max / makenotwork

Fix OAuth token exchange: send form-urlencoded per spec The /oauth/token endpoint expects application/x-www-form-urlencoded but the client was sending JSON, causing 415 errors. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Max J. <87768334+MaxJMath@users.noreply.github.com> · 2026-05-11 18:41 UTC

Commit: 90c58597e052b9f13c847cbf8552b3c842add08a

Parent: f1b410b

1 file changed, +8 insertions, -9 deletions

M shared/synckit-client/src/client/auth.rs +8 -9

			@@ -139,13 +139,13 @@ impl SyncKitClient {
139	139		) -> Result<(Uuid, Uuid)> {
140	140		let redirect_uri = format!("http://127.0.0.1:{}/", redirect_port);
141	141
142		-	let body = Bytes::from(serde_json::to_vec(&OAuthTokenRequest {
143		-	grant_type: "authorization_code",
144		-	code,
145		-	redirect_uri: &redirect_uri,
146		-	code_verifier,
147		-	client_id: &self.config.api_key,
148		-	})?);
	142	+	let form_params = [
	143	+	("grant_type", "authorization_code"),
	144	+	("code", code),
	145	+	("redirect_uri", &redirect_uri),
	146	+	("code_verifier", code_verifier),
	147	+	("client_id", &self.config.api_key),
	148	+	];
149	149
150	150		// OAuth authorization codes are single-use. Retrying after a
151	151		// network error would send an already-consumed code, producing a
			@@ -154,8 +154,7 @@ impl SyncKitClient {
154	154		let resp = check_response(
155	155		self.http
156	156		.post(&self.endpoints.oauth_token)
157		-	.header("content-type", "application/json")
158		-	.body(body)
	157	+	.form(&form_params)
159	158		.send()
160	159		.await?,
161	160		)