add execution of compute jobs

src/brizo/Brizo.ts

@@ -1,4 +1,4 @@
-import { File } from '../ddo/MetaData'
+import { File, MetaData } from '../ddo/MetaData'
 import Account from '../ocean/Account'
 import { noZeroX } from '../utils'
 import { Instantiable, InstantiableConfig } from '../Instantiable.abstract'
@@ -35,13 +35,8 @@ export class Brizo extends Instantiable {
         return `${this.url}${apiPath}/publish`
     }
 
-    public getComputeEndpoint(
-        pubKey: string,
-        serviceIndex: number,
-        _notUsed: string,
-        container: string
-    ) {
-        return `${this.url}${apiPath}/compute`
+    public getComputeEndpoint() {
+        return `${this.url}${apiPath}/exec`
     }
 
     public async initializeServiceAgreement(
@@ -78,12 +73,7 @@ export class Brizo extends Instantiable {
         destination: string,
         index: number = -1
     ): Promise<string> {
-        const signature =
-            (await account.getToken()) ||
-            (await this.ocean.utils.signature.signText(
-                noZeroX(agreementId),
-                account.getId()
-            ))
+        const signature = await this.createSignature(account, agreementId)
         const filesPromises = files
             .filter((_, i) => index === -1 || i === index)
             .map(async ({ index: i }) => {
@@ -105,6 +95,59 @@ export class Brizo extends Instantiable {
         return destination
     }
 
+    public async executeService(
+        agreementId: string,
+        serviceEndpoint: string,
+        account: Account,
+        algorithmDid: string,
+        algorithm: string,
+        algorithmMeta?: MetaData
+    ): Promise<string> {
+        const signature = await this.createSignature(account, agreementId)
+
+        let executeUrl = serviceEndpoint
+        executeUrl += `&signature=${signature}`
+        executeUrl += `&serviceAgreementId=${noZeroX(agreementId)}`
+        executeUrl += `&consumerAddress=${account.getId()}`
+        executeUrl += `&algorithmDID=${algorithmDid}`
+        executeUrl += `&algorithm=${algorithm}`
+        executeUrl += `&algorithmMeta=${algorithmMeta}`
+
+        const result: { workflowId: string } = await this.ocean.utils.fetch
+            .post(executeUrl, '')
+            .then((response: any) => {
+                if (response.ok) {
+                    return response.json()
+                }
+
+                this.logger.error(
+                    'Executing compute job failed:',
+                    response.status,
+                    response.statusText
+                )
+
+                return null
+            })
+            .catch(error => {
+                this.logger.error('Error executing compute job')
+                this.logger.error(error)
+                throw error
+            })
+
+        return result.workflowId
+    }
+
+    public async createSignature(account: Account, agreementId: string): Promise<string> {
+        const signature =
+            (await account.getToken()) ||
+            (await this.ocean.utils.signature.signText(
+                noZeroX(agreementId),
+                account.getId()
+            ))
+
+        return signature
+    }
+
     public async encrypt(
         did: string,
         signature: string,

src/ddo/ComputingProvider.ts

@@ -1,25 +0,0 @@
-export interface Provider {
-    type: string
-    description: string
-    environment: {
-        cluster: {
-            type: string
-            url: string
-        }
-        supportedContainers: {
-            image: string
-            tag: string
-            checksum: string
-        }[]
-        supportedServers: {
-            serverId: string
-            serverType: string
-            price: string
-            cpu: string
-            gpu: string
-            memory: string
-            disk: string
-            maxExecutionTime: number
-        }[]
-    }
-}

src/ddo/Service.ts

@@ -1,14 +1,7 @@
 import { MetaData } from './MetaData'
 import { ServiceAgreementTemplate } from './ServiceAgreementTemplate'
-import { Provider } from './ComputingProvider'
 
-export type ServiceType =
-    | 'authorization'
-    | 'metadata'
-    | 'access'
-    | 'compute'
-    | 'computing'
-    | 'fitchainCompute'
+export type ServiceType = 'authorization' | 'metadata' | 'access' | 'compute'
 
 export interface ServiceCommon {
     type: ServiceType
@@ -47,15 +40,45 @@ export interface ServiceAccess extends ServiceCommon {
     }
 }
 
-export interface ServiceComputing extends ServiceCommon {
-    type: 'computing'
+export interface ServiceCompute extends ServiceCommon {
+    type: 'compute'
     templateId?: string
-    provider?: Provider
+    attributes: {
+        main: {
+            creator: string
+            datePublished: string
+            price: string
+            timeout: number
+            provider?: ServiceComputeProvider
             serviceAgreementTemplate?: ServiceAgreementTemplate
         }
+    }
+}
 
-export interface ServiceCompute extends ServiceCommon {
-    templateId?: string
+export interface ServiceComputeProvider {
+    type: string
+    description: string
+    environment: {
+        cluster: {
+            type: string
+            url: string
+        }
+        supportedContainers: {
+            image: string
+            tag: string
+            checksum: string
+        }[]
+        supportedServers: {
+            serverId: string
+            serverType: string
+            price: string
+            cpu: string
+            gpu: string
+            memory: string
+            disk: string
+            maxExecutionTime: number
+        }[]
+    }
 }
 
 export type Service<
@@ -64,8 +87,6 @@ export type Service<
     ? ServiceAuthorization
     : T extends 'metadata'
     ? ServiceMetadata
-    : T extends 'computing'
-    ? ServiceComputing
     : T extends 'access'
     ? ServiceAccess
     : T extends 'compute'

src/ocean/OceanAssets.ts

@@ -206,6 +206,7 @@ export class OceanAssets extends Instantiable {
         useSecretStore?: boolean
     ): Promise<string>
 
+    /* eslint-disable no-dupe-class-members */
     public async consume(
         agreementId: string,
         did: string,
@@ -276,19 +277,20 @@ export class OceanAssets extends Instantiable {
         }
         return true
     }
+    /* eslint-enable no-dupe-class-members */
 
     /**
      * Start the purchase/order of an asset's service. Starts by signing the service agreement
      * then sends the request to the publisher via the service endpoint (Brizo http service).
      * @param  {string} did Decentralized ID.
      * @param  {number} index Service index.
-     * @param  {Account} consumer Consumer account.
+     * @param  {Account} consumerAccount Consumer account.
      * @return {Promise<string>} Returns Agreement ID
      */
     public order(
         did: string,
         index: number,
-        consumer: Account
+        consumerAccount: Account
     ): SubscribablePromise<OrderProgressStep, string> {
         return new SubscribablePromise(async observer => {
             const oceanAgreements = this.ocean.agreements
@@ -321,7 +323,7 @@ export class OceanAssets extends Instantiable {
                 const paid = await oceanAgreements.conditions.lockReward(
                     agreementId,
                     attributes.main.price,
-                    consumer
+                    consumerAccount
                 )
                 observer.next(OrderProgressStep.LockedPayment)
 
@@ -347,8 +349,8 @@ export class OceanAssets extends Instantiable {
                 agreementId,
                 index,
                 undefined,
-                consumer,
-                consumer
+                consumerAccount,
+                consumerAccount
             )
             this.logger.log('Agreement created')
 
@@ -362,6 +364,38 @@ export class OceanAssets extends Instantiable {
         })
     }
 
+    /**
+     * Start the execution of a compute job.
+     * @param  {string} agreementId ID of the agreement.
+     * @param  {DDO} computeDdo DDO of the compute asset.
+     * @param  {Account} consumerAccount Consumer account.
+     * @param  {string} algorithmDid The asset DID (of type `algorithm`) which consist of `did:op:` and the `assetId` hex str (without `0x` prefix).
+     * @param  {string} algorithm The text of the algorithm to run in the compute job (e.g. a jupyter notebook)
+     * @param  {MetaData} algorithmMeta Metadata about the algorithm being run if `algorithm` is being used. This is ignored when `algorithmDID` is specified.
+     * @return {Promise<string>} Returns Workflow ID
+     */
+    public async execute(
+        agreementId: string,
+        computeDdo: DDO,
+        consumerAccount: Account,
+        algorithmDid: string,
+        algorithm: string,
+        algorithmMeta?: MetaData
+    ): Promise<string> {
+        const { serviceEndpoint } = computeDdo.findServiceByType('compute')
+
+        const workflowId = await this.ocean.brizo.executeService(
+            agreementId,
+            serviceEndpoint,
+            consumerAccount,
+            algorithmDid,
+            algorithm,
+            algorithmMeta
+        )
+
+        return workflowId
+    }
+
     /**
      * Returns the owner of a asset.
      * @param  {string} did Decentralized ID.