vectordotdev/vector

MessagePack codec (or VRL functions)

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#8,675 opened on Aug 12, 2021

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 (2 comments) (8 reactions) (0 assignees)Rust (21,837 stars) (2,126 forks)batch import
domain: codecsdomain: vrlgood first issuetype: featurevrl: stdlib

Description

We have a Kafka topic with msgpack events we would like to deserialize (and reserialize after some transformations in an other topic). Currently, we use Logstash for that with this plugin : https://github.com/logstash-plugins/logstash-codec-msgpack

It could be very useful to have a generic msgpack codec in Vector like for JSON format, maybe in the form of a pair VRL functions parse_msgpack / encode_msgpack ?

Contributor guide

Tech stack
rustkafka
Domain
backenddata
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Rust programmingVector codebase basicsMessagePack format
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Review existing codec implementations (e.g., JSON codec) in the Vector codebase, likely under src/codecs/. Consider using the rmp (rmp serde) crate for MessagePack serialization. If implementing VRL functions, examine the VRL standard library for existing parse/encode functions (e.g., parse json, encode json) and follow that pattern. Check issue comments for any additional requirements. No linked PRs or assignees, so the issue is open for contribution.
MessagePack codec (or VRL functions) · vectordotdev/vector#8675 | Good First Issue