This library implements database operations using Reactive Programming for MongoDB
Questions tagged [spring-data-mongodb-reactive]
62 questions
1
vote
0 answers
Cannot convert a String to Decimal128 in @Query usgin Spel
I'm trying to do a convertion from String to Decimal128 in a @Query to perform a paging operation using the following snippet:
public interface ExpenseCollectionRepository extends ReactiveMongoRepository {
…
Sergio Luigi Alves
- 31
- 8
1
vote
1 answer
MongoDB: how to aggregate from multiple collections with same aggregation pipeline
I'm trying to get aggregations with same aggregation pipeline including $match and $group operations from multiple collections.
For example,
with a users collection and collections of questions, answers and comments where every document has authorId…
grus
- 13
- 4
1
vote
1 answer
Timed out after 30000 ms while waiting for a server that matches ReadPreferenceServerSelector{readPreference=primary}
I'm using reactive mongodb within a spring boot application, but I get the errors bellow:
org.springframework.data.mongodb.core.ReactiveMongoTemplate - Streaming aggregation: [{ "$match" : { "type" : { "$in" : ["INACTIVE_SITE", "DEVICE_NOT_BILLED",…
mr.Penguin
- 1,166
- 1
- 8
- 24
1
vote
0 answers
Spring Data MongoDB not able to load reference collection (@DocumentReference)
In Spring data findAll method reference object is coming as null
I am using Reactive Mongo Repository
Ex Parent Object
@Data
@Document(collection = "country")
public class CountryBean {
@Id
private String id;
private String name;
…
Kuldeep
- 599
- 11
- 28
1
vote
0 answers
Can Reactive Mongo Template execute MergeOperation?
I want to know if it is possible to execute MergeOperation snippet:
MergeOperation mergeOperation = Aggregation.merge()
.intoCollection("someCollection")
.on("_id")
…
Buckpo
- 23
- 3
1
vote
0 answers
Reactive Spring Data Mongo Merge Operation
I want to write to MongoDB with Spring Integration and Project Reactor. My needed command is a merge operation, so I started that with the following snippet:
MergeOperation mergeOperation = Aggregation.merge()
…
Buckpo
- 23
- 3
1
vote
1 answer
Map one mongodb field to two POJO properties
I have a property on my mongodb entity, lets call it foo.
When I retrieve this property, i want its value to be set on two different properties of my POJO, foo and bar
So if a document is registered as:
{
"_id": "xxxxxx",
"foo": "123",
}
When…
fmbordignon
- 73
- 6
1
vote
1 answer
Use $function (javascript) in mongo repository @Aggregation pipeline
I have the below query that runs fine in mongo shell. I have to use this from my spring boot java application.
db.UserGames.aggregate([
{ $match: {$and: [{timestamp: {$gte : ISODate("2021-12-14T09:34:51.000Z"), $lte:…
Ritika Agarwal
- 11
- 2
1
vote
2 answers
"Found ambiguous parameter type Void"? Spring Integration with Project Reactor
I'm using Project Reactor with Spring Integration to read from Kafka and write to MongoDB, and I the Kafka consume works well, but the .handle(MongoDb.reactiveOutboundChannelAdapter(mongoFactory)) stucks. I've seen that the internal code of this…
user17954501
- 15
- 3
1
vote
0 answers
How to paginate an embedded documents in mongodb
I've a project based on a mongodb database and I need to accomplish the following description in a very optimized way. My database has a Document with another embedded documents and I need to apply pagination in this embedded documents, eg:
{ _id:…
Miguel Andrade
- 346
- 3
- 13
1
vote
1 answer
How to get distinct Items by one field in MongoDB using @Query annotation with pagination enabled
I'm trying to get the list of distinct items by a specific field (userId). Currently I'm using this kind of approach to get records from MongoDB using ReactiveCrudRepository. Additionally, I want this result to be further filtered and get only the…
Powsikan
- 11
- 3
1
vote
0 answers
Kotlin suspend function in Reactive Data Repositores return null
I am facing a "problem" with mongo reactive repositories. I am trying to use kotlin's coroutines and instead of writing fun declaration like this:
fun findEntityById(id: String) : Mono
I wrote a suspend function like this :
suspend fun…
Barracuda
- 477
- 5
- 19
1
vote
0 answers
Spring WebFlux Reactive MongoDB - how to combine two change streams?
In my app i want to combine 2 change streams to listen to changes to some filter object and to the inserts/deletes to the collection which is actually in question (to which i apply the filter residing in a different collection)
Therefore i have an…
Mike
- 63
- 1
- 7
1
vote
0 answers
NestedClass test failing, because Spring-Data-Mongo-Reactive is closing MongoDb connection (state should be: server session pool is open)
1) Problem Description:
I am using a Spring-Data-Mongo-Reactive, Testcontainers and JUnit 05;
I have a Test-Class with simple-test and ‘Nested-Test-Class’(which has a simple test, as well);
When, JUnit tests the NestedClass, the MongoDb Connection…
GtdDev
- 748
- 6
- 14
1
vote
1 answer
Reactor flux throws illegalArgumentException - suspecting due to bufferTimeout
I have a spring application which builds a reactive pipeline as follows:
buildPipeline(). // returns a flux based on changeStreamEvents or Kafka receives
.bufferTimeout( capacity, Duration.ofSeconds(1))
. flatMap( r -> {
element x =…
user1803_stacker
- 35
- 4