Extract serializer

app/lib/kredits/index.js

@@ -1,7 +1,9 @@
+import ContributionSerializer from './serializers/contribution';
 import ContributorSerializer from './serializers/contributor';
 import { fromBytes32, toBytes32 } from './utils/multihash';
 
 export {
+  ContributionSerializer,
   ContributorSerializer,
   fromBytes32,
   toBytes32

app/lib/kredits/serializers/contribution.js

@@ -0,0 +1,64 @@
+/**
+ * Handle serialization for JSON-LD object of the contribution, according to
+ * https://github.com/67P/kosmos-schemas/blob/master/schemas/contribution.json
+ *
+ * @class
+ * @public
+ */
+export default class Contributor {
+ /**
+  * Deserialize JSON to object
+  *
+  * @method
+  * @public
+  */
+  static deserialize(serialized) {
+    let {
+      kind,
+      description,
+      details,
+      url,
+    } = JSON.parse(serialized);
+
+    return {
+      kind,
+      description,
+      details,
+      url,
+      ipfsData: serialized,
+    };
+  }
+
+ /**
+  * Serialize object to JSON
+  *
+  * @method
+  * @public
+  */
+  static serialize(deserialized) {
+    let {
+      contributorIpfsHash,
+      kind,
+      description,
+      url,
+    } = deserialized;
+
+    let data = {
+      "@context": "https://schema.kosmos.org",
+      "@type": "Contribution",
+      "contributor": {
+        "ipfs": contributorIpfsHash
+      },
+      kind,
+      description,
+      "details": {}
+    };
+
+    if (url) {
+      data["url"] = url;
+    }
+
+    // Write it pretty to ipfs
+    return JSON.stringify(data, null, 2);
+  }
+}