Coinbase API 无效请求(oauth 令牌)

Coinbase API invalid request (oauth token)

我正在尝试使用 Coinbase API 进行 oauth,但不断收到无效的请求响应 "The request is missing a required parameter, includes an unsupported parameter value, or is otherwise malformed."

按照他们的指导 https://developers.coinbase.com/docs/wallet/coinbase-connect/integrating,我能够:

  1. 成功重定向用户以请求访问 Coinbase

获取https://www.coinbase.com/oauth/authorize?response_type=code&client_id=YOUR_CLIENT_ID&redirect_uri=YOUR_REDIRECT_URL&state=SECURE_RANDOM&scope=wallet:accounts:read

  1. 成功将 Coinbase 重定向回您的网站

获取https://example.com/oauth/callback?code=4c666b5c0c0d9d3140f2e0776cbe245f3143011d82b7a2c2a590cc7e20b79ae8&state=134ef5504a94 app://oauth-coins?code=4c666b5c0c0d9d3140f2e0776cbe245f3143011d82b7a2c2a590cc7e20b79ae8

  1. 未能成功交换访问令牌代码 POSThttps://api.coinbase.com/oauth/token

    let url = URL(string: "https://api.coinbase.com/oauth/token")! //
    var request = URLRequest(url: url)
    request.setValue("authorization_code", forHTTPHeaderField: "grant_type")
    request.setValue("\(self.code)", forHTTPHeaderField: "code")
    request.setValue("clientid1234", forHTTPHeaderField: "client_id")
    request.setValue("clientsecret1234", forHTTPHeaderField: "client_secret")
    request.setValue("app://oauth-coins", forHTTPHeaderField: "redirect_uri")
    

因为我在 json:

中得到一个错误 return
{
    error = "invalid_request";
    "error_description" = "The request is missing a required parameter, includes an unsupported parameter value, or is otherwise malformed.";
}

更新(已解决):

我不需要 setValue 所有参数,而是 post 它们作为 request.httpBody

我不需要 setValue 所有参数,而是 post 它们作为 request.httpBody