# How to use in Dapp

## How to use NightELF in DAPP

When you enter a Dapp that complies with the AELF ecosystem, usually the first step will be a pop up a prompt box for you to authorize, you can choose any Keypair to authorize.

![Login](/files/-Lwc0Uov9QExtv2CXETK)

Click the `Login` button, then, you can see the details of authorizations required by the current Dapp. This may include the domain name, contract address, contract name, contract description, Github address, etc.

![Login](/files/-Lwc0UoxGB7gMktuCmVy)

If you close this window or click `Cancel`, this action means you do not allow this application’s authorizations, then you may not be able to use the Dapp or most of the functions of the Dapp.

After you submit and authorize the application, you can go to NightELF's `Application Management page` to find your authorization information. If you don't know how to find the authorization information, you can check [Permission Manager](/user/permission.md).


---

# 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.browser-extension.aelf.io/user/how-to-use.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.