Error Codes

HTTP Status Codes

Status Codes

In addition to the standard Ethereum JSON-RPC error codes, ZAN will return the following status codes for HTTP requests:

Code	Description	Corresponding Error Code	Solution
400	Bad Request	-32700 -32600 -32601 -32602	Your request is invalid. Double-check your JSON-RPC body.
401	Unauthorized	-32000	You must authenticate your request with an API key. If you do not have one, see Creating your API key on the ZAN platform to create one, and optionally set up a secret key for additional security.
403	Forbidden	-32002 -32004 -32005 -32006 -32007	You've hit your capacity limit, or your request was rejected by your app's whitelist settings.
429	Too Many Requests	-32003	You've exceeded your concurrent request capacity or Credits per second capacity, see Use limits of credits.
500	Internal Server Error	-32603 -32008	We're unable to process your request right now. Get in touch with us if you see this.

Example Response

// Example 401 Https Status Error
{
    "error": {
        "code": -32000,
        "message": "apikey check; apikey not exist"
    },
    "id": 1,
    "jsonrpc": "2.0"
}

Standard JSON-RPC Errors

Error Codes

Error Code	Message	Description
-32700	Parse error	Invalid JSON
-32600	Invalid Request	JSON is not a valid request object
-32601	Method not found	Method does not exist
-32602	Invalid params	Invalid method parameters
-32603	Internal error	Internal JSON-RPC error

Example Response

{
    "error": {
        "code": -32602,
        "message": "too many arguments, want at most 0"
    },
    "id": 1,
    "jsonrpc": "2.0"
}

Custom JSON-RPC Errors

Error Codes

Error Code	Message	Description
-32000	Unauthorized	Request unauthorized
-32001	Resource not found	Requested resource not found
-32002	Whitelist limited	Whitelist limited
-32003	Cu limited	Cu limited per second
-32004	Rate limited	Service rate limited
-32005	Limit exceeded	Limit exceeded credit plan
-32006	Malicious request	Too many malicious request
-32007	Method limited	Method request limited
-32008	Invalid error	Invalid error

Example Response

// Example 403 Https Status Error
{
    "error": {
        "code": -32005,
        "message": "user credit plan check; credit request service not available, msg:credit consumption has reached the maximum of the package"
    },
    "id": 1,
    "jsonrpc": "2.0"
}