在Laravel中使用grpc，找不到“Class'Grpc \ ChannelCredentials'。”

Question

I am trying to use grpc in a Laravel project.

This is a part of my composer.json file:

"require": {
    ...
    "datto/protobuf-php": "dev-master",
    "google/auth": "^0.7.0",
    "grpc/grpc": "dev-release-0_13",
    ...
}

I have generated a php file from my proto file. It is placed in app/services/ and included in the composer.json autoload.files section. I have run composer install without issues.

I have created a route for testing. It has the following code:

$client = new vat_service\VatServiceClient('localhost:50051', [
    'credentials' => Grpc\ChannelCredentials::createInsecure()
]);

But I receive the response Class 'Grpc\ChannelCredentials' not found. when I visit the route.

The Laravel app is running in a Homestead vagrant box.

I don't know how to proceed. Am I missing a dependency? Did I miss to install something?

Answer 1

I have solved the problem, but I am not sure which of the below steps was the solution.

Things I tried:

• I installed grpc-beta in the Homestead box (sudo pecl install grpc-beta).
• I updated from "grpc/grpc": "dev-release-0_13" to "grpc/grpc": "^0.15.0".

• I added a repository to composer.json:

  "repositories": [
      {
          "type": "vcs",
          "url": "https://github.com/stanley-cheung/Protobuf-PHP"
      }
  ],
  

• I restarted NGINX inside the Homestead box
• I updated composer with composer self-update

I added this as an answer. Please advise if it would be better suited as an edit to the opening question or as a comment.

Also, it would be interesting to learn what the solution was.