How to upload image in a rails json api using paperclip? - ruby-on-rails

Question

Hi I'm building a json api on rails. I have a model class Product that has a image associated with it.
Here's my Products Controller
def create
params[:product][:image] = parse_image_data(params[:product][:image]) if params[:product][:image]
product = Product.new(product_params)
product.image = params[:product][:image]
if product.save
render json: product, status: 201
else
render json: {error: product.errors}, status: 422
end
end
private
def product_params
params.require(:product).permit(:title,:description,:published,:product_type, :user_id, :image, address_attributes:[:address, :city_id])
end
def parse_image_data(image_data)
#tempfile = Tempfile.new('item_image')
#tempfile.binmode
#tempfile.write Base64.decode64(image_data[:content])
#tempfile.rewind
uploaded_file = ActionDispatch::Http::UploadedFile.new(
tempfile: #tempfile,
filename: image_data[:filename]
)
uploaded_file.content_type = image_data[:content_type]
uploaded_file
end
def clean_tempfile
if #tempfile
#tempfile.close
#tempfile.unlink
end
end
The Product Model :
class Product < ActiveRecord::Base
belongs_to :user
has_one :address
has_attached_file :image, styles: { thumb: ["64x64#", :jpg],
original: ['500x500>', :jpg] },
convert_options: { thumb: "-quality 75 -strip",
original: "-quality 85 -strip" }
validates :title, :description, :user_id, presence: true
validates :product_type, numericality:{:greater_than => 0, :less_than_or_equal_to => 2}, presence: true
accepts_nested_attributes_for :address
validates_attachment :image,
content_type: { content_type: ["image/jpeg", "image/gif", "image/png"] },
size: { in: 0..500.kilobytes }
end
I'm sending the post request using postman with the following request payload :
{
"product": {
"title":"Lumial 940",
"description": "A black coloured phone found in Hudda Metro Station",
"published": "true",
"product_type":"2",
"user_id":"1",
"address_attributes":{
"address": "Flat 16, Sharan Apartments, South City 1",
"city_id": "2"
},
"image":{
"filename": "minka.jpg",
"content": "BASE64 STRING",
"content_type": "image/jpeg"
}
}
}
But while creating, the Product is being created with the image properties but the image_path attribute is saved as null in the database. I can see the image being written in the public directory under my rails application. How can I get to save the image_path as well?
Can someone help me how to solve this?