I am new to Scala and Spray. I have written a simple REST API according to the instructions given in this blog post.
http://www.smartjava.org/content/first-steps-rest-spray-and-scala
And all are working as expected.
Now I want to modify the program to print the HTTP headers like Encoding, Language, remote-address, etc.. I would like to print all the header information (purpose is to log these information)
But I could not find a proper documentation or examples. Could anyone please help me to get this done.
If you need to extract a specific header:
optionalHeaderValueByName("Encoding") { encodingHeader =>
println(encodingHeader)
complete("hello")
}
alternatively you can access the raw request object and directly extractive the headers. Here's a custom directive that logs all the headers:
def logHeaders(): Directive0 = extract(_.request.headers).map(println)
Usage
logHeaders() {
complete("hello")
}
Here's how I got it working.
Directive:
def logHeaders(innerRoute: Route): (RequestContext => Unit) = extract(_.request.headers) { headers =>
headers.foreach(h => logger.info("header: {} = {}", h.name, h.value))
innerRoute
}
Usage:
logHeaders() {
complete("hello")
}
Related
I am creating an SSE simple example, I create an API with Scalatra and get responses by the interval with the header text/event-stream. It looks like Scalatra doesn't support this type.
This is my simple code,
get("/hello") {
val headers = Map(
"Cache-Control" -> "no-cache",
"Content-Type" -> "text/event-stream",
"Connection" -> "close")
Ok("data: hello world", headers)
}
But I only get a message from server. I want to do something like akka-http
get {
complete {
Source.tick(2.seconds, 2.seconds, ())
.map(_ => LocalTime.now())
.map(dateTimeToServerSentEvent)
.via(WithHeartbeats(1.second))
}
}
Do you guys have any idea how to get a event-stream from by Scalatra?
Thank you.
I need to create a Groovy post build script in Jenkins and I need to make a request without using any 3rd party libraries as those can't be referenced from Jenkins.
I tried something like this:
def connection = new URL( "https://query.yahooapis.com/v1/public/yql?q=" +
URLEncoder.encode(
"select wind from weather.forecast where woeid in " + "(select woeid from geo.places(1) where text='chicago, il')",
'UTF-8' ) )
.openConnection() as HttpURLConnection
// set some headers
connection.setRequestProperty( 'User-Agent', 'groovy-2.4.4' )
connection.setRequestProperty( 'Accept', 'application/json' )
// get the response code - automatically sends the request
println connection.responseCode + ": " + connection.inputStream.text
but I also need to pass a JSON in the POST request and I'm not sure how I can do that. Any suggestion appreciated.
Executing POST request is pretty similar to a GET one, for example:
import groovy.json.JsonSlurper
// POST example
try {
def body = '{"id": 120}'
def http = new URL("http://localhost:8080/your/target/url").openConnection() as HttpURLConnection
http.setRequestMethod('POST')
http.setDoOutput(true)
http.setRequestProperty("Accept", 'application/json')
http.setRequestProperty("Content-Type", 'application/json')
http.outputStream.write(body.getBytes("UTF-8"))
http.connect()
def response = [:]
if (http.responseCode == 200) {
response = new JsonSlurper().parseText(http.inputStream.getText('UTF-8'))
} else {
response = new JsonSlurper().parseText(http.errorStream.getText('UTF-8'))
}
println "response: ${response}"
} catch (Exception e) {
// handle exception, e.g. Host unreachable, timeout etc.
}
There are two main differences comparing to GET request example:
You have to set HTTP method to POST
http.setRequestMethod('POST')
You write your POST body to outputStream:
http.outputStream.write(body.getBytes("UTF-8"))
where body might be a JSON represented as string:
def body = '{"id": 120}'
Eventually it's good practice to check what HTTP status code returned: in case of e.g. HTTP 200 OK you will get your response from inputStream while in case of any error like 404, 500 etc. you will get your error response body from errorStream.
I'm trying to create a review commit through Github's v3 API and am not succeeding. Consider this repository. There's a single pull request and for the purposes of this question let's say I want to leave a 'changes requested' review on that PR. Here's the code I've got:
#!/usr/bin/env python3
import requests
import json
TOKEN='YOUR_TOKEN_HERE'
REPO = "blt/experiment-repo"
PR_NUM = 1
COMMIT_SHA_1 = "4160bee478c3c985eaaa35f161cc922fe20b354a"
COMMIT_SHA_2 = "df9d13a2e35f9b6c228e1f30ea30585ed85af26a"
def main():
pr_comment_headers = {
'user-agent': 'benedikt/0.0.1',
'Authorization': 'token %s' % TOKEN,
# Accept header per
# https://developer.github.com/changes/2016-12-16-review-requests-api/
'Accept': 'application/vnd.github.black-cat-preview+json',
}
msg = "BLEEP BLOOP I AM A ROBOT"
payload = { 'commit_id': COMMIT_SHA_2,
'body': msg,
'event': "REQUEST_CHANGES" }
# Per https://developer.github.com/v3/pulls/reviews/#create-a-pull-request-review
review_url = "https://api.github.com/repos/%s/pulls/%s/reviews" % (REPO, PR_NUM)
res = requests.post(review_url, headers = pr_comment_headers,
json = json.dumps(payload))
print(res)
print(res.text)
if __name__ == '__main__':
main()
I've marked in code comments where I've discovered the API endpoints to hit and with what payloads. Excepting, I must have goofed somewhere because when I run the above program I receive:
<Response [422]>
{"message":"Validation Failed","errors":["Variable commitOID of type GitObjectID was provided invalid value","Variable event of type PullRequestReviewEvent was provided invalid value"],"documentation_url":"https://developer.github.com/v3/pulls/reviews/#create-a-pull-request-review"}
I've verified that the commit SHAs are the exact ones that Github shows and REQUEST_CHANGES is the string in the documentation.
What am I missing?
I think you need to let requests encode the request body instead of encoding it yourself with json.dumps(), something like this: requests.post(..., json=payload)
I am developing a service that is called on one path with different query parameters. I have bind a Route to Http:
val route: Route = {
get {
pathPrefix("myRoute"){
parameterMap{ params =>
complete(
MyHandler.genExternResponse(params)
)
}
}
}
val bindingFuture = Http().bindAndHandleAsync(Route.asyncHandler(new myEndpoint().route), "localhost", 8081)
Since i have no influence on what parameters are used, i can't eliminate the calls that contain not-encoded special chars like German umlauts or trademark signs.
for example
www.myhost.com/myRoute?param1=asd¶m2=adäöü
I know that those URLs are not valid But one of the requirements is that even requests with those chars are accepted und that i handle them with URL encoding.
The problem is that when i call the service like above, akka-http rejects the request with the Response-status 400 without even handing it to my code.
Is there a way that i can catch those request and handle them by myself or let akka-http URL-encode the special chars for me.
edit:
will not solve
Try This
val route: Route = {
get {
pathPrefix("myRoute"){
parameters('params)
{ params =>
complete(
MyHandler.genExternResponse(params)
)
}
}
}
val bindingFuture = Http().bindAndHandleAsync(Route.asyncHandler(new myEndpoint().route), "localhost", 8081)
Am trying to query netsuite api for currencies. The following soap request works for me in SOAP UI client. But i am having a hard time trying to get the same working with ruby's savon gem version 0.9.7.
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:messages_2012_2.platform.webservices.netsuite.com" xmlns:urn1="urn:core_2012_2.platform.webservices.netsuite.com">
<soapenv:Header>
<urn:passport>
<urn1:email>xxx#abc.com</urn1:email>
<urn1:password>xxx</urn1:password>
<urn1:account>xxx</urn1:account>
</urn:passport>
</soapenv:Header>
<soapenv:Body>
<urn:getAll>
<urn:record recordType="currency"/>
</urn:getAll>
</soapenv:Body>
</soapenv:Envelope>
Basically i am not able to set the attribute on the urn:record element. The following is not working:
response = client.request :urn, :get_all do
soap.body = { "urn:record" => { :attributes! => { "recordType" => "currency" } } }
end
Please advise.
As explained on http://savonrb.com the key in the attributes! hash has to match the XML tag. You want to write something like this:
response = client.request :urn, :get_all do
soap.body = {'urn:record'=>'',
:attributes!=>{'urn:record'=>{'recordType'=>'currency'}}
}
end
Please let us know whether this solves it for you.
Double-check the raw soap request. :get_all may need to be "getAll" to have savon take you literally; it may be changing it to GetAll
In new versioin of savon you can place :attributes in the local context for the operation tag:
#interaction_client.call(:retrieve_interaction, message: message_hash, :attributes => { 'attachmentInfo' => include_attachments.to_s })
In this case, the attachmentInfo attribute will be placed into the main operation tag linked with operation, in this example this would be the ns:RetrieveInteractionRequest tag.
Please note that the syntax does not contains the exclamation mark.