74,099 questions
-1
votes
1
answer
49
views
Declare pointer to function whose signature is not known
I would like to declare a variable which is a pointer to a function with an unknown signature.
For example, to declare a variable which can contain a pointer to a function which can be set to log....
- 1,131
-3
votes
0
answers
19
views
about go amqp sdk ,Why is the newChannel method working correctly [duplicate]
when i read https://github.com/rabbitmq/amqp091-go source code
Why is the newChannel method working correctly?
In the recv function, the first parameter is a pointer to a Channel, and the second ...
- 1,636
2
votes
2
answers
76
views
Use reflect to make a new struct from unknown struct type
I have a function that expects to receive an array of pointers to structs of unknown definitions. I want to be able to create a new instance of the unknown struct, assign values to it, and then append ...
- 59
2
votes
0
answers
28
views
LauchDarkly flag value specific for test case
I'm trying to unit test a function that is partly controlled by a LaunchDarkly flag. My wish is for the flag to be set to true for every test case but one.
To achieve that I'm trying to set specific ...
- 1,338
2
votes
0
answers
43
views
How to generate multiple packages using sqlc and golang
I am working with sqlc in golang. Most of the work has been very good. But now my project is growing a little bit an I am struggling to have some level of organization
I am organizing my sqls in ...
- 316
0
votes
1
answer
43
views
Utilizing Sqlite `no such table` error in Go?
When working with the sqlite database in Go. During the testing I got the error: no such table: table_name.
Well I know where the error is coming from.
But I want to know if there is a way that I can ...
- 21
-2
votes
0
answers
38
views
Loops: Execute a specific task on the upcoming iteration, if a condition is met [closed]
Using a for loop, I want to check, if a certain condition is satisfied. Whenever this condition is satisfied, my program must execute a specific task. In addition, during the iteration proceeding the ...
- 10
1
vote
3
answers
68
views
PDF Signature Appearance is not Visible
I'm implementing visible digital signatures in PDF documents using incremental updates. I'm generating the signature using a PKCS#7 detached signature and adding a widget annotation to represent the ...
- 23
-3
votes
1
answer
85
views
cpprest http client send request before server is up
I have a server program written in Golang that listens on 127.0.0.1:5555, and another program in C++ that uses cpprest to create a client and send a POST request to 127.0.0.1:5555 upon execution.
When ...
-1
votes
0
answers
52
views
Is this an efficient way to "rotate" the bits in a bitmask? [closed]
I'm doing some coding challenges for myself, and one of them is efficiently handling and processing the shapes and rotations of Tetris pieces. I decided that storing the initial piece configuration ...
- 8,249
1
vote
0
answers
13
views
Failing to get to run CircleCI with github
I am reading Securing DevOps By Julien Vehent and I am stuck in Chapter 2 Building a barebones DevOps pipeline. I forked and cloned the book's repository % git clone https://github.com/mictadlo/...
- 565
-1
votes
0
answers
61
views
How to properly define GoLang struct for nested arrays [closed]
Here is how my mongoDb document looks like:
{
"_id": 111,
"updateDate": "2000-10-01T04:00:00Z",
"updateLogs": [
[
{
"updatedBy"...
- 1,589
-4
votes
0
answers
31
views
Under what conditions does #Golang's standard library in math/rand/v2 provide a CS(P)RNG or "True RNG Source" that complies with NIST SP 800-90B? [closed]
Ignoring the Dual_EC_DRBG scandal, assume we want to be compliant with NIST SP 800-90; here is some background on the standards:
Random Number Generation: https://en.wikipedia.org/wiki/NIST_SP_800-...
- 320
1
vote
0
answers
33
views
Why is running a query with boolean 'group by' not working with gorp's SelectRow, but it's working when I run it directly in a database shell?
Here's the sql fiddle. This is just an example I made up, the real query is not about sales and products, but the structure of the query more or less is the same (but more complicated).
The query ...
- 11
-4
votes
0
answers
40
views
retrieve username in a service in Mac [closed]
I am trying to retrieve username in max service but I am getting only root as a username in service. How can I get the current users username in Mac.
I tried using 'whoami' command and
currentUser, ...
- 57
0
votes
1
answer
35
views
When using rows.Values() in Go's pgx, How can I know if the value was NULL without resorting to use rows.Scan()?
I want to iterate over the values in a row with rows.Values() and that works but there is no clear way how can I check if each value has NULL (valid/invalid):
rows, err := conn.Query(context....
- 24.4k
-2
votes
0
answers
11
views
Is the truncation of sarama producer messages caused by concurrency? [closed]
kafka 3.6.1
sarama 1.34.1
go 1.20
The messages recorded by Kafka are occasionally truncated, and occasionally two messages are truncated and merged together, which looks like concurrency. At present, ...
0
votes
0
answers
13
views
jwt.Parse Crashes Under Load in Custom Tyk Plugin
I am using the jwt.Parse function to validate tokens in a custom Tyk plugin. Under high load, the code frequently crashes, causing the gateway to fail. This issue occurs when multiple requests are ...
- 992
1
vote
0
answers
21
views
Using GORM models in frontend of Wails app
I'm building a desktop app with Wails which writes to a local SQLite database.
I have the following model in my Go backend:
type FilmGroup struct {
gorm.Model
Films []FilmRoll
...
- 2,087
2
votes
1
answer
34
views
How to select in($1) using sqlc and golang?
I have been working in SQLC and Go, I am struggling to find items using in or any
my db used ids as Bigserial type, which is being translated as int64 in my table types as you can see in my ...
- 316
1
vote
1
answer
48
views
Add filter to aggregation function in go redis
I'm trying to use go-redis to calculate the sum of the field duration across entries in a redis database. I'm able to sum the entries if I use all the entries, but I want to filter out entries that ...
- 765
3
votes
1
answer
63
views
ERROR: invalid input syntax for type json (SQLSTATE 22P02)
type ComputeConfig struct {
DbId
DbOwnerAudit
DbTimeAudit
Name *string `gorm:"column:name" json:"name"`
Type ComputeType `gorm:"column:type&...
-1
votes
2
answers
92
views
Is map assignment thread-safe in Go? [duplicate]
I already know that the map operation is not thread-safe. For example if there are several go routine to read and update one same map(as @rustyx refered, just as s := cache["foo"] and cache[&...
- 780
1
vote
1
answer
36
views
Using a similar model to map with gorm, but gorm preload is wrong
First, I have the Post model, which has been migrated to database
type Post struct {
ID uuid.UUID `gorm:"type:uuid;default:uuid_generate_v4();primary_key"`
...
- 11
0
votes
0
answers
29
views
How to deploy llm model with golang(onnxruntime_go)?
I'm trying to deploy in production a LLM model with onnxruntime_go(https://github.com/yalue/onnxruntime_go).
The problem is that I can not get the correctly answer, since I have loaded a tokenizer and ...
- 1,435
1
vote
2
answers
29
views
How do I get the current postgres sql or sqlx schema search path?
I am do ing a search on a post gres table and getting no records returned. The matching records are in the table I am searching. There is another table in aother schema where the data is not in any ...
-1
votes
1
answer
53
views
Replicating /etc/profile.d under ~/.profile.d by copying the code from /etc/profile and changing the path [closed]
I'm trying to replicate the functionality of /etc/profile.d by copying the segment of /etc/profile that runs the scripts in profile.d in my ~/.profile, and have it run scripts under ~/.profile.d.
Here'...
- 57
0
votes
1
answer
34
views
Code written in golang, output as a C dynamic library, is called by posgres17, but Golang-generated dynamic library functions is blocked
everyone:
I wrote a demo, but it doesn't work properly, can you help me, thank you very much.
Code written in golang, output as C dynamic library "libtest1.so", is called by the "...
- 9
-3
votes
0
answers
55
views
Why don't simultaneous read/writes to a primitive int pointer panic? [closed]
In trying to intentionally create examples of concurrent RW panics in Go, I was surprised to find it difficult to cause a RW panic on a simple int primitive pointer. For example, the following code ...
- 3,658
-1
votes
0
answers
35
views
disable new line at EOF in GO extension in vscode
i have a problem that when i'm editing a big .go file and saving it then formatter is automatically adding a new line at the end of file, which is for some reason causes my cursor to move to somewhere ...
- 43
0
votes
2
answers
46
views
Go Fyne Window Crashes with too many logs
I am coding in Go and using Fyne to display a window. I have tasks that log info to this window. When I make the tasks log strings to the window at high volume the window is no longer readable and ...
- 90
1
vote
0
answers
29
views
Managing react-oauth google login and connecting it to backend golang with gin and goth
I'm trying to implement google login in my react frontend using react-oauth and go as backend with gin and goth
this it the rendered GoogleLogin in the frontend
<GoogleLogin
onSuccess={...
- 41
1
vote
0
answers
34
views
Gorm is not using the query I provide. Proper way to query. with GORM
This query:
db.Where(&ArchivedImage{DocID: docId}).First(&image) //"doc_id = ?", docId).Find(&image)
Which is looking for an archived image and nothing was returned other than a ...
0
votes
0
answers
31
views
Gorm/PostgreSQL: How to Ensure Connection to Specific Database Instead of Default (solved)
When connecting to PostgreSQL using Gorm in Go, my application is connecting to the default postgres database instead of the specific database I've configured.
func (app *Application) ...
- 9
1
vote
0
answers
63
views
Saving TLS connections after an exec in Go [closed]
I am writing a server that uses long TCP connections (a mixture of plain TCP connections and TLS ones). Occasionally I would need to update the server software, so I replace the program's executable ...
- 97
-1
votes
0
answers
49
views
Is it okay to use a single global http client for multiple requests? [duplicate]
I am working on a microservice that reads messages from a messaging queue and makes some http calls based on the information from the message. Specifically it gets proxyServerId and clientId from the ...
- 31
0
votes
0
answers
31
views
How to make sveltekit SPA app manage routes with golang backend when entering urls in browser
With having backend built in golang, frontend built in sveltekit as an SPA, how to make sveltekit frontend manage routes make in sveltekit, while having golang handle routes for api?
For example: i ...
- 587
1
vote
1
answer
45
views
Chaining routes using NewServeMux
I'm using Go's standard library and trying to register multiple HTTP handlers with http.NewServeMux. However, I've encountered an issue where only the route /reservation/cancel is registered, while ...
- 387
1
vote
0
answers
55
views
go-coap get current status
I would like to connect to my air purifier (Philips AC3033) via COAP to get current statistics/status.
The following go code:
package main
import (
"context"
"log"
&...
- 519
1
vote
0
answers
83
views
How to implement dependent dropdown lists in Excel using the excelize Go package?
I'm trying to create an Excel file with dependent dropdown lists using the excelize Go package. I have a file with three sheets: FruitData, VarietyData, and ColorData. On the main sheet (Main), I want ...
- 63
2
votes
1
answer
44
views
Go: Assignment of type aliases for generics [duplicate]
I have type that receives generic
After it, i create type alias with filled generic type
When i try to assign variable typed with type alias to the same type i receive following error:
cannot use y (...
- 31
0
votes
2
answers
26
views
Docker multiplatform image [duplicate]
So I'm stuck with this problem.
I have - macos arm laptop where I need to build images -
Dockerfile:
FROM --platform=${BUILDPLATFORM} golang:1.22 AS builder
WORKDIR /workspace
# args
ARG ...
- 325
1
vote
1
answer
27
views
How to convert double to a time.Time value with the mongo Golang driver?
I've got a database with some legacy data where some of the documents store the field "createdDate" as a normal bson date, but others store the field as an epoch millisecond timestamp with ...
- 1,628
1
vote
1
answer
43
views
How can I set Go's log/slog to send to multiple outputs (console, file) and in different formats (TextHandler, JSONHandler)?
When I create a slog instance I need to pass a single slog.Handler to that means that a logger can only write to a single Handler and the handlers that come with slog seem to write to a single output ...
- 24.4k
1
vote
1
answer
23
views
Is the CheckSignature method of x509.Certificate safe to be called from multiple go routines?
I am trying to understand if the CheckSignature function from crypto/x509 is safe to be called from multiple go routines at the same time? I tried to look for any comments but couldn't find anything.
...
- 249
2
votes
0
answers
31
views
Using the Go Aurora SDK seems to occasionally connect to read only instance
I'm using GO (in a lambda) to connect to a serverless Aurora DB. I have a read and write instance. When creating the client I do the following:
region := "eu-west-2"
config, err := config....
- 374
-3
votes
0
answers
34
views
How to marshal/unmarshal struct with agnostic type (interface) in Go? [duplicate]
I have some struct Settings which has an agnostic field Attrs which is a interface.
I have no problem marshaling this with goccy/go-yaml, but I am unsure what the mechanics are to correctly do that?.
...
- 9,404
0
votes
0
answers
27
views
clarification on redis-sentinel read & write
I am trying to write a golang application and its read intensive so I am using redis for caching.
I am planning to use redis sentinel and thinking of making write(to redis) through master and read (...
2
votes
2
answers
39
views
Right valkey-go alternative for the redis-go Scan-with-iterator
With go-redis I am using iterator to scan a large number of keys like below
scanIterr := client.Scan(0, "*", 1000).Iterator()
for scanIterr.Next() {
key := scanIterr.Val()
fmt.Printf(...
- 165
1
vote
2
answers
51
views
Type mismatch in Go generics with mixed untyped arguments
func sum[T int | float64](a, b T) T {
fmt.Println("Type of a: ", reflect.TypeOf(a))
fmt.Println("Type of b: ", reflect.TypeOf(b))
return a + b
}
type Pair[K, V any] ...
- 21