add getPrefix

Author: Francesca-Bit

lib/connectionConfig.js

@@ -663,6 +663,13 @@ ConnectionConfig.prototype.documentURL = function (params) {
   return this.branchBase('document') + paramsStr;
 };
 
+ConnectionConfig.prototype.prefixesURL = function () {
+  if (this.db() === this.system_db) {
+    return this.dbBase('prefixes');
+  }
+  return this.branchBase('prefixes');
+};
+
 ConnectionConfig.prototype.queryParameter = function (params) {
   if (!params || typeof params !== 'object') return '';
   const queryString = Object.keys(params).map((key) => `${key}=${encodeURISegment(params[key])}`).join('&');

lib/woqlClient.js

@@ -1182,6 +1182,21 @@ WOQLClient.prototype.getBranches = function (dbId) {
   // reset branch
 };
 
+/**
+ * get the database collections list
+ * @param {string} [dbId] - the database id
+ * @returns {Promise}  A promise that returns the call response object, or an Error if rejected.
+ * @example
+ * client.getBranches()
+ */
+WOQLClient.prototype.getPrefixes = function (dbId) {
+  if (dbId) this.db(dbId);
+  return this.dispatch(
+    CONST.GET,
+    this.connectionConfig.prefixesURL(),
+  );
+};
+
 /**
  * Get the list of the user's organizations and the database related
  * @returns {Promise}  A promise that returns the call response object, or an Error if rejected.