Sorting query-string params before signing authorization key.

Author: pablo

.gitignore

@@ -32,9 +32,4 @@ local.properties
 # Intellij
 ######################
 .idea/
-*.iml
-*.iws
-*.ipr
-*.ids
-*.orig
-classes/
+*.iml

src/main/java/com/cryptomarket/sdk/HttpClientImpl.java

@@ -89,7 +89,7 @@ public String get(String endpoint, @Nullable Map<String, String> params) throws
         URI uri = null;
         try {
             URIBuilder uriBuilder = new URIBuilder(this.url + this.apiVersion + endpoint);
-            if (params != null) params.forEach((key, val) -> uriBuilder.addParameter(key, val));
+            if (params != null) params.entrySet().stream().sorted(Map.Entry.comparingByKey()).forEach(e -> uriBuilder.addParameter(e.getKey(), e.getValue()));
             uri = uriBuilder.build();
         } catch (URISyntaxException e) {
             throw new CryptomarketSDKException("Failed to build the uri", e);