英文:
Call soap from aws lambda in C#
问题
我对无服务器 Lambda 函数还不太熟悉，但是我可以帮你翻译一下你的问题。
你想知道如何从 Lambda 函数中调用一个使用 C# 编写的简单 SOAP API。在 Visual Studio 中，你可以添加引用，但是在 Lambda 中应该怎么做呢？我无法找到相关选项。
我尝试过添加引用，但没有成功。
英文:
I’m new on serverless lambda functions and I have deployed a simple soap api by using C# and I want to know how to call it from a lambda function.
In VS you add the reference but what about lambda? I can’t figure out the option
I’ve tried to add the reference with no luck
答案1
得分: 1
没有预先构建的方法可以使用Lambda函数与SOAP服务进行交互。您需要通过创建XML输入，通过HTTP请求发送它，然后解析响应来手动处理它。
以下是使用Python的示例，但您可以在Lambda支持的任何编程语言中实现此功能：
import jsonimport requestsfrom datetime import datetime, timedeltafrom xml.dom import minidomimport osurl = os.environ['SERVICE_URL']query_service_template = """<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><SimpleQuery xmlns="http://example.ws.localhost/"><m_field>%s</m_field></SimpleQuery></soap:Body></soap:Envelope>"""def build_body(field):body = query_service_template % (field)body = body.replace("\n", "")return body.encode('utf-8')def build_headers(request):return {"Content-Type": "text/xml; charset=utf-8","Content-Length": str(len(request))}def extract_data_from_xml(response_body):xmldoc = minidom.parseString(response_body)outputField = xmldoc.getElementsByTagName('outputField').item(0).firstChildreturn {'outputField': outputField,}def lambda_handler(event, context):# Build requestrequest = build_body(event['input_field'])# Build sessionsession = requests.session()session.headers = build_headers(request)# Post requestresponse = session.post(url=url, data=request, verify=True)# Extract data from responsedata = extract_data_from_xml(str(response.content, "UTF-8"))return data
英文:
There isn't a pre-scaffolded method to interact with a SOAP service using a Lambda function.
You'd need to handle it "manually" by creating the XML input, sending it through an HTTP request, and then parsing the response.
Here's a sample using Python, but you can achieve this in any programming language that Lambda supports:
import jsonimport requestsfrom datetime import datetime, timedeltafrom xml.dom import minidomimport osurl = os.environ['SERVICE_URL']query_service_template = """<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">\t<soap:Body>\t\t<SimpleQuery xmlns="http://example.ws.localhost/">\t\t\t<m_field>%s</m_field>\t\t</SimpleQuery>\t</soap:Body></soap:Envelope>"""def build_body(field):body = query_service_template % (field)body = body.replace("\n", "")return body.encode('utf-8')def build_headers(request):return {"Content-Type": "text/xml; charset=utf-8","Content-Length": str(len(request))}def extract_data_from_xml(response_body):xmldoc = minidom.parseString(response_body)outputField = xmldoc.getElementsByTagName('outputField').item(0).firstChildreturn {'outputField': outputField,}def lambda_handler(event, context):# Build requestrequest = build_body(event['input_field'])# Build sessionsession = requests.session()session.headers = build_headers(request)# Post requestresponse = session.post(url=url, data=request, verify=True)# Extract data from responsedata = extract_data_from_xml(str(response.content, "UTF-8"))return data
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