Add JSON schema definitions

Author: flaksp

src/jsonSchema.ts

@@ -0,0 +1,84 @@
+interface CommonSchema<
+  SchemaType,
+  MappedTypeScriptType,
+  LogicSubschema,
+> {
+  allOf?: Array<LogicSubschema>,
+  anyOf?: Array<LogicSubschema>,
+  const?: MappedTypeScriptType,
+  default?: MappedTypeScriptType,
+  deprecated?: boolean,
+  description?: string,
+  enum?: Array<MappedTypeScriptType>,
+  examples?: Array<MappedTypeScriptType>,
+  not?: LogicSubschema,
+  oneOf?: Array<LogicSubschema>,
+  readOnly?: boolean,
+  title?: string,
+  type?: SchemaType,
+  writeOnly?: boolean
+}
+
+export interface NullSchema extends CommonSchema<'null', null, NullSchema> {
+}
+
+export interface BooleanSchema extends CommonSchema<'boolean', boolean, BooleanSchema> {
+}
+
+export interface StringSchema extends CommonSchema<'string', string, StringSchema> {
+  maxLength?: number,
+  minLength?: number,
+  pattern?: string,
+}
+
+export interface NumberSchema extends CommonSchema<'number', number, NumberSchema> {
+  exclusiveMaximum?: number,
+  exclusiveMinimum?: number,
+  maximum?: number,
+  minimum?: number,
+  multipleOf?: number,
+}
+
+export interface IntegerSchema extends CommonSchema<'integer', number, IntegerSchema> {
+  exclusiveMaximum?: number,
+  exclusiveMinimum?: number,
+  maximum?: number,
+  minimum?: number,
+  multipleOf?: number,
+}
+
+export interface ArraySchema extends CommonSchema<'array', Array<any>, ArraySchema> {
+  contains?: JsonSchema,
+  items?: JsonSchema,
+  maxContains?: number,
+  maxItems?: number,
+  minContains?: number,
+  minItems?: number,
+  prefixItems?: Array<JsonSchema>,
+  uniqueItems?: boolean
+}
+
+export interface ObjectSchema extends CommonSchema<'object', Record<string, any>, ObjectSchema> {
+  additionalProperties?: JsonSchema,
+  dependentRequired?: Record<string, Array<string>>,
+  maxProperties?: number,
+  minProperties?: number,
+  patternProperties?: { [propertyNameRegex: string]: JsonSchema },
+  properties?: { [propertyName: string]: JsonSchema },
+  propertyNames?: JsonSchema,
+  required?: Array<string>,
+}
+
+type CommonProperties = keyof CommonSchema<any, any, any>;
+
+export interface AnySchema extends Omit<NullSchema, CommonProperties>,
+  Omit<BooleanSchema, CommonProperties>,
+  Omit<StringSchema, CommonProperties>,
+  Omit<NumberSchema, CommonProperties>,
+  Omit<IntegerSchema, CommonProperties>,
+  Omit<ArraySchema, CommonProperties>,
+  Omit<ObjectSchema, CommonProperties>,
+  CommonSchema<undefined | Array<'string' | 'integer' | 'number' | 'array' | 'object' | 'boolean' | 'null'>, any, JsonSchema> {
+}
+
+export type JsonSchema = NullSchema | BooleanSchema | StringSchema | NumberSchema | IntegerSchema | ArraySchema | ObjectSchema | AnySchema;