fix: getting url from DDO when claiming NFT

integration/nevermined/Subscriptions.e2e.test.ts

@@ -27,6 +27,7 @@ describe('Subscriptions using NFT ERC-721 End-to-End', () => {
   let reseller: Account
 
   let nevermined: Nevermined
+
   let token: Token
   let escrowPaymentCondition: EscrowPaymentCondition
   let transferNft721Condition: TransferNFT721Condition

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@nevermined-io/sdk",
-  "version": "1.6.2",
+  "version": "1.6.3",
   "description": "Javascript SDK for connecting with Nevermined Data Platform ",
   "main": "./dist/node/sdk.js",
   "typings": "./dist/node/sdk.d.ts",

src/keeper/contracts/templates/BaseTemplate.abstract.ts

@@ -27,7 +27,7 @@ export abstract class BaseTemplate<Params, S extends Service>
   public abstract description(): string
   public abstract conditions(): Condition<any, any>[]
 
-  public serviceEndpoint(): ServiceType {
+  public serviceEndpoint(): ServiceType | string {
     return this.service()
   }
 

src/keeper/contracts/templates/NFT721SalesTemplate.ts

@@ -28,8 +28,8 @@ export class NFT721SalesTemplate extends BaseTemplate<NFT721SalesTemplateParams,
   public service(): ServiceType {
     return 'nft-sales'
   }
-  public serviceEndpoint(): ServiceType {
-    return 'nft-sales'
+  public serviceEndpoint(): ServiceType | string {
+    return 'nft-transfer'
   }
 
   public name(): string {

src/keeper/contracts/templates/NFTSalesTemplate.ts

@@ -27,6 +27,10 @@ export class NFTSalesTemplate extends BaseTemplate<NFTSalesTemplateParams, Servi
     return 'nft-sales'
   }
 
+  public serviceEndpoint(): ServiceType | string {
+    return 'nft-transfer'
+  }
+
   public name(): string {
     return 'nft1155SalesAgreement'
   }

src/services/node/NeverminedNode.ts

@@ -61,7 +61,7 @@ export class NeverminedNode extends Instantiable {
     return `${this.url}${apiPath}/access-proof`
   }
 
-  public getServiceEndpoint(service: ServiceType) {
+  public getServiceEndpoint(service: ServiceType | string) {
     return `${this.url}${apiPath}/${service}`
   }
 
@@ -380,9 +380,23 @@ export class NeverminedNode extends Instantiable {
     ercType: ERCType = 1155,
     did?: string,
   ): Promise<boolean> {
+    let claimNFTEndpoint = this.getClaimNftEndpoint()
     try {
+      if (did) {
+        // Getting Node endpoint from DDO
+        const ddo = await this.nevermined.assets.resolve(did)
+        const salesService = ddo.findServiceByType('nft-sales')
+        const endpointURL = new URL(salesService.serviceEndpoint)
+        claimNFTEndpoint = `${endpointURL.protocol}//${endpointURL.host}${apiPath}/nft-transfer`
+      }
+    } catch (e) {
+      this.logger.log(`Unable to get endpoint from DDO: ${did}`)
+    }
+
+    try {
+      this.logger.log(`Claiming NFT using endpoint: ${claimNFTEndpoint}`)
       const response = await this.nevermined.utils.fetch.post(
-        this.getClaimNftEndpoint(),
+        claimNFTEndpoint,
         JSON.stringify({
           agreementId,
           did,