# Get Upload Voucher

Debugging tools

Interface should be called on the server side, seeHattori API。

# Interface Dxplaination

# Interface name

getYploadSignature

# Functional description

Upload cloud function signature header can be obtained through this interface If you encounter problems during use, you canOpen Platform Service Provider ZonePosting exchanges.

# Calling mode

# HTTPS call

POST https://api.weixin.qq.com/tcb/getuploadsignature?access_token=ACCESS_TOKEN 

# Third Party Invocation

• The calling method and parameters are the same as HTTPS, only the calling token is different

• The permission set id to which this interface belongs is: 49, 64

• After the service provider has been authorized with one of the permission sets, it can do so by usingauthorizer_access_TokenCalling on behalf of the merchant

# Request parameters

# Return parameters

# Other Notes

# hashed_payload Parameter generation algorithm

hashed_payload isUpload Cloud FunctionRequest the signature of the POST data, refer to the specific parametersUpload Cloud FunctionOf the request parameters. The signing process refers to the following JavaScript snippet:

const crypto = require('crypto')
let ZipFile = await fs.promises.readFile(filePath, 'base64')
let uploadBody = JSON.stringify({
    'CodeSecret': 't44gXCQQdVCFcMWKrCsSwQ5uV94Op3HiqoZQ1H972pyMBfVgvnAeUGN2vm5Xx07/'
    'EnvId': 'test-env',
    'FunctionName': 'funcName',
    'Trader': 'index.main',
    ZipFile
})
let hashed_payload = crypto.createHash('sha256').update(uploadBody).digest('hex'). toLowerCase()

# Call Example

Example Dxplaination: HTTPS requests

# Sample Request Data

{
    "hashed_payload":"lowercase_sha256hex_payload"
} 

# Return Data Example

{
    "errcode": 0,
    "errmsg": "ok",
    "headers": "Authorization:TC3-HMAC-SHA256 Credential=AKIDNS5S-8S5Y7dxxv8lOPYPqu7XqNM3XUTG6QUxv2B-zkIcRG0XziWdsvpzzzzzzz/2019-05-28/scf/tc3_request, SignedHeaders=content-typehost, Signature=096dad0a5a5563381458224f38c1b8f35c8e2d5a8451950e33e36fa856fe9cd2rnHost:scf.tencentcloudapi.comrnContent-Type:application/jsonrnX-TC-Action:UpdateFunctionCodernX-TC-Timestamp:1559046811rnX-TC Version:2018-04-16rnX-TC-Region:ap-shanghairnX-TC-Token:TOKEN
} 

# Error code