go-grpc-middleware | Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more
kandi X-RAY | go-grpc-middleware Summary
kandi X-RAY | go-grpc-middleware Summary
gRPC Go Middleware: interceptors, helpers, utilities.
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Trending Discussions on go-grpc-middleware
QUESTION
I made a custom network in Hyperledger fabric with TLS enabled, I can able to successfully create channels and join peers into channel.
But currently I am facing a problem:
- Problem in chaincode commands.
When I tried to execute the below command
- peer lifecycle chaincode queryinstalled
Error i got in the console: failed to endorse proposal: rpc error: code = Unavailable desc = transport is closing
And the peer0.org1.example.com container exited after this, logs shows below
...ANSWER
Answered 2021-Feb-17 at 16:26Like Yacov said, you are targeting a v2.x lifecycle command against a v1.4.x peer, therefore an error is expected. When I tried the same thing on latest v1.4.10 peer, I get the following error back:
QUESTION
I am looking for a way to rate-limit RPCs separately with high granularity, and to my dismay, there are not many options available for this issue. I am trying to replace a REST API with gRPC, and one of the most important features for me was the ability to add middleware for each route. Unfortunately, go-grpc-middleware only applies middleware to an entire server.
In my imagination, an ideal rate-limiting middleware for gRPC would use similar tricks as go-proto-validators, where the proto file would contain configurations for the ratelimiting itself.
...ANSWER
Answered 2020-Jul-16 at 18:46Figured I could post a snippet for reference of how this would look like in practice, using go-grpc-middleware WithUnaryServerChain and a unary interceptor.
The idea is to add a grpc.UnaryInterceptor to the server, which will be invoked with an instance of *grpc.UnaryServerInfo. This object exports the field FullMethod, which holds the qualified name of the RPC method being called.
In the interceptor you can then implement arbitrary code before actually calling the RPC handler, including RPC-specific rate limiting logic.
QUESTION
I am attempting to add some logging middleware to a grpc server, I am following the simple example on their github here.
https://github.com/grpc-ecosystem/go-grpc-middleware/blob/master/logging/logrus/examples_test.go
I set up my server options as so:
...ANSWER
Answered 2020-Apr-22 at 17:39Looking at the examples that this code is inspired from, could the problem be related to not having the "grpc_ctxtags" interceptor? See https://github.com/grpc-ecosystem/go-grpc-middleware/blob/06f64829ca1f521d41cd6235a7a204a6566fb0dc/logging/logrus/examples_test.go#L31
QUESTION
Hi~ I am playing with the first-network sample. But when I try to run the command ./byfn.sh up -l node, I always get the error returned from logs as below.
ANSWER
Answered 2020-Mar-27 at 10:02Here are a few hints:
Chaincode container startup has a default timeout of 300s. If chaincode instantiation takes longer than that (e.g. because you're on a very slow network), you'll get a timeout. You can try to extend that timeout by setting CORE_CHAINCODE_STARTUPTIMEOUT as env variable on your peer.
To see what is happening during chaincode instantiation, perform a docker ps: you'll see some temporary containers running (based on image fabric-ccenv). Check their logs using docker logs.
QUESTION
I’ve started with instrumenting my gRPC service using go-gRPC-middleware. I’ve got logs working using zap and metrics exposed for Prometheus.
Now that I’m trying to configure tracing using jaeger go client it requires me to add wrapper around metrics storage and logger. I’m not sure I understand why those wrappers are required
...ANSWER
Answered 2019-Dec-10 at 04:10Jaeger clients are designed to have a minimum set of dependencies. We don't know if your application is using Prometheus metrics or Zap logger. This is why jaeger-client-go (as well as many other Jaeger clients in other languages) provide two lightweight interfaces for a Logger and MetricsFactory that can be implemented for a specific logs/metrics backend that your application is using. Of course, the bindings for Prometheus and Zap are already implemented in the jaeger-lib and can be included optionally.
QUESTION
I am using github.com/grpc-ecosystem/go-grpc-middleware/util/metautils package for extracting the header, seeing Link to AuthFromMD implementation I am sure that I can override AuthFromMD and have my own Header name instead of authorization. But turns out to be var:=metautils.ExtractIncoming(ctx).Get(headerAuthorize) this method call is always expecting the headerAuthorize to be authorization. Or it is throwing error. My use case is to have different HeaderNames so I can resolve multiple Headers using this method. Can some one please help me
ANSWER
Answered 2018-Mar-02 at 03:32You are correct that AuthFromMD expects the header to be named authorization. This is in part because it mimics the HTTP header authorization which is always named the same.
I'm not sure that I understand your use case, but you can definitely reimplement AuthFromMD in your own package and modify it to take a header name.
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