# newFilter

#### REQUEST PAYLOAD

`FILTER OBJECT`

`address` *\[optional]* - a contract address or a list of addresses from which logs should originate.

`fromBlock` *\[optional, default is "latest"]* - an integer block number, or the string "latest", "earliest" or "pending"

`toBlock` *\[optional, default is "latest"]* - an integer block number, or the string "latest", "earliest" or "pending"

`topics`*\[optional]* - Array of 32 Bytes DATA topics. Topics are order-dependent.

**A note on specifying topic filters:** Topics are order-dependent. A transaction with a log with topics \[A, B] will be matched by the following topic filters:

* \[] - anything"
* \[A] - A in first position (and anything after)
* \[null, B] - anything in first position AND B in second position (and anything after)
* \[A, B] - A in first position AND B in second position (and anything after)"
* \[\[A, B], \[A, B]] - (A OR B) in first position AND (A OR B) in second position (and anything after)

Filter IDs will be valid for up to fifteen minutes, and can polled by any connection using the same v3 project ID.

#### EXAMPLE

```
## JSON-RPC over HTTPS POST
curl https://rbc-rpc.com \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_newFilter","params":[{"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]}],"id":1}'

## JSON-RPC over WSS
wscat -c ws://rbc-rpc.com
>{"jsonrpc":"2.0","method":"eth_newFilter","params":[{"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]}],"id":1}
```

### RESPONSE

#### RESULT FIELDS

`FILTER ID` - A string denoting the newly created filter id

#### BODY

```
{
    "jsonrpc":"2.0",
    "id":1,
    "result":"0x10ff0bfba9472c87932c56632eef8f5cc70910e8e71d"
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

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

```
GET https://rupto.gitbook.io/rupto-documentation/api/newfilter.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.