Cloud Firestore add multiple document using REST API - PHP - php

Question

I am trying to add multiple documents in one connection using google cloud firestore REST API. I can do this for single documant, but when I try to add more than one, I get an error.
The code I use to add a single document
$data = array(
'fields' => array(
'Field1' => array(
'stringValue' => 'deneme'
),
'Field2' => array(
'stringValue' => 'deneme2'
)
),
);
//$data = array_values($data);
$data_string = json_encode($data);
echo $data_string;
curl_setopt($ch, CURLOPT_URL, 'https://firestore.googleapis.com/v1beta1/projects/***/databases/(default)/documents/deneme/DEN6600011/TARIH');
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
$headers = [
'Content-Type: application/json',
'Content-Length: ' . strlen($data_string),
'Authorization: Bearer (MY-API-KEY)'
];
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$sonuc = curl_exec($ch);
curl_close($ch);
echo $sonuc;
I tried to do this by changing the data array like this but at that time I get an error.
$data = array(
"documents" => array(
array('fields' => array(
'Field1' => array(
'stringValue' => 'deneme'
),
'Field2' => array(
'stringValue' => 'deneme2'
)
)),
array('fields' => array(
'Field1' => array(
'stringValue' => 'deneme'
),
'Field2' => array(
'stringValue' => 'deneme2'
)
)),
));
Error:
{
"error": {
"code": 400,
"message": "Invalid JSON payload received. Unknown name \"documents\" at 'document': Cannot find field.",
"status": "INVALID_ARGUMENT",
"details": [
{
"#type": "type.googleapis.com/google.rpc.BadRequest",
"fieldViolations": [
{
"field": "document",
"description": "Invalid JSON payload received. Unknown name \"documents\" at 'document': Cannot find field."
}
]
}
]
}
}
I tried it in other ways, but I got errors in all of them. How can I add multiple data using single JSON with REST API?

Answer 1

You could use update to create multiple document
the update operation will create the document that does not exist, you should also provide the document id.
A similar question was asked here
Alternatively, you could try using the PHP Library.
Using create or set you will be able to create multiple document in one request.
As for the issue with your current way, this most-likely due to the json request body not being well defined.