api calls from the documentation34
- Free to use29
- Customizable19
- Easy to implement in .Net14
- Mature, clean spec13
- API Visualization12
- Coverage9
- Scaffolding6
- Easy to use6
- Vibrant and active community5
- Elegant4
- Adopted by tm forum api3
- Clear for React2
- Api1
- Can deploy API to AWS API Gateway and AWS Lambda1
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Cons of Amazon API Gateway
- No websocket broadcast2
- Less expensive1
Cons of Swagger UI
- Need to learn YAML and RAML3
- Documentation doesn't look that good2
- Doesn't generate code snippets in different languages1
- You don’t actually get in-line error highlighting1
- Does not support hypermedia1
