move defaults into datatokens.create()

src/datatokens/Datatokens.ts

@@ -36,7 +36,7 @@ export class DataTokens {
 
   /**
    * Generate new datatoken name & symbol from a word list
-   * @return {<{ name: String; symbol: String }>} datatoken name & symbol. Produces e.g. "Endemic Jellyfish Token" & "ENDJEL-145"
+   * @return {<{ name: String; symbol: String }>} datatoken name & symbol. Produces e.g. "Endemic Jellyfish Token" & "ENDJEL-45"
    */
   public generateDtName(wordList?: {
     nouns: string[]
@@ -63,19 +63,26 @@ export class DataTokens {
   /**
    * Create new datatoken
    * @param {String} metaDataStoreURI
+   * @param {String} address
+   * @param {String} cap Maximum cap (Number) - will be converted to wei
    * @param {String} name Token name
    * @param {String} symbol Token symbol
-   * @param {String} cap Maximum cap (Number) - will be converted to wei
-   * @param {String} address
    * @return {Promise<string>} datatoken address
    */
   public async create(
     metaDataStoreURI: string,
-    name: string,
-    symbol: string,
-    cap: string,
-    address: string
+    address: string,
+    cap?: string,
+    name?: string,
+    symbol?: string
   ): Promise<string> {
+    if (!cap) cap = '1410000000000000000000000000'
+
+    // Generate name & symbol if not present
+    if (!name || !symbol) {
+      ;({ name, symbol } = this.generateDtName())
+    }
+
     // Create factory contract object
     const factory = new this.web3.eth.Contract(this.factoryABI, this.factoryAddress, {
       from: address

src/ocean/Assets.ts

@@ -50,6 +50,10 @@ export class Assets extends Instantiable {
    * @param  {Metadata} metadata DDO metadata.
    * @param  {Account}  publisher Publisher account.
    * @param  {list} services list of Service description documents
+   * @param {String} dtAddress existing Data Token Address
+   * @param {String} cap Maximum cap (Number) - will be converted to wei
+   * @param {String} name Token name
+   * @param {String} symbol Token symbol
    * @return {Promise<DDO>}
    */
   public create(
@@ -57,9 +61,9 @@ export class Assets extends Instantiable {
     publisher: Account,
     services: Service[] = [],
     dtAddress?: string,
+    cap?: string,
     name?: string,
-    symbol?: string,
-    cap?: string
+    symbol?: string
   ): SubscribablePromise<CreateProgressStep, DDO> {
     this.logger.log('Creating asset')
     return new SubscribablePromise(async (observer) => {
@@ -68,19 +72,16 @@ export class Assets extends Instantiable {
       }
       if (!dtAddress) {
         this.logger.log('Creating datatoken')
-        if (!name) name = 'DataToken'
-        if (!symbol) symbol = 'DT'
-        if (!cap) cap = '1410000000000000000000000000'
         observer.next(CreateProgressStep.CreatingDataToken)
         const metadataStoreURI = this.ocean.metadatastore.getURI()
         const jsonBlob = { t: 1, url: metadataStoreURI }
         const { datatokens } = this.ocean
         dtAddress = await datatokens.create(
           JSON.stringify(jsonBlob),
-          name,
-          symbol,
+          publisher.getId(),
           cap,
-          publisher.getId()
+          name,
+          symbol
         )
         this.logger.log('DataToken creted')
         observer.next(CreateProgressStep.DataTokenCreated)