Add config option to ignore trait types

README.md

@@ -43,11 +43,22 @@ Add weights to scale rarity scores up or down.
 {
   weights: {
     "Trait A": 1.2,
-    "Trait B": 0,
+    "Trait B": 0.1,
   }
 }
 ```
 
+### ignoreTraits
+Array of trait types to be ignored by the rarity analyser.
+
+```typescript
+{
+  ingoreTraits: [
+    'Trait x',
+    'Trait y',
+  ]
+}
+```
 ### getMissingTraitIdentifier
 `(trait_type?: string) => string | undefined`
 

rarityConfig.ts

@@ -4,6 +4,7 @@ const config: Config = {
   // weights: {},
   // getMissingTraitIdentifier: (trait_type?: string) => undefined,
   // attributesFieldName: 'attributes',
+  // ignoreTraits: []
 }
 
 export default config

src/analysis.ts

@@ -106,6 +106,12 @@ export const analyse = (
   }
 }
 
+const filterIgnored = (tokens: Token[], ignoredTraits: string[]) => tokens.map(token => ({
+  ...token,
+  attributes: token.attributes.filter(attribute => (
+    !(ignoredTraits.includes(attribute.trait_type))
+  ))
+}))
 
 const preprocess = (
   tokens: Record<string, string | number | Attribute[]>[]
@@ -152,7 +158,12 @@ const preprocess = (
     t = mapped
   }
 
-  return t as Token[]
+  let result: Token[]
+  if (config.ignoreTraits !== undefined)
+    result = filterIgnored(t as Token[], config.ignoreTraits)
+  else result = t as Token[]
+
+  return result
 }
 
 /**

src/types.ts

@@ -72,6 +72,7 @@ export interface Config {
   weights?: Weights
   getMissingTraitIdentifier?: GetMissingTraitIdentifier
   attributesFieldName?: string
+  ignoreTraits?: string[]
 }
 
 export type AttributeWithRarity = Attribute & RarityFields