Below you can find possible error codes that can occur while working with nodes, their explanations, and solutions.
| Code | Message | Solution |
|---|
| 400 | Bad Request | Your request is invalid. Make sure your request is properly formatted and this is a valid request. |
| 401 | Authorization Required | The credentials you provide to access your node endpoint are absent or incorrect. See how to know your node credentials. |
| 404 | Not Found | Contact support to check if you are accessing the correct node and if the node is healthy. |
| 404 | DEPTH_ZERO_SELF_SIGNED_CERT | Contact support to check if the gateway is healthy. |
| 413 | Request Entity Too Large | The default limit of the request body size is 1 MB. Reduce the request body size. |
| 429 | Too Many Requests | You hit the default node HTTP connections limit. Reduce the number of requests.
Or you hit the rate limit on your plan. Upgrade the plan. |
| 499 | No Response From Node | Increase the client-side time-out. Contact support if the issue persists. |
| 500 | Internal Server Error | Contact support to check if you are accessing the correct node and if the gateway is healthy. |
| 500 | ECONNREFUSED | Contact support. |
| 502 | Bad Gateway | Contact support to check if your node is experiencing resource constraints or if the node is healthy. |
| 503 | Service Temporarily Unavailable | Contact support to check if your node is experiencing resource constraints. |
| 504 | Gateway Time-Out | Contact support to check if your node is experiencing resource constraints. Or consider getting a dedicated gateway. |
| Code | Message | Solution |
|---|
| -32700 | Parse Error | Your JSON cannot be parsed on the server side. Make sure your JSON is properly formatted. |
| -32600 | Invalid Request | Your JSON-RPC request is not properly formed. See node API reference. |
| -32601 | Method Not Found | The method you are trying to call is not available on the node. See also API namespaces. |
| -32602 | Invalid Params | Your request has invalid parameters. See node API reference. |
| -32603 | Internal Error | A JSON-RPC error that means your request cannot be processed and usually has a -32000 error with details on why the request cannot be processed. |
| -32000 | Server Error | The implementation-defined error on the server. The node implementation shows why it cannot process the request. For example, see EIP-1474. |
