Undefined method access_token= when I try to create vendors

[sreenak]

@ruckus I have some doubts with Quick Book Integration. I connected with Quick Books Account and my QB linking is done succesfully, Also created vendors. Now I want to list the Vendors from Quickbook that I have created from rails app. Using OAuth2
Getting this error for access token when I try to set_qb_service.
error

Here is my vendors controller.

class VendorsController < ApplicationController
  before_action :set_vendor, only: %i[ show edit update destroy ]
  before_action :set_qb_service, only: [:edit, :update, :create, :destroy]

  # GET /vendors or /vendors.json
  def index
    @vendors = Vendor.all
  end

  # GET /vendors/1 or /vendors/1.json
  def show
  end

  # GET /vendors/new
  def new
    @vendor = Vendor.new
  end

  # GET /vendors/1/edit
  def edit
  end

  # POST /vendors or /vendors.json
  def create
    @vendor = Vendor.new(vendor_params)
    vendor = Quickbooks::Model::Vendor.new
    vendor.given_name = vendor_params[:name]
    vendor.email_address = vendor_params[:email_address]
    @vendor_service.create(vendor)
    respond_to do |format|
      if @vendor.save
        format.html { redirect_to @vendor, notice: "Vendor was successfully created." }
        format.json { render :show, status: :created, location: @vendor }
      else
        format.html { render :new, status: :unprocessable_entity }
        format.json { render json: @vendor.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /vendors/1 or /vendors/1.json
  def update
    respond_to do |format|
      if @vendor.update(vendor_params)
        format.html { redirect_to @vendor, notice: "Vendor was successfully updated." }
        format.json { render :show, status: :ok, location: @vendor }
      else
        format.html { render :edit, status: :unprocessable_entity }
        format.json { render json: @vendor.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /vendors/1 or /vendors/1.json
  def destroy
    @vendor.destroy
    respond_to do |format|
      format.html { redirect_to vendors_url, notice: "Vendor was successfully destroyed." }
      format.json { head :no_content }
    end
  end


  def authenticate
    redirect_uri = oauth_callback_vendors_url
    grant_url = ::QB_OAUTH2_CONSUMER.auth_code.authorize_url(:redirect_uri => redirect_uri, :response_type => "code", :state => SecureRandom.hex(12), :scope => "com.intuit.quickbooks.accounting")
    redirect_to grant_url
  end

  def oauth_callback
    if params[:state].present?
      redirect_uri = oauth_callback_vendors_url
      if resp = ::QB_OAUTH2_CONSUMER.auth_code.get_token(params[:code], :redirect_uri => redirect_uri )
        quickbooks_credentials = QuickbooksCredential.create(access_token: resp.token, refresh_token: resp.refresh_token, realm_id: params[:realmId])
      end
        flash.now[:notice] = 'Your Quick Book Account has been successfully linked!'
        @vendors = Vendor.all
    end
  end

  private
  def set_qb_service
     quickbooks_credentials = QuickbooksCredential.first
     qb_access_token = quickbooks_credentials.access_token
     qb_refresh_token = quickbooks_credentials.refresh_token
     access_token = OAuth2::AccessToken.new(::QB_OAUTH2_CONSUMER, qb_access_token, {refresh_token: qb_refresh_token})
     @vendor_service = Quickbooks::Model::Vendor.new
     @vendor_service.access_token = access_token
     @vendor_service.company_id = quickbooks_credentials.quickbooks_realm_id
 end

    # Use callbacks to share common setup or constraints between actions.
    def set_vendor
      @vendor = Vendor.find(params[:id])
    end

    # Only allow a list of trusted parameters through.
    def vendor_params
      params.require(:vendor).permit(:name,:email_address)
    end
  end
`

What is wrong here. Kindly help me to integrate

[ruckus]

Hi @sreenak you need to attach the access_token to the Service object, NOT the model.

Please see here: https://github.com/ruckus/quickbooks-ruby#getting-started---retrieving-a-list-of-customers

[sreenak]

@ruckus Really Great. Thank a lot for helping me. Working fine now. Now I can retrieve vendors list that I have created from Quickbook Account to rails app. Also I can see the vendors that I created from rails app in QuickBook also.