# eth_getLogs - Ethereum

Returns an array of all logs matching a given filter object. For more information about eth_getLogs check out our Deep Dive into eth_getLogs page.

# Parameters

Object - The filter options:

* fromBlock: QUANTITY|TAG - (optional, default: "latest") Value:\
  Integer block number
  * "latest" for the last mined block.
  * "pending", "earliest" for not yet mined transactions.
* toBlock: QUANTITY|TAG - (optional, default: "latest") Value:
  * Integer block number.
  * "latest" for the last mined block.
  * "pending", "earliest" for not yet mined transactions.
* 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.
  * Check out more details on how to format topics in [eth\_newFilter](https://unifra.readme.io/reference/eth_newFilter).
* 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.**

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

***

# Returns

Array of DATA, 20 Bytes - Addresses owned by the client.

***

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

* For filters created with eth\_newBlockFilter the return are block hashes (DATA, 32 Bytes), e.g. \["0x3454645634534..."].
* For filters created with eth\_newPendingTransactionFilter the return are transaction hashes (DATA, 32 Bytes), e.g. \["0x6345343454645..."].
* For filters created with eth\_newFilter logs are objects with following params:
  * 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.

# Example

## Request

```curl
curl https://eth-mainnet.unifra.io/v1/your-api-key \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_getLogs","params":[{"address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907","topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"],"blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb"}],"id":0}'
```
```Text Postman
URL: https://eth-mainnet.unifra.io/v1/your-api-key
RequestType: POST
Body:
{
    "jsonrpc":"2.0",
    "method":"eth_getLogs",
    "params":[{"address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907","topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"],"blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb"}],
    "id":0
}
```

## Result

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

# OpenAPI definition

```json
{
  "openapi": "3.1.0",
  "info": {
    "title": "ethereum-api",
    "version": "1.0"
  },
  "servers": [
    {
      "url": "https://eth-mainnet.unifra.io/v1"
    }
  ],
  "security": [
    {}
  ],
  "paths": {
    "/{your-api-key}": {
      "post": {
        "summary": "web3_sha3 - Ethereum",
        "description": "Returns Keccak-256 (not the standardized SHA3-256) of the given data.",
        "operationId": "web3_sha3",
        "parameters": [
          {
            "name": "your-api-key",
            "in": "path",
            "schema": {
              "type": "string"
            },
            "required": true
          }
        ],
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "jsonrpc": {
                    "type": "string",
                    "default": "2.0"
                  },
                  "method": {
                    "type": "string",
                    "default": "web3_sha3"
                  },
                  "params": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  },
                  "id": {
                    "type": "integer",
                    "default": 0,
                    "format": "int32"
                  }
                }
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "200",
            "content": {
              "application/json": {
                "examples": {
                  "Result": {
                    "value": "{}"
                  }
                },
                "schema": {
                  "type": "object",
                  "properties": {}
                }
              }
            }
          },
          "400": {
            "description": "400",
            "content": {
              "application/json": {
                "examples": {
                  "Result": {
                    "value": "{}"
                  }
                },
                "schema": {
                  "type": "object",
                  "properties": {}
                }
              }
            }
          }
        },
        "deprecated": false
      }
    }
  },
  "x-readme": {
    "headers": [],
    "explorer-enabled": true,
    "proxy-enabled": true
  },
  "x-readme-fauxas": true
}
```