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a cli repl client for pitaya, great for testing servers during development

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pitaya-cli

Repo Deprecation Notice

As a part of the initiative to centralize pitaya related code in a single repo, Pitaya CLI is now maintained at the Pitaya main repo.

===========

A REPL cli client made in go for pitaya.

Installing

go install github.com/topfreegames/pitaya-cli/v2

Usage

For cli flags, run pitaya-cli --help

$ pitaya-cli

Pitaya REPL Client
>>> help

Commands:
  clear             clear the screen
  connect           connects to pitaya
  disconnect        disconnects from pitaya server
  exit              exit the program
  help              display help
  notify            makes a notify to pitaya server
  push              insert information of push return
  request           makes a request to pitaya server
  sethandshake      sets a handshake parameter

Protobuf

For connecting to a server that uses protobuf as serializer the server must implement two routes:

  • Docs: responsible for returning all handlers and the protos used on input and output;
  • Descriptors: The list of protos descriptions, this will be used by the CLI to encode/decode the messages.

To implement those routes you can use some functions provided by pitaya, here is a short example of both routes:

import (
	// ...

	"github.com/topfreegames/pitaya"
	"github.com/topfreegames/pitaya/protos"
)

// Docs handler
func (c *MyHandler) Docs(ctx context.Context) (*protos.Doc, error) {
	d, err := pitaya.Documentation(true)
	if err != nil {
		return nil, fmt.Errorf("failed to generate documentation for pitaya routes: %w", err)
	}

	doc, err := json.Marshal(d)
	if err != nil {
		return nil, fmt.Errorf("failed to encode documentation JSON: %w", err)
	}

	return &protos.Doc{Doc: string(doc)}, nil
}

// Descriptors route
func (c *MyHandler) Descriptors(ctx context.Context, names *protos.ProtoNames) (*protos.ProtoDescriptors, error) {
	descriptors := make([][]byte, len(names.Name))

	for i, protoName := range names.Name {
		desc, err := pitaya.Descriptor(protoName)
		if err != nil {
			return nil, fmt.Errorf("failed to get descriptor for '%s': %w", protoName, err)
		}

		descriptors[i] = desc
	}

	return &protos.ProtoDescriptors{Desc: descriptors}, nil
}

When initilizing the CLI, you have to provide the docs route as the following:

pitaya-cli -docs connector.docsHandler.docs

NOTE: The descriptors handler is automatically discovered by the client. It must only follow the signature mentioned earlier.

A full example of running pitaya-cli with protobuf:

pitaya-cli -docs connector.docsHandler.docs
>>> push connector.playerHandler.matchfound protos.FindMatchPush
>>> connect localhost:30124
>>> request connector.playerHandler.create
>>> request connector.playerHandler.findmatch {"RoomType":"xxxx"}

Set handshake parameters

You can edit handshake parameters before connecting to the server.

You may pass the full handshake json:

Pitaya REPL Client
>>> sethandshake {"sys":{"clientVersion":"1.0.6", "clientBuildNumber":"999","platform":"ios"}}

Or edit one of three specific parameters:

Pitaya REPL Client
>>> sethandshake platform ios
>>> sethandshake buildNumber 999
>>> sethandshake version 1.0.6

Read commands from file

It's possible to add a list of sequential requests into a file and pitaya-cli will execute them in order.

For example: commands.txt

connect localhost:3250
request connector.playerHandler.create
request connector.playerHandler.findmatch {"RoomType":"xxxx"}

Then run: pitaya-cli --filename commands.txt