Merge pull request #90 from oceanprotocol/feature/meta-asset

refactor ddo,did with asset

example/src/AllDdos.tsx

@@ -33,7 +33,7 @@ export function AllDdos() {
         {ddos?.map((ddo) => {
           return (
             <div key={shortid.generate()}>
-              <MetadataExample did={ddo.id} />
+              <MetadataExample ddo={ddo} />
               <br />
             </div>
           )

example/src/MetadataExample.tsx

@@ -1,13 +1,14 @@
 import React, { useEffect, useState } from 'react'
 import { useMetadata } from '@oceanprotocol/react'
+import { DDO } from '@oceanprotocol/lib'
 
-export function MetadataExample({ did }: { did: string }) {
-  const { title, pool } = useMetadata(did)
+export function MetadataExample({ ddo }: { ddo: DDO }) {
+  const { title, poolAddress, price } = useMetadata(ddo)
 
   return (
     <>
       <div>
-        {title} - {pool && pool.price + ' - ' + pool.address}
+        {title} - price = {price} // pool = {poolAddress}
       </div>
     </>
   )

src/hooks/useMetadata/useMetadata.ts

@@ -4,6 +4,7 @@ import { useOcean } from '../../providers'
 import ProviderStatus from '../../providers/OceanProvider/ProviderStatus'
 import { getBestDataTokenPrice, getCheapestPool } from '../../utils/dtUtils'
 import Pool from './Pool'
+import { isDDO } from '../../utils'
 
 interface UseMetadata {
   ddo: DDO
@@ -17,7 +18,7 @@ interface UseMetadata {
   getPool: (dataTokenAddress?: string) => Promise<Pool>
 }
 
-function useMetadata(did?: DID | string, ddo?: DDO): UseMetadata {
+function useMetadata(asset?: DID | string | DDO): UseMetadata {
   const { ocean, status, config, accountId } = useOcean()
   const [internalDdo, setDDO] = useState<DDO | undefined>()
   const [internalDid, setDID] = useState<DID | string | undefined>()
@@ -58,16 +59,16 @@ function useMetadata(did?: DID | string, ddo?: DDO): UseMetadata {
     async function init(): Promise<void> {
       Logger.debug('meta init', status)
       if (ocean && status === ProviderStatus.CONNECTED) {
-        if (ddo) {
-          setDDO(ddo)
-          setDID(ddo.id)
-        }
-        Logger.debug('meta init', did)
-        if (did && !ddo) {
-          const ddo = await getDDO(did)
+        if (!asset) return
+
+        if (isDDO(asset)) {
+          setDDO(asset)
+          setDID(asset.id)
+        } else {
+          const ddo = await getDDO(asset)
           Logger.debug('DDO', ddo)
           setDDO(ddo)
-          setDID(did)
+          setDID(asset)
         }
       }
     }

src/utils/index.ts

@@ -1,3 +1,5 @@
+import { DDO, DID } from '@oceanprotocol/lib'
+
 export function readFileContent(file: File): Promise<string> {
   return new Promise((resolve, reject) => {
     const reader = new FileReader()
@@ -12,6 +14,13 @@ export function readFileContent(file: File): Promise<string> {
   })
 }
 
+export function isDDO(toBeDetermined): toBeDetermined is DDO {
+  if ((toBeDetermined as DDO).id) {
+    return true
+  }
+  return false
+}
+
 export const feedback: { [key in number]: string } = {
   99: 'Decrypting file URL...',
   0: '1/3 Looking for data token. Buying if none found...',