# Using Raw Agent Methods

Another option to invoke QUERY and UPDATE canister methods from Java is to use raw [Agent](https://github.com/ic4j/ic4j-agent/blob/master/src/main/java/org/ic4j/agent/Agent.java) methods **queryRaw** and **updateRaw**.

```java
CompletableFuture<byte[]> response = agent
    .queryRaw(Principal.fromString(canisterId),
        Principal.fromString(effectiveCanisterId),
         "echoInt",
          payload,
          ingressExpiryDatetime);
```

```java
CompletableFuture<byte[]> response = agent
    .updateRaw(Principal.fromString(canisterId),
        Principal.fromString(effectiveCanisterId),
         "greetjav",
          payload,
          ingressExpiryDatetime);
```

To get the status of the Internet Computer, use **status** Agent method. It will return the [Status](https://github.com/ic4j/ic4j-agent/blob/master/src/main/java/org/ic4j/agent/Status.java) Java type as follows.

```java
Status status = agent.status().get();
```


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# 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://docs.ic4j.com/reference/api-reference/using-raw-agent-methods.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.