JSON Schema @jsonschema
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents - 60+ million weekly installs. Used by webpack. Built into VSCode. json-schema.org The Internet Joined October 2012-
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š Big news: Our first Platinum Sponsor for the JSON Schema Conf (Dec 11, Paris) is @dottxtai š They provide a fast, reliable model generating valid JSON 100% of the time via API ā for extraction, classification, workflows & more. Join in supporting: opencollective.com/json-schema/evā¦
Are you using #JSONSchema in your work? Join our adopters list ā github.com/json-schema-orā¦ Itās a small way to share your story & support open standards, while showing others how the ecosystem is growing š±
š£ The Call for Proposals for the JSON Schema Conference in Paris, Dec 11, 2025 is now open! Weāre looking for talks from developers, implementers, open source contributors, and anyone using JSON Schema in creative or impactful ways. Submit your talk: forms.gle/zaVhgqdPvja38rā¦
š Big news: weāve got our first individual sponsor for the JSON Schema Conference 2025 in Paris! You can join too with just $10, because this is OUR conference & we have to represent šŖš½ Community and Company sponsor tiers also available. opencollective.com/json-schema/evā¦
CFP is now live for the JSON Schema conference 2025š forms.gle/zaVhgqdPvja38rā¦ Weāre also welcoming sponsors to support the event. Tiers from $10 ā $3,000 will make a big difference in supporting us. š Sponsor info: opencollective.com/json-schema/evā¦ #JSONSchema #APIs #OpenSource
š Weāre heading to APIdays India š®š³! JSON Schema will be there to connect, share stories, and talk about how schemas power the API ecosystem. āØ Going too? Let us know, please weād love to meet! Learn more: apidays.global/events/india
Happy new month from the #JSONSchema community! Thanks to everyone building, sharing & supporting structured data standards. Get involved; Join us: json-schema.org/slack Sponsor: opencollective.com/json-schema Adopters: github.com/json-schema-orā¦ #OpenSource #DevCommunity
JSON Schema Bits: When to (and not to) use allOf keyword In Draft-07 and earlier, you needed to wrap $ref in allOf if other keywords were present but since Draft 2019-09, thatās no longer necessary. Docs: json-schema.org/understanding-ā¦ Learn JSON Schema: learnjsonschema.com/2020-12/applicā¦
JSON Schema Conference planning is underway! Our meetings are open, and you can still join the process. When: August 27, 3pm UTC Issue Link: github.com/json-schema-orā¦ Help us shape the conference together š #JSONSchema #Community
āØ JSON Schema ā Code Generators! Turn your schemas into ready-to-use code across languages š Less boilerplate, more building. š Explore the tools: json-schema.org/tools?query=&sā¦ Whatās your go-to Schema to Code tool? š
Adopter Spotlight: @tyk_io! š Weāre thrilled to highlight Tyk, an open-source API Gateway that puts you in control of API management. Is your organization using JSON Schema, add your name to support: github.com/json-schema-orā¦ Letās keep building, sharing, and growing together!
Join us today for the JSON Schema Open Community Working Meeting! Time: 1:00 PT Link: meet.google.com/raz-ptdn-ewf Whether youāre a long-time contributor or just getting curious, this is your space to hear updates and learn more about JSON Schema.
JSON Schema Bits: Good & Bad Practices of Using additionalProperties: false ā Allows only defined props ā Fails if extras appear ā Inside allOf, it wonāt see properties in other subschemas, try unevaluatedProperties. Read more: json-schema.org/understanding-ā¦
Big shout-out to @gregsdennis! He tackled one of .NETās biggest JSON deserialization validation gaps, now with schema generation + full ASP.NET API pipeline integration. Transparent. Developer-friendly. Delightful to use. Read more š blog.json-everything.net/posts/json-schā¦
JSON Schema Bits Letās explore the enum keyword! enum is used to specify a fixed set of valid values for a property. Great for roles, categories, etc. More in the docs: json-schema.org/understanding-ā¦ Join our community: json-schema.org/slack #JSONSchema #DevTips #OpenSource #API
Join us for JSON Schema Office Hours Today! Got questions? Weāre here to help you understand schemas, tools, contributions, you name it. Time: 15:00 BST Meeting link: meet.google.com/ofg-mtnn-dqc Be part of our community: json-schema.org/slack All welcome. Come say hi!
Happy new month from the #JSONSchema community! Thanks to everyone building, sharing & supporting structured data standards. Get involved: Join us: json-schema.org/slack Sponsor: opencollective.com/json-schema Adopters: github.com/json-schema-orā¦ #OpenSource #DevCommunity
JSON Schema Bits: Tuples! Tuples let you assign a different type to each position in an array using prefixItems. In the code snippet below, it defines an array like [true, 42], no more, no less. Read more: json-schema.org/understanding-ā¦
We are proud to share work of our community member Bence ErÅs, publishing the first stable version ofĀ Kappa. Kappa is an OpenAPI library for Java, with support for OpenAPI 3.1 and JSON Schema draft2020-12. Reddit Post: reddit.com/r/java/commentā¦
Contributor of the Month: Aqib Nawab! For his amazing contributions on A Tour of JSON Schema, an interactive playground to learn JSON schema! Weāre grateful for your dedication, insight & community spirit. Try it here: tour.json-schema.org #OpenSource #JSONSchema
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