web2py rest api endpoint gives invalid path output -

i have made web2py web application. api endpoints exposed follows.

"/comments[comments]"  "/comments/id/{comments.id}"  "/comments/id/{comments.id}/:field"  "/comments/user-id/{comments.user_id}"  "/comments/user-id/{comments.user_id}/:field"  "/comments/date-commented/{comments.date_commented.year}"  "/comments/date-commented/{comments.date_commented.year}/:field"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/:field"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}/:field"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}/{comments.date_commented.hour}"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}/{comments.date_commented.hour}/:field"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}/{comments.date_commented.hour}/{comments.date_commented.minute}"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}/{comments.date_commented.hour}/{comments.date_commented.minute}/:field"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}/{comments.date_commented.hour}/{comments.date_commented.minute}/{comments.date_commented.second}"  "/comments/date-commented/{comments.date_commented.year}/{comments.date_commented.month}/{comments.date_commented.day}/{comments.date_commented.hour}/{comments.date_commented.minute}/{comments.date_commented.second}/:field"  "/comments/complaint-id/{comments.complaint_id}"  "/comments/complaint-id/{comments.complaint_id}/:field" 

the comments model follows models/db.py

db.define_table(     'comments',     field('user_id', db.auth_user),     field('comment_made', 'string', length=2048),     field('date_commented', 'datetime', default=datetime.now),     field('complaint_id', db.complaints),     field('detailed_status', 'string', length=2048), ) 

i have been successful in retriving single comment via following request

localhost:8000/api/comments/id/1.json 

now wish retrieve comments. not able figure out how use /comments[comments] retrieve comments.? have tried

localhost:8000/api/comments.json 

but gives output "invalid path"

i have realized requests such http://localhost:8000/api/comments/complaint-id/1.json give "invalid path" output. please help.

edit: controllers/default.py

@request.restful() def api():     response.view='generic.' + request.extension     def get(*args,**kargs):         patterns='auto'         parser = db.parse_as_rest(patterns,args,kargs)         if parser.status == 200:             return dict(content=parser.response)         else:             raise http(parser.status,parser.error)     def post(*args,**kargs):         return dict()     return locals() 

routes.py in main web2py folder change default application:

routers = dict(      base = dict(          default_application='grs',      )  ) 

another observation:

i added endpoint below:

def comm():     """" comments api substitute"""     rows=db().select(db.comments.all)       ## line shows error     # rows = db(db.comments.id > 0).select()     #rows=[[5,6],[3,4],[1,2]]     #for row in rows:     #    print row.id     return dict(message=rows) 

even not able retrieve comments "/comm.json". gives web2py error ticket says "need more 1 value unpack" on line "rows=db.select(db.comments.all)". above invalid path , error related in someway?