Method findOne

sdk/src/CloudQuery.js:980–1012

(callback)

        }
    };
    findOne(callback) { //find a single document matching the given query
        if (!CB.appId) {
            throw "CB.appId is null.";
        }
        if (!this.tableName) {
            throw "TableName is null.";
        }
        var def;
        if (!callback) {
            def = new CB.Promise();
        }
        var params = JSON.stringify({query: this.query, select: this.select, sort: this.sort, skip: this.skip, key: CB.appKey});
        var url = CB.apiUrl + "/data/" + CB.appId + "/" + this.tableName + '/findOne';

        CB._request('POST', url, params).then(function(response) {
            var object = CB.fromJSON(JSON.parse(response));
            if (callback) {
                callback.success(object);
            } else {
                def.resolve(object);
            }
        }, function(err) {
            if (callback) {
                callback.error(err);
            } else {
                def.reject(err);
            }
        });

        if (!callback) {
            return def.promise;
        }
    };
}

// Logical operations