Move utils from CredentialService

package.json

@@ -61,6 +61,7 @@
     "@cosmjs/tendermint-rpc": "^0.31.0",
     "@cosmjs/utils": "^0.31.0",
     "@stablelib/ed25519": "^1.0.3",
+    "@types/secp256k1": "^4.0.3",
     "cosmjs-types": "^0.8.0",
     "did-jwt": "^7.2.4",
     "did-resolver": "^4.1.0",

src/utils.ts

@@ -27,6 +27,8 @@ import {
 } from '@stablelib/ed25519'
 import { DirectSecp256k1HdWallet, DirectSecp256k1Wallet } from '@cosmjs/proto-signing'
 import { EnglishMnemonic as _, sha256 } from '@cosmjs/crypto'
+import { rawSecp256k1PubkeyToRawAddress } from '@cosmjs/amino'
+import pkg from 'secp256k1'
 import { v4 } from 'uuid'
 import {
     VerificationMethod as ProtoVerificationMethod,
@@ -36,6 +38,9 @@ import {
 } from "@cheqd/ts-proto/cheqd/did/v2/index.js"
 import { DIDModule } from "./modules/did.js"
 import { MsgCreateResourcePayload } from "@cheqd/ts-proto/cheqd/resource/v2/index.js"
+import { toBech32 } from "@cosmjs/encoding"
+import { StargateClient } from "@cosmjs/stargate"
+import { Coin } from "cosmjs-types/cosmos/base/v1beta1/coin"
 
 export type TImportableEd25519Key = {
     publicKeyHex: string
@@ -295,4 +300,14 @@ export function createMsgResourcePayloadToSign(payload: Partial<MsgCreateResourc
   return MsgCreateResourcePayload.encode(
     MsgCreateResourcePayload.fromPartial(payload)
   ).finish()
+}
+
+export function getCosmosAccount(kid: string): string {
+    const { publicKeyConvert } = pkg
+    return toBech32('cheqd', rawSecp256k1PubkeyToRawAddress(publicKeyConvert(fromString(kid, 'hex'), true)))
+}
+
+export async function checkBalance(address: string, rpcAddress: string): Promise<readonly Coin[]> {
+    const client = await StargateClient.connect(rpcAddress)
+    return await client.getAllBalances(address)
 }