by gojek

gojek /weaver

An Advanced HTTP Reverse Proxy with Dynamic Sharding Strategies

467 Stars 35 Forks Last release: over 1 year ago (v0.0.1) Apache License 2.0 66 Commits 1 Releases

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Weaver - A modern HTTP Proxy with Advanced features

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Weaver is a Layer-7 Load Balancer with Dynamic Sharding Strategies. It is a modern HTTP reverse proxy with advanced features.


  • Sharding request based on headers/path/body fields
  • Emits Metrics on requests per route per backend
  • Dynamic configuring of different routes (No restarts!)
  • Is Fast
  • Supports multiple algorithms for sharding requests (consistent hashing, modulo, s2 etc)
  • Packaged as a single self contained binary
  • Logs on failures (Observability)


Build from source

  • Clone the repo:

    git clone [email protected]:gojektech/weaver.git
  • Build to create weaver binary

    make build

Binaries for various architectures

Download the binary for a release from: here


Weaver uses

as a control plane to match the incoming requests against a particular route config and shard the traffic to different backends based on some sharding strategy.

Weaver can be configured for different routes matching different paths with various sharding strategies through a simple route config named ACL.

The various sharding strategies supported by weaver are:

  • Consistent hashing (hashring)
  • Simple lookup based
  • Modulo
  • Prefix lookup
  • S2 based

Deploying to Kubernetes

Currently we support deploying to kubernetes officially. You can check the doc here


We have examples defined to deploy it to kubernetes and using acls. Please checkout out examples


Defining ACL's

Details on configuring weaver can be found here

Please note

As the famous saying goes,

All Load balancers are proxies, but not every proxy is a load balancer
, weaver currently does not support load balancing.


If you'd like to contribute to the project, refer to the contributing documentation


Copyright 2018, GO-JEK Tech (http://gojek.tech)

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at


Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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