openapi: 3.1.0
info:
  title: Google Cloud Spanner API
  description: >-
    The Cloud Spanner API provides programmatic access to Google Cloud Spanner,
    a globally distributed, strongly consistent relational database service. It
    enables management of instances, databases, sessions, and execution of SQL
    queries and DML statements with full ACID transaction support.
  version: v1
  contact:
    name: Google Cloud
    url: https://cloud.google.com/spanner/docs/reference/rest
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
servers:
  - url: https://spanner.googleapis.com/v1
    description: Cloud Spanner API v1
tags:
  - name: Databases
    description: Operations on Spanner databases
  - name: Instances
    description: Operations on Spanner instances
  - name: Sessions
    description: Operations on database sessions
paths:
  /projects/{project}/instances:
    get:
      tags:
        - Instances
      summary: Google Cloud Spanner List instances
      description: Lists all instances in the given project.
      operationId: listInstances
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: pageSize
          in: query
          schema:
            type: integer
        - name: pageToken
          in: query
          schema:
            type: string
        - name: filter
          in: query
          schema:
            type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ListInstancesResponse'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
    post:
      tags:
        - Instances
      summary: Google Cloud Spanner Create an instance
      description: Creates an instance and begins preparing it to be used.
      operationId: createInstance
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateInstanceRequest'
      responses:
        '200':
          description: Instance creation initiated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Operation'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
  /projects/{project}/instances/{instance}:
    get:
      tags:
        - Instances
      summary: Google Cloud Spanner Get an instance
      description: Gets information about a particular instance.
      operationId: getInstance
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Instance'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
    patch:
      tags:
        - Instances
      summary: Google Cloud Spanner Update an instance
      description: Updates an instance, and begins allocating or releasing resources as requested.
      operationId: updateInstance
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateInstanceRequest'
      responses:
        '200':
          description: Instance update initiated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Operation'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
    delete:
      tags:
        - Instances
      summary: Google Cloud Spanner Delete an instance
      description: Deletes an instance. Immediately upon completion of the request, the instance and all its databases are deleted.
      operationId: deleteInstance
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Instance deleted successfully
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
  /projects/{project}/instances/{instance}/databases:
    get:
      tags:
        - Databases
      summary: Google Cloud Spanner List databases
      description: Lists Cloud Spanner databases.
      operationId: listDatabases
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
        - name: pageSize
          in: query
          schema:
            type: integer
        - name: pageToken
          in: query
          schema:
            type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ListDatabasesResponse'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
    post:
      tags:
        - Databases
      summary: Google Cloud Spanner Create a database
      description: Creates a new Cloud Spanner database and starts preparing it to begin serving.
      operationId: createDatabase
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateDatabaseRequest'
      responses:
        '200':
          description: Database creation initiated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Operation'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
  /projects/{project}/instances/{instance}/databases/{database}:
    get:
      tags:
        - Databases
      summary: Google Cloud Spanner Get a database
      description: Gets the state of a Cloud Spanner database.
      operationId: getDatabase
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
        - name: database
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Database'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
    delete:
      tags:
        - Databases
      summary: Google Cloud Spanner Drop a database
      description: Drops (deletes) a Cloud Spanner database.
      operationId: dropDatabase
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
        - name: database
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Database dropped successfully
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.admin
  /projects/{project}/instances/{instance}/databases/{database}/sessions:
    post:
      tags:
        - Sessions
      summary: Google Cloud Spanner Create a session
      description: Creates a new session to be used for requests made with the Spanner API.
      operationId: createSession
      parameters:
        - name: project
          in: path
          required: true
          schema:
            type: string
        - name: instance
          in: path
          required: true
          schema:
            type: string
        - name: database
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Session created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Session'
      security:
        - oauth2:
            - https://www.googleapis.com/auth/cloud-platform
            - https://www.googleapis.com/auth/spanner.data
components:
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://accounts.google.com/o/oauth2/auth
          tokenUrl: https://oauth2.googleapis.com/token
          scopes:
            https://www.googleapis.com/auth/cloud-platform: Full access to Cloud Platform
            https://www.googleapis.com/auth/spanner.admin: Administer Spanner databases
            https://www.googleapis.com/auth/spanner.data: View and manage Spanner data
  schemas:
    Instance:
      type: object
      properties:
        name:
          type: string
          description: The unique name of the instance.
        config:
          type: string
          description: The instance configuration to use.
        displayName:
          type: string
          description: The descriptive name for the instance.
        nodeCount:
          type: integer
          description: The number of nodes allocated to this instance.
        processingUnits:
          type: integer
          description: The number of processing units allocated to this instance.
        state:
          type: string
          enum:
            - STATE_UNSPECIFIED
            - CREATING
            - READY
        labels:
          type: object
          additionalProperties:
            type: string
        createTime:
          type: string
          format: date-time
        updateTime:
          type: string
          format: date-time
    Database:
      type: object
      properties:
        name:
          type: string
        state:
          type: string
          enum:
            - STATE_UNSPECIFIED
            - CREATING
            - READY
            - READY_OPTIMIZING
        createTime:
          type: string
          format: date-time
        versionRetentionPeriod:
          type: string
        earliestVersionTime:
          type: string
          format: date-time
        defaultLeader:
          type: string
        databaseDialect:
          type: string
          enum:
            - DATABASE_DIALECT_UNSPECIFIED
            - GOOGLE_STANDARD_SQL
            - POSTGRESQL
    Session:
      type: object
      properties:
        name:
          type: string
        labels:
          type: object
          additionalProperties:
            type: string
        createTime:
          type: string
          format: date-time
        approximateLastUseTime:
          type: string
          format: date-time
    CreateInstanceRequest:
      type: object
      properties:
        instanceId:
          type: string
        instance:
          $ref: '#/components/schemas/Instance'
      required:
        - instanceId
        - instance
    UpdateInstanceRequest:
      type: object
      properties:
        instance:
          $ref: '#/components/schemas/Instance'
        fieldMask:
          type: string
      required:
        - instance
        - fieldMask
    CreateDatabaseRequest:
      type: object
      properties:
        createStatement:
          type: string
        extraStatements:
          type: array
          items:
            type: string
        databaseDialect:
          type: string
      required:
        - createStatement
    ListInstancesResponse:
      type: object
      properties:
        instances:
          type: array
          items:
            $ref: '#/components/schemas/Instance'
        nextPageToken:
          type: string
    ListDatabasesResponse:
      type: object
      properties:
        databases:
          type: array
          items:
            $ref: '#/components/schemas/Database'
        nextPageToken:
          type: string
    Operation:
      type: object
      properties:
        name:
          type: string
        done:
          type: boolean
        metadata:
          type: object
        error:
          type: object
          properties:
            code:
              type: integer
            message:
              type: string