added methods and

Added methods  and  for the implementation of Astronomy API

Author: DaudAhmadJF

src/main/java/io/ipgeolocation/api/IPGeolocationAPI.java

@@ -161,6 +161,28 @@ public List<UserAgent> getBulkUserAgent(String[] uaStrings) {
     return userAgents;
   }
 
+  public Astronomy getAstronomy() {
+    return getAstronomy(null);
+  }
+
+  public Astronomy getAstronomy(AstronomyParams params) {
+    final JSONObject apiResponse =
+            (JSONObject)
+                    callAPIEndpoint("astronomy",
+                            buildAstronomyUrlParams(params),
+                            "GET",
+                            null,
+                            false);
+    final Astronomy astronomy;
+
+    try {
+      astronomy = new Astronomy(apiResponse);
+    } catch (IllegalArgumentException e) {
+      throw new IPGeolocationError(e);
+    }
+    return astronomy;
+  }
+
   private String buildGeolocationUrlParams(final GeolocationParams params) {
     final StringBuilder urlParams = new StringBuilder();
 
@@ -259,6 +281,43 @@ private String buildTimezoneUrlParams(final TimezoneParams params) {
     return urlParams.toString();
   }
 
+  private String buildAstronomyUrlParams(final AstronomyParams params) {
+    final StringBuilder urlParams = new StringBuilder();
+
+    urlParams.append("apiKey=");
+    urlParams.append(apiKey);
+
+    if (!Objects.isNull(params)) {
+      if (!Strings.isNullOrEmpty(params.getIpAddress())) {
+        urlParams.append("&ip=");
+        urlParams.append(params.getIpAddress());
+      }
+
+      if (!Strings.isNullOrEmpty(params.getLocation())) {
+        urlParams.append("&location=");
+        urlParams.append(params.getLocation());
+      }
+
+      if (!Objects.isNull(params.getLatitude()) && !Objects.isNull(params.getLongitude())) {
+        urlParams.append("&lat=");
+        urlParams.append(params.getLatitude());
+        urlParams.append("&long=");
+        urlParams.append(params.getLongitude());
+      }
+
+      if (!Strings.isNullOrEmpty(params.getLang())) {
+        urlParams.append("&lang=");
+        urlParams.append(params.getLang());
+      }
+
+      if (!Strings.isNullOrEmpty(params.getDate())) {
+        urlParams.append("&date=");
+        urlParams.append(params.getDate());
+      }
+    }
+    return urlParams.toString();
+  }
+
   private Object callAPIEndpoint(
       final String endpoint,
       final String requestParams,