{ "basePath": "", "baseUrl": "https://sts.googleapis.com/", "batchPath": "batch", "canonicalName": "Cloud Security Token", "description": "The Security Token Service exchanges Google or third-party credentials for a short-lived access token to Google Cloud resources.", "discoveryVersion": "v1", "documentationLink": "http://cloud.google.com/iam/docs/workload-identity-federation", "fullyEncodeReservedExpansion": true, "icons": { "x16": "http://www.google.com/images/icons/product/search-16.gif", "x32": "http://www.google.com/images/icons/product/search-32.gif" }, "id": "sts:v1", "kind": "discovery#restDescription", "mtlsRootUrl": "https://sts.mtls.googleapis.com/", "name": "sts", "ownerDomain": "google.com", "ownerName": "Google", "parameters": { "$.xgafv": { "description": "V1 error format.", "enum": [ "1", "2" ], "enumDescriptions": [ "v1 error format", "v2 error format" ], "location": "query", "type": "string" }, "access_token": { "description": "OAuth access token.", "location": "query", "type": "string" }, "alt": { "default": "json", "description": "Data format for response.", "enum": [ "json", "media", "proto" ], "enumDescriptions": [ "Responses with Content-Type of application/json", "Media download with context-dependent Content-Type", "Responses with Content-Type of application/x-protobuf" ], "location": "query", "type": "string" }, "callback": { "description": "JSONP", "location": "query", "type": "string" }, "fields": { "description": "Selector specifying which fields to include in a partial response.", "location": "query", "type": "string" }, "key": { "description": "API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.", "location": "query", "type": "string" }, "oauth_token": { "description": "OAuth 2.0 token for the current user.", "location": "query", "type": "string" }, "prettyPrint": { "default": "true", "description": "Returns response with indentations and line breaks.", "location": "query", "type": "boolean" }, "quotaUser": { "description": "Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters.", "location": "query", "type": "string" }, "uploadType": { "description": "Legacy upload protocol for media (e.g. \"media\", \"multipart\").", "location": "query", "type": "string" }, "upload_protocol": { "description": "Upload protocol for media (e.g. \"raw\", \"multipart\").", "location": "query", "type": "string" } }, "protocol": "rest", "resources": { "v1": { "methods": { "token": { "description": "Exchanges a credential for a Google OAuth 2.0 access token. The token asserts an external identity within a workload identity pool, or it applies a Credential Access Boundary to a Google access token. When you call this method, do not send the `Authorization` HTTP header in the request. This method does not require the `Authorization` header, and using the header can cause the request to fail.", "flatPath": "v1/token", "httpMethod": "POST", "id": "sts.token", "parameterOrder": [], "parameters": {}, "path": "v1/token", "request": { "$ref": "GoogleIdentityStsV1ExchangeTokenRequest" }, "response": { "$ref": "GoogleIdentityStsV1ExchangeTokenResponse" } } } } }, "revision": "20210326", "rootUrl": "https://sts.googleapis.com/", "schemas": { "GoogleIdentityStsV1ExchangeTokenRequest": { "description": "Request message for ExchangeToken.", "id": "GoogleIdentityStsV1ExchangeTokenRequest", "properties": { "audience": { "description": "The full resource name of the identity provider; for example: `//iam.googleapis.com/projects//workloadIdentityPools//providers/`. Required when exchanging an external credential for a Google access token.", "type": "string" }, "grantType": { "description": "Required. The grant type. Must be `urn:ietf:params:oauth:grant-type:token-exchange`, which indicates a token exchange.", "type": "string" }, "options": { "description": "A set of features that Security Token Service supports, in addition to the standard OAuth 2.0 token exchange, formatted as a serialized JSON object of Options.", "type": "string" }, "requestedTokenType": { "description": "Required. An identifier for the type of requested security token. Must be `urn:ietf:params:oauth:token-type:access_token`.", "type": "string" }, "scope": { "description": "The OAuth 2.0 scopes to include on the resulting access token, formatted as a list of space-delimited, case-sensitive strings. Required when exchanging an external credential for a Google access token.", "type": "string" }, "subjectToken": { "description": "Required. The input token. This token is a either an external credential issued by a workload identity pool provider, or a short-lived access token issued by Google. If the token is an OIDC JWT, it must use the JWT format defined in [RFC 7523](https://tools.ietf.org/html/rfc7523), and the `subject_token_type` must be `urn:ietf:params:oauth:token-type:jwt`. The following headers are required: - `kid`: The identifier of the signing key securing the JWT. - `alg`: The cryptographic algorithm securing the JWT. Must be `RS256`. The following payload fields are required. For more information, see [RFC 7523, Section 3](https://tools.ietf.org/html/rfc7523#section-3): - `iss`: The issuer of the token. The issuer must provide a discovery document at the URL `/.well-known/openid-configuration`, where `` is the value of this field. The document must be formatted according to section 4.2 of the [OIDC 1.0 Discovery specification](https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationResponse). - `iat`: The issue time, in seconds, since the Unix epoch. Must be in the past. - `exp`: The expiration time, in seconds, since the Unix epoch. Must be less than 48 hours after `iat`. Shorter expiration times are more secure. If possible, we recommend setting an expiration time less than 6 hours. - `sub`: The identity asserted in the JWT. - `aud`: Configured by the mapper policy. The default value is the service account's unique ID. Example header: ``` { \"alg\": \"RS256\", \"kid\": \"us-east-11\" } ``` Example payload: ``` { \"iss\": \"https://accounts.google.com\", \"iat\": 1517963104, \"exp\": 1517966704, \"aud\": \"113475438248934895348\", \"sub\": \"113475438248934895348\", \"my_claims\": { \"additional_claim\": \"value\" } } ``` If `subject_token` is for AWS, it must be a serialized `GetCallerIdentity` token. This token contains the same information as a request to the AWS [`GetCallerIdentity()`](https://docs.aws.amazon.com/STS/latest/APIReference/API_GetCallerIdentity) method, as well as the AWS [signature](https://docs.aws.amazon.com/general/latest/gr/signing_aws_api_requests.html) for the request information. Use Signature Version 4. Format the request as URL-encoded JSON, and set the `subject_token_type` parameter to `urn:ietf:params:aws:token-type:aws4_request`. The following parameters are required: - `url`: The URL of the AWS STS endpoint for `GetCallerIdentity()`, such as `https://sts.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15`. Regional endpoints are also supported. - `method`: The HTTP request method: `POST`. - `headers`: The HTTP request headers, which must include: - `Authorization`: The request signature. - `x-amz-date`: The time you will send the request, formatted as an [ISO8601 Basic](https://docs.aws.amazon.com/general/latest/gr/sigv4_elements.html#sigv4_elements_date) string. This value is typically set to the current time and is used to help prevent replay attacks. - `host`: The hostname of the `url` field; for example, `sts.amazonaws.com`. - `x-goog-cloud-target-resource`: The full, canonical resource name of the workload identity pool provider, with or without an `https:` prefix. To help ensure data integrity, we recommend including this header in the `SignedHeaders` field of the signed request. For example: //iam.googleapis.com/projects//locations//workloadIdentityPools//providers/ https://iam.googleapis.com/projects//locations//workloadIdentityPools//providers/ If you are using temporary security credentials provided by AWS, you must also include the header `x-amz-security-token`, with the value set to the session token. The following example shows a `GetCallerIdentity` token: ``` { \"headers\": [ {\"key\": \"x-amz-date\", \"value\": \"20200815T015049Z\"}, {\"key\": \"Authorization\", \"value\": \"AWS4-HMAC-SHA256+Credential=$credential,+SignedHeaders=host;x-amz-date;x-goog-cloud-target-resource,+Signature=$signature\"}, {\"key\": \"x-goog-cloud-target-resource\", \"value\": \"//iam.googleapis.com/projects//locations//workloadIdentityPools//providers/\"}, {\"key\": \"host\", \"value\": \"sts.amazonaws.com\"} . ], \"method\": \"POST\", \"url\": \"https://sts.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15\" } ``` You can also use a Google-issued OAuth 2.0 access token with this field to obtain an access token with new security attributes applied, such as a Credential Access Boundary. In this case, set `subject_token_type` to `urn:ietf:params:oauth:token-type:access_token`. If an access token already contains security attributes, you cannot apply additional security attributes.", "type": "string" }, "subjectTokenType": { "description": "Required. An identifier that indicates the type of the security token in the `subject_token` parameter. Supported values are `urn:ietf:params:oauth:token-type:jwt`, `urn:ietf:params:aws:token-type:aws4_request`, and `urn:ietf:params:oauth:token-type:access_token`.", "type": "string" } }, "type": "object" }, "GoogleIdentityStsV1ExchangeTokenResponse": { "description": "Response message for ExchangeToken.", "id": "GoogleIdentityStsV1ExchangeTokenResponse", "properties": { "access_token": { "description": "An OAuth 2.0 security token, issued by Google, in response to the token exchange request. Tokens can vary in size, depending in part on the size of mapped claims, up to a maximum of 12288 bytes (12 KB). Google reserves the right to change the token size and the maximum length at any time.", "type": "string" }, "expires_in": { "description": "The amount of time, in seconds, between the time when the access token was issued and the time when the access token will expire. This field is absent when the `subject_token` in the request is a Google-issued, short-lived access token. In this case, the access token has the same expiration time as the `subject_token`.", "format": "int32", "type": "integer" }, "issued_token_type": { "description": "The token type. Always matches the value of `requested_token_type` from the request.", "type": "string" }, "token_type": { "description": "The type of access token. Always has the value `Bearer`.", "type": "string" } }, "type": "object" } }, "servicePath": "", "title": "Security Token Service API", "version": "v1", "version_module": true }