Looking at the docs there aren't any good examples of how to make a POST request. I need to make a POST request with a auth_token parameter and get a response back:
response = RestClient::Request.execute(method: :post,
url: 'http://api.example.com/starthere',
payload: '{"auth_token" : "my_token"}',
headers: {"Content-Type" => "text/plain"}
)
400 bad request error:
RestClient::BadRequest: 400 Bad Request
from /Users/me/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rest-client-1.8.0/lib/restclient/abstract_response.rb:74:in `return!'
from /Users/me/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rest-client-1.8.0/lib/restclient/request.rb:495:in `process_result'
from /Users/me/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rest-client-1.8.0/lib/me/request.rb:421:in `block in transmit'
Any good examples how to make a POST request using RestClient?
EDIT:
This is how I make the request in the model:
def start
response = RestClient::Request.execute(method: :post,
url: 'http://api.example.com/starthere',
payload: '{"auth_token" : "my_token"}',
headers: {"Content-Type" => "text/plain"}
)
puts response
end
Try using a hash like this:
def start
url= 'http://api.example.com/starthere'
params = {auth_token: 'my_token'}.to_json
response = RestClient.post url, params
puts response
end
If you just want to replicate the curl request:
response = RestClient::Request.execute(method: :post, url: 'http://api.example.com/starthere', payload: {"auth_token" => "my_token"})
Both Curl and RestClient defaults to the same content type (application/x-www-form-urlencoded) when posting data the this format.
In case you land here having the same Issue, Just know that this is a common error that happens when your environment variables are not "set".
I put this in quotes because you might have set it but not available in the current terminal session!
You can check if the ENV KEY is available with:
printenv <yourenvkey>
if you get nothing then it means you need to re-add it or just put it in your bash files
FYI: Putting my ENV variables in my ~/.bash_profile fixed it
Related
I'm using Ruby on Rails 5 and I need to execute the following command in my application:
curl -F 'client_id=126581840734567' -F 'client_secret=678ebe1b3b8081231aab27dff738313' -F 'grant_type=authorization_code' -F 'redirect_uri=https://uri.com/' -F 'code=AQBi4L2Ohy3Q_N3V48OygFm0zb3gEsL985x5TIyDTNDJaLs93BwXiT1tyGYWoCg1HlBDU7ZRjUfLL5HVlzw4G-7YkVEjp6Id2WuqOz0Ylt-k2ADwDC5upH3CGVtHgf2udQhLlfDnQz5NPsnmxjg4bW3PJpW5FaQs8fn1ztgYp-ssfAf6IRt2-sI45ZC8cqqr5K_12y0Nq_Joh0H-tTfVyNLKatIxHPCqRDb3tfqgmxim1Q' https://api.instagram.com/oauth/access_token
so that it returns something like:
{"access_token": "IGQVJYS0k8V6ZACRC10WjYxQWtyMVRZAN8VXamh0RVBZAYi34RkFlOUxXZnTJsbjlEfnFJNmprQThmQ4hTckpFUmJEaXZAnQlNYa25aWURnX3hpO12NV1VMWDNMWmdIT3FicnJfZAVowM3VldlVWZAEViN1ZAidHlyU2VDMUNuMm2V", "user_id": 17231445640157812}
Is there a way to make Rails execute those types of commands? I was trying the following:
uri = URI.parse('https://api.instagram.com/oauth/access_token')
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Post.new(uri.request_uri)
request.set_form_data({
"client_id" => "126581840734567",
"client_secret" => "678ebe1b3b8081231aab27dff738313",
"grant_type" => "authorization_code",
"redirect_uri" => "http://nace.network/",
"code" => params[:code]
})
res = Net::HTTP.start(uri.hostname, uri.port) do |http|
http.request(request)
end
but I get the following error:
end of file reached
in this line:
res = Net::HTTP.start(uri.hostname, uri.port) do |http|
http.request(request)
end
You're using HTTPS, so you need to add this to your code:
Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
res = http.request(request)
end
But if you don't need persistent connections, you could also use this:
res = Net::HTTP.post_form(uri,
"client_id" => "126581840734567",
"client_secret" => "678ebe1b3b8081231aab27dff738313",
"grant_type" => "authorization_code",
"redirect_uri" => "http://nace.network/",
"code" => params[:code]
)
Also, you could consider using a library like Faraday, which is a lot easier to deal with.
Edit
This is from TinMan's comment below, sound points.
Using cURL from inside Ruby or Rails is extremely valuable. There is an incredible amount of functionality inside cURL that isn't implemented in Rails or Ruby; Even Ruby's HTTP clients have a hard time replicating it, so cURL is very acceptable depending on the needs of the application. And, depending on the application, because cURL is in compiled C, it could easily outrun pure Ruby clients.
Curl is a means of issuing HTTP (or HTTPs) requests from the command line.
You don't want to use CURL in Rails. You want to issue HTTP requests from within Rails. Using curl is okay, it's one way to issue HTTP requests from with Rails.
We can refine that down further to, you want to issue HTTP requests from Ruby. Narrowing/distilling down to the most basic version of the problem is always good to do.
We knew all this already probably - still worth writing down for us all to benefit from!
Use HTTP in Ruby
We want to use a HTTP Client. There are many but, for this I'm going to use Faraday (a gem) 'cause I like it.
You've made a good start with Ruby's built in NET:HTTP but I prefer Faraday's DSL. It results in more readable and extendable code.
So, here is a class! I barely tested this so, use as a starting point. Make sure you write some unit tests for it.
# This is a Plain Old Ruby Object (PORO)
# It will work in Rails but, isn't Rails specific.
require 'faraday' # This require is needed as it's a PORO.
class InstagramOAuth
attr_reader :code
# The code parameter will likely change frequently, so we provide it
# at run time.
def initialize(code)
#code = code
end
def get_token
connection.get('/oauth/access_token') do |request|
request.params[:code] = code
end
end
private
def connection
#connection ||= Faraday.new(
url: instagram_api_url,
params: params,
ssl: { :ca_path => https_certificate_location }
)
end
def instagram_api_url
#url ||= 'https://api.instagram.com'
end
# You need to find out where these are for your self.
def https_certificate_location
'/usr/lib/ssl/certs'
end
def params
# These params likely won't change to often so we set a write time
# in the class like this.
{
client_id: '126581840734567',
client_secret: '678ebe1b3b8081231aab27dff738313',
grant_type: 'authorization_code',
redirect_uri: 'https://uri.com/'
}
end
end
# How do we use it? Like so
# Your big old authorisation code from your question
code = 'AQBi4L2Ohy3Q_N3V48OygFm0zb3gEsL985x5TIyDTNDJaLs93BwXiT1tyGYWoCg1HlBDU'\
'7ZRjUfLL5HVlzw4G-7YkVEjp6Id2WuqOz0Ylt-k2ADwDC5upH3CGVtHgf2udQhLlfDnQz'\
'5NPsnmxjg4bW3PJpW5FaQs8fn1ztgYp-ssfAf6IRt2-sI45ZC8cqqr5K_12y0Nq_Joh0H'\
'-tTfVyNLKatIxHPCqRDb3tfqgmxim1Q'
# This will return a Faraday::Response object but, what is in it?
response = InstagramOAuth.new(code).get_token
# Now we've got a Hash
response_hash = response.to_hash
puts 'Request made'
puts "Request full URL: #{response_hash[:url]}"
puts "HTTP status code: #{response_hash[:status]}"
puts "HTTP response body: #{response_hash[:body]}"
When I ran the snippet above I got the following. The class works, you just need to tweak the request params until you get what you want. Hopefully the class demonstrates how to send HTTP requests in Ruby/Rails.
Request made
Request full URL: https://api.instagram.com/oauth/access_token?client_id=126581840734567&client_secret=678ebe1b3b8081231aab27dff738313&code=AQBi4L2Ohy3Q_N3V48OygFm0zb3gEsL985x5TIyDTNDJaLs93BwXiT1tyGYWoCg1HlBDU7ZRjUfLL5HVlzw4G-7YkVEjp6Id2WuqOz0Ylt-k2ADwDC5upH3CGVtHgf2udQhLlfDnQz5NPsnmxjg4bW3PJpW5FaQs8fn1ztgYp-ssfAf6IRt2-sI45ZC8cqqr5K_12y0Nq_Joh0H-tTfVyNLKatIxHPCqRDb3tfqgmxim1Q&grant_type=authorization_code&redirect_uri=https%3A%2F%2Furi.com%2F
HTTP status code: 405
HTTP response body:
Additional Reading
. https://lostisland.github.io/faraday/usage/
. https://github.com/lostisland/faraday/wiki/Setting-up-SSL-certificates
I am using RestClient to make a post request and i made it so i an error response back so i can print those error messages in console
i tried the following per the restclient gem documentation
begin
response = RestClient.post base_uri, params.to_json, content_type: 'application/json', accept: 'application/json'
rescue RestClient::ExceptionWithResponse => err
error = err.response
p "this is the error response #{error}"
end
when i print err.response i get the following
"this is the error response {\"error\":{\"message\":\"An active access token must be used to query information about the current us
er.\",\"type\":\"OAuthException\",\"code\":2500,\"fbtrace_id\":\"HTzmJ0CcIfd\"}}"
how do i access the message in the above hash to display it in console?
tried
p "this is the error response #{error.message}"
and it gives me "Bad request" - have no idea where it gets that
If you're just looking to output it:
error = JSON.load(err.response)
puts error['error']['message']
You can always format it a bit better:
puts '[Code %d %s] %s' % [
error['error']['code'],
error['error']['type'],
error['error']['message']
]
Note that using puts inside of a Rails process is not going to work very well. You might want to use Rails.logger.debug instead.
The response you received is in JSON. You'll need to decode the JSON first and then interact with the data. Personally, I like MultiJson for this:
begin
response = RestClient.post base_uri, params.to_json, content_type: 'application/json', accept: 'application/json'
rescue RestClient::ExceptionWithResponse => err
error = MultiJson.load(err.response)
p "this is the error response #{error[:message]}"
end
It has been a while since I have used Rails. I currently have a curl request as follows
curl -X GET -H 'Authorization: Element TOKEN, User TOKEN' 'https://api.cloud-elements.com/elements/api-v2/hubs/marketing/ping'
All I am looking to do is to be able to run this request from inside of a rails controller, but my lack of understanding when it comes to HTTP requests is preventing me from figuring it out to how best handle this. Thanks in advance.
Use this method for HTTP requests:
def api_request(type , url, body=nil, header =nil )
require "net/http"
uri = URI.parse(url)
case type
when :post
request = Net::HTTP::Post.new(uri)
request.body = body
when :get
request = Net::HTTP::Get.new(uri)
when :put
request = Net::HTTP::Put.new(uri)
request.body = body
when :delete
request = Net::HTTP::Delete.new(uri)
end
request.initialize_http_header(header)
#request.content_type = 'application/json'
response = Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') {|http| http.request request}
end
Your example will be:
api_request(:get, "https://api.cloud-elements.com/elements/api-v2/hubs/marketing/ping",nil, {"Authorization" => "Element TOKEN, User TOKEN" })
It would be something like the following. Note that the connection will be blocking, so it can tie up your server depending on how quickly the remote host returns the HTTP response and how many of these requests you are making.
require 'net/http'
# Let Ruby form a canonical URI from our URL
ping_uri = URI('https://api.cloud-elements.com/elements/api-v2/hubs/marketing/ping')
# Pass the basic configuration to Net::HTTP
# Note, this is not asynchronous. Ruby will wait until the HTTP connection
# has closed before moving forward
Net::HTTP.start(ping_uri.host, ping_uri.port, :use_ssl => true) do |http|
# Build the request using the URI as a Net::HTTP::Get object
request = Net::HTTP::Get.new(ping_uri)
# Add the Authorization header
request['Authorization'] = "Element #{ELEMENT_TOKEN}, User #{user.token}"
# Actually send the request
response = http.request(request)
# Ruby will automatically close the connection once we exit the block
end
Once the block exits, you can use the response object as necessary. The response object is always a subclass (or subclass of a subclass) of Net::HTTPResponse and you can use response.is_a? Net::HTTPSuccess to check for a 2xx response. The actual body of the response will be in response.body as a String.
I'm using rails4 + rspec 3. I want to make HTTP calls, and pass both params (such as JSON body or query string), and also HTTP headers. I was able to pass one of these two, but not both.
when I try something like:
post api_v1_post_path(#myid), {} , {"X-Some-Header" => "MyValue"}
it works fine and the headers fine, but if I do something like:
post api_v1_post_path(#myid), {"myparam" => "myvalue"} , {"X-Some-Header" => "MyValue"}
I get the following error:
Failure/Error: post api_v1_post_path(#myid), {"myparam" =>"myvalue"}, headers
ActionDispatch::ParamsParser::ParseError:
795: unexpected token at 'myparam'
Any ideas?
It seems that the POST params are expected to be JSON encoded. 795: unexpected token at 'myparam' is caused when the app tries to JSON decode the params that are not encoded.
Use .to_json with the post params.
post api_v1_post_path(#myid), {"myparam" => "myvalue"}.to_json , {"X-Some-Header" => "MyValue"}
You may want to use let:
describe 'Test' do
let( :params ){{ myparam: 'myvalue' }}
let( :headers ){{ 'X-Some-Header' => 'MyValue' }}
it 'succeeds' do
post api_v1_post_path(#myid), params.to_json , headers
NOTE: "object" is a placeholder work, as I don't think I should be saying what the controller does specifically.
so, I have multiple ways of calling my apps API, the following works in the command line:
curl -H 'Content-Type: application/xml' -d '<object><name>Test API object</name><password>password</password><description>This is a test object</description></object>' "http://acme.example.dev/objects.xml?api_key=1234"
the above command generates the following request in the devlog:
Processing ObjectsController#create to xml (for 127.0.0.1 at 2011-07-07 09:17:51) [POST]
Parameters: {"format"=>"xml", "action"=>"create", "api_key"=>"1234", "controller"=>"objects",
"object"=>{"name"=>"Test API object", "description"=>"This is a test object", "password"=>"[FILTERED]"}}
Now, I'm trying to write tests for the actions using the API, to make sure the API works, as well as the controllers.
Here is my current (broken) httparty command:
response = post("create", :api_key => SharedTest.user_api_key, :xml => data, :format => "xml")
this command generates the following request in the testlog:
Processing ObjectsController#create to xml (for 0.0.0.0 at 2011-07-07 09:37:35) [POST]
Parameters: {
"xml"=>"<object><name><![CDATA[first post]]></name>
<description><![CDATA[Things are not as they used to be]]></description>
<password><![CDATA[WHEE]]></password>
</object>",
"format"=>"xml",
"api_key"=>"the_hatter_wants_to_have_tea1",
"action"=>"create",
"controller"=>"objects
So, as you can see, the command line command actually generates the object hash from the xml, whereas the httparty command ends up staying in xml, which causes problems for the create method, as it needs a hash.
Any ideas / proper documentation?
Current documentation says that post takes an url, and "options" and then never says what options are available
**EDIT:
as per #Casper's suggestion, my method now looks like this:
def post_through_api_to_url(url, data, api_key = SharedTest.user_api_key)
response = post("create", {
:query => {
:api_key => api_key
},
:headers => {
"Content-Type" => "application/xml"
},
:body => data
})
ap #request.env["REQUEST_URI"]
assert_response :success
return response
end
unfortunately, the assert_response fails, because the authentication via the api key fails.
looking at the very of of the request_uri, the api_key isn't being set properly... it shows:
api_key%5D=the_hatter_wants_to_have_tea1"
but it should just be equals, without the %5D (right square bracket)
I think this is how you're supposed to use it:
options = {
:query => {
:api_key => 1234
},
:headers => {
"Content-Type" => "application/xml"
},
:body => "<xmlcode>goes here</xmlcode>"
}
post("/create", options)
Forgive me for being basic about it but if you only want to send one variable as a parameter, why don't you do as Casper suggests, but just do:
post("/create?api_key=1234", options)
Or rather than testing HTTParty's peculiarities in accessing your API, perhaps write your tests using Rack::Test? Very rough example...
require "rack/test"
require "nokogiri"
class ObjectsTest < Test::Unit::TestCase
include Rack::Test::Methods
def app
MyApp.new
end
def create_an_object(o)
authorize "x", "1234" # or however you want to authenticate using query params
header 'Accept', 'text/xml'
header 'Content-Type', 'text/xml'
body o.to_xml
post "/create"
xml = Nokogiri::XML(last_response.body)
assert something_logic_about(xml)
end
end