doc/developer-guide/jsonrpc/jsonrpc-node-errors.en.rst

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   http://www.apache.org/licenses/LICENSE-2.0

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   under the License.

.. include:: ../../common.defs

.. highlight:: cpp
.. default-domain:: cpp

.. _JSONRPC: https://www.jsonrpc.org/specification
.. _JSON: https://www.json.org/json-en.html


.. _jsonrpc-node-errors:


JSON RPC errors
***************

A list of codes and descriptions of errors that could be send back from the JSONRPC server. JSONRPC response messages could contains
different set of errors in the following format:

.. note::

   Check  :ref:`jsonrpc-error` for details about the error structure.


.. code-block::json

   {
      "error": {
         "code": -32601,
         "message": "Method not found"
      },
      "id": "ded7018e-0720-11eb-abe2-001fc69cc946",
      "jsonrpc": "2.0"
   }

In some cases the data field could be populated:

.. code-block:: json

   {
      "jsonrpc": "2.0",
      "error":{
         "code": 10,
         "message": "Unauthorized action",
         "data":[
            {
               "code": 2,
               "message":"Denied privileged API access for uid=XXX gid=XXX"
            }
         ]
      },
      "id":"5e273ec0-3e3b-4a81-90ec-aeee3d38073f"
   }


.. _jsonrpc-node-errors-standard-errors:

Standard errors
===============

=============== ========================================= =========================================================
Id              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 `JSONRPC`_ error.
=============== ========================================= =========================================================

.. _jsonrpc-node-errors-custom-errors:

Custom errors
=============

The following error list are defined by the server.

=============== ========================================= =========================================================
Id              Message                                   Description
=============== ========================================= =========================================================
1               Invalid version, 2.0 only                 The server only accepts version field equal to `2.0`.
2               Invalid version type, should be a string  Version field should be a literal string.
3               Missing version field                     No version field present, version field is mandatory.
4               Invalid method type, should be a string   The method field should be a literal string.
5               Missing method field                      No method field present, method field is mandatory.
6               Invalid params type. A Structured value   Params field should be a structured type, list or structure.
                is expected                               This is similar to `-32602`
7               Invalid id type                           If field should be a literal string.
8               Use of null as id is discouraged          Id field value is null, as per the specs this is discouraged,
                                                          the server will not accept it.
9               Error during execution                    An error occurred during the execution of the RPC call.
                                                          This error is used as a generic High level error. The specifics
                                                          details about the error, in most cases are specified in the
                                                          ``data`` field.
10              Unauthorized action                       The rpc method will not be invoked because the action is not
                                                          permitted by some constraint or authorization issue.Check
                                                          :ref:`jsonrpc-node-errors-unauthorized-action` for mode details.
11              Use of an empty string as id is           An empty string "" as an id will not be accepted by the server.
                discouraged
=============== ========================================= =========================================================

.. _jsonrpc-node-errors-unauthorized-action:

Unauthorized action
-------------------

Under this error, the `data` field could be populated with the following errors, eventually more than one could be in set.

.. code-block:: json

   "data":[
      {
         "code":2,
         "message":"Denied privileged API access for uid=XXX gid=XXX"
      }
   ]

=============== ========================================= =========================================================
Id              Message                                   Description
=============== ========================================= =========================================================
1               Error getting peer credentials: {}        Something happened while trying to get the peers credentials.
                                                          The error string will show the error code(`errno`) returned by the
                                                          server.
2               Denied privileged API access for uid={}   Permission denied. Unix Socket credentials were checked and they haven't meet
                gid={}                                    the required policy. The handler was configured as restricted
                                                          and the socket credentials failed to validate. Check TBC for
                                                          more information.
=============== ========================================= =========================================================