Skip to main content

mongodb

EXPERIMENTAL

This component is experimental and therefore subject to change or removal outside of major version releases.

Inserts items into a MongoDB collection.

Introduced in version 1.0.0.

# Common config fields, showing default values
output:
  label: ""
  mongodb:
    url: mongodb://localhost:27017 # No default (required)
    database: "" # No default (required)
    username: ""
    password: ""
    collection: "" # No default (required)
    operation: update-one
    write_concern:
      w: ""
      j: false
      w_timeout: ""
    document_map: ""
    filter_map: ""
    hint_map: ""
    upsert: false
    max_in_flight: 64
    batching:
      count: 0
      byte_size: 0
      period: ""
      jitter: 0
      check: ""

Performance​

This output benefits from sending multiple messages in flight in parallel for improved performance. You can tune the max number of in flight messages (or message batches) with the field max_in_flight.

This output benefits from sending messages as a batch for improved performance. Batches can be formed at both the input and output level. You can find out more in this doc.

Fields​

url​

The URL of the target MongoDB server.

Type: string

# Examples

url: mongodb://localhost:27017

database​

The name of the target MongoDB database.

Type: string

username​

The username to connect to the database.

Type: string
Default: ""

password​

The password to connect to the database.

Secret

This field contains sensitive information that usually shouldn't be added to a config directly, read our secrets page for more info.

Type: string
Default: ""

collection​

The name of the target collection. This field supports interpolation functions.

Type: string

operation​

The mongodb operation to perform.

Type: string
Default: "update-one"
Options: insert-one, delete-one, delete-many, replace-one, update-one.

write_concern​

The write concern settings for the mongo connection.

Type: object

write_concern.w​

W requests acknowledgement that write operations propagate to the specified number of mongodb instances.

Type: string
Default: ""

write_concern.j​

J requests acknowledgement from MongoDB that write operations are written to the journal.

Type: bool
Default: false

write_concern.w_timeout​

The write concern timeout.

Type: string
Default: ""

document_map​

A bloblang map representing a document to store within MongoDB, expressed as extended JSON in canonical form. The document map is required for the operations insert-one, replace-one and update-one.

Type: string
Default: ""

# Examples

document_map: |-
  root.a = this.foo
  root.b = this.bar

filter_map​

A bloblang map representing a filter for a MongoDB command, expressed as extended JSON in canonical form. The filter map is required for all operations except insert-one. It is used to find the document(s) for the operation. For example in a delete-one case, the filter map should have the fields required to locate the document to delete.

Type: string
Default: ""

# Examples

filter_map: |-
  root.a = this.foo
  root.b = this.bar

hint_map​

A bloblang map representing the hint for the MongoDB command, expressed as extended JSON in canonical form. This map is optional and is used with all operations except insert-one. It is used to improve performance of finding the documents in the mongodb.

Type: string
Default: ""

# Examples

hint_map: |-
  root.a = this.foo
  root.b = this.bar

upsert​

The upsert setting is optional and only applies for update-one and replace-one operations. If the filter specified in filter_map matches, the document is updated or replaced accordingly, otherwise it is created.

Type: bool
Default: false
Requires version 1.0.0 or newer

max_in_flight​

The maximum number of messages to have in flight at a given time. Increase this to improve throughput.

Type: int
Default: 64

batching​

Allows you to configure a batching policy.

Type: object

# Examples

batching:
  byte_size: 5000
  count: 0
  period: 1s

batching:
  count: 10
  period: 1s

batching:
  check: this.contains("END BATCH")
  count: 0
  period: 1m

batching:
  count: 10
  jitter: 0.1
  period: 10s

batching.count​

A number of messages at which the batch should be flushed. If 0 disables count based batching.

Type: int
Default: 0

batching.byte_size​

An amount of bytes at which the batch should be flushed. If 0 disables size based batching.

Type: int
Default: 0

batching.period​

A period in which an incomplete batch should be flushed regardless of its size.

Type: string
Default: ""

# Examples

period: 1s

period: 1m

period: 500ms

batching.jitter​

A non-negative factor that adds random delay to batch flush intervals, where delay is determined uniformly at random between 0 and jitter * period. For example, with period: 100ms and jitter: 0.1, each flush will be delayed by a random duration between 0-10ms.

Type: float
Default: 0

# Examples

jitter: 0.01

jitter: 0.1

jitter: 1

batching.check​

A Bloblang query that should return a boolean value indicating whether a message should end a batch.

Type: string
Default: ""

# Examples

check: this.type == "end_of_transaction"

batching.processors​

A list of processors to apply to a batch as it is flushed. This allows you to aggregate and archive the batch however you see fit. Please note that all resulting messages are flushed as a single batch, therefore splitting the batch into smaller batches using these processors is a no-op.

Type: array

# Examples

processors:
  - archive:
      format: concatenate

processors:
  - archive:
      format: lines

processors:
  - archive:
      format: json_array