swagger response body no content

When I return "String" from the REST api, swagger-ui is displaying "no content" in the response body with response code as "0". I am trying Swagger UI for the first time with my own API. You should add Access-Control-Allow-Origin: * into response headers. You signed in with another tab or window. Using this in startup.cs file. privacy statement. We can follow the steps in this article for setting up Swagger 2 with a Spring REST API. rev2023.1.18.43170. In this sample, the Swashbuckle.AspNetCore the .NET implementation is shown. Ask the community Sign in Al tough the server sends a meaningful response text back. Examining the network tab in chrome console, shows that the request made is an OPTIONS request. Steps to reproduce: Go to http://petstore.swagger.io/ Test and generate API definitions from your browser in seconds. None. Simply put, the @RequestBody annotation maps the HttpRequest body to a transfer or domain object, enabling automatic deserialization of the inbound HttpRequest body onto a Java object. User61956409 posted. Unfortunately, it appears that swagger annotations cannot (currently) handle this. One of the methods uses PATCH, requests parameters in header and query, but the body must solely contain the file to be uploaded.</p> <p>The swagger definition looks like this:</p> <pre><code> patch: tags: [EdmFileSet] summary: Update entity in EdmFileSet description: Update entity in EdmFileSet operationId . Sign up for a free GitHub account to open an issue and contact its maintainers and the community. swagger-ui expects it to be a JSON, tries to parse it and fails, giving you the wrong error message. 2 (fka Swagger). The body parameter is defined in the operations parameters section and includes the following: Did not find what you were looking for? Test and generate API definitions from your browser in seconds. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. services @RequestBody. My I should mention that this API's URL is not publicly accessible, but the site that hosts the Swagger UI is in the same network as the site that hosts the API, not sure it matters. 3 - NestJS Swagger API Response API Responses are crucial for clients to write their logic while our APIs. The server might want to return updated meta-information in the form of entity headers, which, if present, SHOULD be applied to the current document's active view if any. Swagger treats no schema as a response without a body. HTTP Status 204 (No Content) indicates that the server has successfully fulfilled the request and that there is no content to send in the response payload body. Swagger UI does not show the response body. Thanks. Goal: response body contains full backend server URL that needs to be replaced with API management server URL. (you can run the sample by executing node static-server.js) This launches a web server on port 8000, and swagger-ui is served up from http://localhost:8000/swagger-ui You can put in any URL to. Tried the same request using swagger generated curl request, returned expected response. 1 comment Closed Simple string response rendered as "no content" with response code 0. Not really sure what I am doing wrong, and how to debug this further. But the standard responses leave something to be desired. Well occasionally send you account related emails. If you can open the debug tab in your browser and share any errors, thatd be helpful. Do you put the image1 and image2 as Query parameter within the action path in your custom connector? 2.1. There is one end point in my .yaml. Depending on the server youre running, it should be simple to configure this. All Rights Reserved. Body and form parameters are replaced with. to your account. springfox-swagger-ui The text was updated successfully, but these errors were encountered: If you're saying that your server produces json: But you return non-json, you're going to get an error. This happens when the request method is a safe method, such as GET or HEAD, or when the request is conditional and uses an If-None-Match or an If-Modified-Since header. @ApiResponse(code = 404, message = "no such user or identity") produces the below spec without the schema field. Tried the request on Postman, got expected response. How could magic slowly be destroying the world? To create a REST API from scratch, we can follow this tutorial from Spring Docs to create a RESTful web service using Spring Boot. Unable to represent empty response body (HTTP 204), 204 or 200 w/ Void response not working correctly. Thank in Advance. I then investigated the content of the web service response in Fiddler, and found that some characters were put before and after the response's payload. privacy statement. content lists th. Find centralized, trusted content and collaborate around the technologies you use most. All Rights Reserved. Already on GitHub? @ApiResponse(code = 204, message = "No User found for that Id",response = Object.class), So whenever an Object.class is returned swagger will automatically convert it into Void.class. SwaggerUi-Version: 2.2.10. Customizing Swagger Responses for Better API Documentation | by Stephen Darlington | Trimble MAPS Engineering Blog | Medium Write Sign up Sign In 500 Apologies, but something went wrong on our. When an API returns a single string as a response it is shown as no content with response code 0 in Swagger-UI. Well occasionally send you account related emails. #2571 You can use it to validate the request body contains all the necessary information about the object to be updated, depending on the object type. Yes, that is the correct (default) behavior for 404. Applies to: Operations "x-ms-trigger-hint": "To see it work, add a task in Outlook." x-ms-notification-content. How can I fix this. Indefinite article before noun starting with "the". See below example: I expect Swagger to have defaults that are the same as a normal browser, and even if it doesn't and it uses application/json as a default, then still the API should work. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I am using Swagger UI to document a service, and one of the endpoints returns embeddable content. Is this variant of Exact Path Length Problem easy or NP Complete. to your account. Standardize your APIs with projects, style checks, and reusable domains. 1 ACCEPTED SOLUTION Ballzer0 Advocate I In response to v-yuxima-msft 06-11-2019 02:56 AM i figured that custom connectors does not like 204 No Content responses. Wall shelves, hooks, other wall-mounted things, without drilling? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. 2023 SmartBear Software. I am using swagger on the same localhost server as where the web services are located and had the same problem. Try looking at the raw network call produced by the UI, even paste it here if you can. However, it does mean your spec does not match what your API actually does. Consider returning the type that the server claims to produce. I have tested it with Postman, sending application/json and everything is normal. Let us know. The browser will use a variant of text/html, application/*+xml and so on. Let us know. const image = document.getElementById('target'); // Fetch the . any solution you got. Found a mistake? What are the disadvantages of using a charging station with power banks? Build-Time: 2017-05-20T22:12:34-0500 I agree with you that the correct behavior for a 204 would be to assume no response unless otherwise specified, but that is not what currently happens. Generate server stubs and client SDKs from OpenAPI Specification definitions. Additionally, consider adding special case handling to 204, since its meaning according to the HTTP spec strongly implies that there should be no response. .AddMvc() How can I fix this. Swagger UI loads the yaml without any problems when I enter the URI into the URI field and click "Explore". It is important for API developers to provide a set of possible responses our API can give. Creating the API If I see validator badge problem I will open a separate issue. Describing Responses An API specification needs to specify the responses for all API operations. Setting up a Spring Boot Project with Swagger UI. Visualize OpenAPI Specification definitions in an interactive UI. Following is the dependency used. Raw result:" added to response body, Response body is not returning from custom error responses in swagger Swashbuckle, swagger example response not respecting nested allOf, Toggle some bits and get an actual square. <p>Based on an OpenAPI v2 definition I have created a custom connector. I will investigate further but I am running out of ideas. When clicking Try it Out, I see a correct Request URL, but the Swagger UI returns "no content" in the Response Body, and Response Code 0. Design & document all your REST APIs in one collaborative platform. I am facing same issue. Al tough the server sends a meaningful response text back. Have a question about this project? If you dont control the server but still want to get this to work, you can use a CORS proxy, at least for initial testing. The text was updated successfully, but these errors were encountered: The error is real, but misleading. Spring automatically deserializes the JSON into a Java type, assuming an appropriate one is specified. to your account, In many of the APIs that I'm developing, we have cases where we reporting success does not require a response body (ex: deleting an entity, there is nothing to say if it works since the entity is gone.). To indicate the response body is empty, do not specify a schema for the response. Let us know. How can we cool a computer connected on top of or within a human brain? None worked. GET, DELETE and HEAD are no longer allowed to have request body because it does not have defined semantics as per. To learn more, see our tips on writing great answers. I also tried a liberal crossdomain.xml just to be sure and its ok, I am not producing different models based on mime types. If you are using .NET Core. Meaning of "starred roof" in "Appointment With Love" by Sulamith Ish-kishor. To learn about the latest version, visit OpenAPI 3 pages. Based on the issue that you mentioned, I think this issue is related to the image1 and image2 as Query parameter in your action path ("ConvertMe") of your custom connnector. To learn more, see our tips on writing great answers. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Perhaps a CORS issue? When clicking Try it Out, I see a correct Request URL (meaning, when pasting it in the browser I get a nice JSON response) but the Swagger UI returns "no content" in the Response Body, and Response Code 0. Is the rarity of dental sounds explained by babies not immediately having teeth? requestBody consists of the content object, an optional Markdown -formatted description, and an optional required flag ( false by default). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. There can be only one body parameter, although the operation may have other parameters (path, query, header). Ask the community 2023 SmartBear Software. In most likelihood, you've set the spec so that it returns a specific content type (say, application/json) but you actually return plain text (like a string or a number). The POST, PUT and PATCH requests can have the request body (payload), such as JSON or XML data. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. OAS 2 This page applies to OpenAPI Specification ver. Swagger UI renders the code as HTML, as described above. Already on GitHub? io.springfox Swagger, also known as OpenAPI, solves the problem of generating useful documentation and help pages for Web APIs. There's no such thing as 'Swagger 2.7.0'. If you use OpenAPI 2.0, see ourOpenAPI 2.0 guide. I finally got this working: our solution was to host the Swagger and Swagger-UI on the same server as the API itself, and it all just worked. Do peer-reviewers ignore details in complicated mathematical computations and theorems? The best I can suggest is to use your browser's web console to see the actual request being sent by the UI. Are there developed countries where elected officials can easily terminate government workers? "2.7.0" is the Springfox library version not the Swagger version. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 10 No Response when consuming a swagger.json with body object parameter Question REST I am trying to consume a swagger.json file. Implementation-Title: springfox-swagger-ui I have tried giving "text/plain" in swagger java file as producer, but no luck. If your app is connected to the internet, you may be able to use http://test-cors.org/ to test it. (IIRC 404 already works like this unless you specify a response property for it.). If you use OpenAPI 2.0, see ourOpenAPI 2.0 guide. So I had to override it with something empty. Is there a way to upgrade swagger-ui version to limit the issue? "Void.class" would seem like the right choice, but this is the default value, thus leading to the inheritance from @ApiOperation. Built-By: d_krishnan Perhaps a CORS issue? A description of how to fire an event for a trigger operation. Is the rarity of dental sounds explained by babies not immediately having teeth? Ask the community Already on GitHub? How we determine type of filter with pole(s), zero(s)? singleObject response; batchArray response "x-ms-trigger": "batch" x-ms-trigger-hint. Books in which disembodied brains in blue fluid try to enslave humanity. I don't control the server, but I'll speak to the team that does. Problem - How to navigate this scenerio regarding author order for a publication? Kyber and Dilithium explained to primary school students? swagger:response Reads a struct decorated with swagger:response and uses that information to fill up the headers and the schema for a response. Created-By: 1.7.0_79 (Oracle Corporation) One final note, since you brought it up - I want to be sure you're aware that you can't describe an operation that returns different models based on the mime type. Do you have the ability to return 200 for OPTIONS requests? There can be only one body parameter, although the operation may have other parameters (path, query, header). You signed in with another tab or window. I knew that swagger is not able to parse String to JSON. API editor for designing APIs with the OpenAPI Specification. How can I limit the issue. When was the term directory replaced by folder? Strange fan/light switch wiring - what in the world am I looking at. Please can any one help. First of all, this isn't an issue for sure, but I tried almost a day with no success. Visualize OpenAPI Specification definitions in an interactive UI. Well occasionally send you account related emails. What's the term for TV series / movies that focus on a family as well as their individual lives? Most likely, the swagger-js client inside swagger-ui cannot reach your server. Asking for help, clarification, or responding to other answers. By clicking Sign up for GitHub, you agree to our terms of service and https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#responsesDefinitionsObject, https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#responsesObject, https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#responseObject, Did not find what you were looking for? Have a question about this project? --. Why are there two different pronunciations for the word Tee? to your account. Some responses, such as 204 No Content, have no body. will display the 204 response as though it will produce JSON consisting of {} (an empty object). privacy statement. An API specification needs to specify the responses for all API operations. I also tried @bijayy33 suggestion, but it did not bring any improvement. Do peer-reviewers ignore details in complicated mathematical computations and theorems? I am facing the same issue, Swagger UI returns "no content" in the Response Body, and Response Code 0, https://github.com/swagger-api/swagger-ui/blob/master/README.md#cors-support, Microsoft Azure joins Collectives on Stack Overflow. I may be a bit late to the party, but the following workaround does the trick for me, in case anyone with the same issue is stumbling across this issue: In Swagger terms, the request body is called a body parameter. A swagger:route can specify a response name for a status code and then the matching response will be used for that operation in the swagger definition. type: object properties: hunts: type: boolean age: type: integer The example above shows how to validate the request body in the "update" operation (PATCH). GitHub swagger-api / swagger-core Public Notifications Fork 2.1k Star 7.1k Code Issues 676 Pull requests 53 Actions Projects 1 Wiki Security Insights New issue Unable to represent empty response body (HTTP 204) #2446 Closed Is it OK to ask the professor I am applying to for a recommendation letter? How to make chocolate safe for Keidran? @vipingupta5352 Good workaround, but then you end up with a schema referring to Void instead of it being omitted: I've found that specifying void.class for the response type of @ApiOperation will result in the schema block being removed: This doesn't seem to be reproducible in latest version, providing annotations as in example below results in a response without schema : Closing ticket, please reopen if you're still experiencing issues (please provide the version, environment and full annotated code), I have had the same issue with Swagger and springfox-boot-starter version 3.0.0, I could eliminate the displaying of a repsonse body, by annotating the controller method with the following: You mentioned that the application and UI are hosted in the same network. I am looking at the header to see if it is in the form of application/vnd.MyName.v3+json or application/vnd.MyName+json. For me the problem was, that the @ApiResponse inherited the response type from @ApiOperation. By now we should all be using Swagger to automatically generate documentation for our RESTful APIs (If you're not, why not?) If it does not match any of these patterns, I am returning the latest version, json-encoded. Have a question about this project? Since you mentioned it returns a JSON, it should allow that, but it's likely that it's just not configured that way. Well, they are on the same IP and same Apache server. How Intuit improves security, latency, and development velocity with a Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Were bringing advertisements for technology courses to Stack Overflow, Getting Response code 0 in API manager wso2 while Trying to connect Through enterprise Proxy, Swagger UI 2.1 Stuck "fetching resource list", Swagger POST Json Body Parameter Schema YAML, Swagger-UI detecting the response content-type selected, Avoid additional fields in json apart from the fields defined in the swagger to fail the validation in WSO2 APIM 3.1.0. Not the answer you're looking for? Generate server stubs and client SDKs from OpenAPI Specification definitions. So i had to make a modified version of my azure function where it returned some content in order for the custom connector not not error out. You signed in with another tab or window. Not the answer you're looking for? If no @ApiResponse#response property is specified, no schema property will exist in the resulting spec. A response is defined by its HTTP status code and the data returned in the response body and/or headers. So no CORS problem could be involved. Standardize your APIs with projects, style checks, and reusable domains. I have tried giving "text/plain" in swagger java file as producer, but no luck. Test and generate API definitions from your browser in seconds. Standardize your APIs with projects, style checks, and reusable domains. springfox-swagger2 Did not find what you were looking for? When clicking Try it Out, I see a correct Request URL, but the Swagger UI returns "no content" in the Response Body, and Response Code 0. But if you re-read my previous message, you'll see that the incorrect schema appears for 204 regardless of whether or not I provide an @ApiResponse#response property. By clicking Sign up for GitHub, you agree to our terms of service and The other locations would render the spec invalid. Visualize OpenAPI Specification definitions in an interactive UI. Swagger doesn't show response body Ask Question Asked 1 year, 9 months ago Modified 7 months ago Viewed 2k times 1 My Swagger endpoint always shows "no content" in the Response Body. The HTTP 304 Not Modified client redirection response code indicates that there is no need to retransmit the requested resources. The reason for not showing the Response Body is the following parameter in @RequestMapping : produces = "application/json", I removed "produces = "application/json" and the response body is shown correctly. NestJS provides the @ApiResponse () decorator to specify the possible API Response. 2 (fka Swagger). You signed in with another tab or window. It works great out of the box to show other developers the basics of your resources. It will be great if someone can suggest what am doing wrong. When I return "String" from the REST api, swagger-ui is displaying "no content" in the response body with response code as "0". Hi @Macwin ,. I am trying Swagger UI for the first time with my own API. I see this stack overflow question, but not found the solution. I use swagger with Json. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Swagger-ui, by default, will use application/json for its Accept header, unless you specified something else in the 'produces' of the operation. I don't know what version of swagger-ui is provided with springfox 2.7.0. 2.7.0. The payload name. I see this stack overflow question, but not found the solution. ( Yes, same port. [HttpPost] public void Post([FromBody] Blog blog) { //codelogic } Please share the code snippet of your API controller action and definition of Blog class, so that we can help troubleshoot the issue better.. With Regards, io.springfox Add and configure Swagger middleware C# Operation contains <code>rewrite-uri</code> policy to map API Management URL to root backend URL. However, in chrome developer tools, the correct request is going and the expected response is showing. Connect and share knowledge within a single location that is structured and easy to search. If you can open the debug tab in your browser and share any errors, that'd be helpful. When I used the wrong term "produce" I did break it so I was able to see how it behaves when broken. In Swagger terms, the request body is called a body parameter. Making statements based on opinion; back them up with references or personal experience. View solution in original post Message 3 of 3 Avoiding alpha gaming when not alpha gaming gets PCs into trouble. At least as it behaves on my system no, that is not a workaround. I am pretty new with swagger and .NET Core. Found a mistake? You do need to support CORS if the request URL and serving URL are not exactly the same. Can you check the calls in the network tab of your browser's developer tools?. How (un)safe is it to use non-random seed words? In the Pern series, what are the "zebeedees"? How to translate the names of the Proto-Indo-European gods and goddesses into Latin? Test and generate API definitions from your browser in seconds. Built-On: ISDV161716L.local/192.168.1.163 2.7.0 to swagger-sw.@googlegroups.com Not sure if the 401/405 may be causing the issue, but we can investigate further. It provides benefits such as interactive documentation, client SDK generation, and API discoverability. Found a mistake? Contains a schema definition of a webhook notification request. Double-sided tape maybe? Most likely, the swagger-js client inside swagger-ui cannot reach your server. Looks like you need to enable CORS then. I knew that swagger is not able to parse String to JSON.