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Question 61 of 100
Advanced API Testing
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Q61: How Do You Test SOAP APIs in Postman?
🧱Core Concept
How Do You Test SOAP APIs in Postman?
Key Takeaways & Architecture Summary
- ✓Configure the HTTP method to POST; SOAP requires POST for all calls.
- ✓Set the Content-Type header to text/xml or application/soap+xml.
- ✓Define a structured XML SOAP envelope in the raw request body.
Direct Answer Summary
To test SOAP APIs in Postman, you configure an HTTP POST request, set the `Content-Type` header to `text/xml`, and paste the structured XML SOAP Envelope inside the raw request body. You then write XML-based assertions to validate the response.
⚠️ Senior Engineering Warning (Red Flag)
Do not forget to configure the SOAPAction header. Many SOAP servers inspect the SOAPAction header to route the message; omitting it can result in an HTTP 500 or routing error.
💡 STAR Architectural Explanation & Pro Tip
Because SOAP returns structured XML, you parse response payloads in Postman using the `xml2Json` helper to convert XML tags into JavaScript objects for standard assertions.
envelope.xml
SOAP XML Envelope// SOAP payload sent in Postman raw body
// Header: SOAPAction = "http://careerraah.com/GetUser"
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:user="http://careerraah.com/users">
<soapenv:Body>
<user:GetUserRequest>
<user:UserId>12</user:UserId>
</user:GetUserRequest>
</soapenv:Body>
</soapenv:Envelope>