grpc-web
evans
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grpc-web | evans | |
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33 | 11 | |
8,301 | 4,115 | |
1.2% | - | |
6.5 | 4.8 | |
8 days ago | 4 months ago | |
JavaScript | Go | |
Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
grpc-web
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Ask HN: WebSocket server transforming channel subscriptions to gRPC streams
* Additionally, client can stream data to the backend server (if bidirectional GRPC streams are used). I.e. client sends WebSocket messages, those will be transformed to GRPC messages by WebSocket server and delivered to the application backend.
As a result we have a system which allows to quickly create individual streams by using strict GRPC contract but terminating connections over WebSocket transport. So it works well in web browsers. After that no need to write WebSocket protocol, client implementation, handle WebSocket connection. This all will be solved by a suggested WebSocket server and its client SDKs.
The mechanics is similar to Websocketd (https://github.com/joewalnes/websocketd), but instead of creating OS processes we create GRPC streams. The difference from grpc-web (https://github.com/grpc/grpc-web) is that we provide streaming capabilities but not exposing GRPC contract to the client - just allowing to stream any data as payload (both binary and text) with some wrappers from our client SDKs side for managing subscriptions. I.e. it's not native GRPC streams on the client side - we expose just Connection/Subscription object to stream in both directions. GRPC streams used only for communication between WebSocket server and backend. To mention - grpc-web does not support all kinds of streaming now (https://github.com/grpc/grpc-web#streaming-support) while proposed solution can. This all should provide a cross-platform way to quickly write streaming apps due to client SDKs and language-agnostic nature of GRPC.
I personally see both pros and cons in this scheme (without concentrating on both too much here to keep the question short). I spent some time thinking about this myself, already have some working prototypes – but turned out need more opinions before moving forward with the idea and releasing this, kinda lost in doubts.
My main question - whether this seems interesting for someone here? Do you find this useful and see practical value?
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Build and Deploy a gRPC-Web App Using Rust Tonic and React
By default, web browsers do not support gRPC, but we will use gRPC-web to make it possible.
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Lemmy v0.18.0 Release - A reddit alternative written in Rust.
You just have to use a library implementation for JavaScript https://github.com/grpc/grpc-web
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Full Stack Forays with Go and gRPC
TypeScript support remains an experimental feature of gRPC.
- Seeking Opinion: Choosing Between Gateway and Envoy Proxy for Our Microservices Architecture
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Introducing Tempo: low latency, cross-platform, end-to-end typesafe APIs
The gRPC-Web protocol supports HTTP/1 and can be used from a browser.
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gRPC on the client side
-- grpc-web
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Introduction to gRPC
gRPC is mainly used in server-to-server communication, but it can also be used in client-to-server communication. gRPC-web is a gRPC implementation for web browsers. It is a JavaScript library that allows you to call gRPC services from a web browser. It supports Unary and Streaming Server API calls.
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gRPC vs REST: Comparing API Styles in Practice
Since we're using Envoy, there's one more neat trick that we can employ. It turns out that Envoy also support gRPC-Web out of the box, a JavaScript client designed to support gRPC communication from the browser! That means that we can send gRPC messages over HTTP/1.1 as base64 encoded strings or as binary protobufs. Messages will be sent through our proxy and on to our backend service. The advantage of this is smaller and more efficient wire communication which should lead to better performance.
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Understanding gRPC Concepts, Use Cases & Best Practices
protoc-gen-grpc-web — a plugin that allows our front end to communicate with the backend using gRPC calls. A separate blog post on this coming up in the future.
evans
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Understanding gRPC Concepts, Use Cases & Best Practices
Note: gRPC services can also be tested from CLI using tools like evans-cli. But for that reflection needs (if not enabled the path to the proto file is required) to be enabled in gRPC servers. This compare link shows the way to enable reflection and how to enter into evans-cli repl mode. Post entering repl mode of evans-cli, gRPC services can be tested from CLI itself and the process is described in evans-cli GitHub page.
- Evans: More expressive universal gRPC client
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Smart way to create gRPC CLI
Do you mean this one https://github.com/ktr0731/evans ?
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grpcurl-like tool for grpcweb
I use Evans, it supports gRPC and gRPC-web and also supports reflection protocol.
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Go and gRPC is just so intuitive. Here's a detailed full-stack flow with gRPC-Web, Go and React. Also, there is a medium story focused on explaining how such a setup might boost efficiency and the step-by-step implementation.
https://github.com/ktr0731/evans it's the best cli tool I've ever used
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Postman-powered testing of Akka Serverless gRPC APIs
Over the holidays, 2021, Postman gifted a fine upgrade to its users: beta support for the gRPC protocol in its API platform. As a Product Manager for Lightbend and helping out on its new gRPC native PaaS for building and running APIs and microservices, I was excited, to say the least. In another, recent blog post, I mentioned my desire to leverage UI test-and-try tools for APIs (my time in the REST API world of Mashery and PubNub was the source of such desire). In that same post though, I noted the lack of several important gRPC features, like server reflection and more robust import capabilities, as blockers; hence, my deep dive, in that post, into the CLI tool, Evans.
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gRPC test-and-try with Akka Serverless and Evans
And who am I kidding? I'm a CLI-type person. Which is why I was super excited to stumble about Evans. Within minutes, I had gone from installation to trying out TLS-secured APIs and microservices running in the cloud on Lightbend's new serverless offering.
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Set Up Grpc Web Server With AWS
If everything is set up correctly, you should now be able to use evans to access your web server at the load balancer url or even the url for your ec2 instance directly e.g.
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Setting Up a gRPC Protobuf Server With Tonic
After running the server with cargo run, I needed a way to test that the server works. I had heard of an interesting tool called evans, so I decided to use this. It took me a while to figure out the right parameters to query the server, especially because tonic doesn't seem to support gRPC reflection right now, and there are few examples out there.
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Go, RabbitMQ and gRPC Clean Architecture microservice 💫👋
For testing gRPC we can use evans and need add reflection:
What are some alternatives?
ngx-grpc - Angular gRPC framework
grpcui - An interactive web UI for gRPC, along the lines of postman
grpc-over-webrtc - gRPC over WebRTC
bloomrpc - Former GUI client for gRPC services. No longer maintained.
grpcurl - Like cURL, but for gRPC: Command-line tool for interacting with gRPC servers
buf - The best way of working with Protocol Buffers.
Go-gRPC-RabbitMQ-microservice - Go gRPC RabbitMQ email microservice
webrpc - webrpc is a schema-driven approach to writing backend services for modern Web apps and networks
tonic - A native gRPC client & server implementation with async/await support.
ts-proto - An idiomatic protobuf generator for TypeScript