feat(pinFileToIpfs): support multiple readable streams with backwards…

…-compatible change

src/commands/pinning/pinFileToIPFS.js

@@ -17,14 +17,19 @@ export default function pinFileToIPFS(pinataApiKey, pinataSecretApiKey, readStre
     validateApiKeys(pinataApiKey, pinataSecretApiKey);
 
     return new Promise((resolve, reject) => {
-
         const data = new NodeFormData();
-
-        data.append('file', readStream);
-
         const endpoint = `${baseUrl}/pinning/pinFileToIPFS`;
 
-        if (!(readStream instanceof stream.Readable)) {
+        if (readStream instanceof Array) {
+            readStream.forEach(rs => {
+                if (!(rs instanceof stream.Readable)) {
+                    reject(new Error('readStream is not a readable stream'));
+                } 
+                data.append('file', rs);
+            })
+        } else if (readStream instanceof stream.Readable) {
+            data.append('file', readStream);
+        } else {
             reject(new Error('readStream is not a readable stream'));
         }
 

test/commands/pinning/pinFileToIPFS.test.js

@@ -6,6 +6,7 @@ jest.mock('axios');
 //common values
 const nonStream = 'test';
 const validStream = fs.createReadStream('./pinata.png');
+const validStream2 = fs.createReadStream('./README.md');
 
 
 test('non-readableStream is passed in', () => {
@@ -24,6 +25,16 @@ test('200 status is returned', () => {
     expect(pinFileToIPFS('test', 'test', validStream)).resolves.toEqual(goodStatus.data);
 });
 
+test('200 status is returned for list of streams', () => {
+    const goodStatus = {
+        status: 200,
+        data: 'testData'
+    };
+    axios.post.mockResolvedValue(goodStatus);
+    expect.assertions(1);
+    expect(pinFileToIPFS('test', 'test', [validStream, validStream2])).resolves.toEqual(goodStatus.data);
+});
+
 test('Result other than 200 status is returned', () => {
     const badStatus = {
         status: 700