> ## Documentation Index
> Fetch the complete documentation index at: https://injectivelabs-docs-ai-sdk.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Auth

查询链上 auth 模块的示例代码片段。

## 使用 gRPC

### 获取参数，如最大备注字符数或交易签名限制

```ts theme={null}
import { ChainGrpcAuthApi } from "@injectivelabs/sdk-ts/client/chain";
import { getNetworkEndpoints, Network } from "@injectivelabs/networks";

const endpoints = getNetworkEndpoints(Network.Testnet);
const chainGrpcAuthApi = new ChainGrpcAuthApi(endpoints.grpc);

const moduleParams = await chainGrpcAuthApi.fetchModuleParams();

console.log(moduleParams);
```

### 获取与 injective 地址关联的账户详情，如账户地址、序列号或 pub\_key

```ts theme={null}
import { ChainGrpcAuthApi } from "@injectivelabs/sdk-ts/client/chain";
import { getNetworkEndpoints, Network } from "@injectivelabs/networks";

const endpoints = getNetworkEndpoints(Network.Testnet);
const chainGrpcAuthApi = new ChainGrpcAuthApi(endpoints.grpc);
const injectiveAddress = "inj...";

const accountDetailsResponse = await chainGrpcAuthApi.fetchAccount(
  injectiveAddress
);

console.log(accountDetailsResponse);
```

### 获取链上账户列表

```ts theme={null}
import { PaginationOption } from '@injectivelabs/sdk-ts/types'
import { ChainGrpcAuthApi } from '@injectivelabs/sdk-ts/client/chain'
import { getNetworkEndpoints, Network } from '@injectivelabs/networks'

const endpoints = getNetworkEndpoints(Network.Testnet)
const chainGrpcAuthApi = new ChainGrpcAuthApi(endpoints.grpc)
const injectiveAddress = 'inj...'
const pagination = {...} as PaginationOption

const accounts = await chainGrpcAuthApi.fetchAccounts(/* 可选分页参数 */)

console.log(accounts)
```

## 使用 HTTP REST

### 获取与 injective 地址关联的账户详情，如账户地址、序列号或 pub\_key

```ts theme={null}
import { ChainRestAuthApi } from "@injectivelabs/sdk-ts/client/chain";
import { getNetworkEndpoints, Network } from "@injectivelabs/networks";

const endpoints = getNetworkEndpoints(Network.Testnet);
const chainRestAuthApi = new ChainRestAuthApi(endpoints.rest);
const injectiveAddress = "inj...";

const accountDetailsResponse = await chainRestAuthApi.fetchAccount(
  injectiveAddress
);

console.log(accountDetailsResponse);
```

#### 从 injective 地址获取 cosmos 地址

```ts theme={null}
import { ChainRestAuthApi } from "@injectivelabs/sdk-ts/client/chain";
import { getNetworkEndpoints, Network } from "@injectivelabs/networks";

const endpoints = getNetworkEndpoints(Network.Testnet);
const chainRestAuthApi = new ChainRestAuthApi(endpoints.rest);
const injectiveAddress = "inj...";

const cosmosAddress = await chainRestAuthApi.fetchCosmosAccount(
  injectiveAddress
);

console.log(cosmosAddress);
```