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Specify source format, so json uploads work. #130

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Oct 16, 2015
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Specify source format, so json uploads work. #130

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37 changes: 24 additions & 13 deletions bigquery/api/load_data_by_post.py
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Original file line number Diff line number Diff line change
Expand Up @@ -50,26 +50,35 @@ def load_data(schema_path, data_path, project_id, dataset_id, table_id):
credentials = GoogleCredentials.get_application_default()
bigquery = discovery.build('bigquery', 'v2', credentials=credentials)

# Infer the data format from the name of the data file.
source_format = 'CSV'
if data_path[-5:].lower() == '.json':
source_format = 'NEWLINE_DELIMITED_JSON'

# Post to the jobs resource using the client's media upload interface. See:
# http://developers.google.com/api-client-library/python/guide/media_upload
insert_request = bigquery.jobs().insert(
projectId=project_id,
# Provide a configuration object. See:
# https://cloud.google.com/bigquery/docs/reference/v2/jobs#resource
body={
"configuration": {
"load": {
"schema": {
"fields": json.load(open(schema_path, 'r'))
'configuration': {
'load': {
'schema': {
'fields': json.load(open(schema_path, 'r'))
},
'destinationTable': {
'projectId': project_id,
'datasetId': dataset_id,
'tableId': table_id
},
"destinationTable": {
"projectId": project_id,
"datasetId": dataset_id,
"tableId": table_id
}
'sourceFormat': source_format,
}
}
},
media_body=MediaFileUpload(
data_path,
mimetype="application/octet-stream"))

mimetype='application/octet-stream'))
job = insert_request.execute()

print('Waiting for job to finish...')
Expand All @@ -78,12 +87,14 @@ def load_data(schema_path, data_path, project_id, dataset_id, table_id):
projectId=job['jobReference']['projectId'],
jobId=job['jobReference']['jobId'])

# Poll the job until it finishes.
while True:
result = status_request.execute(num_retries=2)

if result['status']['state'] == 'DONE':
if 'errorResult' in result['status']:
raise RuntimeError(result['status']['errorResult'])
if result['status'].get('errors'):
raise RuntimeError('\n'.join(
e['message'] for e in result['status']['errors']))
print('Job complete.')
return

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