fix: allow arbitrary asset onchain metadata

Author: slowbackspace

api_assets.go

@@ -17,11 +17,6 @@ const (
 	resourcePolicyAssets      = "assets/policy"
 )
 
-type AssetOnchainMetadata struct {
-	Name  string `json:"name"`
-	Image string `json:"image"`
-}
-
 // Contains metadata information about an asset.
 type AssetMetadata struct {
 	Name        string `json:"name"`
@@ -56,7 +51,7 @@ type Asset struct {
 	MintOrBurnCount int `json:"mint_or_burn_count"`
 
 	// On-chain metadata which SHOULD adhere to the valid standards, based on which we perform the look up and display the asset (best effort)
-	OnchainMetadata *AssetOnchainMetadata `json:"onchain_metadata"`
+	OnchainMetadata *interface{} `json:"onchain_metadata"`
 	// Enum: "CIP25v1" "CIP25v2" "CIP68v1"
 	// If on-chain metadata passes validation, we display the standard under which it is valid
 	OnchainMetadataStandard *string `json:"onchain_metadata_standard"`

api_assets_test.go

@@ -12,6 +12,13 @@ import (
 )
 
 func TestAssetUnmarshal(t *testing.T) {
+
+	var onchainMetadata interface{} = map[string]interface{}{
+		"image":       "ipfs://ipfs/QmfKyJ4tuvHowwKQCbCHj4L5T3fSj8cjs7Aau8V7BWv226",
+		"name":        "My NFT token",
+		"description": "optional",
+	}
+
 	fp := filepath.Join(testdata, "json", "assets", "asset.json")
 	want := blockfrost.Asset{
 		Asset:             "b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e",
@@ -21,10 +28,7 @@ func TestAssetUnmarshal(t *testing.T) {
 		InitialMintTxHash: "6804edf9712d2b619edb6ac86861fe93a730693183a262b165fcc1ba1bc99cad",
 		MintOrBurnCount:   1,
 		Quantity:          "12000",
-		OnchainMetadata: &blockfrost.AssetOnchainMetadata{
-			Image: "ipfs://ipfs/QmfKyJ4tuvHowwKQCbCHj4L5T3fSj8cjs7Aau8V7BWv226",
-			Name:  "My NFT token",
-		},
+		OnchainMetadata:   &onchainMetadata,
 		Metadata: &blockfrost.AssetMetadata{
 			Name:        "nutcoin",
 			Description: "The Nut Coin",
@@ -62,6 +66,18 @@ func TestResourceAssetIntegration(t *testing.T) {
 	want := blockfrost.Asset{}
 	testIntUtil(t, fp, &got, &want)
 }
+func TestResourceAssetMetadataIntegration(t *testing.T) {
+	asset := "14696a4676909f4e3cb1f2e60e2e08e5abed70caf5c02699be97113943554259"
+	api := blockfrost.NewAPIClient(blockfrost.APIClientOptions{})
+
+	got, err := api.Asset(context.TODO(), asset)
+	if err != nil {
+		t.Fatal(err)
+	}
+	fp := filepath.Join(testdata, strings.ToLower(strings.TrimLeft(t.Name(), "Test"))+".golden")
+	want := blockfrost.Asset{}
+	testIntUtil(t, fp, &got, &want)
+}
 
 func TestResourceAssetHistoryIntegration(t *testing.T) {
 	asset := "3a9241cd79895e3a8d65261b40077d4437ce71e9d7c8c6c00e3f658e4669727374636f696e"

testdata/json/assets/asset.json

@@ -7,15 +7,16 @@
     "initial_mint_tx_hash": "6804edf9712d2b619edb6ac86861fe93a730693183a262b165fcc1ba1bc99cad",
     "mint_or_burn_count": 1,
     "onchain_metadata": {
-      "name": "My NFT token",
-      "image": "ipfs://ipfs/QmfKyJ4tuvHowwKQCbCHj4L5T3fSj8cjs7Aau8V7BWv226"
+        "name": "My NFT token",
+        "image": "ipfs://ipfs/QmfKyJ4tuvHowwKQCbCHj4L5T3fSj8cjs7Aau8V7BWv226",
+        "description": "optional"
     },
     "metadata": {
-      "name": "nutcoin",
-      "description": "The Nut Coin",
-      "ticker": "nutc",
-      "url": "https://www.stakenuts.com/",
-      "logo": "42",
-      "decimals": 6
+        "name": "nutcoin",
+        "description": "The Nut Coin",
+        "ticker": "nutc",
+        "url": "https://www.stakenuts.com/",
+        "logo": "42",
+        "decimals": 6
     }
 }