consume, ocean=lib update

example/src/AllDdos.tsx

@@ -22,7 +22,7 @@ export function AllDdos() {
         sort: { created: -1 }
       })
 
-      setDdos(assets.results)
+      setDdos(assets.results.slice(0, 4))
     }
     init()
   }, [ocean, account, chainId])

example/src/MetadataExample.tsx

@@ -3,12 +3,19 @@ import { useMetadata } from '@oceanprotocol/react'
 import { DDO } from '@oceanprotocol/lib'
 
 export function MetadataExample({ ddo }: { ddo: DDO }) {
-  const { title, poolAddress, price } = useMetadata(ddo)
+  const { title, price, did } = useMetadata(ddo)
 
   return (
     <>
       <div>
-        {title} - price = {price} // pool = {poolAddress}
+        {title} - did= {did}
+      </div>
+      <div>
+        {price && (
+          <span>
+            price = {price.value} // {price.type} = {price.address}
+          </span>
+        )}
       </div>
     </>
   )

example/src/Publish.tsx

@@ -32,7 +32,7 @@ export function Publish() {
 
   const publishAsset = async () => {
     const priceOptions = {
-      price: 10,
+      price: 7,
       tokensToMint: 10,
       type: 'fixed',
       weightOnDataToken: '',

package.json

@@ -25,7 +25,7 @@
     "dist/"
   ],
   "dependencies": {
-    "@oceanprotocol/lib": "^0.2.3",
+    "@oceanprotocol/lib": "file:../ocean-lib-js",
     "axios": "^0.20.0",
     "decimal.js": "^10.2.0",
     "web3": "^1.2.11",

src/hooks/useConsume/useConsume.ts

@@ -25,7 +25,7 @@ export const consumeFeedback: { [key in number]: string } = {
 }
 
 function useConsume(): UseConsume {
-  const { ocean, account, accountId } = useOcean()
+  const { ocean, account, accountId, config } = useOcean()
   const [isLoading, setIsLoading] = useState(false)
   const [consumeStep, setConsumeStep] = useState<number | undefined>()
   const [consumeStepText, setConsumeStepText] = useState<string | undefined>()
@@ -47,7 +47,7 @@ function useConsume(): UseConsume {
 
     try {
       setStep(0)
-      await checkAndBuyDT(ocean, dataTokenAddress, account)
+      await checkAndBuyDT(ocean, dataTokenAddress, account, config)
 
       setStep(1)
       const order = await ocean.assets.order(did, serviceType, accountId)

src/hooks/useMetadata/BestPrice.ts

@@ -0,0 +1,5 @@
+export default interface BestPrice {
+  type: 'pool' | 'exchange'
+  address: string
+  value: string
+}

src/hooks/useMetadata/useMetadata.ts

@@ -2,31 +2,28 @@ import { useState, useEffect } from 'react'
 import { DID, DDO, Metadata, Logger } from '@oceanprotocol/lib'
 import { useOcean } from '../../providers'
 import ProviderStatus from '../../providers/OceanProvider/ProviderStatus'
-import { getBestDataTokenPrice, getCheapestPool } from '../../utils/dtUtils'
+import { getBestDataTokenPrice } from '../../utils/dtUtils'
-import Pool from './Pool'
 import { isDDO } from '../../utils'
+import BestPrice from './BestPrice'
 
 interface UseMetadata {
   ddo: DDO
   did: DID | string
   metadata: Metadata
   title: string
-  price: string
+  price: BestPrice
-  poolAddress: string
   isLoaded: boolean
-  getPrice: (dataTokenAddress?: string) => Promise<string>
+  getPrice: (dataTokenAddress?: string) => Promise<BestPrice>
-  getPool: (dataTokenAddress?: string) => Promise<Pool>
 }
 
 function useMetadata(asset?: DID | string | DDO): UseMetadata {
-  const { ocean, status, config, accountId } = useOcean()
+  const { ocean, status, accountId } = useOcean()
   const [internalDdo, setDDO] = useState<DDO | undefined>()
   const [internalDid, setDID] = useState<DID | string | undefined>()
   const [metadata, setMetadata] = useState<Metadata | undefined>()
   const [title, setTitle] = useState<string | undefined>()
   const [isLoaded, setIsLoaded] = useState(false)
-  const [price, setPrice] = useState<string | undefined>()
+  const [price, setPrice] = useState<BestPrice | undefined>()
-  const [poolAddress, setPoolAddress] = useState<string | undefined>()
 
   async function getDDO(did: DID | string): Promise<DDO> {
     if (status === ProviderStatus.CONNECTED) {
@@ -35,13 +32,9 @@ function useMetadata(asset?: DID | string | DDO): UseMetadata {
     }
   }
 
-  async function getPrice(dataTokenAddress?: string): Promise<string> {
+  async function getPrice(dataTokenAddress?: string): Promise<BestPrice> {
     if (!dataTokenAddress) dataTokenAddress = internalDdo.dataToken
-    return await getBestDataTokenPrice(ocean, accountId, dataTokenAddress)
+    return await getBestDataTokenPrice(ocean, dataTokenAddress, accountId)
-  }
-  async function getPool(dataTokenAddress?: string): Promise<Pool> {
-    if (!dataTokenAddress) dataTokenAddress = internalDdo.dataToken
-    return await getCheapestPool(ocean, accountId, dataTokenAddress)
   }
 
   async function getMetadata(): Promise<Metadata> {
@@ -50,11 +43,6 @@ function useMetadata(asset?: DID | string | DDO): UseMetadata {
     return metadata.attributes
   }
 
-  async function getTitle(): Promise<string> {
-    const metadata = await getMetadata()
-    return metadata.main.name
-  }
-
   useEffect(() => {
     async function init(): Promise<void> {
       if (ocean && status === ProviderStatus.CONNECTED) {
@@ -82,18 +70,17 @@ function useMetadata(asset?: DID | string | DDO): UseMetadata {
         const metadata = await getMetadata()
         setMetadata(metadata)
         setTitle(metadata.main.name)
-        const pool = await getPool()
+        const price = await getPrice()
-        setPoolAddress(pool.address)
+
-        setPrice(pool.price)
+        setPrice(price)
         setIsLoaded(true)
       }
     }
     init()
 
     const interval = setInterval(async () => {
-      const pool = await getPool()
+      const price = await getPrice()
-      setPoolAddress(pool.address)
+      setPrice(price)
-      setPrice(pool.price)
     }, 10000)
     return () => clearInterval(interval)
   }, [accountId, internalDdo])
@@ -104,10 +91,8 @@ function useMetadata(asset?: DID | string | DDO): UseMetadata {
     metadata,
     title,
     price,
-    poolAddress,
     isLoaded,
-    getPrice,
+    getPrice
-    getPool
   }
 }
 

src/hooks/usePublish/usePublish.ts

@@ -26,7 +26,7 @@ interface UsePublish {
 }
 
 function usePublish(): UsePublish {
-  const { ocean, status, account, accountId } = useOcean()
+  const { ocean, status, account, accountId, config } = useOcean()
   const [isLoading, setIsLoading] = useState(false)
   const [publishStep, setPublishStep] = useState<number | undefined>()
   const [publishStepText, setPublishStepText] = useState<string | undefined>()
@@ -140,7 +140,7 @@ function usePublish(): UsePublish {
       await mint(ddo.dataToken, tokensToMint)
       Logger.log(`minted ${tokensToMint} tokens`)
 
-      await createPricing(priceOptions, ddo.dataToken)
+      await createPricing(priceOptions, ddo.dataToken, tokensToMint)
       setStep(8)
       return ddo
     } catch (error) {
@@ -154,7 +154,8 @@ function usePublish(): UsePublish {
 
   async function createPricing(
     priceOptions: PriceOptions,
-    dataTokenAddress: string
+    dataTokenAddress: string,
+    mintedTokens: string
   ) {
     switch (priceOptions.type) {
       case 'dynamic': {
@@ -173,7 +174,12 @@ function usePublish(): UsePublish {
           priceOptions.price.toString(),
           accountId
         )
-
+        await ocean.datatokens.approve(
+          dataTokenAddress,
+          config.fixedRateExchangeAddress,
+          mintedTokens,
+          accountId
+        )
         break
       }
     }

src/utils/dtUtils.ts

@@ -1,6 +1,8 @@
-import { Logger, Ocean, Account } from '@oceanprotocol/lib'
+import { Logger, Ocean, Account, Config } from '@oceanprotocol/lib'
 import { Decimal } from 'decimal.js'
 import Pool from '../hooks/useMetadata/Pool'
+import BestPrice from '../hooks/useMetadata/BestPrice'
+import Web3 from 'web3'
 
 export async function getCheapestPool(
   ocean: Ocean,
@@ -13,14 +15,14 @@ export async function getCheapestPool(
     accountId,
     dataTokenAddress
   )
-  // Logger.log('DT Pool found', tokenPools)
+
   if (tokenPools === undefined || tokenPools.length === 0) {
     return {
       address: '',
       price: ''
     }
   }
-  let cheapestPoolAddress
+  let cheapestPoolAddress = tokenPools[0]
   let cheapestPoolPrice = new Decimal(999999999999)
 
   if (tokenPools) {
@@ -31,7 +33,7 @@ export async function getCheapestPool(
         '1'
       )
       const decimalPoolPrice = new Decimal(poolPrice)
-      Logger.log('Pool price ', tokenPools[i], decimalPoolPrice.toString())
+
       if (decimalPoolPrice < cheapestPoolPrice) {
         cheapestPoolPrice = decimalPoolPrice
         cheapestPoolAddress = tokenPools[i]
@@ -47,12 +49,33 @@ export async function getCheapestPool(
 
 export async function getBestDataTokenPrice(
   ocean: Ocean,
-  accountId: string,
+  dataTokenAddress: string,
-  dataTokenAddress: string
+  accountId: string
-): Promise<string> {
+): Promise<BestPrice | undefined> {
-  const bestPool = await getCheapestPool(ocean, accountId, dataTokenAddress)
+  const cheapestPool = await getCheapestPool(ocean, accountId, dataTokenAddress)
+  const cheapestExchange = await getCheapestExchange(ocean, dataTokenAddress)
+  Decimal.set({ precision: 5 })
 
-  return bestPool.price
+  const cheapestPoolPrice = new Decimal(
+    cheapestPool.price !== '' ? cheapestPool.price : 999999999999
+  )
+  const cheapestExchangePrice = new Decimal(
+    cheapestExchange.price !== '' ? cheapestExchange.price : 999999999999
+  )
+
+  if (cheapestPoolPrice < cheapestExchangePrice) {
+    return {
+      type: 'pool',
+      address: cheapestPool.address,
+      value: cheapestPool.price
+    } as BestPrice
+  } else {
+    return {
+      type: 'exchange',
+      address: cheapestExchange.address,
+      value: cheapestExchange.price
+    } as BestPrice
+  }
 }
 export async function getCheapestExchange(
   ocean: Ocean,
@@ -64,30 +87,24 @@ export async function getCheapestExchange(
     dataTokenAddress,
     '1'
   )
-  Logger.log('Exchanges found', tokenExchanges)
+
   if (tokenExchanges === undefined || tokenExchanges.length === 0) {
     return {
       address: '',
       price: ''
     }
   }
-  let cheapestExchangeAddress
+  let cheapestExchangeAddress = tokenExchanges[0].exchangeID
-  let cheapestExchangePrice = new Decimal(999999999999)
+  let cheapestExchangePrice = new Decimal(tokenExchanges[0].fixedRate)
 
-  if (tokenExchanges) {
   for (let i = 0; i < tokenExchanges.length; i++) {
-      const exchangePrice = tokenExchanges[i].fixedRate
+    const decimalExchangePrice = new Decimal(
-
+      Web3.utils.fromWei(tokenExchanges[i].fixedRate)
-      const decimalExchangePrice = new Decimal(exchangePrice)
-      Logger.log(
-        'Pool price ',
-        tokenExchanges[i],
-        decimalExchangePrice.toString()
     )
+
     if (decimalExchangePrice < cheapestExchangePrice) {
       cheapestExchangePrice = decimalExchangePrice
-        cheapestExchangeAddress = tokenExchanges[i]
+      cheapestExchangeAddress = tokenExchanges[i].exchangeID
-      }
     }
   }
 
@@ -100,7 +117,8 @@ export async function getCheapestExchange(
 export async function checkAndBuyDT(
   ocean: Ocean,
   dataTokenAddress: string,
-  account: Account
+  account: Account,
+  config: Config
 ) {
   const userOwnedTokens = await ocean.accounts.getTokenBalance(
     dataTokenAddress,
@@ -108,36 +126,43 @@ export async function checkAndBuyDT(
   )
   Logger.log(`User has ${userOwnedTokens} tokens`)
   if (userOwnedTokens === '0') {
-    const cheapestPool = await getCheapestPool(
+    const bestPrice = await getBestDataTokenPrice(
       ocean,
-      account.getId(),
+      dataTokenAddress,
-      dataTokenAddress
+      account.getId()
     )
-    const cheapestExchange = await getCheapestExchange(ocean, dataTokenAddress)
-    Decimal.set({ precision: 5 })
-    const cheapestPoolPrice = new Decimal(cheapestPool.price)
-    const cheapestExchangePrice = new Decimal(cheapestExchange.price)
 
-    if (cheapestExchangePrice > cheapestPoolPrice) {
+    switch (bestPrice.type) {
-      const price = new Decimal(cheapestPool.price).times(1.05).toString()
+      case 'pool': {
-      const maxPrice = new Decimal(cheapestPool.price).times(2).toString()
+        const price = new Decimal(bestPrice.value).times(1.05).toString()
-      Logger.log('Buying token', cheapestPool, account.getId(), price)
+        const maxPrice = new Decimal(bestPrice.value).times(2).toString()
+        Logger.log('Buying token from pool', bestPrice, account.getId(), price)
         const buyResponse = await ocean.pool.buyDT(
           account.getId(),
-        cheapestPool.address,
+          bestPrice.address,
           '1',
           price,
           maxPrice
         )
         Logger.log('DT buy response', buyResponse)
         return buyResponse
-    } else {
+      }
+      case 'exchange': {
+        Logger.log('Buying token from exchange', bestPrice, account.getId())
+        await ocean.datatokens.approve(
+          config.oceanTokenAddress,
+          config.fixedRateExchangeAddress,
+          bestPrice.value,
+          account.getId()
+        )
         const exchange = await ocean.fixedRateExchange.buyDT(
-        cheapestExchange.address,
+          bestPrice.address,
           '1',
           account.getId()
         )
+        Logger.log('DT exchange buy response', exchange)
         return exchange
       }
     }
+  }
 }