Function Compute:Processe uploads de arquivos do OSS com uma função de evento

# -*- coding: utf-8 -*-
import logging
import json
# import oss2  # Uncomment this line if you need to create an OSS client.
logger = logging.getLogger()

def handler(event, context):  # The handler is the entry point for code execution.
    logger.info("Parsing event information...")
    input_events = json.loads(event)
    if not input_events.get('events'):  # Check the format of the input event.
        raise Exception("Invalid event format: The events array does not exist or is empty.")
    event_obj = input_events['events'][0]
    bucket_name = event_obj['oss']['bucket']['name']  # Parse the OSS bucket name.
    object_name = event_obj['oss']['object']['key']  # Parse the file name.
    region = context.region  # Parse the function region.
    logger.info(f"OSS bucket name: {bucket_name}, File name: {object_name}, Region: {region}")
    # If you have an OSS bucket, you can uncomment the following line to create an OSS client instance.
    # bucket = get_bucket(region, bucket_name, context)
    bucket = None
    result = process_event(bucket, object_name)  # Call a helper function to execute the event processing logic.
    return result

def process_event(bucket, object_name):
    logger.info("Starting event processing...")
    # You can write your event processing logic here.
    # zip_file = download_file(bucket, object_name)
    # result = extract_and_upload(bucket, zip_file)
    logger.info("Event processing completed.")
    result = 0
    return result  # A return value of 0 indicates that the event is successfully processed.

# def get_bucket(region, bucket_name, context):
#     # Create an OSS bucket client instance here. The required identity authentication information can be obtained from the context.
#     creds = context.credentials  # Obtain the temporary key.
#     auth = oss2.StsAuth(
#         creds.access_key_id,
#         creds.access_key_secret,
#         creds.security_token)
#     endpoint = f'oss-{region}-internal.aliyuncs.com'
#     bucket = oss2.Bucket(auth, endpoint, bucket_name)
#     return bucket

# def download_file(bucket, object_name):
#     # This is the sample code for downloading a file from OSS.
#     try:
#         file_obj = bucket.get_object(object_name)
#         return file_obj
#     except oss2.exceptions.OssError as e:
#         logger.error(f"Failed to download the file: {e}")

# def extract_and_upload(bucket, file_obj):
#     # You can define the logic for decompressing and uploading files to OSS here.
#     return 0;

'use strict';
// import OSSClient from 'ali-oss'; // Uncomment this line if you need to create an OSS client.

export const handler = async (event, context) => { // The handler is the entry point for code execution.
  console.log("Parsing event information...");
  const inputEvents = JSON.parse(event);
  if (!Array.isArray(inputEvents.events) || inputEvents.events.length === 0) { // Check the format of the input event.
    throw new Error("Invalid event format: The events array does not exist or is empty.");
  }
  const eventObj = inputEvents.events[0];
  const bucketName = eventObj.oss.bucket.name; // Parse the OSS bucket name.
  const objectName = eventObj.oss.object.key; // Parse the file name.
  const region = context.region;  // Parse the function region.
  console.log(`OSS bucket name: ${bucketName}, File name: ${objectName}, Region: ${region}`);
  // If you have an OSS bucket, you can uncomment the following line to create an OSS client instance.
  // const bucket = getBucket(region, context)
  const bucket = null;
  const result = processEvent(bucket, objectName); // Call a helper function to execute the event processing logic.
  return result;
};

async function processEvent (bucket, objectName) {
  console.log("Starting event processing...");
  // You can write your event processing logic here.
  // const zipFile = downloadFile(bucket, objectName);
  // const result = extractAndUpload(bucket, zipFile);
  console.log("Event processing completed.");
  const result = 0;
  return result;
}

// function getBucket (region, context) {
//   // Create an OSS bucket client instance here. The required identity authentication information can be obtained from the context.
//   const bucket = new OSSClient({
//     region: region,
//     accessKeyId: context.credentials.accessKeyId,
//     accessKeySecret: context.credentials.accessKeySecret,
//     securityToken: context.credentials.securityToken
//   });
//   return bucket;
// }

// async function downloadFile (bucket, objectName) {
//   try {
//     // This is the sample code for downloading a file from OSS.
//     const result = await bucket.get(objectName, objectName);
//     console.log(result);
//     return result;
//   } catch (e) {
//     console.log(e);
//   }
// }

// async function extractAndUpload (bucket, zipFile) {
//     // You can define the logic for decompressing and uploading files to OSS here.
//     return 0;
// }