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Posted to dev@avro.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/01/31 07:31:00 UTC
[jira] [Work logged] (AVRO-3322) JavaScript: Buffer is not defined in browser environment
[ https://issues.apache.org/jira/browse/AVRO-3322?focusedWorklogId=717791&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-717791 ]
ASF GitHub Bot logged work on AVRO-3322:
----------------------------------------
Author: ASF GitHub Bot
Created on: 31/Jan/22 07:30
Start Date: 31/Jan/22 07:30
Worklog Time Spent: 10m
Work Description: martin-g commented on pull request #1473:
URL: https://github.com/apache/avro/pull/1473#issuecomment-1025451954
I've created https://issues.apache.org/jira/browse/AVRO-3338 for ESM.
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Issue Time Tracking
-------------------
Worklog Id: (was: 717791)
Time Spent: 3h 20m (was: 3h 10m)
> JavaScript: Buffer is not defined in browser environment
> --------------------------------------------------------
>
> Key: AVRO-3322
> URL: https://issues.apache.org/jira/browse/AVRO-3322
> Project: Apache Avro
> Issue Type: Bug
> Components: js
> Environment: Firefox 96 & Brave 1.34(based on chromium)
> Reporter: ruleeeer
> Assignee: Martin Tzvetanov Grigorov
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.11.1, 1.12.0
>
> Attachments: image-2022-01-25-15-57-43-468.png
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> When I use avro in my browser, I find that I get the `Buffer is undefined error`
> !image-2022-01-25-15-57-43-468.png!
> The code I use is simple, it comes from the github repository readme.md
> {code:javascript}
> var avro = require('avro-js');
> var type = avro.parse({
> name: 'Pet',
> type: 'record',
> fields: [
> {name: 'kind', type: {name: 'Kind', type: 'enum', symbols: ['CAT', 'DOG']}},
> {name: 'name', type: 'string'}
> ]
> });
> var pet = {kind: 'CAT', name: 'Albert'};
> var buf = type.toBuffer(pet); // Serialized object.
> var obj = type.fromBuffer(buf); // {kind: 'CAT', name: 'Albert'}
> {code}
> Later I traced the source code and found that Buffer is used directly in `/etc/browser/avro.js` and `/lib/schema.js`, which is not a problem in the node environment because the Buffer object is mounted globally, but it is a problem in the browser environment because using buffer polyfill will not mount the Buffer object globally, You need to declare `var Buffer = require('buffer').Buffer` manually, so that it can be used in the browser environment without affecting the node environment, which also gets its Buffer from require('buffer').
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