Yes, you can store the user's decision permanently until the scopes for the client have changed. This is managed by the

challenge

object returned from

getOAuth2ConsentRequest

. If the consent is skipped for the given OAuth2 client,

challenge.client.skip_consent

is

true

. Here is a TypeScript snippet showing how to determine whether to skip the consent screen UI:

typescript const { consent_challenge } = req.query // the HTTP request      const challenge = await oauth2     .getOAuth2ConsentRequest({ consentChallenge: String(consent_challenge) })     .then(({ data: body }) => body)      const skipConsent =     challenge.skip || // skip because the user accepted the consent previously     challenge.client.skip_consent // skip because the client is trusted      if (skipConsent) {     // If the consent is skipped, we accept the consent request immediately.     await oauth2.acceptOAuth2ConsentRequest({       consentChallenge: String(consent_challenge),       acceptOAuth2ConsentRequest: {         grant_scope: challenge.requested_scope,         grant_access_token_audience: challenge.requested_access_token_audience,         session,       },     })   }

This code checks if the consent can be skipped because the user has previously accepted the consent or because the client is trusted. If the consent can be skipped, the consent request is accepted immediately. For more information, you can refer to the [Ory documentation](https://www.ory.sh/docs/oauth2-oidc/custom-login-consent/flow#implementation).

Sure, I can guide you through the process of authorizing a user to a client using OAuth2 with

@ory/client

. Here are the steps: 1. Create an OAuth2 client: You can create a new OAuth2 client using the Ory Console, Ory CLI, Ory SDK, or REST API. Here is an example of how to create an OAuth2 client using the Ory SDK:

javascript import { Configuration, OAuth2Api } from "@ory/client"      const ory = new OAuth2Api(     new Configuration({       basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,       accessToken: process.env.ORY_API_KEY,     }),   )      export async function createOAuth2Client() {     await ory.createOAuth2Client({       oAuth2Client: {         grant_types: ["authorization_code", "refresh_token"],         redirect_uris: ["<https://example.com>"],         scope: "offline openid",         token_endpoint_auth_method: "client_secret_post",       },     })   }

[Source](https://www.ory.sh/docs/hydra/guides/oauth2-clients#create-oauth2-client) 2. Login: The Login Endpoint uses the

login_challenge

value in the URL to complete the login flow using the Ory SDK. Here is an example of how to handle the login:

javascript import { Configuration, OAuth2Api } from "@ory/client"   import { Request, Response } from "express"      const ory = new OAuth2Api(     new Configuration({       basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,       accessToken: process.env.ORY_API_KEY,     }),   )      export async function handleLogin(request: Request, response: Response) {     const challenge = request.query.login_challenge.toString()     const { data: loginRequest } = await ory.getOAuth2LoginRequest({       loginChallenge: challenge.toString(),     })        if (loginRequest.skip) {       await ory         .acceptOAuth2LoginRequest({           loginChallenge: challenge,           acceptOAuth2LoginRequest: {             subject: loginRequest.subject,           },         })         .then(({ data }) => response.redirect(data.redirect_to))       return     }     // ...   }

[Source](https://www.ory.sh/docs/oauth2-oidc/custom-login-consent/flow#login-endpoint-code-example) Please note that these are just examples and you might need to adjust them according to your specific needs. For more detailed information, you can refer to the [Ory documentation](https://www.ory.sh/docs/).

Yes, you're correct. The

OidcApi

extends the

OAuth2Api

and includes additional features related to OpenID Connect (OIDC). OIDC is an identity layer on top of the OAuth 2.0 protocol. It allows clients to verify the identity of the end-user based on the authentication performed by an authorization server, as well as to obtain basic profile information about the end-user. Here are examples of how to use

OidcApi

to register an OAuth2 and OpenID Connect client and to retrieve the OAuth2 and OpenID Connect client: Register OAuth2 and OpenID Connect clients:

javascript import { Configuration, OidcApi } from "@ory/client"      const ory = new OidcApi(     new Configuration({       basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,       accessToken: process.env.ORY_API_KEY,     }),   )      export async function createOidcDynamicClient() {     const { data } = await ory.createOidcDynamicClient({       oAuth2Client: {         grant_types: ["authorization_code", "refresh_token"],         redirect_uris: ["<https://example.com>"],         scope: "offline openid",         token_endpoint_auth_method: "client_secret_post",       },     })        console.log(data.registration_access_token) // Write this down, it is only sent once!     console.log(data.client_id, data.client_secret /* ... */)   }

[Source](https://www.ory.sh/docs/hydra/guides/oauth2-clients#register-oauth2-and-openid-connect-clients) Get OAuth2 and OpenID Connect clients:

javascript import { Configuration, OidcApi } from "@ory/client"      const ory = new OidcApi(     new Configuration({       basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,       accessToken: process.env.ORY_API_KEY,     }),   )      export async function getOidcDynamicClient(     id: string,     registrationAccessToken: string,   ) {     const { data } = await ory.getOidcDynamicClient(       {         id,       },       {         headers: {           Authorization: `Bearer ${registrationAccessToken}`,         },       },     )   }

[Source](https://www.ory.sh/docs/hydra/guides/oauth2-clients#get-oauth2-and-openid-connect-clients) These examples show how to use the

OidcApi

to interact with OAuth2 and OpenID Connect clients. You can find more examples of SDK usage in the autogenerated documentation for [OAuth2Api API](https://github.com/ory/hydra-client-go/blob/master/docs/OAuth2Api.md) and [OidcApi API](https://github.com/ory/hydra-client-go/blob/master/docs/OidcApi.md).

The

OidcApi

does not directly handle the login process. The login process is typically handled by your own application, which then interacts with the Ory APIs. However, the

OidcApi

can be used to interact with the OAuth2 and OpenID Connect clients, which are part of the login process. Here's an example of how you might handle a login using the

OAuth2Api

, which is similar to how you would use the `OidcApi`:

javascript import { Configuration, OAuth2Api } from "@ory/client"   import { Request, Response } from "express"      const ory = new OAuth2Api(     new Configuration({       basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,       accessToken: process.env.ORY_API_KEY,     }),   )      export async function handleLogin(request: Request, response: Response) {     const challenge = request.query.login_challenge.toString()     const { data: loginRequest } = await ory.getOAuth2LoginRequest({       loginChallenge: challenge.toString(),     })        if (loginRequest.skip) {       await ory         .acceptOAuth2LoginRequest({           loginChallenge: challenge,           acceptOAuth2LoginRequest: {             subject: loginRequest.subject,           },         })         .then(({ data }) => response.redirect(data.redirect_to))       return     }        // ...   }

[Source](https://www.ory.sh/docs/oauth2-oidc/custom-login-consent/flow#login-endpoint-code-example) In this example, the

handleLogin

function is an Express.js route handler that handles the login process. It uses the

OAuth2Api

to get the login request and accept the login request. Please note that this is just an example and you might need to adjust it according to your specific needs. For more detailed information, you can refer to the [Ory documentation](https://www.ory.sh/docs/).

Yes,

OidcApi

and

OAuth2Api

have different usage scopes and are used for different purposes. OAuth2Api: This is used for handling OAuth 2.0 flows. OAuth 2.0 is an authorization protocol that allows applications to gain limited access to user accounts on an HTTP service. It works by delegating user authentication to the service that hosts the user account and authorizing third-party applications to access the user account. OAuth 2.0 focuses on client developer simplicity while providing specific authorization flows for web applications, desktop applications, mobile phones, and living room devices. You would use

OAuth2Api

when you want to: - Create an OAuth2 client - Get or delete an OAuth2 client - Get or accept an OAuth2 login request - Get or accept an OAuth2 consent request OidcApi: This is used for handling OpenID Connect (OIDC) flows. OIDC is an identity layer on top of the OAuth 2.0 protocol. It allows clients to verify the identity of the end-user based on the authentication performed by an authorization server, as well as to obtain basic profile information about the end-user. You would use

OidcApi

when you want to: - Create an OIDC client - Get or delete an OIDC client - Get an OIDC well-known configuration - Get an OIDC public keys In summary, if you're working with OAuth 2.0 flows, you would use

OAuth2Api

. If you're working with OpenID Connect flows, you would use

OidcApi

. However, since OIDC is built on top of OAuth 2.0, there are many cases where you might use both

OAuth2Api

and

OidcApi

together. For more detailed information, you can refer to the [Ory documentation](https://www.ory.sh/docs/).

Sure, here's an example of how you might handle a login and consent flow using the

OAuth2Api

, supporting both cases where consent is required and where consent can be skipped:

javascript import { Configuration, OAuth2Api } from "@ory/client" import { Request, Response } from "express"  const ory = new OAuth2Api(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )  export async function handleLogin(request: Request, response: Response) {   const challenge = request.query.login_challenge.toString()   const { data: loginRequest } = await ory.getOAuth2LoginRequest({     loginChallenge: challenge.toString(),   })    if (loginRequest.skip) {     await ory       .acceptOAuth2LoginRequest({         loginChallenge: challenge,         acceptOAuth2LoginRequest: {           subject: loginRequest.subject,         },       })       .then(({ data }) => response.redirect(data.redirect_to))     return   }    // If login can't be skipped we MUST show the login UI.   response.render("login", {     // Pass the login challenge to the view     challenge: challenge,   }) }  export async function handleConsent(request: Request, response: Response) {   const challenge = request.query.consent_challenge.toString()   const { data: consentRequest } = await ory.getOAuth2ConsentRequest({     consentChallenge: challenge.toString(),   })    if (consentRequest.skip) {     await ory       .acceptOAuth2ConsentRequest({         consentChallenge: challenge,         acceptOAuth2ConsentRequest: {           grant_scope: consentRequest.requested_scope,           grant_access_token_audience: consentRequest.requested_access_token_audience,           session: {}, // Session data to be passed to the client         },       })       .then(({ data }) => response.redirect(data.redirect_to))     return   }    // If consent can't be skipped we MUST show the consent UI.   response.render("consent", {     // Pass the consent challenge to the view     challenge: challenge,   }) }

In this example, the

handleLogin

function is an Express.js route handler that handles the login process. It uses the

OAuth2Api

to get the login request and accept the login request. If the login can't be skipped, it renders a login UI. The

handleConsent

function is another Express.js route handler that handles the consent process. It uses the

OAuth2Api

to get the consent request and accept the consent request. If the consent can't be skipped, it renders a consent UI. Please note that this is just an example and you might need to adjust it according to your specific needs. For more detailed information, you can refer to the [Ory documentation](https://www.ory.sh/docs/oauth2-oidc/custom-login-consent/flow#implementation).

Sure, here's how you can extract the challenge string from a query parameter object in an Express.js route handler:

javascript export async function handleLogin(request: Request, response: Response) {   // Extract the challenge string from the query parameters   const challenge = request.query.login_challenge.toString()    // ... rest of your code }

In this example,

request.query

is an object containing the query parameters of the HTTP request.

login_challenge

is the name of the query parameter that contains the challenge string. We use

.toString()

to ensure that the challenge is a string. Please note that this is a very basic example and you might need to add error handling and validation to ensure that the

login_challenge

query parameter is present and is a valid string.

If you have the

response_type

,

client_id

, and

redirect_uri

as request parameters, you're likely initiating an OAuth2 Authorization Code flow. Here's a basic example of how you might handle this:

javascript import { Configuration, OAuth2Api } from "@ory/client" import { Request, Response } from "express"  const ory = new OAuth2Api(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )  export async function initiateOAuth2Flow(request: Request, response: Response) {   // Extract the parameters from the query   const responseType = request.query.response_type.toString()   const clientId = request.query.client_id.toString()   const redirectUri = request.query.redirect_uri.toString()    // Construct the authorization URL   const authorizationUrl = `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com/oauth2/auth?response_type=${responseType}&client_id=${clientId}&redirect_uri=${redirectUri}&scope=openid%20offline_access&state=12345|projects.oryapis.com/oauth2/auth?response_type=${responseType}&client_id=${clientId}&redirect_uri=${redirectUri}&scope=openid%20offline_access&state=12345>`    // Redirect the user to the Authorization Server to start the authorization flow   response.redirect(authorizationUrl) }

In this example, the

initiateOAuth2Flow

function is an Express.js route handler that initiates the OAuth2 Authorization Code flow. It extracts the

response_type

,

client_id

, and

redirect_uri

parameters from the query, constructs the authorization URL, and then redirects the user to this URL to start the authorization flow. Please note that this is just an example and you might need to adjust it according to your specific needs. For more detailed information, you can refer to the [Ory documentation](https://www.ory.sh/docs/oauth2-oidc/authorization-code-flow#step-1-get-the-users-permission).

The

getOAuth2LoginRequest

function is not used to authenticate a client. It is used to fetch information about a login request. To authenticate a client, you typically use the client's ID and secret. In the context of the

@ory/client

library, the client ID and secret are often used to create an instance of the API client. Here's an example:

javascript import { Configuration, OidcApi } from "@ory/client"  const ory = new OidcApi(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )

In this example,

ORY_API_KEY

is the client's secret. This is used to authenticate the client when making requests to the Ory APIs. However, the exact method of client authentication can vary depending on the specific OAuth2 flow you're using. For example, in the client credentials flow, the client ID and secret are sent directly in the token request. In the authorization code flow, the client ID is sent in the authorization request, and the client ID and secret are sent in the token request. For more detailed information on client authentication, you can refer to the [Ory documentation](https://www.ory.sh/docs/hydra/oauth2#client-authentication).

To execute an OAuth2 flow and retrieve user information, you would typically follow these steps: 1. Redirect the user to the authorization server: This is typically done by constructing an authorization URL and redirecting the user to this URL. The authorization URL includes the client ID, requested scopes, and a redirect URI. 2. Handle the authorization response: After the user authenticates and grants consent, the authorization server will redirect the user back to your application with an authorization code. You need to handle this redirect and extract the authorization code from the query parameters. 3. Exchange the authorization code for an access token: You can use the

OAuth2Api.tokenOAuth2ClientCredentials

function to exchange the authorization code for an access token. 4. Fetch the user info: Once you have an access token, you can use the

OidcApi.getOidcWellKnownUserinfo

function to fetch the user info. Here's a basic example of how you might do this:

javascript import { Configuration, OAuth2Api, OidcApi } from "@ory/client"  const oauth2Api = new OAuth2Api(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )  const oidcApi = new OidcApi(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )  // Step 1: Redirect the user to the authorization server // This is typically done in your frontend code  // Step 2: Handle the authorization response // This is typically done in your frontend code  // Step 3: Exchange the authorization code for an access token const { data: tokenResponse } = await oauth2Api.tokenOAuth2ClientCredentials({   tokenOAuth2ClientCredentialsRequest: {     grant_type: "authorization_code",     code: "the-authorization-code",     redirect_uri: "the-redirect-uri",   }, })  // Step 4: Fetch the user info const { data: userInfo } = await oidcApi.getOidcWellKnownUserinfo({   accessToken: tokenResponse.access_token, })

Please note that this is just a basic example and you might need to adjust it according to your specific needs. For more detailed information, you can refer to the [Ory documentation](https://www.ory.sh/docs/hydra/oauth2).

The error message you're seeing typically indicates that the client authentication has failed. This could be due to several reasons: 1. Invalid Client ID: The client ID you're using might not be correct or the client might not exist. You can check your registered clients to make sure the client ID is correct. Here's how you can do it using the Ory Hydra command-line interface:

bash hydra list clients --endpoint <http://127.0.0.1:4445>

[Source](https://www.ory.sh/docs/hydra/self-hosted/gitlab#client-wrong) 2. Missing or Incorrect Client Secret: The error message "passwords do not match" suggests that the client secret might be missing or incorrect. When using the

authorization_code

grant type, you typically need to include the client secret in the request. Make sure you're including the

client_secret

in your request body and that it's correct. 3. Misconfigured OAuth 2.0 Client: The client might be misconfigured. For example, the client might not be configured to use the

authorization_code

grant type. You can check the client's configuration using the following command:

bash ory get oauth2-client {client.id}

[Source](https://www.ory.sh/docs/hydra/debug#refresh-token-flow-fails) 4. Unsupported Authentication Method: The client might be using an unsupported authentication method. Check the

token_endpoint_auth_method

in your client's configuration to make sure it's set to a supported method. If you've checked all of these and you're still seeing the error, there might be an issue with your Ory Hydra setup. In this case, you might want to refer to the [Ory Hydra documentation](https://www.ory.sh/docs/hydra/) or seek help from the Ory community.

No, the

accessToken

in the

OAuth2Api

is not the client secret. The

accessToken

is a token that is used to authenticate API requests. It represents the authorization granted to the client by the user and is used to access protected resources. The client secret, on the other hand, is a secret known only to the client and the authorization server. It is used to authenticate the client to the authorization server. When you're creating an instance of

OAuth2Api

, you're typically using an access token, not a client secret:

javascript const ory = new OAuth2Api(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )

In this example,

ORY_API_KEY

is an access token, not a client secret. When you're exchanging an authorization code for an access token, you typically need to include the client ID and client secret in the request. The client ID and client secret are used to authenticate the client to the authorization server.

No, the

code

parameter in the request is not the client secret. The

code

parameter is the authorization code that your application receives from the authorization server. This code is used in the Authorization Code flow of OAuth2, where it is exchanged for an access token. The client secret is a confidential value that is used by the client (your application) to authenticate itself to the authorization server. It is issued by the authorization server when you register your application and should be kept confidential. In the context of the Authorization Code flow, the client secret is typically included in the request to exchange the authorization code for an access token. Here's an example:

javascript const { data: tokenResponse } = await oauth2Api.tokenOAuth2ClientCredentials({   tokenOAuth2ClientCredentialsRequest: {     grant_type: "authorization_code",     code: "the-authorization-code",     client_id: "your-client-id",     client_secret: "your-client-secret",     redirect_uri: "your-redirect-uri",   }, })

In this example,

your-client-secret

is the client secret. You should replace this with your actual client secret. For more information, you can refer to the [Ory documentation](https://www.ory.sh/docs/oauth2-oidc/authorization-code-flow#step-4-exchange-code-for-token).

To implement a working

/auth

route for OAuth clients in your custom UI, you would typically need to do the following: 1. Create an OAuth2 client: This is a necessary step to enable your application to use OAuth2 flows. You can create an OAuth2 client using the Ory CLI or the Ory console. The client will need to be configured with the appropriate grant types, response types, and redirect URIs. [Source](https://www.ory.sh/docs/oauth2-oidc/overview/oauth2-concepts#creating-oauth2-clients) 2. Initiate the OAuth2 flow: This is typically done by constructing an authorization URL and redirecting the user to this URL. The authorization URL includes the client ID, requested scopes, and a redirect URI. [Source](https://www.ory.sh/docs/getting-started/oauth2-openid/add-oauth2-openid-connect-nodejs-expressjs#add-oauth2-to-expressjs) 3. Handle the authorization response: After the user authenticates and grants consent, the authorization server will redirect the user back to your application with an authorization code. You need to handle this redirect and extract the authorization code from the query parameters. 4. Exchange the authorization code for an access token: You can use the

OAuth2Api.tokenOAuth2ClientCredentials

function to exchange the authorization code for an access token. [Source](https://www.ory.sh/docs/getting-started/oauth2-openid/add-oauth2-openid-connect-nodejs-expressjs#add-oauth2-to-expressjs) 5. Fetch the user info: Once you have an access token, you can use the

OidcApi.getOidcWellKnownUserinfo

function to fetch the user info. [Source](https://www.ory.sh/docs/getting-started/oauth2-openid/add-oauth2-openid-connect-nodejs-expressjs#add-oauth2-to-expressjs) Please note that this is a high-level overview and the exact implementation can vary depending on your specific needs and the specific OAuth2 flow you're using. For more detailed information, you can refer to the [Ory documentation](https://www.ory.sh/docs/).

Sure, here's a step-by-step guide on how to implement an OAuth2 flow using the

@ory/client

library: 1. Create an OAuth2 client: This is typically done using the Ory SDK or REST API. Here's an example of how you can do this using the

@ory/client

library:

javascript
import { Configuration, OidcApi } from "@ory/client"

const ory = new OidcApi(
  new Configuration({
    basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,
    accessToken: process.env.ORY_API_KEY,
  }),
)

export async function createOidcDynamicClient() {
  const { data } = await ory.createOidcDynamicClient({
    oAuth2Client: {
      grant_types: ["authorization_code", "refresh_token"],
      redirect_uris: ["<https://example.com>"],
      scope: "offline openid",
      token_endpoint_auth_method: "client_secret_post",
    },
  })

  console.log(data.registration_access_token) // Write this down, it is only sent once!
  console.log(data.client_id, data.client_secret /* ... */)
}

[Source](https://www.ory.sh/docs/hydra/guides/oauth2-clients#register-oauth2-and-openid-connect-clients) 2. Initiate the OAuth2 flow: This is typically done by constructing an authorization URL and redirecting the user to this URL. The authorization URL includes the client ID, requested scopes, and a redirect URI. This is usually done in your frontend code, not with the

@ory/client

library. 3. Handle the authorization response: After the user authenticates and grants consent, the authorization server will redirect the user back to your application with an authorization code. You need to handle this redirect and extract the authorization code from the query parameters. This is also usually done in your frontend code. 4. Exchange the authorization code for an access token: You can use the

OAuth2Api.tokenOAuth2ClientCredentials

function to exchange the authorization code for an access token. Here's an example:

javascript
import { Configuration, OAuth2Api } from "@ory/client"

const ory = new OAuth2Api(
  new Configuration({
    basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,
    accessToken: process.env.ORY_API_KEY,
  }),
)

export async function exchangeAuthorizationCodeForAccessToken(code, redirectUri) {
  const { data: tokenResponse } = await ory.tokenOAuth2ClientCredentials({
    tokenOAuth2ClientCredentialsRequest: {
      grant_type: "authorization_code",
      code: code,
      redirect_uri: redirectUri,
    },
  })

  return tokenResponse.access_token
}

[Source](https://www.ory.sh/docs/hydra/guides/oauth2-clients#exchange-the-authorization-code-for-an-access-token) 5. Fetch the user info: Once you have an access token, you can use the

OidcApi.getOidcWellKnownUserinfo

function to fetch the user info. Here's an example: ```javascript import { Configuration, OidcApi } from "@ory/client"

Sure, here's a step-by-step guide on how to implement an OAuth2 flow using the

@ory/client

library: 1. Create an OAuth2 client: This is typically done using the Ory SDK or REST API. Here's an example of how you can do this using the

@ory/client

library:

javascript import { Configuration, OidcApi } from "@ory/client"  const ory = new OidcApi(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )  export async function createOidcDynamicClient() {   const { data } = await ory.createOidcDynamicClient({     oAuth2Client: {       grant_types: ["authorization_code", "refresh_token"],       redirect_uris: ["<https://example.com>"],       scope: "offline openid",       token_endpoint_auth_method: "client_secret_post",     },   })    console.log(data.registration_access_token) // Write this down, it is only sent once!   console.log(data.client_id, data.client_secret /* ... */) }

[Source](https://www.ory.sh/docs/hydra/guides/oauth2-clients#register-oauth2-and-openid-connect-clients) 2. Initiate the OAuth2 flow: This is typically done by constructing an authorization URL and redirecting the user to this URL. The authorization URL includes the client ID, requested scopes, and a redirect URI. This is usually done in your frontend code, not with the

@ory/client

library. 3. Handle the authorization response: After the user authenticates and grants consent, the authorization server will redirect the user back to your application with an authorization code. You need to handle this redirect and extract the authorization code from the query parameters. This is also usually done in your frontend code. 4. Exchange the authorization code for an access token: You can use the

OAuth2Api.tokenOAuth2ClientCredentials

function to exchange the authorization code for an access token. Here's an example:

javascript import { Configuration, OAuth2Api } from "@ory/client"  const ory = new OAuth2Api(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )  export async function exchangeAuthorizationCodeForAccessToken(code, redirectUri) {   const { data: tokenResponse } = await ory.tokenOAuth2ClientCredentials({     tokenOAuth2ClientCredentialsRequest: {       grant_type: "authorization_code",       code: code,       redirect_uri: redirectUri,     },   })    return tokenResponse.access_token }

[Source](https://www.ory.sh/docs/hydra/guides/oauth2-clients#exchange-the-authorization-code-for-an-access-token) 5. Fetch the user info: Once you have an access token, you can use the

OidcApi.getOidcWellKnownUserinfo

function to fetch the user info. Here's an example:

javascript import { Configuration, OidcApi } from "@ory/client"  const ory = new OidcApi(   new Configuration({     basePath: `https://${process.env.ORY_PROJECT_SLUG}.<http://projects.oryapis.com|projects.oryapis.com>`,     accessToken: process.env.ORY_API_KEY,   }), )  export async function getUserInfo(accessToken) {   const { data: userInfo } = await ory.getOidcWellKnownUserinfo({     accessToken: accessToken,   })    return userInfo }

[Source](https://www