# Download QR Code Package Interface

Debugging Tools

Interface should be called on the server side, not in the front end (Weixin Mini Program, web pages, APP, etc.) directly called, specific reference interface call guide

Interface name: intp_marketcode_applycodedownload

Download the generated QR code packet

# 1. How to call

# HTTPS calls

POST https://api.weixin.qq.com/intp/marketcode/applycodedownload?access_token=ACCESS_TOKEN

# Cloud Calls

  • This interface does not support cloud calls

# Third party invocation

  • This interface supports Third Party Platform generation business call.

  • The permission set id to which the interface belongs is: 46

  • When a service provider is authorized by one of the permissions set, it can call on behalf of the merchant by using authorizer_access_token , which can be viewed in the third-party call documentation.

# 2. Request parameters

# Query parametersQuery String parameters

Parameter NametypeRequired to fill inIntroductions
access_tokenstringyesInterface invocation credentials, using access_token , authorizer_access_token

# Request BodyRequest Payload

Parameter NametypeRequired to fill inIntroductions
application_idnumberyesApplication Number
code_startnumberyesStart location, from query QR code application interface
code_endnumberyesEnd position, from query QR code application interface

# 3. Return Parameters

# Response Payload

Parameter NametypeIntroductions
bufferformdataThe file buffer requires base64 decode before decrypting (see 3.1 for decryption)
errcodenumberReturn a status code
errmsgstringError prompts

# 4. Note

Make sure the status of the application is FINISH before downloading.

# 5. Code examples

Example Requests

{
  "application_id":581865877,
  "code_start": 0,
  "code_end": 49999
}

Return an example

{
  "errcode":0,
  "errmsg":"ok",
  "buffer": "ajfiwejfoiawjfijweofi"
}

# 6. Error code

The following is a list of error codes for this interface, other error codes can refer to General error codes

Error codeError DescriptionSolutions
40001invalid credential  access_token isinvalid or not latestaccess_token Invalid or not recently acquired access_token, please confirm the validity of the access_token

# 7. Scope of application

This interface supports "Service Account (required)" account type call.None of the other account types can be invoked without special instructions.