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Swagger 2. It also exists for a longer time and has more tools to work with. This package provides means to generate Swagger specification for a Servant API and also to partially test whether API conforms with its specification. Please refer to haddock documentation. All generated swagger specifications can be interactively viewed on Swagger Editor.

Many Swagger tools, including server and client code generation for many languages, can be found on Swagger's Tools and Integrations page. Please report bugs via the github issue tracker.

SWAGGER - "Il Faut Créer Son Style" - Extrait TEASER (Cannes 2016)

Produced by hackage and Cabal 2. Generated Swagger specification then can be used for many things such as displaying interactive documentation using Swagger UI ; generating clients and servers in many languages using Swagger Codegen ; and many others. Versions [ faq ] 0. Swagger Servant. Internal Servant. Orphans Servant.

Swagger - Plugins | JetBrains

Test Servant. TypeLevel Servant. API Servant. This acts as living documentation for your API hosted from within your app.

And thankfully, the documentation for how to do this is both up to date and accurate. It makes it really simple. Above is a shot of my full server. What you need to focus on, however is this section of the photo. As you can see, both swaggerJSDoc and swaggerUiExpress are imported into the file this can also be done with require if you choose not to use an ES6 transpiler in Node.

What is Swagger?

Then the swaggerDefinition object is created this is part of the setup required by swagger-jsdoc. Its properties include info like a title for the app, a version and a description. It also needs a host in my case, port is the port exposed from my Docker container for the API and a basePath. After that, the swaggerSpec variable is initialized, which wraps the options object in swaggerJSDoc. Then, the Express server is given a route to see the full swagger.

But to me, this is secondary to the piece of the code, below, which is what actually combines the swaggerSpec with the swaggerUi module that creates the Swagger UI I know and love. Before I could write my routes, referencing my User object, I needed to go to the actual object declaration file and tell Swagger what made up my user. Everything between the. The last thing of note is the required object properties.

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That is username , password , and email for my app. The next thing to cover is writing the Swagger documentation for each of the routes. One will be a route requiring no authorization, the second will be one requiring a JWT token for authorization, and the third one will need a different randomly generated string to verify it is legit. My first Swagger documentation example is for an unsecured route: my user login route, to be precise. The summary section appears next to the route in the UI, and it nicely describes what the route is used for.

If there were numerous different schemas defined, the tags section would be more useful in organizing different route groups. And then the parameters that the user will input are laid out underneath. Since my JSON is being passed in a request body, in: body is defined.

If it were being passed in the query params it would say in: query instead.

Since both are required for this route to work the required field is set underneath and both properties are referenced note that must be inline with the schema column for the required fields to take effect in Swagger. Finally, the HTTP responses we can expect from the server are laid out with descriptions of what each one means. This route is my findUser route, it gets triggered after the user has logged in and the profile page component starts to mount on the client side to gather all the user info from the database. Once the JWT token is passed in and the request is sent, the Passport.

Aside from the security option, the other difference is in the parameters.



This tells Swagger to pass whatever properties are needed in the query params of the request. The other thing to notice is in the responses section at the bottom of the documentation. I need to reference the User schema so that Swagger understands how to map the response object it receives without having to write out all the object properties again.

One that coincides with a password reset email. Now, you have seen how to setup both swagger-jsdoc and swagger-ui-express in a JavaScript project. I modified the main server.

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Testing the API in the browser via Swagger was actually a very good exercise for me, because it uncovered some logic flaws I was making in my code, and it forced me to rethink how I was handling certain situations like sending error codes and messages from the server to the client. So, first things first, fire up the whole application or the API individually, whichever you choose.

I like to just load the whole thing, because I wrote a single docker-compose.

API-First Approach with Swagger Framework

If you used something different, reference that URL route instead. Now, if all goes according to plan, you should see a screen like this. At this point, you can click any of the links and test out your API endpoints. This will open up a modal for you to input the JWT token string.