Query Firebase using Rest Call - firebase

Question

I am querying firestore using query
https://firestore.googleapis.com/v1/projects/myproject/databases/(default)/documents/mycollection
I am getting following Json. Can someone please help me how can I filter my query based on Rate field. I am writing following query and it doesn't work
https://firestore.googleapis.com/v1/projects/myproject/databases/(default)/documents/mycolletion?Rate="15"
{
"documents": [
{
"name": "0C45nDuozgQDOwEx5xHR",
"fields": {
"Clinic": {
"stringValue": "American Hospital"
},
"Rate": {
"stringValue": "140"
},
,`enter code here`
"createTime": "2020-06-28T20:32:18.776123Z",
"updateTime": "2020-07-22T21:19:24.061647Z"
},
{
"name": "Jm3tNVWmk4Q1pk87KL1m",
"fields": {
"Clinic": {
"stringValue": "Cleaveland clinic"
},
"Rate": {
"stringValue": "150"
},
"createTime": "2020-06-28T20:28:03.726819Z",
"updateTime": "2020-07-22T21:19:05.073019Z"
}
}

Answer 1

The problem is that the Rate field is an object (inside another object to make it worse), so in order to achieve that you would either need to update you Firestore structure to do it all in the request URL, or you would have to use a structured query in the body of the request.
Change the structure:
In order to work with the request you already have, you will need to change the structure to (using the 1st document as an example):
{
"name": "0C45nDuozgQDOwEx5xHR",
"Clinic": "American Hospital",
"Rate": "140",
"createTime": "2020-06-28T20:32:18.776123Z",
"updateTime": "2020-07-22T21:19:24.061647Z"
}
which in my opinion makes it simpler although I don't have the full picture
Have a Structured query in your request body:
To keep the structure you already have you will need to use thisURL:
https://firestore.googleapis.com/v1/projects/myproject/databases/(default)/documents/:runQuery
And add this to the body of the request:
"structuredQuery": {
"from": [{
"collectionId": "mycollection"
}],
"where": {
"fieldFilter": {
"fields": {
"Rate": {
"stringValue": "15"
}
}
}
}
}
You can check more details by checking the runQuery Documentation and the structuredQuery Documentation for what else you can do with these options.