openapi: 3.0.0
info:
  version: 1.0.0
  title: Child chain API
  description: |
    This is the documentation for child chain API.
    Error codes are available in [html](https://github.com/omgnetwork/elixir-omg/blob/master/docs/api_specs/errors.md#error-codes-description) format.
  contact:
    name: OMG Network
    email: engineering@omg.network
  license:
    name: 'Apache 2.0: https://www.apache.org/licenses/LICENSE-2.0'
    url: 'https://omg.network/'
tags:
  - name: Block
    description: Block related API.
  - name: Transaction
    description: Transaction related API.
  - name: Fees
    description: Fees related API.
servers:
  - url: 'http://localhost:9656/'
paths:
  /alarm.get:
    get:
      tags:
        - Alarm
      summary: 'Provides alarms related to system memory, cpu and storage and application specific alarms.'
      description: |
        **Note:** Service operator alarms.
      operationId: alarm_get
      responses:
        '200':
          description: System alarms
          content:
            application/json:
              schema:
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        type: array
                        items:
                          type: array
                          items:
                            anyOf:
                              - type: object
                                properties:
                                  ethereum_connection_error:
                                    type: object
                                    properties:
                                      node:
                                        type: string
                                      reporter:
                                        type: string
                              - type: object
                                properties:
                                  invalid_fee_source:
                                    type: object
                                    properties:
                                      node:
                                        type: string
                                      reporter:
                                        type: string
                              - type: object
                                properties:
                                  statsd_client_connection:
                                    type: object
                                    properties:
                                      node:
                                        type: string
                                      reporter:
                                        type: string
                              - type: object
                                properties:
                                  statsd_client_connection:
                                    type: array
                                    items:
                                      type: string
                                    default: []
                              - type: object
                                properties:
                                  disk_almost_full:
                                    type: string
                    example:
                      data:
                        - disk_almost_full: /dev/null
                          ethereum_connection_error: {}
                          ethereum_stalled_sync: {}
                          system_memory_high_watermark: []
        '500':
          description: Returns an internal server error
          content:
            application/json:
              schema:
                description: The response schema for an error
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        description: The object schema for an error
                        type: object
                        properties:
                          object:
                            type: string
                          code:
                            type: string
                          description:
                            type: string
                          messages:
                            type: object
                        required:
                          - object
                          - code
                          - description
                          - messages
                    required:
                      - data
                    example:
                      success: false
                      data:
                        object: error
                        code: 'server:internal_server_error'
                        description: Something went wrong on the server
                        messages:
                          error_key: error_reason
  /configuration.get:
    get:
      tags:
        - Configuration
      summary: Provides configuration values
      description: |
        **Note:** Configuration values.
      operationId: configuration_get
      responses:
        '200':
          description: Configuration response
          content:
            application/json:
              schema:
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        type: array
                        items:
                          type: object
                          properties:
                            deposit_finality_margin:
                              type: integer
                              format: int256
                            contract_semver:
                              type: string
                            network:
                              type: string
                    example:
                      data:
                        - deposit_finality_margin: 10
                          contract_semver: 1.0.0.1+a1s29s8
                          network: RINKEBY
        '500':
          description: Returns an internal server error
          content:
            application/json:
              schema:
                description: The response schema for an error
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        description: The object schema for an error
                        type: object
                        properties:
                          object:
                            type: string
                          code:
                            type: string
                          description:
                            type: string
                          messages:
                            type: object
                        required:
                          - object
                          - code
                          - description
                          - messages
                    required:
                      - data
                    example:
                      success: false
                      data:
                        object: error
                        code: 'server:internal_server_error'
                        description: Something went wrong on the server
                        messages:
                          error_key: error_reason
  /transaction.submit:
    post:
      tags:
        - Transaction
      summary: This endpoint submits a signed transaction to the child chain.
      description: |
        Normally you should call the Watcher's Transaction - Submit instead of this. The Watcher's version performs various security and validation checks before submitting the transaction, so is much safer. However, if the Watcher is not available this version exists.
      operationId: submit
      requestBody:
        description: Signed transaction RLP-encoded to bytes and HEX-encoded to string
        required: true
        content:
          application/json:
            schema:
              title: TransactionSubmitBodySchema
              type: object
              properties:
                transaction:
                  type: string
              required:
                - transaction
              example:
                transaction: 0xf8d083015ba98080808080940000...
      responses:
        '200':
          description: Transaction submission successful response
          content:
            application/json:
              schema:
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        type: object
                        properties:
                          blknum:
                            type: integer
                            format: int64
                          txindex:
                            type: integer
                            format: int16
                          txhash:
                            type: string
                    example:
                      data:
                        blknum: 123000
                        txindex: 111
                        txhash: '0xbdf562c24ace032176e27621073df58ce1c6f65de3b5932343b70ba03c72132d'
        '500':
          description: Returns an internal server error
          content:
            application/json:
              schema:
                description: The response schema for an error
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        description: The object schema for an error
                        type: object
                        properties:
                          object:
                            type: string
                          code:
                            type: string
                          description:
                            type: string
                          messages:
                            type: object
                        required:
                          - object
                          - code
                          - description
                          - messages
                    required:
                      - data
                    example:
                      success: false
                      data:
                        object: error
                        code: 'server:internal_server_error'
                        description: Something went wrong on the server
                        messages:
                          error_key: error_reason
  /block.get:
    post:
      tags:
        - Block
      summary: This endpoint retrieves a specific block from child chain by its hash which was published on root chain.
      operationId: block_get
      requestBody:
        description: HEX-encoded hash of the block
        required: true
        content:
          application/json:
            schema:
              title: GetBlockBodySchema
              type: object
              properties:
                hash:
                  type: string
              required:
                - hash
              example:
                hash: '0x0017372421f9a92bedb7163310918e623557ab5310befc14e67212b660c33bec'
      responses:
        '200':
          description: Block succcessful response
          content:
            application/json:
              schema:
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        type: object
                        properties:
                          transactions:
                            type: array
                            items:
                              type: string
                          hash:
                            type: string
                          blknum:
                            type: integer
                            format: int64
                    example:
                      data:
                        blknum: 123000
                        hash: '0x2733e50f526ec2fa19a22b31e8ed50f23cd1fdf94c9154ed3a7609a2f1ff981f'
                        transactions:
                          - 0xf8d083015ba98080808080940000...
        '500':
          description: Returns an internal server error
          content:
            application/json:
              schema:
                description: The response schema for an error
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        description: The object schema for an error
                        type: object
                        properties:
                          object:
                            type: string
                          code:
                            type: string
                          description:
                            type: string
                          messages:
                            type: object
                        required:
                          - object
                          - code
                          - description
                          - messages
                    required:
                      - data
                    example:
                      success: false
                      data:
                        object: error
                        code: 'server:internal_server_error'
                        description: Something went wrong on the server
                        messages:
                          error_key: error_reason
  /fees.all:
    post:
      tags:
        - Fees
      summary: This endpoint retrieves the list of fee tokens currently supported by the childchain and the current amount needed to perform a transaction.
      operationId: fees_all
      requestBody:
        description: 'An optional array of currencies to filter, raises an error if one of the currencies is not supported.'
        required: false
        content:
          application/json:
            schema:
              title: FeesAllBodySchema
              type: object
              properties:
                currencies:
                  type: array
                  items:
                    type: string
                tx_types:
                  type: array
                  items:
                    type: integer
              example:
                currencies:
                  - '0x0000000000000000000000000000000000000000'
                tx_types:
                  - 1
      responses:
        '200':
          description: List of all supported fees response
          content:
            application/json:
              schema:
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        type: object
                        additionalProperties:
                          type: array
                          items:
                            type: object
                            properties:
                              currency:
                                type: string
                              amount:
                                type: integer
                                format: int256
                              subunit_to_unit:
                                type: integer
                                format: int256
                              pegged_currency:
                                type: string
                              pegged_amount:
                                type: integer
                                format: int256
                              pegged_subunit_to_unit:
                                type: integer
                                format: int256
                              updated_at:
                                type: string
                                format: date-time
                    example:
                      data:
                        '1':
                          - currency: '0x0000000000000000000000000000000000000000'
                            amount: 220000000000000
                            subunit_to_unit: 1000000000000000000
                            pegged_currency: USD
                            pegged_amount: 4
                            pegged_subunit_to_unit: 100
                            updated_at: '2019-01-01T10:10:10+00:00'
        '500':
          description: Returns an internal server error
          content:
            application/json:
              schema:
                description: The response schema for an error
                allOf:
                  - description: The response schema for a successful operation
                    type: object
                    properties:
                      service_name:
                        type: string
                      version:
                        type: string
                      success:
                        type: boolean
                      data:
                        type: object
                    required:
                      - version
                      - success
                      - data
                      - service_name
                    example:
                      service_name: child_chain
                      version: 1.0+abcdefa
                      success: true
                      data: {}
                  - type: object
                    properties:
                      data:
                        description: The object schema for an error
                        type: object
                        properties:
                          object:
                            type: string
                          code:
                            type: string
                          description:
                            type: string
                          messages:
                            type: object
                        required:
                          - object
                          - code
                          - description
                          - messages
                    required:
                      - data
                    example:
                      success: false
                      data:
                        object: error
                        code: 'server:internal_server_error'
                        description: Something went wrong on the server
                        messages:
                          error_key: error_reason