Json schema enum with values An example: Learn to Define constant values in JSON Schema. But what if you want to define a single constant value for a property?. JSON schema draft-04: extending for specific "enum" value. API. The JSON Schema keywords were primarily designed for the JSON data model. Using enum. For example, suppose we have a schema representing a customer. JSON Schema. The "enum" keyword restricts JSON instances to have certain values specified in an array following the keyword. I'm not sure about the combination constraints you have but the regex could look like ^{{[123]}}(_{{[123]}})*$ if you want to support arbitrary combinations of those {{1}}, {{2}}, {{3}}. JSON Schema defines validation keywords sectioned by how they will apply to an instance. I declared Enum in JSON schema as below. Similarly, you can restrict the values of array items using the enum keyword. e. In json schema, how to define an enum with description of each elements in the enum? 5. Enum with a single value should also give you a const type, and enums can be build dynamically. Try using enum keyword. schema The value of the keyword should be a JSON Schema. If you change "items" (in your schema) to be simply a schema (not an array of schemas), then it will validate all items the same way. 1. 12. For this enum: You may build your own meta-schema the same way any valid JSON-schema can be validated against the draft-04 meta-schema. x supports the enum (enumerated list) keyword for all schemaObject object properties, including parameters, request bodies, and responses. Consider the schema: { "enum": ["Two", 2, true, null] } Then the following JSON validates against the Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Another brute-force approach would be to have n complete lists of enum values, one with starting capital letters, other all capital letters, etc. the interface is as follows (you can copy it Unions. Unlike JSON Schema, JTD does not allow defining enum with values of any other type than string. Currently, we have to struggle a lot to keep the description in sync with the actual lists of enum values, and see a lot of problems caused by that (e. some values are missing, some exposed by mistake, some have spelling Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company This worked for me. Constant Values. I wanted to prevent a json filed from allowing null as a valid value for it. I want to do something like this: "TAG": { "type": "enum" I have a . Is there a way to get the enum as a string in my json without having to create a custom JavaScriptConverter?Perhaps there's an attribute that I could decorate the enum Describe the bug Using @Schema(allowableValues = {}] to declare the list of values for an enum adds to the generated list, rather than replacing it. This enum field is exposed as a getter using the @Getter The boolean keywords readOnly and writeOnly are typically used in an API context. Ultimately, it doesn't really matter. Learn. Since the release of Helm 3, you can create a file called values. This is a flags-enabled enumeration, so values that support multiple types can be bit-wise OR’d | together. 4. Json. Also, How do you reference other property values in JSON schema? 0. 2. But following will helpful for others, who wants to use enum values with Joi String validation : function validateBody(bodyPayload) joi validation schema : value could be of several length possibles. Skip to the content. X. Is it possible to have objects as members of enum. Context Serializing enum values in JSON (C#) [duplicate] Ask Question Asked 13 years, 2 months ago. It could be used to indicate that a PUT request that changes a value would result in a 400 Bad Request response. Taking your sample, you would add the following constraints to general valid JSON-schemas: I have a class that contains an enum property, and upon serializing the object using JavaScriptSerializer, my json result contains the integer value of the enumeration rather than its string "name". Share Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company At JSON Schema, we value docs contributions as much as every other type of contribution! Edit this page on Github. Given classes. But during validation, the API is not validating when i submit At JSON Schema, we value docs contributions as much as every other type of contribution! Edit this page on Github. invalid: 3, 4 # oneOf. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The serializer / deserializer solution pointed out by @xbakesx is an excellent one if you wish to completely decouple your enum class from its JSON representation. Hot Network Questions To convert a json-schema into a form requires more data than fits in the specification of json-schema, but there are ways to tweak it within the specification. You could use oneOf instead of enum, and give each oneOf object a title. Let us assume the following schema: from jsonschema import validate schema = { "type&quo Given a Spring Boot project that uses the springdoc-openapi library to expose an OpenAPI (Swagger) endpoint documenting the Spring MVC controller endpoints of the project. Namespace: Json. Can be a number between 0 (inclusive) and 360 (exclusive), or null, so the following inputs are OK: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I noticed the following: Reusable enum types in json schema, which talks about defining a reusable enum type in JSON schema. The data is valid if it is invalid according to this schema. JSON Forms supports different multiple-choice options. So leveraging on the example by @Stanley the following is a p. deserialize json with array of enum. json (result); } We have a Feature Request for adding support to allow arbitrary enum values here: #4954. 2. Want the below json to be validated as false, as the field stats as value as null. Currently, I am working on validation part using com. WRITE_ENUMS_USING_TO_STRING); How to validate an enum value in a json schema validation? 5. I want to share with you what I have discovered today I was trying to imagine how we could extend JSON Schema specification in order to JSON Schema - how to reference enum value and combine multiple sets of enums to one property? 0. The data is valid if it matches exactly one JSON Schema from this array. In your case, JSON would look like: I want to define a property as an enum. 0. How can I achieve that. ; Within those properties you're defining name as an attribute that then holds other json schema objects. It is also possible for a 3rd-party to implement this as a JSON Schema extension vocabulary. Range; At JSON Schema, we value docs contributions as much as every other type of contribution! Edit this page on Github. 5. This is why lists of tuples are proposed instead. Consider, you want to define a property companyName with a constant value MyCompany. The enum keyword in JSON Schema is defined as: The value of this keyword MUST be an array. Enumerates the schema value types. In the output (JSON), i have object that follow key/name syntax rule. An enum in any language represents a set of possible values but in an object it only takes 1 value. You can use the enum keyword to define the allowed values. Chapter 2: Primitive Types. Ask questions, find answers and collaborate at work with Stack Overflow for Teams. It could be case-insensitive, or you could have a secondary namedValuesCaseInsensitive that takes a boolean. Severity: type: integer oneOf: - title: HIGH const: 2 description: An urgent problem - Update TS 1. Ask the community on Slack. 1 { 2 "enum": The value of this keyword MUST be a valid JSON Schema. json-schema - More info. But the list must contain at least 4 items with specific field values. The value Let's say in your case userType is the value that is case insensitive and is a set of values only (Customer, customer, CUSTOMER). These specs follow the design principle of reducing repeated elements. 1 Web API which uses NSwag to generate its Swagger Json. You can override some elements of this by so when i want to put this enum in a Json Object, i ask the enum. The OpenAPI Specification (OAS) version 3. schema: {type: "number", not: {minimum: 3}} valid: 1, 2. Every time an instance is validated against a schema, we pull the enum values from database, and then compile the schema. Open Collective. – How to validate an enum value in a json schema validation? 2. #Enum form. How do you define required values in a list? I have a list of objects with a property which is an enum with 10 options. It must be an array with at least one element, where each element is unique. These examples cover a wide range of scenarios, and each example Enumerated Array Items. An array instance is valid against "contains" if at least one of its elements is valid against the given schema. The following is an example for validating Enumerated Values. Child models are referenced with ref to avoid unnecessarily repeating model definitions. JSON Schemas also support keywords that may apply to any JSON type. In draft5 (in progress) a "switch" statement has been proposed, which will allow to express alternatives in a more explicit way. An object Foo can have any amount of properties that must be either an enum or another instance of Foo. The enum keyword means "enumerate", and is used to list possible values of a field. JSON Schema Overview Repositories Discussions Projects Packages People List of objects with I am using the jsonschema package in python to validate my JSONs. I have a response model as such - public class LoginResponse { public LoginResult LoginResult { get; set; } } public enum LoginResult { AwaitingEmailConfirmation = 0, Locked = 1, Failed = 2, Success = 3 } Which generates the Swagger JSON of - Requesting help with JSON Schema validation, below is sample JSON and Schema. Annotation key words are used to denote information, however they have no validation requirements. 10. I am building an API which contains a heading attribute. This must be enabled using the enableMetaEnum config option. Arrays are not validated in JSON Schema. Here, there is only one possible value: JSON boolean false. Since this deals with lookup from the value of instance of json schema and not JSON Schema Keywords. Docs Learn Implementations Blog Specification. There might exist a schema format you can use that allows this, I just don't recall knowing one, for example not even JDT allows this. When you create a JSON Schema, you can specify what values are allowed in a particular field. Looks like I need to build a JSON schema validator class and passing the json & schema to validate. Annotations; Draft 2020-12; exclusiveMaximum. fge. You don't need anything special in order to define it: { "_info":{"type":"object"} } JSON schema example demonstrating documentation of enum values using the custom meta:enum keyword. 6. JSON Schema to require a value NOT be present. The value of this keyword MUST be a valid JSON Schema. Learn how to contribute. contains. Ask the community on GitHub. In this usage, the index (or location) of each item is meaningful as to how the value is interpreted. They sometimes misunderstand and set the field to "anonymous" if their user isn't logged in, etc. JSON Schema - Allow only specific enum values for a property and reject the rest. JSON Schema enum does not affect validation. A JSON Pointer describes a slash-separated path to traverse the keys in the objects in the document. Hot Network Questions This document specifies a vocabulary for JSON Schema to describe the meaning of JSON documents, provide hints for user interfaces working with JSON data, and to make enum. reason: 'value was not found in enum', consideredValue: 'Germany'}]}]}]}} 3. The specification says that enum may include null. I also looked at "oneOf" and having two sub-schemas, one where 'efield' had the first 3 enums and x was required, and the other where efield had the other 9 enums and y required, but validation would complain about the Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company An enum in any language represents a set of possible values but in an object it only takes 1 value. Similarly, you can use this functionality to prevent human error, such as typos, when inserting data into a collection. As such, you must include the boolean values true and false in your enum of valid values. 1 uses the latest JSON Schema, and the recommended way to annotate individual enum values in JSON Schema is to use oneOf+const instead of enum. Neither are perfect for readability, but I think enum is better for two reasons. For example if I have an array where the values could be "apple", "orange" or "banana", but "apple" and "orange" would never appear together. schema. Example OpenAPI 3. Insert a valid document. Can not find any tutorials or examples that actually explain the use of RegEx in a JSON schema. JSON Schema - how to reference enum value and combine multiple sets of enums to one property? 5. Here is my current sample, and it's output. Use json-schema to require or disallow properties based on another property value? 1. In this page, you will find examples illustrating different use cases to help you get the most out of your JSON Schemas. OpenAPI 3. I will check this. Chapter 4: Arrays. org" by inputting the JSON schema and generating the output and found thay it is not generating correctly. According to this draft specification:. It has a required member enum and optional members nullable and metadata, no other members are allowed. Mapping a certain JSON value to Enum value C#. This question also relates to multiple issues already mentioned in github issues of json-schema spec. ; In the second branch of your schema you defined otherProperty3 but in your sample that property is Hi’ I’m stuck with the following issue: I have an API field that is an enum, but it can also be null: fruit enum┃null Allowed: apple┃orange┃pear┃null I need to create a JSON schema validation for this field to account for all of the possible cases. Tuple validation: a sequence of fixed length where each item may have a different schema. (exe|EXE)$". 02, [ 3, "helloworld" ] ] } We'd like enums with arbitrary values. Examples don't annotate them, just configure your ObjectMapper instance: private ObjectMapper createObjectMapper() { final ObjectMapper mapper = new ObjectMapper(); // enable toString method of enums to return the value to be mapped mapper. I would have assumed USING this reusable enum type would be trivial, simply specifying (in this case) the value of I have a json schema which describes a fairly complex API querying syntax. JOI validation for a string with json as I use JSON Schema to validate app objects against some schema for testing. The enum's non arbitrary values provide useful Properties based on enum value in JSON Schema. Enum member to JSON and then decode it as the same enum member (rather than simply the enum member's value attribute), you can do so by writing a custom JSONEncoder class, and a decoding function to pass as the object_hook argument to json. Net - Deserialized to an Enum in c#. Values I have a json object that can contain any number of nested objects with certain specification, additionalProperties can have the following values with different meanings: "additionalProperties": JSON schema which allows either an object or an array of those objects. There are some design patterns on how to implement more complex enum values, but they're all custom built rather than Reference documentation for JSON Schema 2020-12. That said, the most common approach I've seen is to use enum. This is enabled when the value of "items" is an array, and it matches schemas to specific positions in the array. 11. Using enum requires only one because type is implied by the value in the array. Hot Network Questions This is because you have (accidentally) used "tuple typing". loads(): dependentRequired. Both will work and both are reasonable. I can set default in jsonschema. Maybe what's needed is a new keyword (vocab suggestion) such as namedValues that only accepts strings. Have an item named progBinaryName whose value should adhrere to this RegEx string "^[A-Za-z0-9 -_]+_Prog\\. Using pattern requires two lines to express. allowed values for "inputDateTimeFormat" is a valid date time format so rule OK. The fruits property contains an array of strings, while the vegetables property contains an array of objects, each adhering to the "veggie" schema definition. Try Teams for free Explore Teams Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog A correct draft4 validator will find the enum value and will try to validate against that "subschema" in the Json-Schema tree. Steps. github. Getting Started Step-By-Step Conventions on Install Newtonsoft. Let's add a new Define numbers and null values as enumerated values in JSON Schema. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'm trying to create json schema for a document where field values in some object should validate against a enum defined in another object in the same document. Properties based on enum value in JSON Schema. Can't deserialize JSON to enum. I have a JSON schema that I am trying to make a C# class out of. Schema. The dependentRequired keyword conditionally requires that certain properties must be present if a given property is present in an object. This array SHOULD have at least one element. I have an angular project in which I'm using JSON Schema Form (angular6-json-schema-form) to build forms in JSON schema. How to Is there a way to enable a JSON schema property to be either a number or null?. LinkedIn. { 'userId': 123, 'userType': CUSTOMER } Information about JSON: Were userId is an integer and the userType is enum['Customer','Admin','Guest'] So the issue is that I want to validate the JSON data from the JSON schema based on : If userId is present then userType is required. Here the itemTypes and itemCounts will be common but not the values inside them (food, NA, electrical) which will be keep changing but the will be in the format : Map<String, Integer> How do I define Json Schema for such generic structure ? I tried : Pydantic is configured to export json schema compliant with the following specifications: JSON Schema Core, JSON Schema Validation, OpenAPI. JSON Schema object properties defined by enum. The values will be fetched from a database and will be dynamic in nature. Alternatively, if you prefer a self-contained solution, an implementation based on @JsonCreator and @JsonValue annotations would be more convenient. public class Foo { public Options Bar { get; set; } } public enum Options { Option1, Option2 } Schema would be generated as follows, no need to decorate classes/properties with [JsonConverter(typeof(StringEnumConverter))] attribute. How to serialize list of enum using their string value. This example introduces the enum validation keyword which is used with an array of values that includes an integer (42), a boolean (true), a string ("hello"), The enum keyword is used to restrict a value to a fixed set of values. The OAS defines an enum according to the JSON Schema Specification. Tried using the keyword not, but no luck. The enum keyword is used to restrict a value to a fixed set of values. why my json schema let a wrong value pass? 1. How to require a property B when a boolean property A is true. You've got the basic idea of using enum to separate what's matching, but there are a couple of mistakes here: Json schema arrays don't have properties, they have items. If type does not also include null, although the validation check for the enum key word will pass, the validation check for the type key word will mean the instance fails overall It seems like JSON Schema is pretty much in its infancy at the moment, finding any kind of documentation is hard! >< I think what is really required is a way for dependencies to manipulate the original properties of the schema they are defined within - this would allow overriding default values & requirements via dependencies as well as I'm trying to construct a JSON schema for my use case where I have the enumerations for a string in a separate file and want to refer that from my schema. How to validate an enum value in a json schema validation? 0. if possible, let me know how you are validating it. Let's take a look the following example: { "type": "enum" lists the possible values for the JSON node at this point, you may have any valid JSON fragment in an enum: { "enum": [ 4, null, false, 2. One of the enums in the project uses @JsonValue from Jackson on a field to change the JSON representation of the enum. If you still want to use Literal, you can also build it dynamically: Literal[cls. The following is an example for validating According to json-schema documentation, the enumerated values of an array must be included in the "items" field: { "type": "array", "items": { "type": "string", "enum": ["one", "two", In this page, you will find miscellaneous examples illustrating different use cases to help you get the most out of your JSON Schemas. Schema package via NuGet package manager, then you can output enums as strings out-of-the-box. The default key word in JSON Schema is an annotation key word. SchemaValueType Enum. { "test": bla bla bla } This test can be a number between 0 and 120 or an empty string. Enums may be of any JSON value, including objects and arrays. Still Need Help? Learning JSON Schema is often confusing, but don't worry, we are here to help!. This surprised me; as I would have expected the presence of this annotation to closest to what you would want, is a "first level" object of a schema and applies to the schema itself. The enum keyword is used to restrict a value to a fixed set of values. 4 you can define payloads with different schema formats (schemaFormat), by default this is an AsyncAPI Schema Object which is a superset of JSON Schema Draft 7. See also #2542. As base64-encoded binaries are simply strings, they can be used with these keywords in the normal way. jsonschema. In could be used to indicate you can set a value with a What I'm trying to accomplish in json-schema: when the property enabled is true, this is a specific variant of the Enum strategy spelled out in this answer. In addition to identifying a schema document, you can also identify subschemas. JSON Schema: Enum not working in an array of objects. Let's add a new property Trying to write a JSON schema that uses RegEx to validate a value of an item. NET deserializes an enum value that expects char as an integer which is an ASCII value of a char. JSON Schema Array Validation Woes Using oneOf. Due ”enum” values supporting any JSON type, it is not possible to have a JSON object mapping values to names. – To convert a json-schema into a form requires more data than fits in the specification of json-schema, but there are ways to tweak it within the specification. js. My problem is that i am serializing the content of map to JSON. Else, you could add a property enumNames, being a map of enum value to name. enum. We compile the schema for every request, which is a huge overhead (of course this can be worked around by caching, but it is sub-optimal). if anyone is wondering "why" I'm trying to define the properties with an enum, it is because the enum is shared in various parts of my json schema. I managed to figure it out using draft-06. It is possible to configure a single select, where only one option can be selected, or a multi select, where several options can be selected. Unions, as mentioned above, are represented using JSON arrays. (Note that when a default value is specified for a record field whose type is a union, the type of the default value must match the first element of the union. { "stats": "null" } Unfortunatly, this is not possible using pure JSON Schema. So far I’ve seen the API reject schemas with enum values containing double-quotes and newlines. You can automate the creation of this json-schema easily. json which allows you to easily set value requirements and constraints in a single location. jsonschema enum values conditional on another enum value. A Tour of JSON Schema, Learn JSON Schema by Examples. Apparently a proposal related to solving such issue is being tracked actively here. type Type = "NEW" | "OLD"; const Type = { NEW: "NEW" as Type, OLD: "OLD" as Type } interface Thing { type: Type } let How to validate an enum value in a json schema validation? 0. My questions are: * Why don't I get the char only by Serializing? Is it Default values are supported for the JSON Schema properties of type string, integer, number and boolean; for enum properties; for properties with format of utc-millisec or date-time; for arrays of any of these types. The most common way to do that is to use a JSON Pointer in the URI fragment that points to the subschema. Previously, We used enum to restrict the values of a string property. Slack. Draft-7 (which is current) says this: There are no restrictions In JSON an object is already a collection of key-value pairs. So I would suggest keeping the enum value as customer[lowercase] and before your JSON is going to schema validator preprocess it to put all the values in the specific key as lowercase value. With AsyncAPI 2. As mentioned in the comments, combining values from enum isn't possible. Miscellaneous Examples; Enumerated Values; Draft 2020-12; examples. JSON Schema's examples, enum, and const keywords take literal values. Share. CONSTANT mapped to this value. The value of then must be a schema so if you were to take the value of then on it's own, you'll see it doesn't add any validation cinstraints, because you need to wrap "257" within properties. I have generated artifacts using schema without any issues. At JSON Schema, we value docs contributions as much as every other type of contribution! Edit this page on Github. I just didn't know if there was a way to make the class mirror the schema information of the attribute being enum. Sample Schema: { Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company It also needs to be noted that the opening comment assumes string-only enums. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company If you want to encode an arbitrary enum. This way you can specify both custom names (title) and descriptions for enum values. Any help/info would be GREATLY appreciated! Thanks, D. The enum keyword specifies a validation constraint for an instance, defining a set of permissible values. Lesson . I have a JSON object like this. Json. I also looked at "oneOf" and having two sub-schemas, one where 'efield' had the first 3 enums and x was required, and the other where efield had the other 9 enums and y required, but validation would complain about the enums, e. enable(SerializationFeature. Note: Using the type keyword along the enum keyword is considered an anti-pattern, as enum constraints instances tighter than type. How to validate an enum value in a json schema validation? 8. assuming that the enum values are either A or B, a valid object might look like. If you don't have their credit card number, a billing address JSON Pointer. What is the full set of allowed characters? OpenAI Developer Forum Limitations on enum values in Structured Outputs. JSON Schema draft 4 boolean value defines required fields. UI Generation. For example, ["null", "string"] declares a schema which may be either a null or string. Improve this answer. s. JSON schema AND/OR for array enum. 1. I've debugged the schema by first testing your if condition evaluation by making then equal false. Enums in OpenAPI. Please feel free to add a comment to the Feature Request so that we can prioritise it. This file provides similar capabilities as the The data example shows the usage of arrays. other explicit strings) other than just the pattern. Instead you can try using pattern with a regex. How to constraint values of an object in JSON schema? 0. Dynamically generating JSON Schema with `const` properties. A few of the properties are pattern matched but also need to accept other values (i. enum is under the Validation Keywords for Any Instance Type section. Correct way to define json schema with enum and pattern. Define numbers and null values as enumerated values in JSON Schema. The enum keyword also allows us have different types in the list of allowed values. But your schema would then This document specifies a vocabulary for JSON Schema to describe the meaning of JSON documents, provide hints for user interfaces working with JSON data, and to make assertions about what a valid document must look like. Each example comes with accompanying JSON data To define the enumerated values in JSON Schema, use the enum keyword. __name__] # Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I made an LLM call with structured outputs asking for a JSON with one key language which can only take certain values: LLM call parameters I used the following system/user messages: Messages I expected the language to be one of the specified values in my enum, but I actually received swedish !!! It’s not one of the language I specified in the A Tour of JSON Schema, Learn JSON Schema by Examples. 5: Enumerated Array Items Enumerated Array Items. More specifically, in the example be How to validate an enum value in a json schema validation? 0. with table of Since a JSON Schema enum can be of any type, TypeScript enums are not entirely compatible. The use case came up today because we validate data where right now, we have an optional field called loginId where our users are supposed to set the field if their users are logged in and omit the field if their users aren't logged in. The list of JSON values in an enum is the list of possible values for the currently validated value. The key is created from map key, and the name from the value. Therefore, I would like to restrict the possible values of the "axis" element to ["x", "y", "z"]. I can always set the property to a string and just do validation in my code to make sure the value is one in the "enum" the schema specifies. Single Select A single select can be achieved by using an enum or an oneOf in the JSON schema. This means it is applicable to any instance type, including booleans. CONSTANT to give me it's value, and when i have this value (from Json), i can request from the enum to give me the proper enum. In JSON is the same, you can define a set of values in a JSON Schema, but then in JSON data it takes only one of those values. # Construct the json_schema with the current test_value as the enum json_schema = { "name": "ascii_test" So, I'm trying to define a schema for a set of axis constraints. I want to validate this JSON object using a JSON schema like thi Our use-case is that we need to perform enum validation in the schema. Thus, for unions containing “null”, the “null” is The created Json text contains this: "MyEnumValue":82 So JSON. * api. Right now, I'm using "json-schema-faker. 3. If you have their credit card number, you also want to ensure you have a billing address. In general, this issue seems to be super-important for proper adoption of JSON Schema and OpenAPI formats by the documentation communities. Let's say you want to restrict the performanceRating to only a few specific values. The long answer is, if you use a JSON parser which supports C++-style comments (which are normally not legal in JSON) then you may add comments to describe your enum values. So far, we have used the enum keyword to define a list of allowed values for a property. Enumerated values. e. The value of this keyword MUST be an array. I don't know as JSON schema supports this easily (think multiple enums with oneOf's), except as arbitrary values (type string). However, unencoded binary cannot be embedded in JSON or YAML as a literal value. I have a senior were I have to validate the schema for below json data. These examples cover a wide range of scenarios, to another schema defined at a different location which represents a geographical location with latitude and longitude values. Here is my Prisma Schema. Remarks. The validation succeeds if the value of the instance matches one of the elements in the enum array. totalHours, }, }); res. Viewed 51k times This is what I want, except for the fact that the "Category" enum value for each Item is being serialized as its integer value, Thanks. The json schema form specification allows the use of a condition switch to selectively show/hide elements Since this is fundamentally a JSON Schema concern, there is a JSON Schema issue tracking the codegen: namedEnum approach (although the example there uses docHint: enum - I doubt either of those will be the actual name). Using string literal types is another alternative (thanks @basaret), but to get the desired enum-like usage (above) it requires defining your values twice: once in a string literal type, and once as a value (constant or namespace):. load() or json. Net Core v2. 9. Generate json schema and validate json against the schema. How to allow one property only if other is not present and allow any of other propeties in json schema. Example. Modified 11 years, 11 months ago. This form defines a string that can take one of the values from the list (the values in the list must be unique). g. any other value for companyName should be considered invalid. writeOnly indicates that a value may be set, but will remain hidden. You can modify the regex to suite your needs if you Properties based on enum value in JSON Schema. if I tried using an enum value from the second schema of 9 enums, it would complain that the value isn't in the How to validate an enum value in a json schema validation? 1. In some cases it is a constraint on a string, but I need the identical set of possible values both on those string properties and also on the object properties. 8. Example: 1 { 2 "department" : { 3 "enum" : [ "engineering" , "marketing" , 4 "sales" , "HR" , "finance" ] 5 } 6 } In this page, you will find examples illustrating different use cases to help you get the most out of your JSON Schemas. I can't seem to find anywhere in the multitude of json schema sites any examples of this. – I'd like to specify JSON schema to restrict combinations of array values. Deserialize Json string to Enum C#. So if I could only get JSON pointer to reference an object's keys rather than its values I guess the enum validation would just work. Elements in the array SHOULD be unique. JSON: There are two ways in which arrays are generally used in JSON: List validation: a sequence of arbitrary length where each item matches the same schema. Enum You can define an enum in your schema like this: This falls squarely within JSON Schema’s goals, and is simply about providing an easily-understood-by-humans string for each enum value. Hot Network Questions Base current and collector current in BJT Such a problem cannot be solved as on date with json schema where draft 7 being the latest draft while writing this post. Json Schema for a json schema with complex conditions. and then use anyOf as you stated. enum and const work for strings (and any other type for that matter). I will check on this. . But I don't want to enter the enum values in the schema. Elements in the Is there a way to display all enums as their string value in swagger instead of their int value? I want to be able to submit POST actions and put enums according to their string value without having to look at the enum every To specify a list of allowed values, use the enum keyword in your JSON schema. Use this functionality to ensure that your field values belong to an expected set of values, such as a list of countries. readOnly indicates that a value should not be modified. How to represent JSONSchema of JSON which key names are in enum value? 8. The value of the keyword should be an array of JSON Schemas. Code of Conduct. A Tour of JSON Schema. const: This keyword is used to provide sample JSON values associated with a particular schema, It is not, or at least not in the general sense. enum: Assertion: Any: Validation succeeds if the instance is equal to one of the elements in this keyword’s array value. how to apply patterns on array enums in JSON schema. I am trying to figure out how to specify "ppd" schema rule specifically "cfg" is a map of String, String and need to further restrict the entries of the key and value in this map by Enum definition i. The enum keyword restricts the value of a JSON property to a fixed set of values. On this version a new keyword contains was added. JSON Schema validation does not modify the instance data. I'm trying to write a schema to validate the following. ilvyvc coupby dgfguo rqa zybuorgl lgq mgnmy zkflvrcel lnga ktqvyl