In my ruby on rails code I want to send back json response to client. Since I am new to ruby on rails I do not know how can I do this. I want to send error = 1 and success = 0 as json data if data does not save to database and if it successfully saves that it should send success = 1 and error = 0 Please see my code below
here is my controller
class ContactsController < ApplicationController
respond_to :json, :html
def contacts
error = 0
success = 1
#contacts = Contact.new(params[:contact])
if #contacts.save
respond_to do |format|
format.json { render :json => #result.to_json }
end
else
render "new"
end
end
end
here is my javascript code
$('.signupbutton').click(function(e) {
e.preventDefault();
var data = $('#updatesBig').serialize();
var url = 'contacts';
console.log(data);
$.ajax({
type: 'POST',
url: url,
data: data,
dataType: 'json',
success: function(data) {
console.log(data);
}
});
});
There are tons of other elegant ways, but this is right:
class ContactsController < ApplicationController
def contacts
#contacts = Contact.new(params[:contact])
if #contacts.save
render :json => { :error => 0, :success => 1 }
else
render :json => { :error => 1, :success => 0 }
end
end
end
Add also a route to routes.rb. If you need to use html response you have to include respond_to do |format|.
You have to adjust your routes to accept json data
match 'yoururl' => "contacts#contacts", :format => :json
Then it will work
Related
I am trying to redo my react rails app with gresql so that I can deploy it with heroku. So far everything is working fine except the fetch POST request. I am getting a 404 (Not Found) error and binding.pry isn't coming up in my terminal so I can't see from the controller.
I think it might have something to do with how it is sending back json with render :json. Before I was using respond_to do |format| format.json {.
import fetch from 'isomorphic-fetch';
export function saveData(rec) {
debugger
return function(dispatch){
return fetch(`/api/v1/charts`, {
credentials: "include",
method: "POST",
headers: {
'Accept': "application/json",
'Content-Type': "application/json",
},
body: JSON.stringify(rec)
})
.then(res => {
return res.json()
}).then(data => {
debugger
dispatch({type: 'ADD_CHART', payload: data})
})
}
}
module Api::V1
class ChartsController < ApplicationController
def index
#charts = Chart.all
render json: #charts, include: ["people", "weights"]
end
def create
binding.pry
#chart = Chart.create(chart_params)
render json: #chart, include: ["people", "weights"]
end
def destroy
Chart.find(params[:id]).destroy
end
private
def chart_params
params.require(:chart).permit(:id, :date, people_attributes: [:name, weights_attributes: [:pounds, :currentDate] ])
end
end
end
module Api::V1
class PersonsController < ApplicationController
def index
#persons = Person.all
render json: #persons, include: "weights"
end
def create
binding.pry
#person = Person.create(person_params)
render json: #person, include: "weights"
end
private
def person_params
params.require(:person).permit(:id, :name, weights_attributes: [:pounds, :currentDate])
end
end
end
module Api::V1
class WeightsController < ApplicationController
def index
#weights = Weight.all
render json: #weights
end
def create
binding.pry
e = Weight.where(:person_id => params[:person_id], :currentDate => params[:currentDate])
if !e.empty?
e.first.pounds = params[:pounds]
e.first.save!
#weight = e
else
#weight = Weight.create(weight_params)
end
render json: #weight
end
private
def weight_params
params.require(:weight).permit(:id, :pounds, :currentDate, :person_id)
end
end
end
class ApplicationController < ActionController::API
end
If you've declared resource routes for your charts, you need to change this line:
return fetch(`/api/v1/charts`, {
to:
return fetch(/api/v1/chart, {
As is, charts is likely triggering a POST to your index action.
Changing my fetch to the full url and removing credentials: "include" worked
import fetch from 'isomorphic-fetch';
export function saveData(rec) {
debugger
return function(dispatch){
var url = 'http://localhost:3001/api/v1/charts';
return fetch(url, {
method: "POST",
headers: {
'Accept': "application/json",
'Content-Type': "application/json",
},
body: JSON.stringify(rec)
})
.then(res => {
return res.json()
}).then(data => {
debugger
dispatch({type: 'ADD_CHART', payload: data})
})
}
}
I am building a react-native app with rails api. I have a players_controller with create, index, update actions. I can do all things(create, index, update) from postman. But when I tried form fetch request from react action. I could only index and create player model. On update I get this error in debugger console.
:3000/players/1:1 OPTIONS http://localhost:3000/players/1
XMLHttpRequest cannot load http://localhost:3000/players/1. Response
for preflight has invalid HTTP status code 404
in Rails my players_controller.rb
class PlayersController < ApplicationController
skip_before_action :verify_authenticity_token
respond_to :json
def index
#players = Player.find_by(player_id: params[:player_id])
player = Player.all
render json: #players
end
def create
player = Player.new(player_params)
if player.save
render json: player, status: 201
else
render json: { errors: player.errors }, status: 422
end
end
def update
player = Player.find(params[:id])
player.update(player_params)
if player.save
render json: player, status: 201
else
render json: { errors: player.errors }, status: 422
end
end
private
def player_params
params.require(:player).permit(:username, :profile_pic, :player_id)
end
end
In my react-native app I have action
export const profilePicUpdate = (player, profile) => (dispatch) => {
const obj = player;
obj.profile_pic = profile;
fetch(`http://localhost:3000/players/${player.id}`, {
method: 'PATCH',
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
},
body: JSON.stringify({
obj
})
}).then(() => {
dispatch({
type: 'PROFILE_PIC_UPDATE',
payload: profile
});
NavigatorService.navigate('Profile');
}).catch((error) => {
console.log('Error', error);
});
};
It is need to see your roues.rb file, but also maybe you need to add
gem 'rack-cors'
and set up it
Rails.application.config.middleware.insert_before 0, Rack::Cors do
allow do
origins '*'
resource '*',
headers: :any,
methods: [:get, :post, :put, :patch, :delete, :options, :head]
end
end
in config/initializers/cors.rb
I am passing the basic URL required to call OLA API with x app token in HTTParty, but it gives this error:
{"code":"invalid_partner_key","message":"Partner key is not authorized"}
Here is the code:
require 'rubygems'
require 'httparty'
class ProductsController < ApplicationController
def index
lat = params[:lat].to_s
long = params[:long].to_s
#results = HTTParty.get("https://api.uber.com/v1/products?server_token=my_token&latitude="+lat+"&longitude="+long).parsed_response
#result1 = HTTParty.get("https://devapi.olacabs.com/v1/products?X-APP-TOKEN=my_token&pickup_lat=12.9491416&pickup_lng=77.64298").parsed_response
respond_to do |format|
format.json { render :json => JSON.parse(#results) }
format.json { render :json => JSON.parse(#result1) }
format.html { render "index.html.erb" }
end
end
end
Why is this happening, and how do I fix it?
Going through the olacabs docs, your X-APP-TOKEN should be passed as a header and not along with the payload. So you should be doing something like this
query = {
"pickup_lat" => 12.9491416,
"pickup_lng" => 77.64298
}
headers = {
"X-APP-TOKEN" => your_token
}
#result1 = HTTParty.get(
"https://devapi.olacabs.com/v1/products",
:query => query,
:headers => headers
).parsed_response
I didn't test this out but should give a good start to figuring your issue out.
I want send data from angularjs to rails server. For this, I have an angularjs service that I use GET,POST,DELETE,UPDATE method. I can use GET method, but for other method I cannot use, beacause I have to sent parameter to server, but I cannot do this.
record.js:
var app = angular.module('app');
app.controller('RecordCtrl',['$scope','Session','Records', function($scope, Session, Records){
$scope.records = Records.index();
}]);
recordService.js:
'use strict';
var app = angular.module('recordService', ['ngResource']);
//angular.module('recordService', ['ngResource'])
app.factory('Records', function($resource) {
return $resource('/api/record.json', {}, {
index: { method: 'GET', isArray: true},
create: { method: 'POST' }
});
})
.factory('Secure', function($resource){
return $resource('/api/record/:record_id.json', {}, {
show: { method: 'GET' },
update: { method: 'PUT' },
destroy: { method: 'DELETE' }
});
});
and I get data in rails server by below code:
class Api::V1::RecordController < Api::V1::BaseController
def index
respond_with(Record.all)
end
def show
#data = Record.find(params[:id]).to_json()
respond_with(#data)
end
def update
#data = Record.find(params[:id])
respond_to do |format|
if #data.update_attributes(record_params)
format.json { head :no_content }
else
format.json { render json: #data.errors, status: :unprocessable_entity }
end
end
end
def create
#data = Record.create(record_params)
#data.save
respond_with(#data)
end
def destroy
#data = Record.find(params[:id])
#data.destroy
respond_to do |format|
format.json { head :ok }
end
end
private
def record_params
params.require(:record).permit(:name)
end
end
I don't know how can I send method from angularjs controller to rails server. I try below code, but I don't successful:
Records.create(function() {
//"name" is the name of record column.
return {name: test3};
});
but I get below error in rails server:
Started POST "/api/record.json" for 127.0.0.1 at 2014-08-30 17:55:27 +0430
Processing by Api::V1::RecordController#create as JSON
How can I fix this problem? How can I send parameter to rails server?
I want send delete method to rails server. I know I have to send record.id to server, I use below type:
//type 1
var maskhare = { record_id: 4};
Secure.destroy(function(){
return maskhare.json;
});
//type 2
Secure.destroy(4);
but I get below error in server:
Started DELETE "/api/record" for 127.0.0.1 at 2014-08-30 19:01:21 +0430
ActionController::RoutingError (No route matches [DELETE] "/api/record"):
I fix correct url in recordService.js, but I don't know why request is send to before url again. Where is the problem?
It looks like you are successfully making a request, the last line there says that a POST request was made and went to the right controller and action.
The problem is strong parameters. You need to add name to the filtered parameters list.
private
def record_params
params.require(:record).permit(:secure, :name)
end
Also rails expects the parameters in the following format: { record: {name: 'something"} }
To fix your second problem
I would try to follow this recipe
Replace your code with this:
app.factory("Secure", function($resource) {
return $resource("/api/record/:id", { id: "#id" },
{
'show': { method: 'GET', isArray: false },
'update': { method: 'PUT' },
'destroy': { method: 'DELETE' }
}
);
});
and then
Secure.destroy({id: 4});
Keep in mind that if you add respond_to :json in your controller then you can omit the .json in the URLs. Like so:
class Api::V1::RecordController < Api::V1::BaseController
respond_to :json
...
end
I've looked through a number of these types of problems, but i can't quite figure it out.I'm really new to ruby on rails. I'm creating an application in rails that administers a printer. Basically what I'm trying to do here is POST a json object using ajax from the frontend which is written in javascript to the backend which I'm writing in rails. Basically what happens is when a user decides to checkout and print something, the json object is sent to the server and a new rails object is created using the json object's data. I want to create a rails object containing the data from the json object.
My ajax, located in the frontend javascript. Note that this code is in a completely seperate application:
$.ajax({
beforeSend: function(xhr) {
toggleModal();
xhr.setRequestHeader("Authorization", "OAuth "+auth_header);
},
url:message.action,
async:true,
type:message.method,
dataType:'json',
contentType: 'application/json',
data: JSON.stringify(userSession),
error: function(data){
toggleModal();
$.mobile.changePage($("#page_thankyou"),{ transition: "slide"});
},
success: function(data){
toggleModal();
console.log(userSession);
$.mobile.changePage($("#page_thankyou"),{ transition: "slide"});
}
})
Here is the userSession Object:
userSession = {
"kiosk_session":{
"session_id":"",
"is_order":"",
"session_items":[]
}
};
In my Kiosk_session controller:
# POST /kiosk_sessions.json
def create
puts YAML::dump params
#kiosk_session = KioskSession.new(params[:kiosk_session])
respond_to do |format|
if #kiosk_session.save
format.html { redirect_to #kiosk_session, notice: 'Kiosk session was successfully created.' }
format.json { render json: #kiosk_session, status: :created, location: #kiosk_session }
else
format.html { render action: "new" }
format.json { render json: #kiosk_session.errors, status: :unprocessable_entity }
end
end
end
and my kiosk_session model:
class KioskSession < ActiveRecord::Base
attr_accessible :id, :is_order, :is_reprint, :reprint_reason, :price,
:paid, :printed, :print_date, :session_items_attributes, :kiosk_id
has_many :session_items
has_one :kiosk_kiosk_session
belongs_to :user
belongs_to :kiosk
accepts_nested_attributes_for :session_items
before_save :before_save_callback
def before_save_callback
new_KSS = KioskKioskSession.new(:kiosk_id => self.kiosk_id, :kiosk_session_id => self.id)
new_KSS.save
self.total_price
end
def total_price
#session_items.to_a.sum {|item| session_items.total_price}
#array to hold subtotals
price = 0.00
#finds each item in session
session_items = SessionItem.where(:kiosk_session_id => self.id)
#creates array of subtotals
session_items.each do |t|
#if t.price
t.set_price
price += t.price
end
self.price = price
end
end
oh and my POST route for creating a kiosk session is /kiosk_session#create
I know this code is a mess, but any help would be greatly appreciated.