python之AWS lambda 通过 SES 发送带附件的电子邮件 > ParamValidationError : Parameter validation failed

我正在使用 AWS lambda 通过 Amazon SES 发送带有附件的电子邮件。存储在 S3 存储桶中的附件文件。有没有人有使用 lambda 和通过 lambda 函数通过 ses 发送电子邮件的经验？

这是我的代码:

import boto3 
from email.mime.text import MIMEText 
from email.mime.application import MIMEApplication 
from email.mime.multipart import MIMEMultipart 
 
ses = boto3.client('ses') 
s3_client = boto3.client('s3') 
 
to_emails = ["xxx", "xxx"] 
 
COMMASPACE = ', ' 
 
def lambda_handler(event, context): 
    # create raw email 
    msg = MIMEMultipart() 
    msg['Subject'] = 'Email subject' 
    msg['From'] = 'xxx' 
    msg['To'] = COMMASPACE.join(to_emails)  ## joined the array of email strings 
    # edit: didn't end up using this ^ 
 
    part = MIMEText('Attached is an important CSV') 
    msg.attach(part) 
 
    file_name = s3_client.download_file('x_file', 'x.jpg', '/tmp/x.jpg') 
 
    if file_name: 
        part = MIMEApplication(open(file_name, "rb").read()) 
        part.add_header('Content-Disposition', 'attachment', filename=file_name) 
        msg.attach(part) 
 
    ses.send_raw_email(RawMessage=msg.as_string(), Source=msg['From'], Destinations=to_emails) 

found this error:

Parameter validation failed: 
Invalid type for parameter RawMessage, value: Content-Type: multipart/mixed; boundary="===============1951926695068149774==" 
MIME-Version: 1.0 
Subject: Email subject 
From: xxx 
To: xxx, xxx 
 
--===============1951926695068149774== 
Content-Type: text/plain; charset="us-ascii" 
MIME-Version: 1.0 
Content-Transfer-Encoding: 7bit 
 
Attached is an important CSV 
--===============1951926695068149774==-- 
, type: <type 'str'>, valid types: <type 'dict'>: ParamValidationError 
Traceback (most recent call last): 
  File "/var/task/lambda_function.py", line 33, in lambda_handler 
    ses.send_raw_email(RawMessage=msg.as_string(), Source=msg['From'], Destinations=to_emails) 
  File "/var/runtime/botocore/client.py", line 278, in _api_call 
    return self._make_api_call(operation_name, kwargs) 
  File "/var/runtime/botocore/client.py", line 548, in _make_api_call 
    api_params, operation_model, context=request_context) 
  File "/var/runtime/botocore/client.py", line 601, in _convert_to_request_dict 
    api_params, operation_model) 
  File "/var/runtime/botocore/validate.py", line 270, in serialize_to_request 
    raise ParamValidationError(report=report.generate_report()) 
ParamValidationError: Parameter validation failed: 
Invalid type for parameter RawMessage, value: Content-Type: multipart/mixed; boundary="===============1951926695068149774==" 
MIME-Version: 1.0 
Subject: Email subject 
From: xxx 
To:xxx, xxx 
 
--===============1951926695068149774== 
Content-Type: text/plain; charset="us-ascii" 
MIME-Version: 1.0 
Content-Transfer-Encoding: 7bit 
 
Attached is an important CSV 
--===============1951926695068149774==-- 
, type: <type 'str'>, valid types: <type 'dict'> 

请您参考如下方法:

要解决您应该使用的问题:

ses.send_raw_email(RawMessage={ 
                       'Data': msg.as_string(), 
                   },  
                   Source=msg['From'],  
                   Destinations=to_emails 
                   ) 

如 documentation 中所述