go-grpc-certificate/README.md

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# go-grpc-certificate
## Problem's context
I've got some trouble while I want to use gRPC through TLS certificates. I've created a certificated from a .pem key file which had
a password and I couldn't use it through `go` standard library. I found a solution based on this **[SO answer](https://stackoverflow.com/a/56131169/6329540)** to this **[question](https://stackoverflow.com/questions/56129533/tls-with-certificate-private-key-and-pass-phrase/56131169#comment132834574_56131169)**
## Solution
I've decided to use **[openssl](https://www.openssl.org/docs/manmaster/man1/)** to achieve this task as far as I was not able to found a solution in go standard library.
## Installation requirements
I've used this version on development. So we should check if it backwards compatible.
```shell
$ openssl version
OpenSSL 3.0.8 7 Feb 2023 (Library: OpenSSL 3.0.8 7 Feb 2023)
```
## How to use
In your `go` project you just have to type in your terminal:
```shell
$ go get gitea.urkob.com/urko/go-grpc-certificate
```
Then place in your code like this
```go
package main
// here should be defined your imports
certcreds "gitea.urkob.com/urko/go-grpc-certificate/pkg/credentials"
func main() {
certPath := "place your certificate path"
certKeyPath := "place your key file path"
keyPassword := "place your key password here"
creds, err = certcreds.CredentialsFromKeyWithPasswd(
certPah, certKeyPath, keyPassword,
)
if err != nil {
log.Fatalf("Failed loading certificates: %v\n", err)
}
}
```