softwaremill/tapir

View on GitHub

Rapid development of self-documenting APIs

Stars: 1.5k
Forks: 468
Open beginner issues: 0
Indexed issues: 150
Avg merge: 5h 37m
Merged PRs (30d): 34

Dominant language: Scala
License: Apache-2.0
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

150 open issues indexed

Netty server never responds to requests with Expect: 100-continue Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

softwaremill/tapir#5503 · Opened Sep 1, 2026
[Feature Request] codegen: add support for suffixed content types Open

Difficulty 3/5 1-2 days Newbie friendliness 67/100

softwaremill/tapir#5494 · Opened Aug 26, 2026
[Feature Request] codegen: do not wrap types in Option if a default is present Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

softwaremill/tapir#5492 · Opened Aug 25, 2026
[Feature Request] codegen: add support for default values in parameters Open

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

softwaremill/tapir#5490 · Opened Aug 24, 2026
[BUG] vert.x streaming endpoints hang whole application when VertxCatsServerInterpreter is used with ZIO Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

softwaremill/tapir#5458 · Opened Aug 9, 2026
codegen: underscores break schema names Open

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

softwaremill/tapir#5415 · Opened Jul 14, 2026
codegen: add presets Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

softwaremill/tapir#5402 · Opened Jul 10, 2026
Hardcoded IO in generated code Open

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

softwaremill/tapir#5285 · 22 comments · Opened Jun 9, 2026
[Feature Request] Support http4s on Scala Native 0.5 Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

softwaremill/tapir#5196 · Opened Apr 30, 2026
oneOf inputs with different types for different formats Open

v2

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

softwaremill/tapir#4971 · 2 comments · 1 reaction · Opened Dec 10, 2025
Cross-platform reuse blocker: OnDecodeFailureNextEndpointAttribute is server-only and private Open

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

softwaremill/tapir#4935 · 6 comments · Opened Nov 21, 2025
[BUG] RejectHandler doesn't works for Vertx web server Open

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

softwaremill/tapir#4870 · 2 comments · Opened Oct 14, 2025
SSE with a project having shared routes for jvm and scalajs Open

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

softwaremill/tapir#4724 · 3 comments · Opened Jul 24, 2025
Schema support for mutually exclusive fields (exactly oneOf) Open

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

softwaremill/tapir#4684 · 1 comment · Opened Jul 2, 2025
Specify audience in Oauth 2.0 Client Credentials flow Open

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

softwaremill/tapir#4663 · 1 comment · Opened Jun 19, 2025
Test the VT-native Netty Virtual Thread scheduler for netty-server-sync Open

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

softwaremill/tapir#4658 · Opened Jun 17, 2025
Allow not including the received (invalid) value in the error message created by DefaultDecodeFailureHandler Open

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

softwaremill/tapir#4496 · Opened Apr 8, 2025
[BUG] Cannot use a body in serverSecurityLogic: causes java.lang.IllegalStateException: This publisher only supports one subscriber Open

softwaremill/tapir#4442 · 4 comments · 1 assignee · Opened Mar 20, 2025
[Feature Proposal] Support custom paths and multiple components in custom Validators Open

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

softwaremill/tapir#4417 · 3 comments · Opened Mar 13, 2025
[BUG] Invalid transaction names in OTEL Java agent when using Tapir + Akka Http Open

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

softwaremill/tapir#4343 · 3 comments · Opened Feb 14, 2025
[BUG]tapir_enumeratum doest not handle @customise annotation and shortEnum output String type. Open

softwaremill/tapir#4292 · 1 assignee · Opened Jan 27, 2025
When an invalid message (which errors on decoding) is sent to a WS endpoint, the WS is not closed Open

zio

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

softwaremill/tapir#4291 · 1 reaction · Opened Jan 27, 2025
Include examples from serverless in the examples documentation page Open

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

softwaremill/tapir#4225 · Opened Dec 27, 2024
[BUG] Server should return 400 Bad request if not all body bytes received Open

softwaremill/tapir#4169 · 3 comments · 2 assignees · Opened Nov 14, 2024
Provide a generator that can generate valid requests/responses from an Endpoint definition Open

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

softwaremill/tapir#4124 · Opened Oct 30, 2024
Respond in valid JSON Array when using streams Open

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

softwaremill/tapir#4116 · 1 comment · 1 reaction · Opened Oct 24, 2024
Does ZTapir endpoint execute code within a scope? Open

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

softwaremill/tapir#4055 · 1 comment · Opened Sep 19, 2024
[Question] Handling empty query params Open

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

softwaremill/tapir#4010 · 4 comments · Opened Sep 3, 2024
`SttpClientInterpreter` does not propagate headers in the http response for websockets Open

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

softwaremill/tapir#3959 · 6 comments · Opened Jul 26, 2024
Should we prevent space inside endpoint name/operationId Open

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

softwaremill/tapir#3932 · 1 comment · Opened Jul 15, 2024
[BUG] mapping is sometimes lost in schema generation Open

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

softwaremill/tapir#3928 · Opened Jul 12, 2024
Simple default bundle compatible with Scala toolkit Open

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

softwaremill/tapir#3914 · 7 comments · Opened Jul 8, 2024
Snake case and discriminator config ignored Open

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

softwaremill/tapir#3904 · 5 comments · Opened Jul 5, 2024
[BUG] Enumeration schema is inconsistent depending on the encoding function Open

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

softwaremill/tapir#3900 · 3 comments · Opened Jul 3, 2024
[BUG] Option of CommaSeparated has a strange behavior when no value is provided Open

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

softwaremill/tapir#3890 · 6 comments · Opened Jul 1, 2024
Netty gRPC server Open

enhancement Netty

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

softwaremill/tapir#3878 · 1 comment · Opened Jun 27, 2024
[BUG] incorrect names for newtyped map schemas Open

softwaremill/tapir#3835 · 2 comments · 1 assignee · Opened Jun 11, 2024
Can we support custom error message for Enumeration Validation? Open

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

softwaremill/tapir#3825 · 3 comments · Opened Jun 5, 2024
Can we provide some integration which would make it easier to work with htmx projects? Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

softwaremill/tapir#3808 · Opened May 30, 2024
Auto-derive default values Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

softwaremill/tapir#3800 · 1 comment · Opened May 29, 2024
[BUG] Security path inputs always goes before regular input segments Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

softwaremill/tapir#3771 · 3 comments · Opened May 17, 2024
Allow for third-party routing logic to tap into the Tapir backends Open

enhancement

softwaremill/tapir#3770 · 8 comments · 1 reaction · 1 assignee · Opened May 17, 2024
Can we add `SchemaType.Intersection` for `SProduct`s? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

softwaremill/tapir#3767 · 1 comment · Opened May 15, 2024
Add a flag into `TSchemaToASchema` to distinguish between `mappings` or `consts` for discriminators. Open

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

softwaremill/tapir#3765 · 4 comments · Opened May 14, 2024
AsyncApi schema - use of `.withDiscriminator` for `Schema` renders illegal async api spec Open

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

softwaremill/tapir#3754 · 1 comment · 1 reaction · Opened May 8, 2024
Enchancement of the Endpoint DSL to support multiple path variables or combination of path variable and literal within single path segment Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

softwaremill/tapir#3747 · 4 reactions · Opened May 7, 2024
[Feature] Semi-auto enum schema derivation configuration Open

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

softwaremill/tapir#3737 · 2 reactions · Opened May 2, 2024
Relaxed enumeratum codecs Open

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

softwaremill/tapir#3711 · 4 comments · Opened Apr 22, 2024
Issue with Recognition of API path in Tapir version 10.4.1 Open

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

softwaremill/tapir#3702 · 5 comments · Opened Apr 19, 2024
[BUG] Websockets with zio-http can fail on too early messages on slow hosts Open

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

softwaremill/tapir#3685 · 1 reaction · Opened Apr 15, 2024

softwaremill/tapir

Get new issues in your inbox