Android Question send email using gmail

Zeev Goldstein

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hi

just found this old post by Erel with a sample project to send email using gmail

[B4X] Sending emails with Gmail REST API

This solution is compatible with B4A, B4J and B4i. Up until now there were two ways to send emails: 1. Using the default mobile app which required the user to actually send the message (available in B4A and B4i). 2. Using SMTP from the Net library. This required the user to enter the email...
www.b4x.com

i tried to get the api key but i keep getting errors when the sub send starts on
oauth2.GetAccessToken

the error is from google and the auth screen says client not found

i did create an api key in google console

maybe i'm missing something...

i just took the sample and replace clientid with my api key

any one can help?
 
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DonManfred

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See this Tutorial

[class][B4X] Google OAuth2

GoogleOAuth2 class is compatible with B4A, B4i and B4J (new). It is no longer possible to use WebView to implement Google's OAuth2 authentication. The solution is to open the default browser and set the redirection uri in such a way that the browser will redirect the response back to our app...
www.b4x.com
 
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Zeev Goldstein

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thanks,
got one tiny step ahead
DonManfred said:
I strongly suggest to use the forumsearch FIRST. And then ask if you do not find a solution.
Seems that you do not use it at all. It is annoying that we always need to do it for you.
Click to expand...
i do - all the time - that's how i got this old post
i had a few misunderstandings with what to do
now i got one tiny step ahead as the key is there
now i get another error as the access is not legal
do i have to upload the app to play store first?
it's a testing and learning app so not needed for me to upload
 
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Zeev Goldstein

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one of the issues i have is that the post and explanations are meant for those who are familiar with the api i think
there are options for scopes, test users etc but the explanation in the post doesn't go beyond a photo of the screen after it is all done
this is why i'm lost
is there any one that can explain all required steps so i can make this simple sample work?
it is all about creating the client id and around it iin the console
 
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J

John Naylor

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This will let you send via GMail's SMTP system.

The "your-app-specific-password" needs to be created. Go into your Gmail account, Security, search for App Passwords and create one (you just give it a name, google will generate a password for you)


B4X: 
Sub Process_Globals
    Dim SMTP As SMTP
End Sub

Sub Globals
    Dim btnSendEmail As Button
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("Layout") ' Assuming you have a button called btnSendEmail in your layout

    ' Initialize the SMTP object
    SMTP.Initialize("smtp.gmail.com", 587, "your-email@gmail.com", "your-app-specific-password", "SMTP")
    SMTP.StartTLSMode = True ' Enable TLS encryption
    SMTP.UseSSL = True ' Enable SSL encryption
    SMTP.AuthMethod = SMTP.AUTH_LOGIN

End Sub

Sub btnSendEmail_Click
    ' Set the details of the email
    SMTP.To.Add("recipient@example.com") ' Recipient's email address
    SMTP.Subject = "Test Email from B4A"
    SMTP.Body = "This is a test email sent from B4A using Gmail's SMTP server."
    SMTP.MailFrom = "your-email@gmail.com"
    SMTP.AddAttachment(File.DirRootExternal, "testfile.txt") ' Add an attachment (optional)
 
    ' Send the email
    SMTP.Send
End Sub

Sub SMTP_MessageSent(Success As Boolean)
    If Success Then
        ToastMessageShow("Email sent successfully!", False)
    Else
        ToastMessageShow("Error sending email: " & LastException.Message, True)
    End If
End Sub
 
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Zeev Goldstein

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Longtime User
ok
here's what i did
  1. in google console i created the oauth2 clientid - goti it
  2. in scopes i marked all gmail options
  3. had to enter test users - added myself
  4. changed in Erel's sample the client id only to mine
  5. did not upload the app to play store - i want to run it in debug locally to test it first
  6. running the app and i get error 400 access denied - invalid request - custom uri scheme is not enabled for your android client
    flowname=generalOAuthFlow
and i'm lost again - what am i missing??
 
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