Go: panic: runtime error: invalid memory address or nil pointer dereference
According to the docs for func (*Client) Do
:
"An error is returned if caused by client policy (such as CheckRedirect), or if there was an HTTP protocol error. A non-2xx response doesn't cause an error.
When err is nil, resp always contains a non-nil resp.Body."
Then looking at this code:
res, err := client.Do(req)
defer res.Body.Close()
if err != nil {
return nil, err
}
I'm guessing that err
is not nil
. You're accessing the .Close()
method on res.Body
before you check for the err
.
The defer
only defers the function call. The field and method are accessed immediately.
So instead, try checking the error immediately.
res, err := client.Do(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
The nil pointer dereference is in line 65 which is the defer in
res, err := client.Do(req)
defer res.Body.Close()
if err != nil {
return nil, err
}
If err!= nil then res==nil and res.Body panics. Handle err before defering the res.Body.Close().