매개변수 및 스키마의 type 및 format 속성을 사용하여 속성의 데이터 유형을 확인할 수 있습니다. type 속성은 JSON 요청 및 응답으로 전송될 때 속성 유형을 나타냅니다(JSON은 소규모 데이터 유형 집합을 지원합니다. 자세한 내용은 json.org를 참조하세요). format 속성은 기본 유형에 대한 추가 정보를 제공합니다. 속성에는 항상 type 속성이 있지만 일부 속성에는 format 속성이 있을 수도 있습니다.
예를 들어 JavaScript 및 JSON은 최대 2^53의 정수를 지원하므로 64비트 정수는 JSON으로 표현할 수 없습니다. 따라서 64비트 정수는 JSON 요청/응답에서 문자열로 표현되어야 합니다. 따라서 type 속성은 'string'으로 설정되지만, format 속성은 'int64'로 설정되어 64비트 정수임을 나타냅니다.
JSON 스키마 사양은 이미 format 속성에 대해 공통 값 집합을 정의합니다. Google API 탐색 서비스는 이러한 값 중 일부를 지원하고 다른 값도 정의합니다. Google API 탐색 서비스에서 지원하는 type 및 format 값의 전체 목록은 아래에 요약되어 있습니다.
[null,null,["최종 업데이트: 2025-07-25(UTC)"],[[["\u003cp\u003eThe \u003ccode\u003etype\u003c/code\u003e property defines the data type in JSON, while the \u003ccode\u003eformat\u003c/code\u003e property provides additional context about the underlying type.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003etype\u003c/code\u003e is always present, but \u003ccode\u003eformat\u003c/code\u003e is optional and offers further data type details.\u003c/p\u003e\n"],["\u003cp\u003eGoogle APIs Discovery Service supports standard JSON Schema formats and defines its own for specific Google data types.\u003c/p\u003e\n"],["\u003cp\u003eClient libraries may use language-specific types to represent these types and formats for better integration.\u003c/p\u003e\n"],["\u003cp\u003eThe table comprehensively lists all supported \u003ccode\u003etype\u003c/code\u003e and \u003ccode\u003eformat\u003c/code\u003e values used by the Google APIs Discovery Service.\u003c/p\u003e\n"]]],[],null,["# Type and format\n\nThe `type` and `format` properties on parameters and schemas can be used\nto determine the data type of the property. The `type` property indicates the type of\nthe property when its sent in JSON requests and responses (JSON supports a small set of data\ntypes, see [json.org](https://json.org) for details). The `format`\nproperty provides additional information about the underlying type. Properties will always have\na `type` property, but some may also have a `format` property.\n\n\nFor example, a 64-bit integer cannot be represented in JSON (since JavaScript and JSON support\nintegers up to 2\\^53). Therefore, a 64-bit integer must be represented as a string in JSON\nrequests/responses. So the `type` property will be set to \"string\", but the\n`format` property will be set to \"int64\" to indicate that it is a 64-bit integer.\n\n\nThe JSON Schema spec already [defines a set of common\nvalues](https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.23) for the `format` property. The Google APIs Discovery Service supports some\nof these values, and defines others as well. The full list of `type` and\n`format` values supported by Google APIs Discovery Service is summarized below.\n| **Note:** The [client libraries](https://developers.google.com/api-client-library/) that we automatically generate from an API's discovery document sometimes use language-idiomatic types for these types and formats. For example: A 64-bit integer is represented as type `string` in JSON requests and responses, but our generated Java client library uses the Java `long` type.\n\n| Type value | Format value | Meaning |\n| `any` | | The property may have any type. Defined by the [JSON Schema spec](https://tools.ietf.org/html/draft-zyp-json-schema-03). |\n| `any` | `google.protobuf.Value` | The property has the JSON representation of the type of [google.protobuf.Value](https://github.com/protocolbuffers/protobuf/blob/main/src/google/protobuf/struct.proto). |\n| `array` | | A JavaScript array of values. The `items` property indicates the schema for the array values. Defined by the JSON Schema spec. |\n| `array` | `google.protobuf.ListValue` | The property has the JSON representation of the type of [google.protobuf.ListValue](https://github.com/protocolbuffers/protobuf/blob/main/src/google/protobuf/struct.proto). |\n| `boolean` | | A boolean value, either \"true\" or \"false\". Defined by the JSON Schema spec. |\n| `integer` | `int32` | A 32-bit signed integer. It has a minimum value of -2,147,483,648 and a maximum value of 2,147,483,647 (inclusive). |\n| `integer` | `uint32` | A 32-bit unsigned integer. It has a minimum value of 0 and a maximum value of 4,294,967,295 (inclusive). |\n| `number` | `double` | A double-precision 64-bit IEEE 754 floating point. |\n| `number` | `float` | A single-precision 32-bit IEEE 754 floating point. |\n| `object` | | A JavaScript object. Defined by the JSON Schema spec. |\n| `object` | `google.protobuf.Struct` | The property has the JSON representation of the type of [google.protobuf.Struct](https://github.com/protocolbuffers/protobuf/blob/main/src/google/protobuf/struct.proto). |\n| `object` | `google.protobuf.Any` | The property has the JSON representation of the type of [google.protobuf.Any](https://github.com/protocolbuffers/protobuf/blob/main/src/google/protobuf/any.proto). |\n| `string` | | An arbitrary string. Defined by the JSON Schema spec. |\n| `string` | `byte` | A padded, base64-encoded string of bytes, encoded with a URL and filename safe alphabet (sometimes referred to as \"web-safe\" or \"base64url\"). Defined by [RFC4648](https://tools.ietf.org/html/rfc4648). |\n| `string` | `date` | An RFC3339 date in the format YYYY-MM-DD. Defined in the JSON Schema spec. |\n| `string` | `date-time` | An RFC3339 timestamp in UTC time. This in the format of yyyy-MM-ddTHH:mm:ss.SSSZ. The milliseconds portion (\".SSS\") is optional. Defined in the JSON Schema spec. |\n| `string` | `google-datetime` | An RFC3339 timestamp in UTC time. This in the format of yyyy-MM-ddTHH:mm:ss.SSSZ. The milliseconds portion (\".SSS\") is optional. |\n| `string` | `google-duration` | A string ends in the suffix \"s\" (indicating seconds) and is preceded by the number of seconds, with nanoseconds expressed as fractional seconds. The period is always used as the decimal point, not a comma. |\n| `string` | `google-fieldmask` | A string where field names are separated by a comma. Field names are represented in lower-camel naming conventions. |\n| `string` | `int64` | A 64-bit signed integer. It has a minimum value of -9,223,372,036,854,775,808 and a maximum value of 9,223,372,036,854,775,807 (inclusive). |\n| `string` | `uint64` | A 64-bit unsigned integer. It has a minimum value of 0 and a maximum value of (2\\^64)-1 (inclusive). |\n|------------|-----------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|"]]
