properties. PropertyNamingPolicy = JsonNamingPolicy. log("Camel case is every word except for the first Feb 2, 2014 · So as I see there are 3 solutions: Transform data from snake (API) to camel (application) to snake (database) on the fly as needed. Sep 7, 2015 · Improve this question. When generating an open api spec with a request parameter in snake_case form e. camelCase is more comfy to type. If not provided, using the version from the OpenAPI specification file. capitalize for word in name. yaml in snake_case then use openapi-generator to create CamelCase typescript code used in frontend. Mar 14, 2020 · openapi-generator config-help -g typescript-axios CONFIG OPTIONS allowUnicodeIdentifiers boolean, toggles whether unicode identifiers are allowed in names or not, default is false (Default: false) ensureUniqueParams Whether to ensure parameter names are unique in an operation (rename parameters that are not). Spring Doc Open API swagger UI is not displaying attribute in snake case. They are the quite different things. Jul 30, 2020 · So we generate openapi. CamelCase is a naming convention where the first word starts with a lowercase letter, and each subsequent concatenated word begins with an uppercase letter. Use snake_case in node. If you don't believe me take a whiteboard, park it outside the office of a senior male colleague and write your_pen_is_small in camelCase on it. The python clients that are produced from the openapi-generator converts the camelcase to snake case. An example of camel case of the variable camel case var is camelCaseVar. 3. My python models are dataclasses, who's field names are snake_case. I'm working on an existing DB, where the entity property names were kept as is for the table column names (e. Net Core API in which default case is camelCase. How can I make the model mapper configured to accept both snake case and camel case serialisation. They are just a way of naming the resources to resemble natural language while avoiding spaces, apostrophes, and other exotic characters. Dec 27, 2018 · I am using swagger for the documentation of spring-boot-starter-data-rest project. A shorter answer is to use the Spring's objectMapper. net core but what you want is to change the Swagger UI. AspNetCore version 5. SNAKE_CASE); Or annotate a specific model class with this annotation: @JsonNaming(PropertyNamingStrategies. But the mishmash of camelCase and snake_case in my code is Jun 23, 2023 · Camel Case: Camel Case is a casing style where words are joined together without any spaces, and each new word starts with a capital letter except for the first word. Since the names used in YAML appear in the associated Python API, it is clear that on this particular project, the YAML names should obey the Python lower_case_with_underscores naming Apr 28, 2016 · JSON Naming Convention (snake_case, camelCase or PascalCase) [closed] (7 answers) trace_system or using the camel case: traceSystem? What you suggest and why? Mar 22, 2017 · Description. On the other hand I don't know if the libraries will still make the right Jun 14, 2018 · By default, my Spring Boot project had JPA mapping entity properties to table columns by transforming the names from camelCase to snake_case (e. What is Snake Case? Like in camel case, you start the name with a small letter in snake case. For example, consider the variable name firstName. One issue with underscores: usability. Apr 4, 2021 · FastAPI jsonencoder always returns camelCase instead of snake_case. Once you got above types, it is quite simple to convert between them and other cases by using intrinsic string types Capitalize and Uncapitalize: type CamelToPascalCase<S extends string> = Capitalize<S>. "dash-case". split ("_")) return upper [: 1]. In order to do that I have to serialise the data object first. I'm using Asp. Snake case is a similar naming convention to kebab case-- also commonly seen as kebab-case. Features. - Use snake_case on the FE - Frontend developers could rage here. Camel Case is commonly used in JavaScript, Java, and C# for variable and function names. This shouldn’t come to you as a surprise, not only because I know Sep 15, 2021 · What you did is about json serialization in asp. 0 CodeGen plus Node. gz OpenAPI CodeGen Documentation Config file DSL Schema. Camelcase is commonly used for naming variables and method names in programming languages like JavaScript, Java, and C#. spring. Oct 2, 2016 · URI case. Highly recommend doing it this way. Camel case is characterized by having the first word lowercase and subsequent words capitalized. Aug 22, 2022 · Here are some examples of camel case: firstName and lastName. AddControllers Jul 6, 2020 · I need to use snake_case for properties inside my Interfaces or Types. 0. Plural nouns SHOULD be used in the URI where appropriate to identify collections of data resources (e. you the below property in application. Apr 8, 2016 · 3. js app. Snake case examples. For most (european) keyboards, typing the underscore sign requires holding down the SHIFT key. I simply want to create a new row in a database. In case of ES6 import statements, this rule only targets the name of the variable that will be imported into the local module scope. Mar 9, 2020 · Let’s speak clearly: Rails really likes to use “ snake_case ” naming conventions with its variables and file names, while some of the trending front-ends tend to use “ camelCase “, and when these parts want to speak to each other … well this may become a problem. Sep 22, 2021 · openapi-generator version. Also have a look at these C++ Coding standards, which presents some generic reasoning regarding the importance of convention. snake_case seem to be the convention in most of the C sources I've come across. Oct 13, 2019 · Use lower case in Postgres. Linting Rules - OpenAPI V3 - Response GET 500 Status Code. 另外，因為 upper camel case 又稱為 Pascal Case ，因此有部分人泛指 Camel Case 為 lower 現在自分のいるプロジェクトでは、バックエンドをPython、クライアントをTypeScript (Web)とKotlin (Android)で開発している. Dec 21, 2021 · Camel case (ex: camelCase) is usually for variables, properties, attributes, methods, and functions. SQL also supports delimited identifiers; so, mixed case in an option, like camelCase (Java, where fields == columns) or PascalCase (C#, where tables == classes and columns == fields). Example: user_name, my_function. I provided the camel cased versions like this: serviceResponse: type: object. Both conventions can make it easier for a developer to read code because the 139. OpenAPI declaration file content or url. Besides, a URI MUST NOT end with a trailing slash ( / ). NetCore 2. Apr 24, 2020 · 12. We are following the Laravel standard of naming model attributes as snake_case_variables. AddRouting(options => options. And it doesn't work for interfaces and types but works for JS objects. Instead, a hyphen ( -) SHOULD be used to delimit combined words (kebab-case). setPropertyNamingStrategy(PropertyNamingStrategies. Mar 19, 2024 · Camel case is a convention where words are concatenated together, and the first letter of each subsequent word is capitalized, such as “ FlywayMigrator “. It works fine, except that the response models are all snake cased (words sep. 可以進一步細分為 upper camel case ( BrowserStack) 與 lower camel case ( iPhone )，差別在於開頭第一個字是否為大寫．. Jun 3, 2023 · Snake Case: Snake case has all words lowercase separated by underscores. 0: nullSafeAdditionalProps: Set to make additional properties types declare that their indexer may return undefined: false: paramNaming: Naming convention for parameters: 'camelCase', 'PascalCase', 'snake_case' and 'original', which keeps the original name: camelCase Apr 16, 2024 · 1. Some drawbacks to using Camel case. It provides a convenient way to refactor your code and adhere to snake case naming conventions effortlessly. house_nr we have found the functionality of the api generated requires the parameter to be of the form houseNr. json in Asp. Naming Convention for C API. answered Apr 24, 2023 at 7:58. If the name has multiple words, the later words will start with small letters and you use a underscore (_) to separate the words. Pascal Case: Pascal case is similar to camel case but starts with a capital letter. This strategy uses uppercaseLetters and lowercaseLetters to determine the boundaries between words, and the system locale when capitalizing letters. /orders, /products ). However, the client has been setup to send it properties as snake case. property-naming-strategy=SNAKE_CASE. For reference, I'm using the asdict function to convert my models to json. You only have to write it once and both sides get what they want without ever realizing the other side is doing anything different. cs: services. Apr 21, 2023 · To serialize camaleCse to snake_case, use toPlainOnly option in custom transformer logic: @Transform(value => value, { toPlainOnly: true }) fullName: string; Of course, it must be handle around of nestjs serialization techniques by builtin interceptor, mostly in global scope. I’m wondering if there is an option or configuration that can keep snake_case for elixir code, but expose OpenAPI schemas in camelCase. You need to add the following Maven dependency: CamelCase. Linting Rules - OpenAPI V3 - Response GET 500 Problem JSON Media Type. Linting Rules - OpenAPI V3 - Response PATCH 204 No Body. You simply prefer the visual separation. Options. Jan 15, 2021 · If you could create your own programming language would you have snake case or camel case as the standard? In case you don't know what snake/camel case is here is an example: Python example (Python uses snake case): Javascript example (Javascript uses camel case): const camelCase() => { console. Some are returning this in the snake case for example roll_no. By default in Asp. It's not snake vs. Now we can change the field names to camelCase but that does not follow the Feb 20, 2021 · The standard way to accept and return data in ASP. Snake case (ex: snake_case) is commonly used in scripting languages like Python and as a constant in other C-styled languages. URI. cshtml and the resulting route becomes /dashboard-settings. CamelCase. – Neal Ehardt. This can become very ugly looking fast though especially since we are using Typescript interfaces. JsonSerializerOptions. Please have a look at This rule only flags definitions and assignments but not function calls. The pros and cons are quite similar to those of snake case, with the exception that some languages do not allow Explicitly converting between business logic objects in Python (that might have snake_case attributes) to JSON objects for API response payloads (that might have camelCase attributes) is a good idea. class) Before Jackson 2. In general, snake case is considered easier to read because the underscores make it clear where one word ends and the next begins. In CamelCase, it would be written as firstName. These links discusses about the naming conventions of C/C++ Standard Library. type PascalToSnakeCase<S extends string 25. In contrast, snake case uses an underscore between words to create separation. The JSON contains multiple layers of nesting, both Hashe You can achieve this using a custom Hibernate naming strategy. I have been using openapi-generator to generate python clients from a JSON The JSON Schema follows CamelCase conventions. cagcak. This issue exists in other language examples as well but I suppose that's due to the language conventions. String name; String rollNo; } I have rest API's that return the above bean class. Of course this is a personal project, and something I guarantee would experience a lot of push back at work. Every URI MUST follow the General Rules except for the camelCase rule. 0 and Razor Pages (no explicit controller necessary), so all that's needed is: Enable Lowercase Urls: services. 1. Add(typeof(ValidateModelAttribute))) . The name "camel case" comes from the hump-like appearance of the capital letters. def to_lower_camel (name: str) -> str: """ Converts a snake_case string to lowerCamelCase """ upper = "". Mar 29, 2017 · I want to support both snake_case and camelCase in the json interface of my rest API. The reason for it was fact that we had to start developing React application as a SPA of our system. required: Returns: Type Dec 1, 2014 · Unlike camel case, there are very few contexts where snake case is not usable. snake case or camel case) to see the full conversion table below. camelCase, it's snake vs. If you follow a convention that class names should start with an upper case letter it looks nicer with ClassName than Class_name. Here are three simple examples of code in the snake case naming convention: INTEREST_RATE; increase_count_by_one; FIND_ALL_USERS; Snake case vs. The solution is; services. This can be especially helpful when reading long strings of text. When multiple words are used to form a variable, camel case joins those words together, without any white space, and delineates the start of each new word with a capital letter. Camel case, on the other hand, can be harder to read because the lack of separators can make it difficult to quickly parse a variable name. Unfortunately, when I use the default fastAPI serialiser I always get back a camelCase Oct 13, 2015 · That's one of the reasons why I might stop following the camel-case convention in the frontend and go back to snake-case everywhere since it's less cognitive overhead for me if there is only one style throughout this project's codebase. I would Jan 30, 2020 · snake_case request/respose. I had to move all the JSON data format from camelCase to snake_case. camelCase/PascalCase conversion on path parameters #1856; Suggest a fix. Only the first word in the chain starts with a small first letter. Main reason : To keep compatibility with the existing code, since they have done it with C also. This strategy follows these steps to convert JSON keys to camel-case: Capitalize each word that follows an underscore. When I convert from json to model and vise-versa, the names obviously do not match up. Or you can annotate the attributes as below in case you map only a single class. @JsonProperty ("some_text") private String someText; OR annotate the entity as below. Oct 18, 2022 · What's the actual output vs expected output? [Optional] Sponsorship to speed up the bug fix or feature request ; Description. 479. In latest version there is no default issue with "BaseController" but same issue with "ODataController". Jun 10, 2020 · 介紹幾種常見的命名規則. This makes the multi-word names easier to read. Additionally, Camel case can help to make words stand out, which can be useful for emphasis or for visual appeal. Convert variables from camel Dec 14, 2018 · [BUG][Python-Flask] Unit tests: Missing snake_case vs. 7, the constant was named: We would like to show you a description here but the site won’t allow us. 2 or later. For example, we defined pet_type in snake_case , however, generated codes expect CamelCase . class) Jul 27, 2023 · スネークケース (Snake Case) スネークケースは、複数の単語をアンダースコア(_)で結びつける表記法です。全ての文字は小文字で書かれます。例えば、first_nameやis_availableのようになります。この表記法は、PythonやRubyなどのプログラミング言語でよく使用され strcase is a go package for converting string case to various cases (e. The benefit is that it shares the same configuration in application. But at the current project, I was asked to change my ASP Web API application data processing format. Pascal case (ex: PascalCase) is mainly reserved for class names, interfaces, and namespaces. 1. I know there are many ways of making Jackson to use snake_case: Annotating properties individually: @JsonProperty("first_name") Annotating classes with: @JsonNaming(PropertyNamingStrategy. LowercaseUrls = true); Create a file named Dashboard-Settings. In the snake case, compound words are separated by underscores. Itoolkit recommends using camelCase by default for JSON keys as it provides better readability in most cases. properties: serviceResponseInternal: type: object. An example of snake case of the variable snake case var is snake Jun 6, 2020 · The middleware will convert them to camelCase and if at any point you decide to change the API to snake case response format again, you can just disable the middleware. NET world is camel case. Jan 22, 2024 · In the realm of Python API development, one often encounters a peculiar yet common challenge: aligning Python’s snake_case naming convention with the CamelCase convention prevalent in JSON. My understanding is that there is a convention to use snake_case fields in the database, and Laravel defaults to that style when it makes assumptions about things like relationships, so I've been using snake case. That results in null value inside our api process. The most important thing here is that you stay consistent. Jul 22, 2023 · In programming, the most common case styles are: Camel case. I have a data object in snake_case and a database schema which uses snake_case. Now I am migrating to . We are adding another external api so client can call it. For example, we do this with data stored in Postgres that is pulled by Domo. But, the same configuration is working if I change the project from spring Jul 13, 2020 · This is a bit of a pedantic (breaking) issue that I found while writing up the OpenAPI spec: due to the naming convention of Postgres (snake_case), most of the fields in the API are also snake_case. Camel case is the naming convention applied by Java and Kotlin. String to Date) The basic idea is that you setup api middleware to parse camelCase to snake_case on request bodies and parse snake_case to camelCase on response bodies. tar. See Edit menu or use ⇧ + ⌥ + U / Shift + Alt + U. property-naming-strategy=SNAKE_CASE naming strategy but unfortunately, I am getting camelCase in swagger documentation. swagger-codegen generate -l html2 query parameter style (snake_case vs camelCase) is incosistent between actual parameters and what is shown in curl. Is there a good reason not use camelCase instead of snake_case? I think a source of problems might be that identifiers tend to "leak" onto the filesystem (like when you name a file after an identifier), and Pascal case, Kebab case and inversions. . by underscores) instead of camel cased. javascript / React). Advantages of snake case (in my opinion): There is more separation between the words which makes them very easy to read. Underscores seem to be approaching the end of their lifecycle, alongside so many C++ repositories that adhere to the convention. Although Laravel is just the API layer in our system that talks to a Javascript frontend and many other applications. Hibernate 5. from fooBar to fooBar ), so I tried to use the @Column . This is used for class names in Python. spinal-case is a variant of snake case which uses hyphens “-” to separate words. jackson. That said, I find camel case easier to write Especially the bigger frameworks like Zend and Symfony build up on camelCase also when they don't prohibit underscore, but all the core function is camelCase. export const test = { a_b: 1, // OK. But they can also come in handy in other places – for example, you could use SQL is case-insensitive by default; so, snake_case is a widely used convention. It is commonly used in programming languages such as JavaScript, Python, and Ruby. This is causing issues for Mar 31, 2020 · There is maybe a more reliable solution I don't know. CamelCase; 8. Aug 29, 2018 · Changing rest output in JSON format in which the keys are present in snake case and I need to convert it to camel case. So I changed it to use PascalCase by adding below code in Startup. js minus the Java and emojis View on GitHub Download . 因為單字的開頭大寫，看起來像是駝峰 XD. Some suggestions (feel free for other suggestions ;-)): Define **kwargs as argument in the controllers and get the (non-pythonic) argument via kwargs['remoteId']. This would introduced some new layers to system and all of it would be little complicated than other solutions. Functions that operate on structs: classic C style: gtk_widget_show(), tracking_order_process(). openapi generator will build classes with PascalCase property names, which will be thrown by the api when used Hope it helps ! If not provided, using the version from the OpenAPI specification file. properties file to convert Snake case to camel case. camelcase module contains functions for converting camelCase or CamelCase strings to snake_case, and vice versa: These functions are used by APIModel to ensure snake_case can be used in your python code, and camelCase attributes in external JSON. Parameters: Name Type Description Default; camel: str: The string to convert. I am developing a React Web app in which I call my API endpoint and it gives me response like this Mar 19, 2016 · 3. . On the plus side, Camel case makes words easier to read, since there are no sharp breaks between the letters. Jan 10, 2020 · 3. Advantages of camel case (in my opinion): The names are shorter. Struct names and typedef's in camelcase: GtkWidget, TrackingOrder. In application. openapi-generator-cli:v4. Net Web API, 2 input and output parameter case was PascalCase. OpenAPI CodeGen OpenAPI 3. Jan 4, 2022 · After many tries I solved this problem. Apr 30, 2021 · Camel case and snake case stand at opposite ends of the variable naming convention spectrum. The documentation is saying: The names of the OpenAPI fields follow snake_case naming convention instead of OpenAPI’s (and JSON Schema’s) camelCase convention. from fooBar to foo_bar). snake_case snake_case is as simple as replacing all spaces with a "_" and lowercasing all the words. This rule has an object option: "properties": "always" (default) enforces camelcase style for property names 12. That said, I follow the GTK+ coding convention, which can be summarized as follows: All macros and constants in caps: MAX_BUFFER_SIZE, TRACKING_ID_PREFIX. Use snake_case for any api data. All the consumers of our API have a strong preference for camel cased variables (e. Snakeify Snake Case Converter. Dec 9, 2022 · First, consider readability. JSON Schema Draft 4 Mar 8, 2016 · 2. It'd be more idiomatic to use camelCase. Jackson uses camelCase by default. The trick is to use camel case and use only two words to describe your identifier. Convert a PascalCase, camelCase, or kebab-case string to snake_case. All you need to do is to use the hibernate-types open-source project. May 2, 2022 · I'm using Python to interact with a web api, where the keys in the json responses are in camelCase. 1 API with Swashbuckle. lower + upper [1:] class AppBaseModel (BaseModel): """ Pydantic base model for applications This class is used to define the base model for all schema that we use in Linting Rules - OpenAPI V3 - Response GET 200 Media Type. If you are planning on contributing this code to, say, an open-source software project in the future, try to abide by their coding conventions. When it comes to naming resources in a program, there are 3 main types of case conventions: CamelCase, snake_case, and spinal-case. I am trying to generate python client from a swagger yaml file. Here are some examples of snake case: first_name and last Oct 14, 2022 · My current asp net core project is supporting only camel case. zip Download . Despite requiring a bit more boilerplate code, this has many benefits, including allowing the business logic to evolve separately from the API schema. SnakeCaseStrategy. In general, from what I've seen classes are upper camel cased (with upper case first), methods start with lower case, and variables I've seen all over the place (some upper camel cased, some lower camel cased with first letter lower (as mentioned in previous answers, this is the norm), some even with Hungarian notation). I have just one additional warning if you’ve missed it in the code example above. Switch easily between kebab-case, SNAKE_CASE, PascalCase, camelCase, snake_case or space case. To make Postgres operations easier, use lower_snake. It depends on your Feb 6, 2022 · 1. It's possible to snake_case and mix camelCase and PascalCase but imo, that ultimately defeats the purpose. Net Core 3. Avoiding ambiguity is critical. Nov 26, 2022 · キャメルケース( camelCase ) currentUserItem のように書きます。 先頭の要素語( current)は小文字で書き始めます。 先頭以外の要素語( user item)の最初を大文字で書き始めます。 ローワーキャメルケースともいいます。 パスカルケース( PascalCase ) Jul 27, 2016 · In Golang, any variable (or a function) with an identifier starting with an upper-case letter (example, CamelCase) is made public (accessible) to all other packages in your program, whereas those starting with a lower-case letter (example, camelCase) is not accessible to any package except the one it is being declared in. Camel Case 因為單字的開頭大寫，看起來像是駝峰 XD 可以進一步細分為 upper camel case ( BrowserStack) 與 lower camel case ( iPhone )，差別在於開頭第一個字是否為大寫．. type PascalToCamelCase<S extends string> = Uncapitalize<S>. Examples: snake_case, current_user, add_attribute_to_group, etc. This is primarily used for function and variable names. 另外，因為 upper camel case 又稱為 Pascal Case ，因此有部分人泛指 Camel Case 為 Oct 6, 2021 · I have a Java POJO class. Working with legacy systems that require it. description = "This is a sample api with Open API"), servers = { @Server(url = "/", description = "Default URL")}) But the request body attribute is coming in camel case. If you need to bind to an API, etc, you can create a view with “CamelCase” aliases. Generated codes work well in most, however, not with discriminator. Example s := "AnyKind of_string" Jan 3, 2012 · I'm trying to build an API wrapper gem, and having issues with converting hash keys to a more Rubyish format from the JSON the API returns. If I add the below, request body attribute is coming in snake case. The words are written without any separators between words. You need to do that for camelCase as well, but I can comfortably hold down SHIFT with the pinky and type any letter - but since the underscore key is right next to the SHIFT key, pressing both at the same time is rather awkward and interrupts the flow of typing. The first way, you can add attribute like: [FromQuery(Name = "account_number")]. AddJsonOptions(o => {. properties file, I have configured: spring. Instead, a hyphen ( - ) SHOULD be used to delimit combined words (kebab-case). Sample Example: firstName. This solves the case problem (api might use snake case, but your js/python/whatever application might have linting rules that enforce snake case or something else) but also can convert types for you automatically (ie. So you can set spring. The matter is important as the openapi definition serves as a basis for generating api clients. For example, in my current project the YAML file contains default values for Python attributes. 202. Postgres folds identifiers to lowercase, unless you double-quote your identifiers. In the camel case, compound words start with a capital first letter. o. I set rule camelcase with 'camelcase': ["error", {properties: "never"}], as it mentioned in docs. Snakeify Snake Case Converter is a Visual Studio Code extension that allows you to convert variables from camelCase to snake_case directly within your code editor. join (word. g. You can see a lot of underscore solutions in older systems, like the old Typo3 branch (Typo3 Neo changed to camelCase, too). If your DB engine can't support the SQL standard, that's its problem. Camel Case. I am using below configs. property-naming-strategy=SNAKE_CASE or whatever there, and it's consistent across the entire application including RestTemplate. This… I learned about the camel case, thought it was awesome to write with and found it really hard to switch back to snake, and I’ve seen that snake case is easier to read, but I found that camel case if optimized properly was very readable. we will see snake-cased request/response body in the OpenAPI documentation as we expected. Linting Rules - OpenAPI V3 - Response GET 200 Status Code. But no matter if I use snake all other dependencies I am using will Jul 6, 2022 · Hey folks! I’m using OpenApiSpex to generate documentation and validate schemas. Jan 18, 2012 · I think this question causes tension because The Specification says to use underscores, but most professional coders use camel case every day (in various languages other than python). If you are incorporating other people's code into your project, stick with whatever method they were using. Some JSON APIs adopt snake-case; use this strategy when you encounter such an API. On the other hand, snake case is a convention that underscores separate words, such as “ flyway_migrator “. Using snake case database fields is making everything more complicated. Code as follows. AddControllers(opt => opt. The fastapi_restful. 先日一通り技術検証が完了したので振り返りを行ったところ、クライアント側のチームから「 APIレスポンスをスネークケースからキャメル The options I have in front of me it seems are:- Have mixed usage: camelCase for variables and Vue things like computed, methods, props etc. Filters. This is a valid Javascript literal: This isn't: The latter must be: That's all it's talking about; the preceding paragraph referred to "dash-separated path names" and followed by saying you shouldn't use dashes in JSON. eg: public class Student {. Snake case. 0: nullSafeAdditionalProps: Set to make additional properties types declare that their indexer may return undefined: false: paramNaming: Naming convention for parameters: 'camelCase', 'PascalCase', 'snake_case' and 'original', which keeps the original name: camelCase Sep 29, 2014 · 1. Jun 2, 2023 · Consider underscore_case when: -Aligning with SQL database conventions. Mar 11, 2021 · snake_case is fundamentally more human readable than camelCase because the words are physically separated. Provide pythonic_params=True to the connexion/Flask app. Use the standard dictated by the surrounding software. 12+, you can configure the ObjectMapper to convert camel case to names with an underscore: objectMapper. In Jackson 2. I am using NewtonSoft. gs hs ia ca wk yk gz cq ay jl