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56 lines
1.0 KiB
Markdown
56 lines
1.0 KiB
Markdown
# pkce-challenge
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Generate or verify a Proof Key for Code Exchange (PKCE) challenge pair.
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Read more about [PKCE](https://www.oauth.com/oauth2-servers/pkce/authorization-request/).
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## Installation
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```bash
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npm install pkce-challenge
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```
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## Usage
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Default length for the verifier is 43
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```js
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import pkceChallenge from "pkce-challenge";
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await pkceChallenge();
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```
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gives something like:
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```js
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{
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code_verifier: 'u1ta-MQ0e7TcpHjgz33M2DcBnOQu~aMGxuiZt0QMD1C',
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code_challenge: 'CUZX5qE8Wvye6kS_SasIsa8MMxacJftmWdsIA_iKp3I'
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}
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```
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### Specify a verifier length
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```js
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const challenge = await pkceChallenge(128);
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challenge.code_verifier.length === 128; // true
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```
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### Challenge verification
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```js
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import { verifyChallenge } from "pkce-challenge";
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(await verifyChallenge(challenge.code_verifier, challenge.code_challenge)) ===
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true; // true
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```
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### Challenge generation from existing code verifier
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```js
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import { generateChallenge } from "pkce-challenge";
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(await generateChallenge(challenge.code_verifier)) === challenge.code_challenge; // true
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```
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