Step 1: Set Up Your Supabase Account

• Go to the Supabase website and sign up for an account if you don't already have one.
• Create a new project by clicking "New Project" and filling in the required details like Project Name, Password, and selecting your database region.
• Once your project is created, you will be taken to the Project dashboard.

Step 2: Create Your Database Tables

• In the Supabase dashboard, navigate to the "Database" section and click on "Tables".
• Click "New Table" to create a table for storing your poll or survey data.
• Give your table a name, such as "polls" or "surveys".
• Define the columns for your table. For example:
  • id: integer, primary key, auto-incrementing
  • question: text
  • options: JSON or text (depending on how you want to manage options)
  • created\_at: timestamp with time zone, default value: now()
• Save your new table.

Step 3: Set Up Authentication (Optional)

• Supabase provides authentication out-of-the-box. Navigate to the "Authentication" section in the dashboard.
• Enable the authentication providers you need (e.g., Email, Google, etc.).
• Configure your redirect URLs and other settings as required.
• This step is optional but recommended if you want to track who is creating or answering polls.

Step 4: Build Your Frontend

• Set up your frontend project using a framework of your choice (React, Vue, Angular, etc.).
• Install the Supabase JavaScript Client Library:
  • For example, if you are using npm, execute: `npm install @supabase/supabase-js`
• Initialize the Supabase client in your project by importing and configuring it with your project's URL and public anon key:
  • Example:

    
              import { createClient } from '@supabase/supabase-js';
    
          const supabaseUrl = 'https://xyzcompany.supabase.co';
          const supabaseKey = 'your-anon-key';
          const supabase = createClient(supabaseUrl, supabaseKey);
        </code></pre>
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  Step 5: Create Polls

   

  • Create a form in your frontend application for creating new polls or surveys.
  • Handle form submissions and send data to Supabase using the insert method:
    • Example:

      
                const createPoll = async (question, options) => {
                  const { data, error } = await supabase
                    .from('polls')
                    .insert([
                      { question, options },
                    ]);
      
              if (error) console.log('Error:', error);
              else console.log('Poll created:', data);
            };
          </code></pre>
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    Step 6: Display Polls

     

    • Fetch existing polls from Supabase and display them in your frontend application:
      • Example:

        
                  const getPolls = async () => {
                    const { data, error } = await supabase
                      .from('polls')
                      .select('\*');
        
                if (error) console.log('Error fetching polls:', error);
                else console.log('Polls:', data);
              };
            </code></pre>
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        </ul>
        
          

      • Use the fetched data to dynamically render the polls on your webpage.

       

      Step 7: Handle User Responses

       

      • Create a table for storing user responses, for example, "responses":
        • Columns might include:
          • id: integer, primary key, auto-incrementing
          • poll\_id: integer, foreign key referencing the poll
          • selection: text or integer (depending on your options structure)
          • user\_id: text (if authentication is enabled)
          • created\_at: timestamp with time zone, default value: now()
      • In your frontend, handle the user's selection and submit it to Supabase:
        • Example:

          
                    const submitResponse = async (poll\_id, selection) => {
                      const { data, error } = await supabase
                        .from('responses')
                        .insert([
                          { poll\_id, selection },
                        ]);
          
                  if (error) console.log('Error submitting response:', error);
                  else console.log('Response submitted:', data);
                };
              </code></pre>
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        Step 8: Analyze and Display Results

         

        • Fetch responses from the "responses" table and calculate the results for each poll.
        • Display the results dynamically in your frontend application.
          • Example for fetching responses:

            
                      const getResponses = async (poll\_id) => {
                        const { data, error } = await supabase
                          .from('responses')
                          .select('\*')
                          .eq('poll_id', poll_id);
            
                    if (error) console.log('Error fetching responses:', error);
                    else console.log('Responses:', data);
                  };
                </code></pre>
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          Step 9: Secure Your Data

           

          • Use Supabase's Row Level Security to restrict access to your tables:
          • Navigate to your table and click on "RLS" (Row Level Security).
          • Enable RLS and define policies to allow or restrict access as needed.
          • Example policy to allow only authenticated users to insert responses:
            • SQL:

              
                        CREATE POLICY "Allow authenticated users to insert responses" 
                        ON responses
                        FOR INSERT
                        USING (auth.uid() IS NOT NULL);
                      

           

          Step 10: Deploy Your Application

           

          • Deploy your frontend application to a hosting provider of your choice (e.g., Vercel, Netlify).
          • Ensure your Supabase client is configured with environment variables for your API URL and anon key in the production environment.
          • Monitor your Supabase project for usage and performance metrics.