feat: add resolve func

Author: daviddias

API/dag/README.md

@@ -1,6 +1,8 @@
 dag API
 =======
 
+> The dag API comes to replace the `object API`, it support the creation and manipulation of dag-pb object, as well as other IPLD formats (i.e dag-cbor, ethereum-block, git, etc)
+
 #### `dag.put`
 
 > Store an IPLD format node
@@ -9,13 +11,10 @@ dag API
 
 ##### `JavaScript` - ipfs.dag.put(dagNode, formatMulticodec, hashAlg, callback)
 
-`dagNode` - a DAG node that follows one of the supported IPLD formats.
-
-`formatMulticodec` - The IPLD format multicodec.
-
-`hashAlg` - The hash algorithm to be used over the serialized dagNode.
-
-`callback` must follow `function (err) {}` signature, where `err` is an error if the operation was not successful.
+- `dagNode` - a DAG node that follows one of the supported IPLD formats.
+- `formatMulticodec` - The IPLD format multicodec.
+- `hashAlg` - The hash algorithm to be used over the serialized dagNode.
+- `callback` must follow `function (err) {}` signature, where `err` is an error if the operation was not successful.
 
 If no `callback` is passed, a [promise][] is returned.
 
@@ -27,8 +26,23 @@ If no `callback` is passed, a [promise][] is returned.
 
 ##### `JavaScript` - ipfs.object.get(cid, callback)
 
-`cid` is a [CID][https://github.com/ipfs/js-cid] instance.
+- `cid` is a [CID][https://github.com/ipfs/js-cid] instance.
 
 `callback` must follow `function (err, dagNode) {}` signature, where `err` is an error if the operation was not successful and `dagNode` is the IPLD format DAG node retrieved.
 
 If no `callback` is passed, a [promise][] is returned.
+
+#### `dag.resolve`
+
+> Resolves an IPLD path
+
+##### `Go` **WIP**
+
+##### `JavaScript` - ipfs.object.resolve(cid, path, callback)
+
+- `cid` is a [CID][https://github.com/ipfs/js-cid] instance.
+- `path` is a String that represents a valid path to be resolved
+
+`callback` must follow `function (err, value) {}` signature, where `err` is an error if the operation was not successful and `value` is the value it was retrieved.
+
+If no `callback` is passed, a [promise][] is returned.