Injective Name Service

Within this section, we will look at how to query the Injective name service contracts.

Abstraction Service

You can use our InjNameService abstraction to query the smart contracts with a single method call. Below this example, you can also find the raw implementation on how to query the smart contracts in case you need more flexibility.

import { getNetworkEndpoints, Network } from '@injectivelabs/network'
import { InjNameService } from '@injectivelabs/sdk-ui-ts'

const injNameService = new InjNameService(Network.Testnet)
const name = 'ninja.inj'

// Fetch the address for the particular name
const addressForName = await injNameService.fetchInjAddress(name) 

// Fetch the name for the particular address
const nameFromAddress = await injNameService.fetchInjName(addressForName)

Raw Smart Contract Querying

Example code snippets to resolve .inj domain name.

Domain Resolution

• Get resolver address

import { getNetworkEndpoints, Network } from '@injectivelabs/networks'
import { ChainId } from '@injectivelabs/ts-types'
import {
  ChainGrpcWasmApi,
  QueryResolverAddress,
  InjNameServiceQueryTransformer
  INJ_NAME_REGISTRY_CONTRACT_BY_NETWORK,
  INJ_NAME_REVERSE_RESOLVER_CONTRACT_BY_NETWORK,
} from '@injectivelabs/sdk-ts'

const endpoints = getNetworkEndpoints(Network.Testnet)
const chainGrpcWasmApi = new ChainGrpcWasmApi(endpoints.grpc)

const registryContractAddress = INJ_NAME_REGISTRY_CONTRACT_BY_NETWORK[Network.Testnet]
const reverseResolverContractAddress =
  INJ_NAME_REVERSE_RESOLVER_CONTRACT_BY_NETWORK[Network.Testnet]
const node = ''

const query = new QueryResolverAddress({ node }).toPayload()

const response = await chainGrpcWasmApi.fetchSmartContractState(
  registryContractAddress,
  query,
)

const resolverAddress = InjNameServiceQueryTransformer.resolverAddressResponseToResolverAddress(response)

console.log(resolverAddress)

• Get address for .inj domain name.

import { getNetworkEndpoints, Network } from '@injectivelabs/networks'
import { ChainId } from '@injectivelabs/ts-types'
import {
  nameToNode,
  normalizeName,
  ChainGrpcWasmApi,
  QueryInjectiveAddress,
  InjNameServiceQueryTransformer
  INJ_NAME_REGISTRY_CONTRACT_BY_NETWORK,
} from '@injectivelabs/sdk-ts'

const endpoints = getNetworkEndpoints(Network.Testnet)
const chainGrpcWasmApi = new ChainGrpcWasmApi(endpoints.grpc)

const registryContractAddress = INJ_NAME_REGISTRY_CONTRACT_BY_NETWORK[Network.Testnet]
const name = 'allen.inj'
const resolverAddress = '' /** from above query */

const normalizedName = normalizeName(name)
const node = nameToNode(normalized)

const query = new QueryInjectiveAddress({ node }).toPayload()

const response = await chainGrpcWasmApi.fetchSmartContractState(
  resolverAddress,
  query,
)

const injectiveAddress = InjNameServiceQueryTransformer.injectiveAddressResponseToInjectiveAddress(response)

if (!injectiveAddress) {
  throw new Error(`address not found for ${name}`)
}

console.log(injectiveAddress)

Reverse Resolution

• Get the primary name for injective address.

import { getNetworkEndpoints, Network } from '@injectivelabs/networks'
import { ChainId } from '@injectivelabs/ts-types'
import {
  nameToNode,
  normalizeName,
  ChainGrpcWasmApi,
  QueryInjectiveAddress,
  InjNameServiceQueryTransformer
  INJ_NAME_REVERSE_RESOLVER_CONTRACT_BY_NETWORK,
} from '@injectivelabs/sdk-ts'

const endpoints = getNetworkEndpoints(Network.Testnet)
const chainGrpcWasmApi = new ChainGrpcWasmApi(endpoints.grpc)

const reverseResolverContractAddress =
  INJ_NAME_REVERSE_RESOLVER_CONTRACT_BY_NETWORK[Network.Testnet]
const injectiveAddress = ''
const resolverAddress = '' /** from above query */

const query = new QueryInjName({ address: injectiveAddress }).toPayload()

const response = await chainGrpcWasmApi.fetchSmartContractState(
  reverseResolverContractAddress,
  query,
)

const name = InjNameServiceQueryTransformer.injectiveNameResponseToInjectiveName(response)

if (!name) {
  throw new Error(`.inj not found for ${injectiveAddress}`)
}

const addressForName = /** fetch as above example */

if (addressForName.toLowerCase() !== address.toLowerCase()) {
  throw new Error(`.inj not found for ${injectiveAddress}`)
}

console.log(name)