It was an online application applied from India and i provided the following documents. I applied on 28 of December 2017 (almost a month and a week).
Canada :-
1) Passport first page, last page, Visa page
2) Study Permit
3) Offer Letter
4) Current Enrolment proof.
5) All official Transcript received till date
5) Saving account statement
6) Checking Account Statement. (GIC)
7) Current Address, email id and contact number.
08) Address Proof (Any bill or recent bank statement)
India:-
1) Passport first page and last page
2) Pan Card copy
3) Account Statement (Last 3 Months)
4) Marriage Certificate
5) Marriage Photographs
6) Proof of current relationship (chats, email etc)
7) Digital Photo
http://www.cic.gc.ca/english/information/applications/photospecs.asp
8) Family Information form
http://www.cic.gc.ca/english/pdf/kits/forms/IMM5645E.pdf
Note:
i had refusal as a visitor visa, later on i applied for GCMS notes, it took 3 months to get them and i'd gone through it and re apply SOWP. because as an international student the visitor visa application for spouse is not relevant, on top of that an international students have the rights to accompany their spouses so go for SOWP.
Good luck!!
.