> ## 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

チェーン上のauthモジュールをクエリするためのコードスニペット例。

## gRPCを使用する

### memoの最大文字数やトランザクション署名の上限などのパラメータを取得する

```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);
```

### injective addressに紐づくアカウント詳細（address、sequence、pub\_keyなど）を取得する

```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);
```

### チェーン上のアカウント一覧を取得する

```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(/* optional pagination params*/)

console.log(accounts)
```

## HTTP RESTを使用する

### injective addressに紐づくアカウント詳細（address、sequence、pub\_keyなど）を取得する

```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);
```

#### injective addressからcosmos addressを取得する

```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);
```