#### URL Expired

The URL for this request expired after 30 days.

Optional metadata when starting an operation.

**OperationID**  
string  
Unique operation identifier.

**InitiatorID**  
string  
Initiator identifier.

**UserID**  
string  
required

**UserName**  
string  
required

# ``` 200      Operation started

# ``` 400      Invalid input, validation error, or malformed request

# ``` 500      Internal server error. May include an `errorCode` (M-prefixed) and `data` from the MPA error code system. See `cwpapi/errors.go` for codes.

---

ShellNodeRubyPHPPython

**Base URL**  
https://api.your-wallet.blockdaemon-wallet.com/api/cwp/operations/start/registerUser

```
xxxxxxxxxx

curl --request POST \

--url https://api.your-wallet.blockdaemon-wallet.com/api/cwp/operations/start/registerUser \

--header 'accept: application/json' \

--header 'content-type: application/json'
```

Click `Try It!` to start a request and see the response here! Or choose an example:

**application/json**  
``200``400``500

---
