feat: migration 2

packages/core/src/protobuf/decodeProtobuf.ts

@@ -0,0 +1,9 @@
+import { lookupProtobufType, ProtoSource } from './lookupProtobufType';
+
+export function decodeProtobuf<Type>(
+  source: ProtoSource,
+  type: string,
+  data: Uint8Array,
+) {
+  return lookupProtobufType(source, type).decode(data).toJSON() as Type;
+}

packages/core/src/protobuf/encodeProtobuf.ts

@@ -0,0 +1,14 @@
+import { lookupProtobufType, ProtoSource } from './lookupProtobufType';
+
+export function encodeProtobuf(
+  source: ProtoSource,
+  type: string,
+  data: Record<string, any>,
+) {
+  const message = lookupProtobufType(source, type);
+  const verification = message.verify(data);
+
+  if (verification !== null) throw new Error(verification);
+
+  return message.encode(message.create(data)).finish();
+}

packages/core/src/protobuf/encodeProtobufToBase64.ts

@@ -0,0 +1,11 @@
+import { encodeProtobuf } from './encodeProtobuf';
+import { ProtoSource } from './lookupProtobufType';
+
+export async function encodeProtobufToBase64(
+  source: ProtoSource,
+  type: string,
+  data: any,
+) {
+  const array = encodeProtobuf(source, type, data);
+  return Buffer.from(array).toString('base64');
+}

packages/core/src/protobuf/index.ts

@@ -0,0 +1,4 @@
+export * from './decodeProtobuf';
+export * from './encodeProtobuf';
+export * from './encodeProtobufToBase64';
+export * from './lookupProtobufType';

packages/core/src/protobuf/lookupProtobufType.ts

@@ -0,0 +1,11 @@
+import { parse } from 'protobufjs';
+import average_definitions from '../../protos/average_definitions.proto';
+import reviews from '../../protos/reviews.proto';
+
+export type ProtoSource = keyof typeof protos;
+
+const protos = { reviews, average_definitions };
+
+export function lookupProtobufType(source: ProtoSource, type: string) {
+  return parse(protos[source]).root.lookupType(type);
+}