BBWebClient Utility Overview
Description
In BBj 18.0 and higher, the BBWebClient Utility provides an easy way
to retrieve content from web servers by wrapping Apache's HttpClient
class. The utility allows you to download web pages and interface with
REST web services by supporting HTTP GET, POST, PUT, and DELETE methods.
Example
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rem USE statements
use ::REST/BBWebClient.bbj::BBWebClient
use ::REST/BBWebClient.bbj::BBWebRequest
use ::REST/BBWebClient.bbj::BBWebResponse
rem GET JSON content from a simple HTTP request & response service
serverUrl$ = "http://httpbin.org/get"
client! = new BBWebClient()
request! = new BBWebRequest()
request!.addHeader("Accept", "application/json")
request!.setMethod("GET")
request!.setURI(serverUrl$)
response! = client!.sendRequest(request!)
rem Print out the status code
statusCode = response!.getStatusCode()
print "Requesting data from '" + serverUrl$ + "' resulted in a status code of", statusCode
rem Print out the headers
headers! = response!.getHeaders()
for i = 1 to headers!.size()-1
header! = headers!.get(i)
print " Header", i, ": ", header!.getName(), ": ", header!.getValue()
next
rem Print out the body contents
print "Content: ", response!.getBody()
rem Close the response and end
response!.close()
end
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Example Program Output
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Requesting data from 'http://httpbin.org/get' resulted in a status code of 200
Header 1: Server: gunicorn/19.8.1
Header 2: Date: Wed, 27 Jun 2018 23:35:31 GMT
Header 3: Content-Type: application/json
Header 4: Content-Length: 239
Header 5: Access-Control-Allow-Origin: *
Header 6: Access-Control-Allow-Credentials: true
Header 7: Via: 1.1 vegur
Content: {"args":{},"headers":{"Accept":"application/json","Accept-Encoding":"gz
ip,deflate","Connection":"close","Host":"httpbin.org","User-Agent":"Apache-HttpC
lient/4.5.5 (Java/1.8.0_161)"},"origin":"73.26.138.141","url":"http://httpbin.or
g/get"}
READY
>
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For complete BBWebClient documentation, click here.
See Also
BBJSONResolver