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Protobuf to ts transpiler
$ npm i protons
protons
contains the code to compile .proto
files to .ts
files and protons-runtime
contains the code to do serialization/deserialization to Uint8Array
s during application execution.
$ npm install --save-dev protons
$ npm install --save protons-runtime
First generate your .ts
files:
$ protons ./path/to/foo.proto ./path/to/output.ts
Then run tsc over them as normal:
$ tsc
In your code import the generated classes and use them to transform to/from bytes:
import { Foo } from './foo.js'
const foo = {
message: 'hello world'
}
const encoded = Foo.encode(foo)
const decoded = Foo.decode(encoded)
console.info(decoded.message)
// 'hello world'
This module uses the internal reader/writer from protobuf.js
as it is highly optimised and there's no point reinventing the wheel.
It does have one or two differences:
proto3
semantics onlyBigInt
s and not Long
s (e.g. int64
, uint64
, sint64
etc)optional
fields are set on the deserialized object forms as undefined
instead of the default valuessingular
fields set to default values are not serialized and are set to default values when deserialized if not set - protobuf.js diverges from the language guide around this featuremap
fields can have keys of any type - protobufs.js only supports stringsmap
fields are deserialized as ES6 Map
s - protobuf.js uses Object
sSome features are missing OneOf
s, etc due to them not being needed so far in ipfs/libp2p. If these features are important to you, please open PRs implementing them along with tests comparing the generated bytes to protobuf.js
and pbjs
.
Licensed under either of
Contributions welcome! Please check out the issues.
Also see our contributing document for more information on how we work, and about contributing in general.
Please be aware that all interactions related to this repo are subject to the IPFS Code of Conduct.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
FAQs
Protobuf to ts transpiler
The npm package protons receives a total of 13,636 weekly downloads. As such, protons popularity was classified as popular.
We found that protons demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 5 open source maintainers collaborating on the project.
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