egutierrez
9f5e6791db
Funciones CRUD completas para BigQuery: auth, datasets, tables, queries, jobs, routines, load/export. Tipo BQClient como wrapper del SDK oficial.
57 lines
1.6 KiB
Markdown
57 lines
1.6 KiB
Markdown
---
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name: bq_auth
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kind: function
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lang: py
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domain: infra
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version: "1.0.0"
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purity: impure
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signature: "def bq_auth(project_id: str = '', credentials_path: str = '') -> BQClient"
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description: "Autentica contra Google BigQuery con ADC o service account JSON. Retorna un BQClient listo para usar con todas las funciones CRUD."
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tags: [bigquery, gcp, auth, google-cloud, python]
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uses_functions: []
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uses_types: []
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returns: []
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returns_optional: false
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error_type: "error_go_core"
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imports: [google-cloud-bigquery]
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params:
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- name: project_id
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desc: "ID del proyecto GCP (vacio = detectar de credenciales/entorno)"
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- name: credentials_path
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desc: "ruta a archivo JSON de service account (vacio = Application Default Credentials)"
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output: "BQClient: cliente autenticado con proyecto resuelto"
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tested: false
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tests: []
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test_file_path: ""
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file_path: "python/functions/bigquery/client.py"
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---
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## Ejemplo
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```python
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from bigquery import bq_auth
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# ADC (gcloud auth application-default login)
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client = bq_auth()
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# Proyecto explicito
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client = bq_auth("my-project-id")
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# Service account
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client = bq_auth(credentials_path="/path/to/service-account.json")
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# Context manager
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with bq_auth() as client:
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# client se cierra automaticamente
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pass
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```
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## Notas
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Tres modos de autenticacion:
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- Sin argumentos: usa Application Default Credentials (ADC) — requiere `gcloud auth application-default login`
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- Con project_id: usa ADC pero fuerza el proyecto
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- Con credentials_path: lee el JSON de service account directamente
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El BQClient wrappea `google.cloud.bigquery.Client` y expone `_client` para que las funciones del modulo lo usen internamente.
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