Polkadot

Polkadot Log API

The Log API from Polkadot — 2 operation(s) for log.

GitHub OpenAPI

Operations 2

POST /api/scan/log Get block log by index
POST /api/v2/scan/logs List block logs

Documentation

📖
Documentation
https://support.subscan.io/
📖
RateLimits
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
📖
Documentation
https://docs.polkadot.com/chain-interactions/query-data/query-rest/
📖
Documentation
https://github.com/paritytech/polkadot-rest-api

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/openapi/polkadot-log-api-openapi.yml

SDKs

📦
GitHubRepository
https://github.com/paritytech/substrate-api-sidecar
📦
GitHubRepository
https://github.com/paritytech/polkadot-rest-api

Other Resources

🔗
PostmanCollection
https://documenter.getpostman.com/view/1618960/TVCe1oRU
🔗
Plans
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
🔗
FinOps
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml

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OpenAPI Specification

polkadot-log-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  contact:
    email: bruce.sun@itering.io
    name: API Support
    url: http://www.swagger.io/support
  description: This is a subscan API server.
  license:
    name: Apache 2.0
    url: http://www.apache.org/licenses/LICENSE-2.0.html
  termsOfService: http://swagger.io/terms/
  title: Subscan Log API
  version: '1.0'
servers:
- url: https://https://www.subscan.io/
tags:
- name: Log
paths:
  /api/scan/log:
    post:
      description: Returns a block log record by log index.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/internal_server_http.J'
                - properties:
                    data:
                      $ref: '#/components/schemas/subscan_internal_model.ChainLogJson'
                  type: object
      summary: Get block log by index
      tags:
      - Log
      x-synonyms:
      - block
      - log
      - index
      - scan
      - block height
      - block number
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/internal_server_http.logInfoParam'
        description: params
        required: true
  /api/v2/scan/logs:
    post:
      description: Returns paginated block logs filtered by block range, engine ID, and log type.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/internal_server_http.J'
                - properties:
                    data:
                      properties:
                        count:
                          type: integer
                        logs:
                          items:
                            $ref: '#/components/schemas/subscan_internal_model.ChainLogJson'
                          type: array
                      type: object
                  type: object
      summary: List block logs
      tags:
      - Log
      x-synonyms:
      - block
      - logs
      - log
      - scan
      - block height
      - block number
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/internal_server_http.logsParams'
        description: params
        required: true
components:
  schemas:
    subscan_internal_model.ChainLogJson:
      properties:
        block_num:
          type: integer
        data:
          type: string
        engine:
          type: string
        id:
          type: integer
        log_index:
          type: string
        log_type:
          type: string
      type: object
    internal_server_http.logsParams:
      properties:
        after_id:
          type: integer
        block_num:
          minimum: 0
          type: integer
        block_range:
          type: string
        engine:
          type: string
        page:
          description: Page number, starting from 0
          example: 0
          minimum: 0
          type: integer
        row:
          description: Data size per page
          example: 10
          maximum: 100
          minimum: 1
          type: integer
        type:
          type: string
      type: object
    internal_server_http.logInfoParam:
      properties:
        log_index:
          type: string
      required:
      - log_index
      type: object
    internal_server_http.J:
      properties:
        code:
          example: 0
          type: integer
        data: {}
        generated_at:
          example: 1699600641
          type: integer
        message:
          example: Success
          type: string
      type: object