How to make an httr SOAP API request using R?

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To make an httr SOAP API request using R, follow these steps:

1. Install the httr and XML packages in R by using the following commands in R console:

install.packages("httr")
install.packages("XML")

1. Load the httr and XML packages in R.

library(httr)
library(XML)

1. Set the URL for the SOAP API.

url <- "http://example.com/soap-api"

1. Create the SOAP envelope.

soap_body <- '<?xml version="1.0" encoding="utf-8"?>
              <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
                  <soap:Body>
                      <myFunctionRequest xmlns="http://example.com/">
                          <parameter1>value1</parameter1>
                          <parameter2>value2</parameter2>
                      </myFunctionRequest>
                  </soap:Body>
              </soap:Envelope>'

Note: Replace the myFunctionRequest and parameter1, parameter2 with your desired function and parameters.

1. Make the SOAP API request using the httr package.

response <- POST(url,
                 body = soap_body,
                 add_headers("Content-Type" = "text/xml;charset=UTF-8",
                             "SOAPAction" = "http://example.com/myFunction"),
                 verbose())

Note: Replace the "http://example.com/myFunction" with your desired function.

1. Extract the response data from the API.

response_content <- content(response, as = "text")
response_xml <- xmlParse(response_content)
result <- xpathApply(response_xml, "//myResult", xmlValue)

Note: Replace "//myResult" with your desired result node.

1. Print the result.

print(result)

Your output will contain the required information from the SOAP API request.