get pairs tokens to multiple assets

Signed-off-by: Ruben <rubdeivis@gmail.com>

src/schema.graphql

@@ -26,15 +26,20 @@ type EstimatedAmount {
   minAmount: String!
 }
 
-type PairTokensFromNativeCurrency {
-  pairTokens: [String!]!
+type GetPairTokens {
+  pairs: [Pairs!]!
+}
+
+type Pairs {
+  asset: String!
+  pairs: [String!]!
 }
 
 type Query {
   createSwap(addressTo: String! = "", amountFrom: String! = "", currencyFrom: String! = "", currencyTo: String! = ""): CreateSwap!
   getActiveSwaps(swapsIds: [String!]! = []): [ActiveSwaps!]!
   getEstimatedAmount(amount: String! = "", from: String! = "", to: String! = ""): EstimatedAmount!
-  getPairTokensFromNativeCurrency(nativeCurrency: String! = ""): PairTokensFromNativeCurrency!
+  getPairTokensFromNativeCurrency(nativeCurrencies: [String!]! = []): GetPairTokens!
   getTokens: Tokens!
   status: String!
   version: String!

src/stealthex/dtos/get-pairs-tokens.dto.ts

@@ -1,7 +1,22 @@
-import { ArgsType, Field } from '@nestjs/graphql'
+import { ArgsType, Field, ObjectType } from '@nestjs/graphql'
 
 @ArgsType()
-export class GetPairTokens {
+export class GetPairTokensArgs {
+  @Field(() => [String])
+  nativeCurrencies: string[] = []
+}
+
+@ObjectType()
+export class Pairs {
   @Field(() => String)
-  nativeCurrency: string = ''
+  asset: string = ''
+
+  @Field(() => [String])
+  pairs: string[] = []
+}
+
+@ObjectType()
+export class GetPairTokens {
+  @Field(() => [Pairs])
+  pairs = []
 }

src/stealthex/stealhtex.service.ts

@@ -53,11 +53,20 @@ export class StealthExService {
     return data
   }
 
-  async getPairTokensFromNativeCurrency({ nativeCurrency }: { nativeCurrency: string }) {
-    const { data } = await this.sendPetition({
-      path: `pairs/${nativeCurrency}`,
-      method: 'get',
-    })
+  async getPairTokensFromNativeCurrency({ nativeCurrencies }: { nativeCurrencies: string[] }) {
+    const data = await Promise.all(
+      nativeCurrencies.map(async (nativeCurrency) => {
+        const { data } = await this.sendPetition({
+          path: `pairs/${nativeCurrency}`,
+          method: 'get',
+        })
+
+        return {
+          asset: nativeCurrency,
+          pairs: data,
+        }
+      }),
+    )
 
     return data
   }

src/stealthex/stealthex.resolver.ts

@@ -2,8 +2,8 @@ import { Args, Query, Resolver } from '@nestjs/graphql'
 import { CreateSwapArgs, CreateSwap } from './dtos/create-swap.dto'
 import { ActiveSwaps, ActiveSwapsArgs } from './dtos/get-active-swaps.dto'
 import { EstimatedAmount, GetEstimatedAmount } from './dtos/get-estimated-amount.dto'
-import { GetPairTokens } from './dtos/get-pairs-tokens.dto'
-import { PairTokensFromNativeCurrency, Tokens } from './dtos/get-tokens.dto'
+import { GetPairTokens, GetPairTokensArgs } from './dtos/get-pairs-tokens.dto'
+import { Tokens } from './dtos/get-tokens.dto'
 import { StealthExService } from './stealhtex.service'
 
 @Resolver()
@@ -24,11 +24,11 @@ export class StealhExResolver {
     }
   }
 
-  @Query(() => PairTokensFromNativeCurrency)
-  async getPairTokensFromNativeCurrency(@Args() args: GetPairTokens) {
-    const pairTokens = await this.stealthexService.getPairTokensFromNativeCurrency(args)
+  @Query(() => GetPairTokens)
+  async getPairTokensFromNativeCurrency(@Args() args: GetPairTokensArgs) {
+    const pairs = await this.stealthexService.getPairTokensFromNativeCurrency(args)
     return {
-      pairTokens,
+      pairs,
     }
   }