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Comment 0. What is any developer's favorite activity? Coding, of course. However, if a developer does nothing but write code, the situation starts looking pretty sad.
In order to achieve optimal results, software engineers need to communicate with each other. In the software development process, documentation is one of the best ways you can support such communication.
One of the best examples of documentation - improving the lives of front-end and backend developers as well as testers - comes from Swagger.
The platform's features include descriptions of input and output models, request parameters, the ability to change environments, and implication and expansion of models. However, as Benjen Stark once said, "You know, my brother once told me that nothing someone says before the word 'BUT' really counts.
Swagger and Node. The first method is to use the swagger-node module. This module is really easy to work with:. However, this method has one significant disadvantage. In non-experimental, real-life situations, information required to create documentation input and output parameters and filters must be described by the controller, making its code incredibly heavy, hard to read, and difficult to understand.
Accordingly, this isn't the best method for a serious project. The second method - a method more applicable to large-scale projects - is Swagger UI.
How to Bring Swagger and Node.js Together
It can be used as a module of an existing application, or launched in a separate Docker container:. To create the Docker container, you can use a readymade image, launching the container and indicating the path to the documentation file.
I recommend using a different approach, however - one which allows more precise adjusting and tuning:. At this point, you understand that you need to have a united configuration file. However, working with a giant file that contains the entire project's documentation is a highly uncomfortable experience. The only way to work with any project bigger than "Hello, World!
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There are two ways to divide documentation into modules: You can use third-party libraries, or you can solve the problem on your own. The most popular library makes it possible to use the internal reference tool.
This is obviously comfortable. However, this approach limits you with the links to the description of the models within the same file. You may think that other proprietary solutions will be less sophisticated, but let's not jump to conclusions. Swagger documentation consists of several big sections described in JSON format:. After looking at this kind of representation, you may conclude that one of the most convenient ways to collect documentation from files is via simple concatenation.
In this approach, you describe each model and path in the file. The documentation generator can be also divided into several logical parts. The first one is preparatory: You are going to connect all required libraries and a "header" for Swagger documentation.
I followed instructions to set up swagger documentation for my existing node API using swagger-jsdoc. The swagger. It actually fails to do so because I'm serving the page through https and the petstore is not https but that's a different matter Inputing my address to the swagger.
It shows the API page correctly and validates it. However, I don't want to always re-enter the address there and would like to have it as a default.
Swagger UI 3. I had been having this issue lately when deploying using docker. Tried everything from changing all instance of petstore to my own api json docs but to no avail. Took me two days but it was great to see it finally working. Learn more. Swagger-ui keeps showing example petstore instead of provided swagger. Asked 2 years, 11 months ago. Active 1 month ago. Viewed 1k times. Active Oldest Votes. It was fixed in 3.
Helen Helen Hah, I knew it would be something like this. I'm not actually going to check this because I moved away from swagger in the end but this looks like perfect explanation. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.
Post as a guest Name. Email Required, but never shown. The Overflow Blog. The Overflow How many jobs can be done at home? Featured on Meta. Community and Moderator guidelines for escalating issues via new response….It provides a powerful and actively developed ecosystem of tools around this formal specification like code generators and editors. The best part of Swagger is that the documentation of methods, parameters, and models are tightly integrated into the server code, allowing APIs to always stay in sync.
And so we make the swagger. The online editor can be used for creating the file. In this section, we will install swagger, setup the swagger UI and generate server side and client SDK using it. For installing swagger using Node package manager execute the following command:. Use of '-g' flag will ensure the module is installed globally. Next, we will create a project using the following command:. Express can be selected for the same. The server is basically ready now and can be started using this command to be executed in project root:.
For installing swagger using Node package manager execute the following command: npm install -g swagger Use of '-g' flag will ensure the module is installed globally. This can be started in a new terminal using: swagger project edit This will open up the swagger editor in a browser tab on a randomly generated port. PDF - Download swagger for free.
Previous Next. Related Tags ASP.So it happened I started this project with friend of mine, a new app to launch on the mobile market. I offered to write the server-side, a simple web API. Once he got my code he immediately asked me "Sam how do I know the routes and so on?! Write a documentation or something! And then Swagger came up.
Swagger and NodeJS
This is the approach I am going to follow in this tutorial: We first focus on the design and then on the code. You can directly clone the app repository from my Github here. As said before Swagger is supported in node.
The prompt asks for the framework we want to use, choose express. Once completed, let's take a look at the project directory:. Not original at all, I give you that, but as we are beginners it is good see Swagger in action and get insight on how it works. In order to run the example I have to introduce Swagger editor. Swagger editor is an elegant browser-based editor which really simplifies our efforts to develop a web API.
In particular, it provides:. The picture above shows you the UI of the Swagger editor of our app. On the left you can see the yaml file we are going to edit swagger. By clicking on any of them we can have a good understanding of the parameter required, the format of request and responses, more generally a description of the route.
Wiring up an API server with Express and Swagger
If everything went well the editor should open a new tab in your browser. We are asked to enter a paramenter name : Go for it and test the route. Here is my result:. The parameter name is the only one and you may see that it is in the path, it is not required and it is a string.
We can define a different response for each situation, given the http status or errors, a particular response can be defined. Why is that?This module allows you to serve auto-generated swagger-ui generated API docs from express, based on a swagger. Swagger version is pulled from npm module swagger-ui-dist. Please use a lock file or specify the version of swagger-ui-dist you want to ensure it is consistent across environments. If you want to set up routing based on the swagger document checkout swagger-express-router.
By default the Swagger Explorer bar is hidden, to display it pass true as the 'explorer' property of the options to the setup function:. To pass custom options e. For all the available options, refer to Swagger UI Configuration. To customize the style of the swagger page, you can pass custom CSS as the 'customCss' property of the options to the setup function.
Value must be the public url of the js file. To load your swagger from a url instead of injecting the document, pass null as the first parameter, and pass the relative or absolute URL as the 'url' property to 'swaggerOptions' in the setup function. To load multiple swagger documents from urls as a dropdown in the explorer bar, pass an array of object with name and url to 'urls' property to 'swaggerOptions' in the setup function.
Make sure 'explorer' option is set to 'true' in your setup options for the dropdown to be visible. To load your swagger specification yaml file you need to use a module able to convert yaml to json; for instance yamljs. To dynamically set the host, or any other content, in the swagger file based on the incoming request object you may pass the json via the req object; to achieve this just do not pass the the swagger json to the setup function and it will look for swaggerDoc in the req object.
Git github. Need private packages and team management tools? You may be also interested in: swagger-jsdoc : Allows you to markup routes with jsdoc comments. It then produces a full swagger yml config dynamically, which you can pass to this module to produce documentation.
See below under the usage section for more info.Check out our Good first issue label. Refer to the 2. We strongly suggest that you use swagger-ui instead of swagger-ui-dist if you're building a single-page application, since swagger-ui-dist is significantly larger. Integration tests can be run locally with npm run e2e - be sure you aren't running a dev server when testing! To help with the migration, here are the currently known issues with 3. This list will update regularly, and will not include features that were not implemented in previous versions.
Please disclose any security-related issues or vulnerabilities by emailing security swagger. Git github. This repository publishes to three different NPM modules: swagger-ui is a traditional npm module intended for use in single-page applications that are capable of resolving dependencies via Webpack, Browserify, etc. Known Issues To help with the migration, here are the currently known issues with 3. Only part of the parameters previously supported are available. Support for collectionFormat is partial.
Relative path support for external files is not implemented. Security contact Please disclose any security-related issues or vulnerabilities by emailing security swagger. Keywords none. Install npm i swagger-ui Downloads Weekly Downloads 85, Version 3. License Apache Unpacked Size 3.
Total Files Homepage github. Repository Git github. Last publish 3 months ago. Try on RunKit. Report a vulnerability.To make this easy I have written a small package called swagger-routes-express updated recently to support OpenAPI 3 in addition to Swagger 2.
The following is a simple API defined with Swagger in a file my-api. Define an async function to create and configure the Express app itself. This will use the swagger-parser library to parse our swagger api YAML file hence the need to be async and pass the parsed info to swaggerRouter to configure it. Most APIs need to add some level of authentication and access control to specific routes.
In the Swagger document you can add security information on a path-by-path basis. You need to tell the swaggerRouter how to associate the security scopes defined in the document with actual authentication middleware. Now in our makeApp function we need to pass in some options to swaggerRouter. Now the connect function will know to associate paths with the scopes identity.Add Swagger-UI To Existing NodeJS TypeScript API
The swaggerRouter understands that the ping route is not to go under the basePath because of the root tag. You can change this in the options outlined below.
If the Swagger doc defines an operationId that cannot be mapped to an existing route controller function then the connector will insert a default notImplemented function in its place that returns res. If no operationId is associated with a path then the connector will insert a default notFound function that returns res. You can override the default functions via options passed to swaggerRouter as outlined below. The full set of allowed options for the swaggerRouter function is:.
The swagger-express-validator validates the inputs and outputs of your API route controllers against their Swagger definitions. When combined with comprehensive integration tests you assert the correctness of your server. Sign in. Dave Sag Follow. Some rights reserved. See responses 2.