| Code | Possible Return message | Description |
|---|---|---|
| -32700 | Parse error | Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text. |
| -32600 | Invalid Request | The JSON sent is not a valid Request object. |
| -32601 | Method not found | The method does not exist / is not available. |
| -32602 | Invalid params | Invalid method parameter(s). |
| -32603 | Internal error | Internal JSON-RPC error. |
| -32000 to -32099 | Server error. Reserved for implementation-defined server-errors. |
| Code | Possible Return message | Description |
|---|---|---|
| 100 | X doesn't exist | Should be used when something which should be there is not found. (Doesn't apply to eth_getTransactionBy* and eth_getBlock*. They return a success with value null) |
| 101 | Rejected | Should be used when an action was rejected, e.g. because of its content (too long contract code, containing wrong characters ?, should differ from -32602 - Invalid params). |
| 326009 | Timeout | Should be used when an action timedout. |
| 400 |
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