Query a Firestore collection with an in filter

Query a Firestore collection with an in filter

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For detailed documentation that includes this code sample, see the following:

Code sample

C#

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

CollectionReference citiesRef = db.Collection("cities");
Query query = citiesRef.WhereIn("Country", new[] { "USA", "Japan" });

Go

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

cities := client.Collection("cities")
query := cities.Where("country", "in", []string{"USA", "Japan"}).Documents(ctx)

Java

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

CollectionReference citiesRef = db.collection("cities");

Query query = citiesRef.whereIn("country", Arrays.asList("USA", "Japan"));

Node.js

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

const usaOrJapan = await citiesRef.where('country', 'in', ['USA', 'Japan']).get();

PHP

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

$rangeQuery = $citiesRef->where('country', 'in', ['USA', 'Japan']);

Python

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

cities_ref = db.collection("cities")

query = cities_ref.where(filter=FieldFilter("country", "in", ["USA", "Japan"]))
return query

Ruby

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

cities_ref = firestore.col collection_path
usr_or_japan = cities_ref.where "country", "in", ["USA", "Japan"]

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