BA
Better Auth•6d ago
Eddie1O

social signUp flow

I want to enable my users to sign up with Apple. I have additional required fields on the user model: 
user: {
    additionalFields: {
      surname: {
        type: "string",
        required: true,
      },
      type: {
        type: "string",
        required: true,
      },
    },
  },
user: {
    additionalFields: {
      surname: {
        type: "string",
        required: true,
      },
      type: {
        type: "string",
        required: true,
      },
    },
  },
Using email signUp flow I can add those fields as 1st argument to the signUp function: authClient.signUp.email(registerFormData, { ... How can I do the same using authClient.signIn.social({provider: 'apple' ...
2 Replies
KiNFiSH
KiNFiSH•6d ago
if the data actually coming from the apple provider - you can us mapUserToProfile - 
export const auth = betterAuth({
  // ... other config
  socialProviders: {
    apple: {
      enabled: true,
      clientId: process.env.APPLE_CLIENT_ID!,
      clientSecret: process.env.APPLE_CLIENT_SECRET!,
      mapProfileToUser: async (profile) => {
        return {
          // Basic fields from Apple
          name: profile.name?.firstName || '',
          email: profile.email,
          emailVerified: true,
          
          // Your additional required fields
          surname: profile.name?.lastName || '', // If Apple provides lastName
          type: 'default', // Set a default value
       
        };
      }
    }
  }
});
export const auth = betterAuth({
  // ... other config
  socialProviders: {
    apple: {
      enabled: true,
      clientId: process.env.APPLE_CLIENT_ID!,
      clientSecret: process.env.APPLE_CLIENT_SECRET!,
      mapProfileToUser: async (profile) => {
        return {
          // Basic fields from Apple
          name: profile.name?.firstName || '',
          email: profile.email,
          emailVerified: true,
          
          // Your additional required fields
          surname: profile.name?.lastName || '', // If Apple provides lastName
          type: 'default', // Set a default value
       
        };
      }
    }
  }
});
Eddie1O
Eddie1OOP•6d ago
Thank You! Apple is sending this data (firstName, lastName) somewhat differently - the profile has some tokens, dates and email, but no names. I can find the data in the network tab after betterAuth throws an error at me (surname not provided). But I'm not sure how to access it

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