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rest_api_pipeline.py
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from typing import Any
import dlt
from rest_api import (
RESTAPIConfig,
check_connection,
rest_api_source,
rest_api_resources,
)
@dlt.source
def github_source(github_token: str = dlt.secrets.value) -> Any:
# Create a REST API configuration for the GitHub API
# Use RESTAPIConfig to get autocompletion and type checking
config: RESTAPIConfig = {
"client": {
"base_url": "https://api.github.com/repos/dlt-hub/dlt/",
"auth": {
"type": "bearer",
"token": github_token,
},
},
# The default configuration for all resources and their endpoints
"resource_defaults": {
"primary_key": "id",
"write_disposition": "merge",
"endpoint": {
"params": {
"per_page": 100,
},
},
},
"resources": [
# This is a simple resource definition,
# that uses the endpoint path as a resource name:
# "pulls",
# Alternatively, you can define the endpoint as a dictionary
# {
# "name": "pulls", # <- Name of the resource
# "endpoint": "pulls", # <- This is the endpoint path
# }
# Or use a more detailed configuration:
{
"name": "issues",
"endpoint": {
"path": "issues",
# Query parameters for the endpoint
"params": {
"sort": "updated",
"direction": "desc",
"state": "open",
# Define `since` as a special parameter
# to incrementally load data from the API.
# This works by getting the updated_at value
# from the previous response data and using this value
# for the `since` query parameter in the next request.
"since": {
"type": "incremental",
"cursor_path": "updated_at",
"initial_value": "2024-01-25T11:21:28Z",
},
},
},
},
# The following is an example of a resource that uses
# a parent resource (`issues`) to get the `issue_number`
# and include it in the endpoint path:
{
"name": "issue_comments",
"endpoint": {
# The placeholder {issue_number} will be resolved
# from the parent resource
"path": "issues/{issue_number}/comments",
"params": {
# The value of `issue_number` will be taken
# from the `number` field in the `issues` resource
"issue_number": {
"type": "resolve",
"resource": "issues",
"field": "number",
}
},
},
# Include data from `id` field of the parent resource
# in the child data. The field name in the child data
# will be called `_issues_id` (_{resource_name}_{field_name})
"include_from_parent": ["id"],
},
],
}
yield from rest_api_resources(config)
def load_github() -> None:
pipeline = dlt.pipeline(
pipeline_name="rest_api_github",
destination="lancedb",
dataset_name="rest_api_data",
)
load_info = pipeline.run(github_source())
print(load_info)
def load_pokemon() -> None:
pipeline = dlt.pipeline(
pipeline_name="rest_api_pokemon",
destination="lancedb",
dataset_name="rest_api_data",
)
pokemon_source = rest_api_source(
{
"client": {
"base_url": "https://pokeapi.co/api/v2/",
# If you leave out the paginator, it will be inferred from the API:
# paginator: "json_response",
},
"resource_defaults": {
"endpoint": {
"params": {
"limit": 1000,
},
},
},
"resources": [
"pokemon",
"berry",
"location",
],
}
)
def check_network_and_authentication() -> None:
(can_connect, error_msg) = check_connection(
pokemon_source,
"not_existing_endpoint",
)
if not can_connect:
pass # do something with the error message
check_network_and_authentication()
load_info = pipeline.run(pokemon_source)
print(load_info)
if __name__ == "__main__":
load_github()
load_pokemon()