Initial implementation.

Author: lgarron

.gitignore

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+/.rpt2_cache
+/dist
+/node_modules

.npmignore

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+*
+!/LICENSE.md
+!/README.md
+!/package.json
+!/package-lock.json
+!/dist/**/*
+!/src/**/*

.travis.yml

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+language: node_js
+node_js:
+  - "node"
+  - "lts/*"
+script:
+  - npm install
+  - npm test

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, and it also applies when
+an individual is representing the project or its community in public spaces.
+Examples of representing a project or community include using an official
+project e-mail address, posting via an official social media account, or acting
+as an appointed representative at an online or offline event. Representation of
+a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [email protected]. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
+

LICENSE.md

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+Copyright (c) 2019 GitHub, Inc.
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

Makefile

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+# Note: the first command becomes the default `make` target.
+NPM_COMMANDS = build dev test lint setup print-schemas clean
+
+.PHONY: $(NPM_COMMANDS)
+$(NPM_COMMANDS):
+	npm run $@

README.md

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+# `webauthn-json`
+
+`webauthn-json` is a client-side Javascript library that serves as convenience wrapper for the the [WebAuthn API](https://www.w3.org/TR/webauthn/) by encoding binary data using base64.
+
+The WebAuthn API itself takes input and output values that look almost like JSON, except that binary data is represented as `ArrayBuffer`s. Using `webauthn-json` allows the data to be sent from/to the server as normal JSON without client-side processing.
+
+## Usage
+
+1) Replace calls to `navigator.create()` with `create()`, and `navigator.get()` with `get()`.
+2) Encode/decode binary values on the server as base64.
+
+### Example
+
+Install using:
+
+    npm install --save webauthn-json
+    
+Then:
+
+    import {create} from "webauthn-json"
+
+    async auth() {
+      const request = await fetch("...");
+      const response = create(request.json());
+      await fetch("...", {
+        method: "POST",
+        body: JSON.stringify(response)
+      });
+    }
+
+## Design Considerations
+
+There are are several ways to encode JSON with binary fields. `webauthn-json` focuses on one simple approach: converting the known structure [using a simple (custom) schema format](https://github.com/github/webauthn-json/blob/master/src/webauthn-schema.ts). `webauthn-json` uses a few tricks for a compact schema encoding: the production build is about ≈2KB uncompressed (<1KB gzipped).
+
+Right now, we only convert fields explicitly known to be used by the WebAuthn API. This means that you'll have to update to a newer version of this library if you want to use new fields in the future.
+
+The scope of `webauthn-json` is fairly small — it's essentially feature-complete. However, we're happy to accept issues or pull requests that address the core goal of the project!

jest.config.js

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+module.exports = {
+  "roots": [
+    "<rootDir>/src",
+    "<rootDir>/test"
+  ],
+  "transform": {
+    "^.+\\.ts$": "ts-jest"
+  },
+}