There is a single entity for which we will be adding user-name and avatar image. Step 3: Define Database Configurations and Entity Classes You can also import the sample project from here. There are many ways to create a Spring Boot application, the simplest way is to use Spring Initializr. Let's create and import our application in your favorite IDE.
Update avatar image (uses multipart/form-data) The following are the endpoints for our demo app:Ĭreate a user(avatar should be updated later)
I will not go in details of how to define Swagger specs. Please refer to the definition file included in the project. I have created a minimal definition that serves enough for this post. For more details, I recommend checking out swagger.io.
The framework provides a set of tools that help programmers generate client or server code and many more. Swagger is the largest framework for designing APIs using a common language and enabling the development across the whole API lifecycle, including documentation, design, testing, and deployment. Swagger emerged as an approach to building APIs and soon became the most popular framework for this purpose. Step 1: Why Swagger, You May Ask?Įarlier, there were no industry standards for developing APIs or documenting them.
Spring Boot - 2.0.4.RELEASE, Spring Data Jpa ()Īudience: It is expected that you have a basic understanding of Spring Boot. Among the advantages, it provides "maxUploadSize", "maxInMemorySize", and "defaultEncoding" settings as bean properties.Ĭreate the Spring Boot Project (I will follow 3 tier model)ĭefine Database configurations and entity classesĮclipse (you can use your preferred editor) StandardServletMultipartResolver for the Servlet 3.0+ Part APIįor more flexibility and configurability, I choose to use CommonsMultipartResolver. To use CommonsMultipartResolver to handle the file upload, we need to add the following dependency: Spring Boot 2 RESTful API Documentation With Swagger 2 TutorialĪs it has been mentioned in the documentation, there are two concrete implementations included in Spring, as of Spring 3.1:ĬommonsMultipartResolver for Apache Commons FileUpload Such a resolver gets applied to all requests handled by the DispatcherServlet. To define an implementation, create a bean with the id "multipartResolver" in a DispatcherServlet's application context. There is no default resolver implementation used for Spring DispatcherServlets, as an application might choose to parse its multipart requests itself. We are going to use MultipartResolver, particularly CommonsMultipartResolver for an added advantage. In the demo app, we will try to upload a document, particularly an avatar for a user account. In this article, I will describe how we can integrate OpenAPI (Swagger) specification to a spring boot project, particularly focusing on handling multipart/form-data. This marks that the component has the lowest priority among all other similar components. The default value is Ordered.LOWEST_PRECEDENCE. It has an optional value argument that determines the order of the component. The defines the sorting order of an annotated component or bean. In Spring, and mainly in Spring Boot, the auto-configuration feature gives us big-time help even though sometimes we have to disable some features to add custom once or to change the order they are sorted in. This leads us to research how to satisfy the requirement. Mostly in REST APIs, we are accustomed to using JSON input and output while it is XML for SOAP web services. while working on a requirement, there came a need to upload a file for further processing.