feat(cdk): connector builder support for file uploader

airbyte_cdk/models/__init__.py

@@ -19,6 +19,7 @@
     AirbyteMessage,
     AirbyteProtocol,
     AirbyteRecordMessage,
+    AirbyteRecordMessageFileReference,
     AirbyteStateBlob,
     AirbyteStateMessage,
     AirbyteStateStats,

airbyte_cdk/models/airbyte_protocol.py

@@ -8,8 +8,6 @@
 from airbyte_protocol_dataclasses.models import *  # noqa: F403  # Allow '*'
 from serpyco_rs.metadata import Alias
 
-from airbyte_cdk.models.file_transfer_record_message import AirbyteFileTransferRecordMessage
-
 # ruff: noqa: F405  # ignore fuzzy import issues with 'import *'
 
 
@@ -84,7 +82,7 @@ class AirbyteMessage:
     spec: Optional[ConnectorSpecification] = None  # type: ignore [name-defined]
     connectionStatus: Optional[AirbyteConnectionStatus] = None  # type: ignore [name-defined]
     catalog: Optional[AirbyteCatalog] = None  # type: ignore [name-defined]
-    record: Optional[Union[AirbyteFileTransferRecordMessage, AirbyteRecordMessage]] = None  # type: ignore [name-defined]
+    record: Optional[AirbyteRecordMessage] = None  # type: ignore [name-defined]
     state: Optional[AirbyteStateMessage] = None
     trace: Optional[AirbyteTraceMessage] = None  # type: ignore [name-defined]
     control: Optional[AirbyteControlMessage] = None  # type: ignore [name-defined]

airbyte_cdk/sources/concurrent_source/concurrent_read_processor.py

@@ -149,7 +149,7 @@ def on_record(self, record: Record) -> Iterable[AirbyteMessage]:
         message = stream_data_to_airbyte_message(
             stream_name=record.stream_name,
             data_or_message=record.data,
-            is_file_transfer_message=record.is_file_transfer_message,
+            file_reference=record.file_reference,
         )
         stream = self._stream_name_to_instance[record.stream_name]
 

airbyte_cdk/sources/declarative/concurrent_declarative_source.py

@@ -25,6 +25,7 @@
     PerPartitionWithGlobalCursor,
 )
 from airbyte_cdk.sources.declarative.manifest_declarative_source import ManifestDeclarativeSource
+from airbyte_cdk.sources.declarative.models import FileUploader
 from airbyte_cdk.sources.declarative.models.declarative_component_schema import (
     ConcurrencyLevel as ConcurrencyLevelModel,
 )
@@ -206,6 +207,10 @@ def _group_streams(
             # these legacy Python streams the way we do low-code streams to determine if they are concurrent compatible,
             # so we need to treat them as synchronous
 
+            supports_file_transfer = (
+                "file_uploader" in name_to_stream_mapping[declarative_stream.name]
+            )
+
             if (
                 isinstance(declarative_stream, DeclarativeStream)
                 and name_to_stream_mapping[declarative_stream.name]["type"]
@@ -322,6 +327,7 @@ def _group_streams(
                             else None,
                             logger=self.logger,
                             cursor=cursor,
+                            supports_file_transfer=supports_file_transfer,
                         )
                     )
                 elif (
@@ -353,6 +359,7 @@ def _group_streams(
                             cursor_field=None,
                             logger=self.logger,
                             cursor=final_state_cursor,
+                            supports_file_transfer=supports_file_transfer,
                         )
                     )
                 elif (
@@ -406,6 +413,7 @@ def _group_streams(
                             cursor_field=perpartition_cursor.cursor_field.cursor_field_key,
                             logger=self.logger,
                             cursor=perpartition_cursor,
+                            supports_file_transfer=supports_file_transfer,
                         )
                     )
                 else:

airbyte_cdk/sources/declarative/declarative_component_schema.yaml

@@ -1448,6 +1448,42 @@ definitions:
             - "$ref": "#/definitions/LegacyToPerPartitionStateMigration"
             - "$ref": "#/definitions/CustomStateMigration"
         default: []
+      file_uploader:
+        title: File Uploader
+        description: (experimental) Describes how to fetch a file
+        type: object
+        required:
+          - type
+          - requester
+          - download_target_extractor
+        properties:
+          type:
+            type: string
+            enum: [ FileUploader ]
+          requester:
+            description: Requester component that describes how to prepare HTTP requests to send to the source API.
+            anyOf:
+              - "$ref": "#/definitions/CustomRequester"
+              - "$ref": "#/definitions/HttpRequester"
+          download_target_extractor:
+            description: Responsible for fetching the url where the file is located. This is applied on each records and not on the HTTP response
+            anyOf:
+              - "$ref": "#/definitions/CustomRecordExtractor"
+              - "$ref": "#/definitions/DpathExtractor"
+          file_extractor:
+            description: Responsible for fetching the content of the file. If not defined, the assumption is that the whole response body is the file content
+            anyOf:
+              - "$ref": "#/definitions/CustomRecordExtractor"
+              - "$ref": "#/definitions/DpathExtractor"
+          filename_extractor:
+            description: Defines the name to store the file. Stream name is automatically added to the file path. File unique ID can be used to avoid overwriting files. Random UUID will be used if the extractor is not provided.
+            type: string
+            interpolation_context:
+              - config
+              - record
+            examples:
+              - "{{ record.id }}/{{ record.file_name }}/"
+              - "{{ record.id }}_{{ record.file_name }}/"
       $parameters:
         type: object
         additional_properties: true

airbyte_cdk/sources/declarative/extractors/record_selector.py

@@ -15,6 +15,7 @@
 )
 from airbyte_cdk.sources.declarative.interpolation import InterpolatedString
 from airbyte_cdk.sources.declarative.models import SchemaNormalization
+from airbyte_cdk.sources.declarative.retrievers.file_uploader import FileUploader
 from airbyte_cdk.sources.declarative.transformations import RecordTransformation
 from airbyte_cdk.sources.types import Config, Record, StreamSlice, StreamState
 from airbyte_cdk.sources.utils.transform import TypeTransformer
@@ -42,6 +43,7 @@ class RecordSelector(HttpSelector):
     record_filter: Optional[RecordFilter] = None
     transformations: List[RecordTransformation] = field(default_factory=lambda: [])
     transform_before_filtering: bool = False
+    file_uploader: Optional[FileUploader] = None
 
     def __post_init__(self, parameters: Mapping[str, Any]) -> None:
         self._parameters = parameters
@@ -117,7 +119,10 @@ def filter_and_transform(
             transformed_filtered_data, schema=records_schema
         )
         for data in normalized_data:
-            yield Record(data=data, stream_name=self.name, associated_slice=stream_slice)
+            record = Record(data=data, stream_name=self.name, associated_slice=stream_slice)
+            if self.file_uploader:
+                self.file_uploader.upload(record)
+            yield record
 
     def _normalize_by_schema(
         self, records: Iterable[Mapping[str, Any]], schema: Optional[Mapping[str, Any]]

airbyte_cdk/sources/declarative/models/declarative_component_schema.py

@@ -2066,6 +2066,31 @@ class Config:
     parameters: Optional[Dict[str, Any]] = Field(None, alias="$parameters")
 
 
+class FileUploader(BaseModel):
+    type: Literal["FileUploader"]
+    requester: Union[CustomRequester, HttpRequester] = Field(
+        ...,
+        description="Requester component that describes how to prepare HTTP requests to send to the source API.",
+    )
+    download_target_extractor: Union[CustomRecordExtractor, DpathExtractor] = Field(
+        ...,
+        description="Responsible for fetching the url where the file is located. This is applied on each records and not on the HTTP response",
+    )
+    file_extractor: Optional[Union[CustomRecordExtractor, DpathExtractor]] = Field(
+        None,
+        description="Responsible for fetching the content of the file. If not defined, the assumption is that the whole response body is the file content",
+    )
+    filename_extractor: Optional[str] = Field(
+        None,
+        description="Defines the name to store the file. Stream name is automatically added to the file path. File unique ID can be used to avoid overwriting files. Random UUID will be used if the extractor is not provided.",
+        examples=[
+            "{{ record.id }}/{{ record.file_name }}/",
+            "{{ record.id }}_{{ record.file_name }}/",
+        ],
+    )
+    parameters: Optional[Dict[str, Any]] = Field(None, alias="$parameters")
+
+
 class DeclarativeStream(BaseModel):
     class Config:
         extra = Extra.allow
@@ -2124,6 +2149,11 @@ class Config:
         description="Array of state migrations to be applied on the input state",
         title="State Migrations",
     )
+    file_uploader: Optional[FileUploader] = Field(
+        None,
+        description="(experimental) Describes how to fetch a file",
+        title="File Uploader",
+    )
     parameters: Optional[Dict[str, Any]] = Field(None, alias="$parameters")
 
 
@@ -2617,6 +2647,7 @@ class DynamicDeclarativeStream(BaseModel):
 DeclarativeSource1.update_forward_refs()
 DeclarativeSource2.update_forward_refs()
 SelectiveAuthenticator.update_forward_refs()
+FileUploader.update_forward_refs()
 DeclarativeStream.update_forward_refs()
 SessionTokenAuthenticator.update_forward_refs()
 DynamicSchemaLoader.update_forward_refs()

airbyte_cdk/sources/declarative/parsers/model_to_component_factory.py

@@ -106,7 +106,6 @@
 )
 from airbyte_cdk.sources.declarative.models import (
     CustomStateMigration,
-    GzipDecoder,
 )
 from airbyte_cdk.sources.declarative.models.declarative_component_schema import (
     AddedFieldDefinition as AddedFieldDefinitionModel,
@@ -228,6 +227,9 @@
 from airbyte_cdk.sources.declarative.models.declarative_component_schema import (
     ExponentialBackoffStrategy as ExponentialBackoffStrategyModel,
 )
+from airbyte_cdk.sources.declarative.models.declarative_component_schema import (
+    FileUploader as FileUploaderModel,
+)
 from airbyte_cdk.sources.declarative.models.declarative_component_schema import (
     FixedWindowCallRatePolicy as FixedWindowCallRatePolicyModel,
 )
@@ -479,6 +481,13 @@
     SimpleRetriever,
     SimpleRetrieverTestReadDecorator,
 )
+from airbyte_cdk.sources.declarative.retrievers.file_uploader import (
+    BaseFileUploader,
+    ConnectorBuilderFileUploader,
+    FileUploader,
+    FileWriter,
+    NoopFileWriter,
+)
 from airbyte_cdk.sources.declarative.schema import (
     ComplexFieldType,
     DefaultSchemaLoader,
@@ -676,6 +685,7 @@ def _init_mappings(self) -> None:
             ComponentMappingDefinitionModel: self.create_components_mapping_definition,
             ZipfileDecoderModel: self.create_zipfile_decoder,
             HTTPAPIBudgetModel: self.create_http_api_budget,
+            FileUploaderModel: self.create_file_uploader,
             FixedWindowCallRatePolicyModel: self.create_fixed_window_call_rate_policy,
             MovingWindowCallRatePolicyModel: self.create_moving_window_call_rate_policy,
             UnlimitedCallRatePolicyModel: self.create_unlimited_call_rate_policy,
@@ -1838,6 +1848,11 @@ def create_declarative_stream(
                 transformations.append(
                     self._create_component_from_model(model=transformation_model, config=config)
                 )
+        file_uploader = None
+        if model.file_uploader:
+            file_uploader = self._create_component_from_model(
+                model=model.file_uploader, config=config
+            )
 
         retriever = self._create_component_from_model(
             model=model.retriever,
@@ -1849,6 +1864,7 @@ def create_declarative_stream(
             stop_condition_on_cursor=stop_condition_on_cursor,
             client_side_incremental_sync=client_side_incremental_sync,
             transformations=transformations,
+            file_uploader=file_uploader,
             incremental_sync=model.incremental_sync,
         )
         cursor_field = model.incremental_sync.cursor_field if model.incremental_sync else None
@@ -2794,6 +2810,7 @@ def create_record_selector(
         transformations: List[RecordTransformation] | None = None,
         decoder: Decoder | None = None,
         client_side_incremental_sync: Dict[str, Any] | None = None,
+        file_uploader: Optional[FileUploader] = None,
         **kwargs: Any,
     ) -> RecordSelector:
         extractor = self._create_component_from_model(
@@ -2831,6 +2848,7 @@ def create_record_selector(
             config=config,
             record_filter=record_filter,
             transformations=transformations or [],
+            file_uploader=file_uploader,
             schema_normalization=schema_normalization,
             parameters=model.parameters or {},
             transform_before_filtering=transform_before_filtering,
@@ -2888,6 +2906,7 @@ def create_simple_retriever(
         stop_condition_on_cursor: bool = False,
         client_side_incremental_sync: Optional[Dict[str, Any]] = None,
         transformations: List[RecordTransformation],
+        file_uploader: Optional[FileUploader] = None,
         incremental_sync: Optional[
             Union[
                 IncrementingCountCursorModel, DatetimeBasedCursorModel, CustomIncrementalSyncModel
@@ -2908,6 +2927,7 @@ def create_simple_retriever(
             decoder=decoder,
             transformations=transformations,
             client_side_incremental_sync=client_side_incremental_sync,
+            file_uploader=file_uploader,
         )
 
         query_properties: Optional[QueryProperties] = None
@@ -3574,6 +3594,38 @@ def create_fixed_window_call_rate_policy(
             matchers=matchers,
         )
 
+    def create_file_uploader(
+        self, model: FileUploaderModel, config: Config, **kwargs: Any
+    ) -> BaseFileUploader:
+        name = "File Uploader"
+        requester = self._create_component_from_model(
+            model=model.requester,
+            config=config,
+            name=name,
+            **kwargs,
+        )
+        download_target_extractor = self._create_component_from_model(
+            model=model.download_target_extractor,
+            config=config,
+            name=name,
+            **kwargs,
+        )
+        emit_connector_builder_messages = self._emit_connector_builder_messages
+        file_uploader = FileUploader(
+            requester=requester,
+            download_target_extractor=download_target_extractor,
+            config=config,
+            file_writer=NoopFileWriter() if emit_connector_builder_messages else FileWriter(),
+            parameters=model.parameters or {},
+            filename_extractor=model.filename_extractor if model.filename_extractor else None,
+        )
+
+        return (
+            ConnectorBuilderFileUploader(file_uploader)
+            if emit_connector_builder_messages
+            else file_uploader
+        )
+
     def create_moving_window_call_rate_policy(
         self, model: MovingWindowCallRatePolicyModel, config: Config, **kwargs: Any
     ) -> MovingWindowCallRatePolicy:

airbyte_cdk/sources/declarative/retrievers/file_uploader/__init__.py

@@ -0,0 +1,15 @@
+from .base_file_uploader import BaseFileUploader
+from .base_file_writer import BaseFileWriter
+from .connector_builder_file_uploader import ConnectorBuilderFileUploader
+from .file_uploader import FileUploader
+from .file_writer import FileWriter
+from .noop_file_writer import NoopFileWriter
+
+__all__ = [
+    "FileUploader",
+    "FileWriter",
+    "NoopFileWriter",
+    "ConnectorBuilderFileUploader",
+    "BaseFileUploader",
+    "BaseFileWriter",
+]

airbyte_cdk/sources/declarative/retrievers/file_uploader/base_file_uploader.py

@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2025 Airbyte, Inc., all rights reserved.
+#
+
+from abc import ABC, abstractmethod
+from dataclasses import dataclass
+
+from airbyte_cdk.sources.declarative.types import Record
+
+
+@dataclass
+class BaseFileUploader(ABC):
+    """
+    Base class for file uploader
+    """
+
+    @abstractmethod
+    def upload(self, record: Record) -> None:
+        """
+        Uploads the file to the specified location
+        """
+        ...