构建一个基本应用程序,用户可以使用MEAN Stack查找服务提供商,并且谈判结束后,协议会自动生成,并且必须由双方签署。 卡住了用于身份验证的JWT令牌的生成。 我遵循的步骤是:
var url = "https://account-d.docusign.com/oauth/auth?response_type=code&scope=signature&client_id=42017946-xxxx-xxxx-xxxx-81b0ca97dc9a&redirect_uri=http://localhost:4200/authorization_code/callback";
res.status(200).json({
status: 1,
message: 'Fetched',
value: url
});
使用URL中的代码成功重定向之后,将向后端进行API调用以生成JWT令牌。
令牌生成如下:
var jwt = require('jsonwebtoken');
var privateKey = fs.readFileSync(require('path').resolve(__dirname, '../../src/environments/docusign'));
const header = {
"alg": "RS256",
"typ": "JWT"
};
const payload = {
iss: '42017946-xxxx-xxxx-a5cd-xxxxxx',
sub: '123456',
iat: Math.floor(+new Date() / 1000),
aud: "account-d.docusign.com",
scope: "signature"
};
var token = jwt.sign(payload, privateKey, { algorithm: 'RS256', header: header });
上面使用的私钥来自docusign管理面板。
iss
->针对我的应用程序的集成密钥。
sub
->管理面板中用户符号下拉菜单中的用户ID
const axios = require('axios');
axios.post('https://account-d.docusign.com/oauth/token',
{
grant_type: "urn:ietf:params:oauth:grant-type:jwt-bearer",
assertion: token
})
.then(resposne => {
console.log(response);
})
.catch(err => {
if (err.response) {
console.log(err);
} else if (err.request) {}
else {}
})
但是我经常出错:{ error: 'invalid_grant', error_description: 'no_valid_keys_or_signatures' }
答案 0 :(得分:0)
我建议使用node.JS SDK或npm软件包,并使用build-it JWT方法进行身份验证。代码如下所示: (click here for GitHub example)
DsJwtAuth.prototype.getToken = async function _getToken() {
// Data used
// dsConfig.dsClientId
// dsConfig.impersonatedUserGuid
// dsConfig.privateKey
// dsConfig.dsOauthServer
const jwtLifeSec = 10 * 60, // requested lifetime for the JWT is 10 min
scopes = "signature", // impersonation scope is implied due to use of JWT grant
dsApi = new docusign.ApiClient();
dsApi.setOAuthBasePath(dsConfig.dsOauthServer.replace('https://', '')); // it should be domain only.
const results = await dsApi.requestJWTUserToken(dsConfig.dsClientId,
dsConfig.impersonatedUserGuid, scopes, rsaKey,
jwtLifeSec);
const expiresAt = moment().add(results.body.expires_in, 's').subtract(tokenReplaceMin, 'm');
this.accessToken = results.body.access_token;
this._tokenExpiration = expiresAt;
return {
accessToken: results.body.access_token,
tokenExpirationTimestamp: expiresAt
};