Sendgrid-python: BadRequestsError: HTTP Error 400: Bad Request when using substitutions

[naiyoma]

am getting bad request after adding template_id

Steps to Reproduce

this is the code am using

sg_api = sendgrid.SendGridAPIClient(apikey=settings.SENDGRID_API_KEY)
substitutions = {}
to_emails = [{'email': to_email} for to_email in to_emails]
if subs:
    for substitution in subs:
        substitutions['%' + substitution + '%'] = subs[substitution]
data = {
    'personalizations': [
        {
            'to': to_emails,
            'subject': subject,
            'substitutions': substitutions
        },
    ],
    'from': from_email,

    'template_id':'[template_id]'
}   
if template is not None:
    template = data['template_id'] 
    response = sg_api.client.mail.send.post(request_body=data
return response

• Python Version: 3.6

[thinkingserious]

Hello @naiyoma,

When using templates, please follow this example.

Please let me know if that helps.

With Best Regards,

Elmer

[naiyoma]

@thinkingserious
i tried the example code but:
response = sg.send(message)
returns 'SendGridAPIClient' object has no attribute 'send'

I also tried this
response = sg_api.client.mail.send.post(request_body=message)

[thinkingserious]

Hello @naiyoma,

It looks like you may need to update your SendGrid client.

Please try: pip install sendgrid-python --upgrade to get v6.0.3. Then you should be able to use this example.

Thanks!

[naiyoma]

I upgraded sendgrid but i noticed that my class SendGridAPIClient lacks def send

[thinkingserious]

Hello @naiyoma,

What version do you see in sendgrid/VERSION.txt?

[naiyoma]

sendgrid==5.4.1
sendgrid-python=0.1.1

managed to upgrade using pip install --upgrade sendgrid

[thinkingserious]

Hello @naiyoma,

The version needed should be v6.0.3.

What happened when you ran the upgrade command?

With Best Regards,

Elmer

[naiyoma]

hey @thinkingserious the first command didn't upgrade but the second one worked

[thinkingserious]

Does the version sendgrid/VERSION.txt equal 6.0.3?

[naiyoma]

sendgrid==6.0.4
@thinkingserious is it not possible to send the templete_id using sendgrid version 5

[thinkingserious]

Can you please describe your development environment? (e.g. are you using virtuanenv, docker, hosting provider, etc...).

[naiyoma]

hey @thinkingserious i was able to get the specific error
which was {'errors': [{'message': 'Invalid type. Expected: string, given: array.', 'field': 'personalizations.0.subject', 'help': 'http://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/errors.html#message.personalizations.subject'}]}
I placed a comma after the subject therefore it was returning an array and not a string
issue resolved

[thinkingserious]

Awesome! Thank you for the follow up :)

[naiyoma]

also one shouldn't use substitutions with transactional templates

[fabriciols]

Im having the same issue... @naiyoma how did you get this detailed error response?

[naiyoma]

from urllib.error import HTTPError
from django.http import HttpResponse
import python_http_client


 try:
        response = sg_api.client.mail.send.post(request_body=data)
    except (HTTPError, python_http_client.exceptions.BadRequestsError) as error:
        return HttpResponse(error)

so with that you can use a print statement print(error.body) or pdb and still check for the error.body