Merge pull request #24 from Lamden/contract-variables-endpoint

added get variables masternode endpoint to the Masternode_API

dist/lamden.js

@@ -5562,6 +5562,16 @@ class LamdenMasterNode_API{
 
     }
 
+    async getContractVariables(contract){
+        let path = `/contracts/${contract}/variables`;
+        return this.send('GET', path, {}, undefined, (res, err) => {
+            try{
+                if (res.variables) return res
+            } catch (e){}
+            return {};
+        })
+    }
+
     async pingServer(){
         return this.send('GET', '/ping', {}, undefined, (res, err) => {
             try { 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "lamden-js",
-  "version": "1.3.5",
+  "version": "1.3.6",
   "description": "A javascript implementaion for creating wallets, submitting transactions and interacting with masternodes on the Lamden Blockchain.",
   "main": "dist/lamden.js",
   "scripts": {

src/js/masternode-api.js

@@ -91,6 +91,16 @@ export class LamdenMasterNode_API{
 
     }
 
+    async getContractVariables(contract){
+        let path = `/contracts/${contract}/variables`
+        return this.send('GET', path, {}, undefined, (res, err) => {
+            try{
+                if (res.variables) return res
+            } catch (e){}
+            return {};
+        })
+    }
+
     async pingServer(){
         return this.send('GET', '/ping', {}, undefined, (res, err) => {
             try { 

test/masternode_api-test.js

@@ -128,6 +128,27 @@ describe('Test Masternode API returns', () => {
         })
     })
 
+    context('Masternode_API.getContractVariables()', () => {
+        it('returns an array if a contract exists on the blockchain', async () => {
+            let response = await goodNetwork_api.getContractVariables('currency')
+            expect(Array.isArray(response.variables)).to.be(true);
+            expect(Array.isArray(response.hashes)).to.be(true);
+            expect(response.hashes.length > 0).to.be(true);
+        })
+        it('returns an empty Object if a contract does not exist on the blockchain', async () => {
+            let response = await goodNetwork_api.getContractVariables(wallet.new_wallet().vk)
+            expect(Array.isArray(response.variables)).to.be(false);
+            expect(Array.isArray(response.hashes)).to.be(false);
+            expect(Object.keys(response).length === 0).to.be(true);
+        })
+        it('returns empty Object if provided network is unresponsive', async () => {
+            let response = await badNetwork_api.getContractVariables('currency')
+            expect(Array.isArray(response.variables)).to.be(false);
+            expect(Array.isArray(response.hashes)).to.be(false);
+            expect(Object.keys(response).length === 0).to.be(true);
+        })
+    })
+
     context('Masternode_API.getVariable()', () => {
         it('returns the value of the variable if the key exists', async () => {
             let key = balanceCheckWallet.float;