slackapi/java-slack-sdk

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Slack Developer Kit (including Bolt for Java) for any JVM language

Stars: 602
Forks: 232
Open beginner issues: 0
Indexed issues: 32
Avg merge: 4d 9h
Merged PRs (30d): 7

Dominant language: Java
License: MIT
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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32 issues indexed so far

Flaky: AuthProxyHeadersTest.rtm intermittently sees 3 proxy tunnels, expects 2 Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

slackapi/java-slack-sdk#1630 · 2 comments · Opened Aug 11, 2026
Upgrade Jetty Open

auto-triage-skip dependencies good first issue

Difficulty 4/5 3-5 days Newbie friendliness 45/100

slackapi/java-slack-sdk#1567 · 4 comments · Opened Mar 19, 2026
Allow empty text parameter in chatPostMessage when using metadata without warnings Open

auto-triage-skip discussion enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

slackapi/java-slack-sdk#1535 · 5 comments · Opened Nov 14, 2025
Workflows, Slack Apps and forms Open

auto-triage-skip question untriaged

Difficulty 5/5 Over a week Newbie friendliness 25/100

slackapi/java-slack-sdk#1528 · 7 comments · Opened Nov 2, 2025
Update okhttp to 5.x Open

auto-triage-skip dependencies project:slack-api-client project:slack-app-backend

Difficulty 4/5 3-5 days Newbie friendliness 48/100

slackapi/java-slack-sdk#1500 · 11 comments · 1 reaction · Opened Aug 26, 2025
Table Block Support Open

auto-triage-skip enhancement project:slack-api-model

Difficulty 3/5 1-2 days Newbie friendliness 68/100

slackapi/java-slack-sdk#1499 · 4 comments · 3 reactions · Opened Aug 25, 2025
Support description of mrkdwn type in OptionObject Open

auto-triage-skip enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

slackapi/java-slack-sdk#1471 · 1 comment · Opened May 8, 2025
Add blocks and blocksAsString to filesUploadV2 Open

auto-triage-skip bug enhancement project:slack-api-client

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

slackapi/java-slack-sdk#1470 · 2 comments · 1 reaction · Opened May 8, 2025
Deserialization on attachment id as Integer out of range Open

bug java server-side-issue

Difficulty 3/5 1-2 days Newbie friendliness 45/100

slackapi/java-slack-sdk#1468 · 3 comments · Opened May 5, 2025
Deserialization issue with slack sdk with message attachments Open

auto-triage-skip bug needs info project:slack-api-model

Difficulty 4/5 3-5 days Newbie friendliness 25/100

slackapi/java-slack-sdk#1465 · 7 comments · Opened Apr 22, 2025
MethodsCompletionException is unnecessarily complex Open

enhancement project:slack-api-client

Difficulty 3/5 1-2 days Newbie friendliness 35/100

slackapi/java-slack-sdk#1452 · 1 comment · Opened Mar 12, 2025
Slack API issues with deserializing api payloads Open

auto-triage-skip bug needs info

Difficulty 3/5 1-2 days Newbie friendliness 35/100

slackapi/java-slack-sdk#1450 · 7 comments · Opened Mar 4, 2025
New release key not mentioned in release notes or SECURITY.md? Open

auto-triage-skip discussion question

Difficulty 3/5 1-2 days Newbie friendliness 52/100

slackapi/java-slack-sdk#1422 · 15 comments · Opened Jan 14, 2025
Question: Is it possible to add ViewState to blockSuggestion events? Open

auto-triage-skip enhancement server-side-issue

Difficulty 5/5 Over a week Newbie friendliness 30/100

slackapi/java-slack-sdk#1292 · 5 comments · Opened Mar 19, 2024
Add documentation for using the `SlackSignature` verifier from `app_backend` with specific Java requirements Open

docs project:bolt

Difficulty 3/5 1-2 days Newbie friendliness 38/100

slackapi/java-slack-sdk#1290 · 2 comments · Opened Mar 6, 2024
Not able to add bots to DMs/MPDMs Open

auto-triage-skip enhancement server-side-issue

Difficulty 5/5 Over a week Newbie friendliness 20/100

slackapi/java-slack-sdk#1260 · 16 comments · Opened Jan 3, 2024
Make saveBot required in the InstallationService interface Open

discussion project:bolt

slackapi/java-slack-sdk#1253 · 4 comments · 1 reaction · 1 assignee · Opened Dec 12, 2023
Enable synchronizing SlackConfig changes to already initialized API clients Open

enhancement project:slack-api-client

Difficulty 5/5 Over a week Newbie friendliness 25/100

slackapi/java-slack-sdk#1132 · Opened Mar 27, 2023
S3 object metadata not found for bot/none-none Open

bug needs info project:bolt

slackapi/java-slack-sdk#1091 · 3 comments · 1 assignee · Opened Nov 21, 2022
Upgrade slf4j-api to 2.0 Open

dependencies project:bolt project:slack-api-client project:slack-api-client/rtm project:slack-app-backend

slackapi/java-slack-sdk#1034 · 3 comments · 1 assignee · Opened Aug 22, 2022
5 threads (for the default singleton) can be created even when SlackConfig#statsEnabled is false Open

enhancement project:slack-api-client

slackapi/java-slack-sdk#987 · 2 comments · 1 reaction · 1 assignee · Opened May 19, 2022
Upgrade Tyrus WebSocket client library (used in Socket Mode client ) to v2 Open

dependencies enhancement project:slack-api-client

Difficulty 4/5 3-5 days Newbie friendliness 25/100

slackapi/java-slack-sdk#972 · 4 comments · 2 reactions · Opened Apr 17, 2022
Jakarta EE support in Slack Java SDK Open

enhancement project:bolt

Difficulty 5/5 Over a week Newbie friendliness 25/100

slackapi/java-slack-sdk#919 · 6 comments · 3 reactions · Opened Jan 26, 2022
Replace deprecated oss-parent parent POM Open

enhancement good first issue project:bolt project:slack-api-client project:slack-api-client/rtm project:slack-api-model project:slack-app-backend

Difficulty 3/5 1-2 days Newbie friendliness 35/100

slackapi/java-slack-sdk#906 · Opened Dec 15, 2021
Socket-mode application become a zombie when unhandled exception occurs in single-threaded thread pool Open

auto-triage-skip needs info question

slackapi/java-slack-sdk#833 · 11 comments · 1 assignee · Opened Sep 1, 2021
SocketModeApp (JavaWebSocket) does not support proxy with username:password Open

dependencies project:slack-api-client

slackapi/java-slack-sdk#792 · 4 comments · 1 assignee · Opened Jul 26, 2021
Completely disable thread pool initialization for metrics feature Open

enhancement project:slack-api-client

Difficulty 4/5 3-5 days Newbie friendliness 25/100

slackapi/java-slack-sdk#731 · 12 comments · Opened Apr 21, 2021
slack-api-client 1.x is not compatible with tyrus-standalone-client 2.x Open

dependencies enhancement project:slack-api-client

Difficulty 4/5 3-5 days Newbie friendliness 35/100

slackapi/java-slack-sdk#720 · 1 comment · 2 reactions · Opened Mar 30, 2021
Improve unit tests not to be affected by env variables Open

enhancement project:bolt

slackapi/java-slack-sdk#591 · 1 assignee · Opened Oct 15, 2020
Some links in Javadoc pages are not working Open

docs

Difficulty 4/5 3-5 days Newbie friendliness 35/100

slackapi/java-slack-sdk#434 · 3 comments · 1 reaction · Opened Apr 17, 2020
RDB support for the OAuth flow datastore Open

enhancement project:bolt

Difficulty 5/5 Over a week Newbie friendliness 25/100

slackapi/java-slack-sdk#347 · 4 comments · 2 reactions · Opened Feb 21, 2020
Java 9+ Modularity Supports Open

enhancement project:bolt project:slack-api-client project:slack-api-model

Difficulty 5/5 Over a week Newbie friendliness 25/100

slackapi/java-slack-sdk#198 · 6 comments · Opened Aug 8, 2019

slackapi/java-slack-sdk

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