Is posible check if a number phone have whatsapp?

[webserveis]

Recently whatsapp add feature in link, start chat without add contact in contacts database, using direct link

https://api.whatsapp.com/send?phone=XXXXXXXX

is posible check if the phone have a whatsapp?

[omegaes]

I don't think it is possible, this link need authentication

[nian88]

@omegaes when I try this library why the error to open the wa database

[omegaes]

@nian88 can you attach your logcat history ? wa database contains your whatsapp contacts

[nian88]

this my logcat history

[omegaes]

@nian88 Are you sure your device is rooted and grant your application root privileges and have Whatsaap application, not whatsapp plus or whatever ?!?

[nian88]

yes my device is rooted..I try on a different device but experiencing the same problem

this my project https://github.com/nian88/wanian

[JavierSolis]

I had the same problem, check your builder, and add this line

Shell.SU.run("chmod 777 /data/data/com.whatsapp/databases/wa.db"); And solved. I hope it helps you.

[omegaes]

@JavierSolis you are right, I will use

Shell.SU.run("chmod -R 777 /data/data/com.whatsapp"); this one will solve all issues

[JavierSolis]

@webserveis to check if the number has whastapp, you could add it to your contacts, after a moment and if there is internet, check the list of users

WhatsappApi.getInstance().getContacts(Context, GetContactsListener)

[nian88]

@JavierSolis @omegaes awesome.. thanks.. solved