React native send a message to specific whatsapp Number

Question

I'm trying to send a text message to a WhatsApp contact from a react-native apps , i found that i can do it through Linking

Linking.openURL('whatsapp://send?text=hello');

the code above opens only whats app , i need to open a chat with a specific number is there a paramter i have to send like text ?!

Answer 1

You can use this to send a message to specific number:

Linking.openURL('whatsapp://send?text=hello&phone=xxxxxxxxxxxxx')

Answer 2

You can use this method to send whatsApp message direct to a number.

Example link: https://wa.me/919234567812?text=%7B0%7D+Balaji+CTest

export const sendWhatsAppMessage = link => {
 if (!isUndefined(link)) {
  Linking.canOpenURL(link)
   .then(supported => {
     if (!supported) {
      Alert.alert(
        'Please install whats app to send direct message to students via whats 
         app'
      );
    } else {
      return Linking.openURL(link);
    }
  })
  .catch(err => console.error('An error occurred', err));
} else {
  console.log('sendWhatsAppMessage -----> ', 'message link is undefined');
 }
};

Answer 3

Here is another way which will open the WhatsApp.

<Text
    style={{marginTop:30}}
    onPress={() => {
        Linking.openURL(
          'http://api.whatsapp.com/send?phone=91' + XXXXXXXXXX
        );
    }}>
    Send WhatsApp Message
</Text>