Firebase Flashlight (ElasticSearch) filtering, sorting, pagination - node.js

Question

I am using Flashlight Firebase plugin
I am using this example and it's working fine
In the example you can see example.js file have method for query as below
// display search results
function doSearch(index, type, query) {
var ref = database.ref().child(PATH);
var key = ref.child('request').push( { index: index, type: type, query: query } ).key;
ref.child('response/'+key).on('value', showResults);
}
above function returning me the results when I pass values like following JSON
{ index: index, type: type, query: query }
It returning me nothing when i am trying to pass values like following JSON
{ index: index, type: type, query: { "from" : 1, "size" : 5 , "query": query }
but the following ElasticSearch API returning me the result
http://localhost:9200/firebase/user/_search?q=*mani*&pretty&size=5&from=1
and How do i filtering the query using Flashlight like following
{
"query": {
"filtered": {
"query": {
"query_string": {
"query": "drama"
}
},
"filter": {
//Filter to apply to the query
}
}
}
}
I am using following security rules
{
"rules": {
".read": false,
".write": false,
"search": {
"request": {
"$recid": {
// I can only read records assigned to me
".read": "auth.id === data.child('id').val() || auth.uid === data.child('id').val()",
// I can only write new records that don't exist yet
".write": "!data.exists() && (newData.child('id').val() === auth.id || newData.child('id').val() === auth.uid)",
".validate": "newData.hasChildren(['query', 'index', 'type'])",
"index": {
// accepts arrays or strings
".validate": "(newData.isString() && newData.val().length < 1000) || newData.hasChildren()",
"$child": {
".validate": "newData.isString() && newData.val().length < 1000"
}
},
"type": {
// accepts arrays or strings
".validate": "(newData.isString() && newData.val().length < 1000) || newData.hasChildren()",
"$child": {
".validate": "newData.isString() && newData.val().length < 1000"
}
},
"query": {
// structure of the query object is pretty open-ended
".validate": "newData.isString() || newData.hasChildren()"
},
"$other": {
".validate": false
}
}
},
"response": {
"$recid": {
// I can only read/write records assigned to me
".read": "auth.id === data.child('id').val() || auth.uid === data.child('id').val()",
".write": "auth.id === data.child('id').val() || auth.uid === data.child('id').val()",
// Assumes that Flashlight will be writing the records using a secret or a token that has admin: true
// The only thing a logged in user needs to do is delete results after reading them
".validate": false
}
}
}
}
}
Please let me know how to perform complex queries and filtering with Flashlight

Answer 1

Finally I did it myself
here is the solution
You need to update SearchQueue.js
_process: function (snap) {
var dat = snap.val();
var key = snap.key;
if (this._assertValidSearch(key, dat)) {
// get your query string
var q = dat.query.query;
console.log('search', "test", JSON.stringify(dat, null, 2));
// build your ES query
//var q1 = {"query":{"match":{"_all":q}}};
// Perform (a very simple) ElasticSearch query
this.esc.search({
index: dat.index,
type: dat.type,
// add options
from : dat.query.from,
size : dat.query.size,
// add ES Query
//body : q1
q:dat.query.query
}, function (error, response) {
if (error) {
this._reply(key, {error: error, total: 0});
} else {
this._reply(key, response);
}
}.bind(this));
}
}
and update Example.js
// display search results
function doSearch(index, type, query) {
var ref = database.ref().child(PATH);
var jsonOBJ = {
index: index,
type: type,
query: { size:1, from:0, query:query},
};
var key = ref.child('request').push(jsonOBJ).key;
console.log('search', key, JSON.stringify(jsonOBJ, null, 2));
ref.child('response/'+key).on('value', showResults);
}