ui only sending OPTIONS not POST http method despite working API
I am using Swagger-UI to browse my own API, built with grape and automatically documented with grape-swagger.
I've googled and tried every suggestion I can find, but I cannot get POST to work. Here's my headers:
header "Access-Control-Allow-Origin", "*"
header "Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, PATCH, DELETE"
header "Access-Control-Request-Method", "*"
header "Access-Control-Max-Age", "1728000"
header "Access-Control-Allow-Headers", "api_key, Content-Type"
I just threw in everything suggested. I've enabled all the HTTP methods in supportedSubmitMethods and I have tested the API using the POSTMAN Chrome extension and it works perfectly. Creates a user properly and returns the correct data.
However all I get with swagger post is the server reporting:
Started OPTIONS "/v1/users.json" for 127.0.0.1 at 2012-12-21 04:07:13 -0800
and swagger response looking like this:
Request URL
http://api.lvh.me:3000/v1/users.json
Response Body
Response Code
0
Response Headers
I have also tested the OPTIONS response with POSTMAN and it is below:
Allow →OPTIONS, GET, POST
Cache-Control →no-cache
Date →Fri, 21 Dec 2012 12:14:27 GMT
Server →Apache-Coyote/1.1
X-Request-Id →9215cba8da86824b97c6900fb6d97aec
X-Runtime →0.170000
X-UA-Compatible →IE=Edge
I had the same problem and just solved it, hope this helps somebody.
Swagger-UI accepts multiple parameters through POST only through a 'form' paramType, not 'body' paramType, referenced in this issue https://github.com/wordnik/swagger-ui/issues/72.
I used the branch :git => 'git://github.com/Digication/grape-swagger.git' changing 'post' request paramType to 'form'. Generated xml output for swagger_doc (probably at path/swagger_doc/api or similar) should look something like this:
<api>
<path>/api/v2/...</path>
<operations type="array">
...
<httpMethod>POST</httpMethod>
<parameters type="array">
<parameter>
<paramType>form</paramType>
...More
Not
<paramType>body</paramType>
...More
I used the grape-swagger-rails gem to automatically install swagger-ui on localhost (files can also be downloaded from the swagger-ui site), and everything works!!
Had the same problem. Fixed by adding CORS
add into Gemfile:
gem 'rack-cors', :require => 'rack/cors'
add into application.rb
config.middleware.use Rack::Cors do
allow do
origins '*'
# location of your API
resource '/*', :headers => :any, :methods => [:get, :post, :options, :put]
end
end
be sure that you've changed location of your API here.
Nice to hear you are using grape-swagger: I think it is awesome :)
I am not entirely sure you are having the same problem, but when testing locally from the browser it will try to check if the origin is the same as requested, so to make sure I do not get that error, I created a small middleware that will tell the browser we allow all origin.
I am using a rails process (created with the awesome rails-api gem), so I create a new file in lib/middleware/access_control_allow_all_origin.rb with the following content:
module Middleware
class AccessControlAllowAllOrigin
def initialize(app)
@app = app
end
def call(env)
status, headers, body = @app.call(env)
allow_all_origin!(headers)
[status, headers, body]
end
private
def allow_all_origin!(headers)
headers['Access-Control-Allow-Origin'] = '*'
headers['Access-Control-Request-Method'] = '*'
end
end
end
and at the bottom of my application.rb I just add the middleware as follows:
require 'middleware/access_control_allow_all_origin'
config.middleware.insert_after Rack::ETag, Middleware::AccessControlAllowAllOrigin
Hope this helps.
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