# eth\_getLogs

**Parameters**

`Object` - The filter options:

* `fromBlock`: `QUANTITY|TAG` - (optional, default: "latest") Value:
* Integer block number
* "latest" for the last mined block
* `address`: `DATA|Array`, 20 Bytes - (optional) Contract address or a list of addresses from which logs should originate.
* `topics`: `Array` of `DATA`, - (optional) Array of 32 Bytes DATA topics.
  * Topics are order-dependent. Each topic can also be an array of DATA with "or" options.
* `blockHash`: `DATA`, 32 Bytes - (optional) With the addition of EIP-234 (Geth >= v1.8.13 or Parity >= v2.1.0), blockHash is a new filter option which restricts the logs returned to the single block with the 32-byte hash blockHash. Using blockHash is equivalent to fromBlock = toBlock = the block number with hash `blockHash`. **If blockHash is present in the filter criteria, then neither `fromBlock` nor `toBlock` are allowed.**

```javascript
params: [
  {
    "address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907",
    "topics": [
      "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
    ],
    "blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb"
  }
]
```

**Returns**

`Array` - Array of log objects, or an empty array if nothing has changed since last poll.

* `removed`: `TAG` - `true` when the log was removed, due to a chain reorganization. `false` if its a valid log.
* `logIndex`: `QUANTITY` - integer of the log index position in the block. `null` when its pending log.
* `transactionIndex`: `QUANTITY` - integer of the transactions index position log was created from. `null` when its pending log.
* `transactionHash`: `DATA`, 32 Bytes - hash of the transactions this log was created from. `null` when its pending log.
* `blockHash`: `DATA`, 32 Bytes - hash of the block where this log was in. `null` when its pending. `null` when its pending log.
* `blockNumber`: `QUANTITY` - the block number where this log was in. `null` when its pending. `null` when its pending log.
* `address`: `DATA`, 20 Bytes - address from which this log originated.
* `data`: `DATA` - contains one or more 32 Bytes non-indexed arguments of the log.
* `topics`: `Array of DATA` - Array of 0 to 4 32 Bytes `DATA` of indexed log arguments.
  * In *solidity*: The first topic is the *hash* of the signature of the event (e.g. `Deposit(address,bytes32,uint256)`), except you declare the event with the `anonymous` specifier.

**Request example**

{% tabs %}
{% tab title="Curl" %}

```bash
curl https://ethereum.api.watchdata.io/node/jsonrpc?api_key=your_api_key
-X POST \
-d '{"jsonrpc":"2.0","method":"eth_getLogs","params":[{"address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907","topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"],"blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb"}],"id":0}'
```

{% endtab %}

{% tab title="Postman" %}

```json
URL: https://ethereum.api.watchdata.io/node/jsonrpc?api_key=your_api_key
RequestType: POST
Body: 
{
    "jsonrpc":"2.0",
    "method":"eth_getLogs",
    "params":[{"address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907","topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"],"blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb"}],
    "id":0
}
```

{% endtab %}
{% endtabs %}

**Result**

```javascript
{
    "id": 0,
    "jsonrpc": "2.0",
    "result": [
        {
            "address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907",
            "blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb",
            "blockNumber": "0x429d3b",
            "data": "0x000000000000000000000000000000000000000000000000000000012a05f200",
            "logIndex": "0x56",
            "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
                "0x00000000000000000000000000b46c2526e227482e2ebb8f4c69e4674d262e75",
                "0x00000000000000000000000054a2d42a40f51259dedd1978f6c118a0f0eff078"
            ],
            "transactionHash": "0xab059a62e22e230fe0f56d8555340a29b2e9532360368f810595453f6fdd213b",
            "transactionIndex": "0xac",
            "removed": false
        }
    ]
}
```


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.watchdata.io/blockchain-apis/ethereum-api/eth_getlogs.md?ask=<question>
```

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