> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cog888.net/llms.txt
> Use this file to discover all available pages before exploring further.

# Query Credit

> Query player game credit

<Accordion title="Possible Error Codes for this API">
  | Code | Description       |
  | ---- | ----------------- |
  | 0    | Success           |
  | 2    | Invalid parameter |
  | 20   | Secret key error  |
  | 36   | Server error      |
  | 9999 | Unknown error     |
</Accordion>


## OpenAPI

````yaml en/transfer-openapi.json GET /api/v1/dt/credit
openapi: 3.1.0
info:
  title: Transfer Wallet API
  description: Game-API for vendors to obtain game-related data
  version: 1.0.0
servers:
  - url: https://api.example.com
    description: Production server
security: []
paths:
  /api/v1/dt/credit:
    get:
      tags:
        - User API
      summary: Query Credit
      description: Query player game credit
      operationId: queryCredit
      parameters:
        - name: platform_id
          in: query
          required: true
          schema:
            type: string
          description: Platform product ID
        - name: username
          in: query
          required: true
          schema:
            type: string
          description: User account in game
        - name: key
          in: query
          required: true
          schema:
            type: string
          description: md5(username + platform secret key)
        - name: uuid
          in: query
          required: true
          schema:
            type: string
          description: Platform-defined unique request ID, length >= 32 and <= 128 bytes
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  credit:
                    type: string
                    description: Credit
              example:
                credit: '12345'
        '400':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              example:
                error:
                  code: 2
                  msg: >-
                    request hash signature(0FACF22B9E3DB5CDC670A0F7A65BB76A) is
                    error
                  uuid: 9e96610f-5388-42df-b3ed-ba1b3178c63b
components:
  schemas:
    Error:
      type: object
      properties:
        code:
          type: string
          description: Error code
        message:
          type: string
          description: Error message
        data:
          description: Data (usually null)
        status_code:
          type: integer
          description: HTTP status code
        service:
          type: string
          description: Service name

````