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syntax = "proto3";
package grpc.gateway.protoc_gen_openapiv2.options;
option go_package = "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2/options";
import "google/protobuf/struct.proto";
// Scheme describes the schemes supported by the OpenAPI Swagger
// and Operation objects.
enum Scheme {
UNKNOWN = 0;
HTTP = 1;
HTTPS = 2;
WS = 3;
WSS = 4;
}
// `Swagger` is a representation of OpenAPI v2 specification's Swagger object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#swaggerObject
//
// Example:
//
// option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
// info: {
// title: "Echo API";
// version: "1.0";
// description: ";
// contact: {
// name: "gRPC-Gateway project";
// url: "https://github.com/grpc-ecosystem/grpc-gateway";
// email: "none@example.com";
// };
// license: {
// name: "BSD 3-Clause License";
// url: "https://github.com/grpc-ecosystem/grpc-gateway/blob/master/LICENSE.txt";
// };
// };
// schemes: HTTPS;
// consumes: "application/json";
// produces: "application/json";
// };
//
message Swagger {
// Specifies the OpenAPI Specification version being used. It can be
// used by the OpenAPI UI and other clients to interpret the API listing. The
// value MUST be "2.0".
string swagger = 1;
// Provides metadata about the API. The metadata can be used by the
// clients if needed.
Info info = 2;
// The host (name or ip) serving the API. This MUST be the host only and does
// not include the scheme nor sub-paths. It MAY include a port. If the host is
// not included, the host serving the documentation is to be used (including
// the port). The host does not support path templating.
string host = 3;
// The base path on which the API is served, which is relative to the host. If
// it is not included, the API is served directly under the host. The value
// MUST start with a leading slash (/). The basePath does not support path
// templating.
// Note that using `base_path` does not change the endpoint paths that are
// generated in the resulting OpenAPI file. If you wish to use `base_path`
// with relatively generated OpenAPI paths, the `base_path` prefix must be
// manually removed from your `google.api.http` paths and your code changed to
// serve the API from the `base_path`.
string base_path = 4;
// The transfer protocol of the API. Values MUST be from the list: "http",
// "https", "ws", "wss". If the schemes is not included, the default scheme to
// be used is the one used to access the OpenAPI definition itself.
repeated Scheme schemes = 5;
// A list of MIME types the APIs can consume. This is global to all APIs but
// can be overridden on specific API calls. Value MUST be as described under
// Mime Types.
repeated string consumes = 6;
// A list of MIME types the APIs can produce. This is global to all APIs but
// can be overridden on specific API calls. Value MUST be as described under
// Mime Types.
repeated string produces = 7;
// field 8 is reserved for 'paths'.
reserved 8;
// field 9 is reserved for 'definitions', which at this time are already
// exposed as and customizable as proto messages.
reserved 9;
// An object to hold responses that can be used across operations. This
// property does not define global responses for all operations.
map<string, Response> responses = 10;
// Security scheme definitions that can be used across the specification.
SecurityDefinitions security_definitions = 11;
// A declaration of which security schemes are applied for the API as a whole.
// The list of values describes alternative security schemes that can be used
// (that is, there is a logical OR between the security requirements).
// Individual operations can override this definition.
repeated SecurityRequirement security = 12;
// field 13 is reserved for 'tags', which are supposed to be exposed as and
// customizable as proto services. TODO(ivucica): add processing of proto
// service objects into OpenAPI v2 Tag objects.
reserved 13;
// Additional external documentation.
ExternalDocumentation external_docs = 14;
map<string, google.protobuf.Value> extensions = 15;
}
// `Operation` is a representation of OpenAPI v2 specification's Operation object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#operationObject
//
// Example:
//
// service EchoService {
// rpc Echo(SimpleMessage) returns (SimpleMessage) {
// option (google.api.http) = {
// get: "/v1/example/echo/{id}"
// };
//
// option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_operation) = {
// summary: "Get a message.";
// operation_id: "getMessage";
// tags: "echo";
// responses: {
// key: "200"
// value: {
// description: "OK";
// }
// }
// };
// }
// }
message Operation {
// A list of tags for API documentation control. Tags can be used for logical
// grouping of operations by resources or any other qualifier.
repeated string tags = 1;
// A short summary of what the operation does. For maximum readability in the
// swagger-ui, this field SHOULD be less than 120 characters.
string summary = 2;
// A verbose explanation of the operation behavior. GFM syntax can be used for
// rich text representation.
string description = 3;
// Additional external documentation for this operation.
ExternalDocumentation external_docs = 4;
// Unique string used to identify the operation. The id MUST be unique among
// all operations described in the API. Tools and libraries MAY use the
// operationId to uniquely identify an operation, therefore, it is recommended
// to follow common programming naming conventions.
string operation_id = 5;
// A list of MIME types the operation can consume. This overrides the consumes
// definition at the OpenAPI Object. An empty value MAY be used to clear the
// global definition. Value MUST be as described under Mime Types.
repeated string consumes = 6;
// A list of MIME types the operation can produce. This overrides the produces
// definition at the OpenAPI Object. An empty value MAY be used to clear the
// global definition. Value MUST be as described under Mime Types.
repeated string produces = 7;
// field 8 is reserved for 'parameters'.
reserved 8;
// The list of possible responses as they are returned from executing this
// operation.
map<string, Response> responses = 9;
// The transfer protocol for the operation. Values MUST be from the list:
// "http", "https", "ws", "wss". The value overrides the OpenAPI Object
// schemes definition.
repeated Scheme schemes = 10;
// Declares this operation to be deprecated. Usage of the declared operation
// should be refrained. Default value is false.
bool deprecated = 11;
// A declaration of which security schemes are applied for this operation. The
// list of values describes alternative security schemes that can be used
// (that is, there is a logical OR between the security requirements). This
// definition overrides any declared top-level security. To remove a top-level
// security declaration, an empty array can be used.
repeated SecurityRequirement security = 12;
map<string, google.protobuf.Value> extensions = 13;
}
// `Header` is a representation of OpenAPI v2 specification's Header object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#headerObject
//
message Header {
// `Description` is a short description of the header.
string description = 1;
// The type of the object. The value MUST be one of "string", "number", "integer", or "boolean". The "array" type is not supported.
string type = 2;
// `Format` The extending format for the previously mentioned type.
string format = 3;
// field 4 is reserved for 'items', but in OpenAPI-specific way.
reserved 4;
// field 5 is reserved `Collection Format` Determines the format of the array if type array is used.
reserved 5;
// `Default` Declares the value of the header that the server will use if none is provided.
// See: https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-6.2.
// Unlike JSON Schema this value MUST conform to the defined type for the header.
string default = 6;
// field 7 is reserved for 'maximum'.
reserved 7;
// field 8 is reserved for 'exclusiveMaximum'.
reserved 8;
// field 9 is reserved for 'minimum'.
reserved 9;
// field 10 is reserved for 'exclusiveMinimum'.
reserved 10;
// field 11 is reserved for 'maxLength'.
reserved 11;
// field 12 is reserved for 'minLength'.
reserved 12;
// 'Pattern' See https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-5.2.3.
string pattern = 13;
// field 14 is reserved for 'maxItems'.
reserved 14;
// field 15 is reserved for 'minItems'.
reserved 15;
// field 16 is reserved for 'uniqueItems'.
reserved 16;
// field 17 is reserved for 'enum'.
reserved 17;
// field 18 is reserved for 'multipleOf'.
reserved 18;
}
// `Response` is a representation of OpenAPI v2 specification's Response object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#responseObject
//
message Response {
// `Description` is a short description of the response.
// GFM syntax can be used for rich text representation.
string description = 1;
// `Schema` optionally defines the structure of the response.
// If `Schema` is not provided, it means there is no content to the response.
Schema schema = 2;
// `Headers` A list of headers that are sent with the response.
// `Header` name is expected to be a string in the canonical format of the MIME header key
// See: https://golang.org/pkg/net/textproto/#CanonicalMIMEHeaderKey
map<string, Header> headers = 3;
// `Examples` gives per-mimetype response examples.
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#example-object
map<string, string> examples = 4;
map<string, google.protobuf.Value> extensions = 5;
}
// `Info` is a representation of OpenAPI v2 specification's Info object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#infoObject
//
// Example:
//
// option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
// info: {
// title: "Echo API";
// version: "1.0";
// description: ";
// contact: {
// name: "gRPC-Gateway project";
// url: "https://github.com/grpc-ecosystem/grpc-gateway";
// email: "none@example.com";
// };
// license: {
// name: "BSD 3-Clause License";
// url: "https://github.com/grpc-ecosystem/grpc-gateway/blob/master/LICENSE.txt";
// };
// };
// ...
// };
//
message Info {
// The title of the application.
string title = 1;
// A short description of the application. GFM syntax can be used for rich
// text representation.
string description = 2;
// The Terms of Service for the API.
string terms_of_service = 3;
// The contact information for the exposed API.
Contact contact = 4;
// The license information for the exposed API.
License license = 5;
// Provides the version of the application API (not to be confused
// with the specification version).
string version = 6;
map<string, google.protobuf.Value> extensions = 7;
}
// `Contact` is a representation of OpenAPI v2 specification's Contact object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#contactObject
//
// Example:
//
// option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
// info: {
// ...
// contact: {
// name: "gRPC-Gateway project";
// url: "https://github.com/grpc-ecosystem/grpc-gateway";
// email: "none@example.com";
// };
// ...
// };
// ...
// };
//
message Contact {
// The identifying name of the contact person/organization.
string name = 1;
// The URL pointing to the contact information. MUST be in the format of a
// URL.
string url = 2;
// The email address of the contact person/organization. MUST be in the format
// of an email address.
string email = 3;
}
// `License` is a representation of OpenAPI v2 specification's License object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#licenseObject
//
// Example:
//
// option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
// info: {
// ...
// license: {
// name: "BSD 3-Clause License";
// url: "https://github.com/grpc-ecosystem/grpc-gateway/blob/master/LICENSE.txt";
// };
// ...
// };
// ...
// };
//
message License {
// The license name used for the API.
string name = 1;
// A URL to the license used for the API. MUST be in the format of a URL.
string url = 2;
}
// `ExternalDocumentation` is a representation of OpenAPI v2 specification's
// ExternalDocumentation object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#externalDocumentationObject
//
// Example:
//
// option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
// ...
// external_docs: {
// description: "More about gRPC-Gateway";
// url: "https://github.com/grpc-ecosystem/grpc-gateway";
// }
// ...
// };
//
message ExternalDocumentation {
// A short description of the target documentation. GFM syntax can be used for
// rich text representation.
string description = 1;
// The URL for the target documentation. Value MUST be in the format
// of a URL.
string url = 2;
}
// `Schema` is a representation of OpenAPI v2 specification's Schema object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#schemaObject
//
message Schema {
JSONSchema json_schema = 1;
// Adds support for polymorphism. The discriminator is the schema property
// name that is used to differentiate between other schema that inherit this
// schema. The property name used MUST be defined at this schema and it MUST
// be in the required property list. When used, the value MUST be the name of
// this schema or any schema that inherits it.
string discriminator = 2;
// Relevant only for Schema "properties" definitions. Declares the property as
// "read only". This means that it MAY be sent as part of a response but MUST
// NOT be sent as part of the request. Properties marked as readOnly being
// true SHOULD NOT be in the required list of the defined schema. Default
// value is false.
bool read_only = 3;
// field 4 is reserved for 'xml'.
reserved 4;
// Additional external documentation for this schema.
ExternalDocumentation external_docs = 5;
// A free-form property to include an example of an instance for this schema in JSON.
// This is copied verbatim to the output.
string example = 6;
}
// `JSONSchema` represents properties from JSON Schema taken, and as used, in
// the OpenAPI v2 spec.
//
// This includes changes made by OpenAPI v2.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#schemaObject
//
// See also: https://cswr.github.io/JsonSchema/spec/basic_types/,
// https://github.com/json-schema-org/json-schema-spec/blob/master/schema.json
//
// Example:
//
// message SimpleMessage {
// option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema) = {
// json_schema: {
// title: "SimpleMessage"
// description: "A simple message."
// required: ["id"]
// }
// };
//
// // Id represents the message identifier.
// string id = 1; [
// (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_field) = {
// {description: "The unique identifier of the simple message."
// }];
// }
//
message JSONSchema {
// field 1 is reserved for '$id', omitted from OpenAPI v2.
reserved 1;
// field 2 is reserved for '$schema', omitted from OpenAPI v2.
reserved 2;
// Ref is used to define an external reference to include in the message.
// This could be a fully qualified proto message reference, and that type must
// be imported into the protofile. If no message is identified, the Ref will
// be used verbatim in the output.
// For example:
// `ref: ".google.protobuf.Timestamp"`.
string ref = 3;
// field 4 is reserved for '$comment', omitted from OpenAPI v2.
reserved 4;
// The title of the schema.
string title = 5;
// A short description of the schema.
string description = 6;
string default = 7;
bool read_only = 8;
// A free-form property to include a JSON example of this field. This is copied
// verbatim to the output swagger.json. Quotes must be escaped.
// This property is the same for 2.0 and 3.0.0 https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/3.0.0.md#schemaObject https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#schemaObject
string example = 9;
double multiple_of = 10;
// Maximum represents an inclusive upper limit for a numeric instance. The
// value of MUST be a number,
double maximum = 11;
bool exclusive_maximum = 12;
// minimum represents an inclusive lower limit for a numeric instance. The
// value of MUST be a number,
double minimum = 13;
bool exclusive_minimum = 14;
uint64 max_length = 15;
uint64 min_length = 16;
string pattern = 17;
// field 18 is reserved for 'additionalItems', omitted from OpenAPI v2.
reserved 18;
// field 19 is reserved for 'items', but in OpenAPI-specific way.
// TODO(ivucica): add 'items'?
reserved 19;
uint64 max_items = 20;
uint64 min_items = 21;
bool unique_items = 22;
// field 23 is reserved for 'contains', omitted from OpenAPI v2.
reserved 23;
uint64 max_properties = 24;
uint64 min_properties = 25;
repeated string required = 26;
// field 27 is reserved for 'additionalProperties', but in OpenAPI-specific
// way. TODO(ivucica): add 'additionalProperties'?
reserved 27;
// field 28 is reserved for 'definitions', omitted from OpenAPI v2.
reserved 28;
// field 29 is reserved for 'properties', but in OpenAPI-specific way.
// TODO(ivucica): add 'additionalProperties'?
reserved 29;
// following fields are reserved, as the properties have been omitted from
// OpenAPI v2:
// patternProperties, dependencies, propertyNames, const
reserved 30 to 33;
// Items in 'array' must be unique.
repeated string array = 34;
enum JSONSchemaSimpleTypes {
UNKNOWN = 0;
ARRAY = 1;
BOOLEAN = 2;
INTEGER = 3;
NULL = 4;
NUMBER = 5;
OBJECT = 6;
STRING = 7;
}
repeated JSONSchemaSimpleTypes type = 35;
// `Format`
string format = 36;
// following fields are reserved, as the properties have been omitted from
// OpenAPI v2: contentMediaType, contentEncoding, if, then, else
reserved 37 to 41;
// field 42 is reserved for 'allOf', but in OpenAPI-specific way.
// TODO(ivucica): add 'allOf'?
reserved 42;
// following fields are reserved, as the properties have been omitted from
// OpenAPI v2:
// anyOf, oneOf, not
reserved 43 to 45;
// Items in `enum` must be unique https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-5.5.1
repeated string enum = 46;
}
// `Tag` is a representation of OpenAPI v2 specification's Tag object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#tagObject
//
message Tag {
// field 1 is reserved for 'name'. In our generator, this is (to be) extracted
// from the name of proto service, and thus not exposed to the user, as
// changing tag object's name would break the link to the references to the
// tag in individual operation specifications.
//
// TODO(ivucica): Add 'name' property. Use it to allow override of the name of
// global Tag object, then use that name to reference the tag throughout the
// OpenAPI file.
reserved 1;
// A short description for the tag. GFM syntax can be used for rich text
// representation.
string description = 2;
// Additional external documentation for this tag.
ExternalDocumentation external_docs = 3;
}
// `SecurityDefinitions` is a representation of OpenAPI v2 specification's
// Security Definitions object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#securityDefinitionsObject
//
// A declaration of the security schemes available to be used in the
// specification. This does not enforce the security schemes on the operations
// and only serves to provide the relevant details for each scheme.
message SecurityDefinitions {
// A single security scheme definition, mapping a "name" to the scheme it
// defines.
map<string, SecurityScheme> security = 1;
}
// `SecurityScheme` is a representation of OpenAPI v2 specification's
// Security Scheme object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#securitySchemeObject
//
// Allows the definition of a security scheme that can be used by the
// operations. Supported schemes are basic authentication, an API key (either as
// a header or as a query parameter) and OAuth2's common flows (implicit,
// password, application and access code).
message SecurityScheme {
// The type of the security scheme. Valid values are "basic",
// "apiKey" or "oauth2".
enum Type {
TYPE_INVALID = 0;
TYPE_BASIC = 1;
TYPE_API_KEY = 2;
TYPE_OAUTH2 = 3;
}
// The location of the API key. Valid values are "query" or "header".
enum In {
IN_INVALID = 0;
IN_QUERY = 1;
IN_HEADER = 2;
}
// The flow used by the OAuth2 security scheme. Valid values are
// "implicit", "password", "application" or "accessCode".
enum Flow {
FLOW_INVALID = 0;
FLOW_IMPLICIT = 1;
FLOW_PASSWORD = 2;
FLOW_APPLICATION = 3;
FLOW_ACCESS_CODE = 4;
}
// The type of the security scheme. Valid values are "basic",
// "apiKey" or "oauth2".
Type type = 1;
// A short description for security scheme.
string description = 2;
// The name of the header or query parameter to be used.
// Valid for apiKey.
string name = 3;
// The location of the API key. Valid values are "query" or
// "header".
// Valid for apiKey.
In in = 4;
// The flow used by the OAuth2 security scheme. Valid values are
// "implicit", "password", "application" or "accessCode".
// Valid for oauth2.
Flow flow = 5;
// The authorization URL to be used for this flow. This SHOULD be in
// the form of a URL.
// Valid for oauth2/implicit and oauth2/accessCode.
string authorization_url = 6;
// The token URL to be used for this flow. This SHOULD be in the
// form of a URL.
// Valid for oauth2/password, oauth2/application and oauth2/accessCode.
string token_url = 7;
// The available scopes for the OAuth2 security scheme.
// Valid for oauth2.
Scopes scopes = 8;
map<string, google.protobuf.Value> extensions = 9;
}
// `SecurityRequirement` is a representation of OpenAPI v2 specification's
// Security Requirement object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#securityRequirementObject
//
// Lists the required security schemes to execute this operation. The object can
// have multiple security schemes declared in it which are all required (that
// is, there is a logical AND between the schemes).
//
// The name used for each property MUST correspond to a security scheme
// declared in the Security Definitions.
message SecurityRequirement {
// If the security scheme is of type "oauth2", then the value is a list of
// scope names required for the execution. For other security scheme types,
// the array MUST be empty.
message SecurityRequirementValue {
repeated string scope = 1;
}
// Each name must correspond to a security scheme which is declared in
// the Security Definitions. If the security scheme is of type "oauth2",
// then the value is a list of scope names required for the execution.
// For other security scheme types, the array MUST be empty.
map<string, SecurityRequirementValue> security_requirement = 1;
}
// `Scopes` is a representation of OpenAPI v2 specification's Scopes object.
//
// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#scopesObject
//
// Lists the available scopes for an OAuth2 security scheme.
message Scopes {
// Maps between a name of a scope to a short description of it (as the value
// of the property).
map<string, string> scope = 1;
}
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