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Monitor your Website and APIs from your computer.Get notified through Slack or E-mail when your server is down or response time is more than expected.
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QUESTION
I am trying to learn Golang via project based learning. The problem I have placed before myself to simulate customers adding products to their cart. Currently, I have the Cart.go
model as such..
ANSWER
Answered 2021-Jun-14 at 02:52Scan
places the value into the pointer to a variable you've given it (via &c
), and returns a database transaction object. You're calling that transaction object items
, which it isn't. The items (ie, the contents of your cart) are in c *Cart
, not in the thing returned by Scan
.
Your method modifies c
by filling it, it doesn't have to return anything, unless you want to return the error that Scan
may return.
Instead of this...
QUESTION
I am trying to do a simple golang with gin post and get request, every other thing works just fine, apart from the part that the values that are supposed to be in the struct variables are empty, the example is bellow if i didnt explain well my code(main)
...ANSWER
Answered 2021-Jun-03 at 07:54you need to capitalise the first character of values inside struct field.
For Example:
QUESTION
I am trying to validate the request body according to this struct using validator. But in Postman it always throws an error when validating the struct. I just want all values to be required when making a request.
...ANSWER
Answered 2021-Jun-03 at 04:45Moving Comment to answer
I see a problem in your code the link you have shared is https://github.com/go-playground/validator
but in the code, import is gopkg.in/validator.v2
If you are using the go-playground validator
Use below code to validate
QUESTION
I'm writing an application that allows a user to upload anonymized data to an S3 bucket in order to allow them to try out our product without providing us with authentication data.
This is the struct that handles ZIP archives, which have already proven to be correct:
...ANSWER
Answered 2021-Jun-02 at 08:26The issue here was a bit of a red herring. As @CeriseLimón pointed out, calling NewWriter
and Close
on an existing ZIP archive will necessarily result in an empty archive being added onto the end of the file. In my use case, the solution was to open the file and write it directly to the stream, rather than attempting to read it as a ZIP archive.
QUESTION
Problem: I have a struct which contains a map and two slices. When I pass the pointer value, no matter what I do, these collections within the struct are always nil (i.e. cannot append anything to the map or slices).
Details: I cannot figure out why this is happening. I made a seemingly unrelated change (which I can't remember) and now nothing will append to the Map in the struct. I am passing the Map pointer to subsequent functions, but it keeps throwing an error "panic: assignment to entry in nil map".
I pass the pointers for the LinkResource and the LinkReport type values, but it always says the map is nil. I even forcefully Zeroed the LinkReport struct values with make(...) as a debugging test, but when the value is passed to subsequent functions it still claims the Map and Slices are nil; how is this possible and how do I correct it?
LinkResource
...ANSWER
Answered 2021-May-23 at 01:46Here is a simple example of the error:
QUESTION
Hi I've been trying to mock a gin.Context but I have not been able to make it work I was trying what they did in this solution but it does not work with my router this is the error I have been getting
r.POST("/urls", urlRepo.CreateUrl)
cannot use urlRepo.CreateUrl (value of type func(c controllers.Icontext)) as gin.HandlerFunc value in argument to r.POSTcompilerIncompatibleAssign
This is the interface I created to later mock and the method in which I will be testing
...ANSWER
Answered 2021-May-12 at 19:04if you are using gin-gonic
as your http router, the param for your entry point should be a *gin.Context
.
So, for instance, you should be replacing this:
QUESTION
My model having following data:
...ANSWER
Answered 2021-Apr-30 at 13:57This is because your Subject
uses lowercase fields name
and section
and thus will not be serialized.
Changing it to:
QUESTION
I am trying to apply the ddd concepts to my go project
and then I have an entity with a nested struct like this:
...ANSWER
Answered 2021-Apr-26 at 00:21Uppercase the first letter of each field of the struct you want to be exportable to json.Marshal
:
QUESTION
I am getting the following error when trying to factory my controller:
cannot use &(personController literal) (value of type *personController) as PersonController value in return statement: wrong type for method CreateNewPerson (have func(ctx github.com/labstack/echo/v4.Context) error, want func(ctx github.com/labstack/echo/v4.Context))
controller:
...ANSWER
Answered 2021-Apr-24 at 17:30Your interface and struct implementation don't match. If you want your interface method's to match what's required by the echo framework then do this:
QUESTION
I am trying to fetch full table details using go language , but not getting
...ANSWER
Answered 2021-Apr-22 at 04:09I got the Answer
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