Add GetContractById.md and GetContractHashes.md

docs/en-us/reference/scapi/framework/native/ContractManagement/GetContractById.md

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+# ContractManagement.GetContractById Method
+
+Maps the specified ID to the deployed contract.
+
+Namespace: [Neo.SmartContract.Framework.Native](../../native.md)
+
+Assembly: Neo.SmartContract.Framework
+
+## Syntax
+
+```c#
+public ContractState GetContractById(int id);
+```
+
+Parameters:
+
+- id: Contract ID. Negative numbers represent native contracts, while positive numbers represent normal contracts (non-native deployed contracts).
+
+## Example
+
+Contract:
+
+```c#
+public class Contract1 : SmartContract
+{
+    public static string MyMethod(int id)
+    {
+        var contract = ContractManagement.GetContractById(id);
+        return contract.Manifest.Name;
+    }
+}
+```
+
+Invoke from neo-cli:
+
+```
+invoke 0x425d355a8a62eebf961884c91c6567d3ff1ab0dc myMethod [{"type":"Integer","value":"-1"}]
+```
+
+Invoke from RPC:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 1,
+    "method": "invokefunction",
+    "params": [
+        "0x425d355a8a62eebf961884c91c6567d3ff1ab0dc",
+        "myMethod",
+        [
+            {
+                "type": "Integer",
+                "value": "-1"
+            }
+        ]
+    ]
+}
+```
+
+Response body:
+
+```json
+[
+    {
+        "type":"ByteString",
+        "value":"Q29udHJhY3RNYW5hZ2VtZW50"
+    }
+]
+```
+
+Response description:
+
+According to the contract code, the contract name associated with the requested ID is returned here.
+
+The string `Q29udHJhY3RNYW5hZ2VtZW50`, when decoded with base64, yields `ContractManagement`.
+
+[Back](../ContractManagement.md)
+

docs/en-us/reference/scapi/framework/native/ContractManagement/getContractHashes.md

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+# ContractManagement.GetContractById Method
+
+Gets the hashes of all non-native deployed contracts.
+
+Namespace: [Neo.SmartContract.Framework.Native](../../native.md)
+
+Assembly: Neo.SmartContract.Framework
+
+## Syntax
+
+```c#
+private IIterator GetContractHashes()
+```
+
+Return:
+
+Iterator with hashes of all deployed contracts.
+
+## Example
+
+Contract:
+
+```c#
+public static Iterator<(int, UInt160)> MyMethod()
+{
+    return ContractManagement.GetContractHashes();
+}
+```
+
+Invoke from RPC:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 1,
+    "method": "invokefunction",
+    "params": [
+        "0xc04ff111aa88cc5239cf36360cb298a9a3eae586",
+        "myMethod",
+        []
+    ]
+}
+```
+
+Response body:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 1,
+    "result": {
+        "script": "wh8MCG15TWV0aG9kDBSG5eqjqZiyDDY2zzlSzIiqEfFPwEFifVtS",
+        "state": "HALT",
+        "gasconsumed": "2950200",
+        "exception": null,
+        "notifications": [],
+        "stack": [
+            {
+                "type": "InteropInterface",
+                "interface": "IIterator",
+                "id": "0cd0591b-cf5a-4517-a060-779269f3577d"
+            }
+        ],
+        "session": "4829327b-8c1d-439e-becc-1360453839f6"
+    }
+}
+```
+
+Invoke again from RPC to get the specific value of the iterator. For more information, refer to the command [traverseiterator](../../../../rpc/latest-version/api/traverseiterator.md).
+
+```json
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "method": "traverseiterator",
+  "params": [
+    "4829327b-8c1d-439e-becc-1360453839f6",
+    "0cd0591b-cf5a-4517-a060-779269f3577d",
+    10
+  ]
+}
+```
+
+Response body:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 1,
+    "result": [
+        {
+            "type": "Struct",
+            "value": [
+                {
+                    "type": "ByteString",
+                    "value": "AAAAAQ=="
+                },
+                {
+                    "type": "ByteString",
+                    "value": "3LAa/9NnZRzJhBiWv+5iilo1XUI="
+                }
+            ]
+        },
+        {
+            "type": "Struct",
+            "value": [
+                {
+                    "type": "ByteString",
+                    "value": "AAAAAg=="
+                },
+                {
+                    "type": "ByteString",
+                    "value": "gwlF8xm/6snmJCfRzDiaIiu40pI="
+                }
+            ]
+        },
+        {
+            "type": "Struct",
+            "value": [
+                {
+                    "type": "ByteString",
+                    "value": "AAAAAw=="
+                },
+                {
+                    "type": "ByteString",
+                    "value": "oDlHkjZPmX2hcY9E7b0Wdwwoxa8="
+                }
+            ]
+        },
+        {
+            "type": "Struct",
+            "value": [
+                {
+                    "type": "ByteString",
+                    "value": "AAAABA=="
+                },
+                {
+                    "type": "ByteString",
+                    "value": "huXqo6mYsgw2Ns85UsyIqhHxT8A="
+                }
+            ]
+        }
+    ]
+}
+```
+
+Response description:
+
+Each element of the returned array is a contract message containing the contract ID and Hash.
+
+Base64 string `AAAABA==` to hexadecimal string is `00000004`.
+
+Base64 script hash `huXqo6mYsgw2Ns85UsyIqhHxT8A=` to script hash (little-endian) is `86e5eaa3a998b20c3636cf3952cc88aa11f14fc0`.
+
+[Back](../ContractManagement.md)