Converto type interface to int

[araneta]

I want to get integer value: var id = c.UserValue("id") but i got this error : cannot convert c.UserValue("id") (type interface {}) to type int: need type assertion
what should I do? Thanks

[araneta]

i can compile the code but i got this error:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x476ce2]

goroutine 22 [running]:
panic(0x6e0ee0, 0xc4200120f0)
    /home/aldo/projects/go/go/src/runtime/panic.go:500 +0x1a1
github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp.(*RequestCtx).SetUserValue(0x0, 0x7399b2, 0x2, 0x6caa60, 0xc42012eba0)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp/server.go:461 +0x22
github.com/heroku/go-getting-started/vendor/github.com/buaazp/fasthttprouter.(*node).getValue(0xc42007ed70, 0xc42012eb9a, 0x1, 0x0, 0xc4201187e0, 0xc420098d00)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/buaazp/fasthttprouter/tree.go:364 +0x1c7
github.com/heroku/go-getting-started/vendor/github.com/buaazp/fasthttprouter.(*Router).allowed(0xc420069b00, 0xc42012eb90, 0xb, 0xc420038c50, 0x7, 0x7, 0x50)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/buaazp/fasthttprouter/router.go:273 +0x13d
github.com/heroku/go-getting-started/vendor/github.com/buaazp/fasthttprouter.(*Router).Handler(0xc420069b00, 0xc42013e000)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/buaazp/fasthttprouter/router.go:345 +0x509
github.com/heroku/go-getting-started/vendor/github.com/buaazp/fasthttprouter.(*Router).Handler-fm(0xc42013e000)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/main.go:64 +0x34
main.(*CORS).handler.func1(0xc42013e000)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/main.go:43 +0x137
github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp.(*Server).serveConn(0xc42009ab40, 0x897c40, 0xc42007a0a0, 0x1, 0x101)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp/server.go:1533 +0x573
github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp.(*Server).(github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp.serveConn)-fm(0x897c40, 0xc42007a0a0, 0xc420027f58, 0x1)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp/server.go:1250 +0x3e
github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp.(*workerPool).workerFunc(0xc420094480, 0xc420132240)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp/workerpool.go:210 +0xde
github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp.(*workerPool).getCh.func1(0xc420094480, 0xc420132240, 0x6bd020, 0xc420132240)
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp/workerpool.go:182 +0x35
created by github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp.(*workerPool).getCh
    /home/aldo/projects/go/go-simpeg-workspace/src/github.com/heroku/go-getting-started/vendor/github.com/valyala/fasthttp/workerpool.go:184 +0x111

for this router router.DELETE("/religion/:relid", routes.DeleteReligion)

[palestamp]

+1 Same issue.

[buaazp]

Strange panic, I need more logs to find the reason, can you add one log line in fasthttprouter/tree.go at line 366 like this:

log.Printf("n.path: %d path: %d", len(n.path), len(path))
ctx.SetUserValue(n.path[1:], path[:end])

And catch the next panic log for me.

[palestamp]

Hi! This situation can be reproduced if you will send request with wrong method:

 router.PUT("/ua/v1/views/:action_type/:account_id/:post_id", self.putViewPoint)
 router.GET("/ua/v1/views", self.getViewPoints)

This will cause a panic:

 curl -XGET 'http://127.0.0.1/ua/v1/views/view/1233/234'

So the problem is in call to node.getValue with nil RequestCtx from Router.allowed method

[buaazp]

@palestamp Great job!