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@ovotech/avro-timestamp-millis
Advanced tools
A Logical type for representing a date stored as the number of milliseconds since epoch
yarn add @ovotech/avro-timestamp-millis
And then you can use AvroEpochDays
for a logicalType of a field.
import { Type, Schema } from 'avsc';
import { AvroTimestampMillis } from '@ovotech/avro-timestamp-millis';
const eventSchema: Schema = {
type: 'record',
name: 'Event',
fields: [
{
name: 'field1',
type: { type: 'long', logicalType: 'timestamp-millis' },
},
],
};
const EventType = Type.forSchema(eventSchema, {
logicalTypes: { 'timestamp-millis': AvroTimestampMillis },
});
const encoded = EventType.toBuffer({ field1: new Date('2020-01-01') });
const decoded = EventType.fromBuffer(encoded);
console.log(decoded);
It also supports schema evolution from int, logical:date and string types
import { Type, Schema } from 'avsc';
import { AvroTimestampMillis } from '@ovotech/avro-timestamp-millis';
const previousSchema: Schema = {
type: 'record',
name: 'Event',
fields: [
{
name: 'field1',
type: { type: 'string' },
},
],
};
const eventSchema: Schema = {
type: 'record',
name: 'Event',
fields: [
{
name: 'field1',
type: { type: 'long', logicalType: 'timestamp-millis' },
},
],
};
const PreviousType = Type.forSchema(previousSchema);
const EventType = Type.forSchema(eventSchema, {
logicalTypes: { 'timestamp-millis': AvroTimestampMillis },
});
const previousTypeResolver = EventType.createResolver(PreviousType);
const encoded = PreviousType.toBuffer({ field1: '2020-01-01' });
const decoded = EventType.fromBuffer(encoded, previousTypeResolver);
console.log(decoded);
Then you can run the tests with:
yarn test
Style is maintained with prettier and tslint
yarn lint
Deployment is preferment by lerna automatically on merge / push to master, but you'll need to bump the package version numbers yourself. Only updated packages with newer versions will be pushed to the npm registry.
Have a bug? File an issue with a simple example that reproduces this so we can take a look & confirm.
Want to make a change? Submit a PR, explain why it's useful, and make sure you've updated the docs (this file) and the tests (see test folder).
This project is licensed under Apache 2 - see the LICENSE file for details
FAQs
A logical type representing Date as long number
The npm package @ovotech/avro-timestamp-millis receives a total of 1,166 weekly downloads. As such, @ovotech/avro-timestamp-millis popularity was classified as popular.
We found that @ovotech/avro-timestamp-millis demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 250 open source maintainers collaborating on the project.
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