oauth

OAuth flow examples

Each example here drives the three-leg OAuth2 authorization-code flow end to end:

1. Redirect the browser to cryptohopper.com/oauth2/authorize with your client_id.
2. User logs in and grants consent → browser redirected to your callback with a code.
3. Exchange code for an access_token at cryptohopper.com/oauth2/token.
4. Use the token on api.cryptohopper.com/v1/... calls.

Language	Directory	Notes
Node.js	nodejs/	Express + Node 18+ stdlib fetch. Zero third-party HTTP/OAuth libs.
Python	python/	requests
PHP	php/	curl + Bootstrap form

For a pure-curl walkthrough (any language), see ../quickstart/curl/.

Production-quality alternatives

The OAuth dance is the same regardless of language — every SDK keeps it as a one-time setup step you do outside the SDK. Once you have a token, the SDK handles everything from there.

The simplest end-to-end:

cryptohopper login              # browser consent, token persisted to ~/.cryptohopper/config.json
cat ~/.cryptohopper/config.json # extract the token if you need it elsewhere

That's the cryptohopper-cli doing all of the steps in this directory for you. Use it during development; reach for these per-language samples when you're embedding the flow in your own server-side app.