Upgrading

All commands are executed from the root of the project that imports oidc packages. sed commands are created with GNU sed in mind and might need alternate syntax on non-GNU systems, such as MacOS. Alternatively, GNU sed can be installed on such systems. (coreutils package?).

V2 to V3

TL;DR at the bottom of this chapter is a full sed script containing all automatic steps at once.

As first steps we will:

Download the latest v3 module;
Replace imports in all Go files;
Tidy the module file;

go get -u github.com/zitadel/oidc/v3
find . -type f -name '*.go' | xargs sed -i \
    -e 's/github\.com\/zitadel\/oidc\/v2/github.com\/zitadel\/oidc\/v3/g'
go mod tidy

global

go-jose package

gopkg.in/square/go-jose.v2 import has been changed to github.com/go-jose/go-jose/v3. That means that the imported types are also changed and imports need to be adapted.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/gopkg.in\/square\/go-jose\.v2/github.com\/go-jose\/go-jose\/v3/g'
go mod tidy

op

import "github.com/zitadel/oidc/v3/pkg/op"

Logger

This version of OIDC adds logging to the framework. For this we use the new Go standard library log/slog. (Until v3.12.0 we used x/exp/slog). Mostly OIDC will use error level logs where it's returning an error through an HTTP handler. OIDC errors that are user facing don't carry much context, also for security reasons. With logging we are now able to print the error context, so that developers can more easily find the source of their issues. Previously we just discarded such context.

Most users of the OP package with the storage interface will not experience breaking changes. However, if you use RequestError() directly in your code, you now need to give it a Logger as final argument.

The OpenIDProvider and sub-interfaces like Authorizer and Exchanger got a Logger() method to return the configured logger. This logger is in turn used by AuthRequestError(). You configure the logger with the WithLogger() for the Provider. By default, the slog.Default() is used.

We also provide a new optional interface: LogAuthRequest. If an AuthRequest implements this interface, it is completely passed into the logger after an error. Its LogValue() will be used by slog to print desired fields. This allows omitting sensitive fields you wish not no print. If the interface is not implemented, no AuthRequest details will ever be printed.

Server interface

We've added a new Server interface. This interface is experimental and subject to change. See issue 440 for the motivation and discussion around this new interface. Usage of the new interface is not required, but may be used for advanced scenarios when working with the Storage interface isn't the optimal solution for your app (like we experienced in Zitadel).

AuthRequestError

AuthRequestError now takes the complete Authorizer as final argument, instead of only the encoder. This is to facilitate the use of the Logger as described above.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/\bAuthRequestError(w, r, authReq, err, authorizer.Encoder())/AuthRequestError(w, r, authReq, err, authorizer)/g'

Note: the sed regex might not find all uses if the local variables of the passed arguments use different names.

AccessTokenVerifier

AccessTokenVerifier interface has become a struct type. NewAccessTokenVerifier now returns a pointer to AccessTokenVerifier. Variable and struct fields declarations need to be changed from op.AccessTokenVerifier to *op.AccessTokenVerifier.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/\bop\.AccessTokenVerifier\b/*op.AccessTokenVerifier/g'

JWTProfileVerifier

JWTProfileVerifier interface has become a struct type. NewJWTProfileVerifier now returns a pointer to JWTProfileVerifier. Variable and struct fields declarations need to be changed from op.JWTProfileVerifier to *op.JWTProfileVerifier.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/\bop\.JWTProfileVerifier\b/*op.JWTProfileVerifier/g'

IDTokenHintVerifier

IDTokenHintVerifier interface has become a struct type. NewIDTokenHintVerifier now returns a pointer to IDTokenHintVerifier. Variable and struct fields declarations need to be changed from op.IDTokenHintVerifier to *op.IDTokenHintVerifier.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/\bop\.IDTokenHintVerifier\b/*op.IDTokenHintVerifier/g'

ParseRequestObject

ParseRequestObject no longer returns *oidc.AuthRequest as it already operates on the pointer for the passed authReq argument. As such the argument and the return value were the same pointer. Callers can just use the original *oidc.AuthRequest now.

Endpoint Configuration

Endpoints returned from Configuration interface methods are now pointers. Usually, op.Provider is the main implementation of the Configuration interface. However, if a custom implementation is used, you should be able to update it using the following:

find . -type f -name '*.go' | xargs sed -i \
    -e 's/AuthorizationEndpoint() Endpoint/AuthorizationEndpoint() *Endpoint/g' \
    -e 's/TokenEndpoint() Endpoint/TokenEndpoint() *Endpoint/g' \
    -e 's/IntrospectionEndpoint() Endpoint/IntrospectionEndpoint() *Endpoint/g' \
    -e 's/UserinfoEndpoint() Endpoint/UserinfoEndpoint() *Endpoint/g' \
    -e 's/RevocationEndpoint() Endpoint/RevocationEndpoint() *Endpoint/g' \
    -e 's/EndSessionEndpoint() Endpoint/EndSessionEndpoint() *Endpoint/g' \
    -e 's/KeysEndpoint() Endpoint/KeysEndpoint() *Endpoint/g' \
    -e 's/DeviceAuthorizationEndpoint() Endpoint/DeviceAuthorizationEndpoint() *Endpoint/g'

CreateDiscoveryConfig

CreateDiscoveryConfig now takes a context as first argument. The following adds context.TODO() to the function:

find . -type f -name '*.go' | xargs sed -i \
    -e 's/op\.CreateDiscoveryConfig(/op.CreateDiscoveryConfig(context.TODO(), /g'

It now takes the issuer out of the context using the IssuerFromContext functionality, instead of the config.IssuerFromRequest() method.

CreateRouter

CreateRouter now returns a chi.Router instead of *mux.Router. Usually this function is called when the Provider is constructed and not by package consumers. However, if your project does call this function directly, manual update of the code is required.

DeviceAuthorizationStorage

DeviceAuthorizationStorage dropped the following methods:

GetDeviceAuthorizationByUserCode
CompleteDeviceAuthorization
DenyDeviceAuthorization

These methods proved not to be required from a library point of view. Implementations of a device authorization flow may take care of these calls in a way they see fit.

AuthorizeCodeChallenge

The AuthorizeCodeChallenge function now only takes the CodeVerifier argument, instead of the complete *oidc.AccessTokenRequest.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/op\.AuthorizeCodeChallenge(tokenReq/op.AuthorizeCodeChallenge(tokenReq.CodeVerifier/g'

client

import "github.com/zitadel/oidc/v3/pkg/client"

Context

All client calls now take a context as first argument. The following adds context.TODO() to all the affected functions:

find . -type f -name '*.go' | xargs sed -i \
    -e 's/client\.Discover(/client.Discover(context.TODO(), /g' \
    -e 's/client\.CallTokenEndpoint(/client.CallTokenEndpoint(context.TODO(), /g' \
    -e 's/client\.CallEndSessionEndpoint(/client.CallEndSessionEndpoint(context.TODO(), /g' \
    -e 's/client\.CallRevokeEndpoint(/client.CallRevokeEndpoint(context.TODO(), /g' \
    -e 's/client\.CallTokenExchangeEndpoint(/client.CallTokenExchangeEndpoint(context.TODO(), /g' \
    -e 's/client\.CallDeviceAuthorizationEndpoint(/client.CallDeviceAuthorizationEndpoint(context.TODO(), /g' \
    -e 's/client\.JWTProfileExchange(/client.JWTProfileExchange(context.TODO(), /g'

keyFile type

The keyFile struct type is now exported a KeyFile and returned by the ConfigFromKeyFile and ConfigFromKeyFileData. No changes are needed on the caller's side.

client/profile

The package now defines a new interface TokenSource which compliments the oauth2.TokenSource with a TokenCtx method, so that a context can be explicitly added on each call. Users can migrate to the new method when they wish.

NewJWTProfileTokenSource now takes a context as first argument, so do the related NewJWTProfileTokenSourceFromKeyFile and NewJWTProfileTokenSourceFromKeyFileData. The context is used for the Discovery request.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/profile\.NewJWTProfileTokenSource(/profile.NewJWTProfileTokenSource(context.TODO(), /g' \
    -e 's/profile\.NewJWTProfileTokenSourceFromKeyFileData(/profile.NewJWTProfileTokenSourceFromKeyFileData(context.TODO(), /g' \
    -e 's/profile\.NewJWTProfileTokenSourceFromKeyFile(/profile.NewJWTProfileTokenSourceFromKeyFile(context.TODO(), /g'

client/rp

import "github.com/zitadel/oidc/v3/pkg/client/rs"

Discover

The Discover function has been removed. Use client.Discover instead.

Context

Most rp functions now require a context as first argument. The following adds context.TODO() to the function that have no additional changes. Functions with more complex changes are documented below.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/rp\.NewRelyingPartyOIDC(/rp.NewRelyingPartyOIDC(context.TODO(), /g' \
    -e 's/rp\.EndSession(/rp.EndSession(context.TODO(), /g' \
    -e 's/rp\.RevokeToken(/rp.RevokeToken(context.TODO(), /g' \
    -e 's/rp\.DeviceAuthorization(/rp.DeviceAuthorization(context.TODO(), /g'

Remember to replace context.TODO() with a context that is applicable for your app, where possible.

RefreshAccessToken

Renamed to RefreshTokens;
A context must be passed;
An *oidc.Tokens object is now returned, which included an ID Token if it was returned by the server;
The function is now generic and requires a type argument for the IDTokenClaims implementation inside the returned oidc.Tokens object;

For most use cases *oidc.IDTokenClaims can be used as type argument. A custom implementation of oidc.IDClaims can be used if type-safe access to custom claims is required.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/rp\.RefreshAccessToken(/rp.RefreshTokens[*oidc.IDTokenClaims](context.TODO(), /g'

Users that called tokens.Extra("id_token").(string) and a subsequent VerifyTokens to get the claims, no longer need to do this. The ID token is verified (when present) by RefreshTokens already.

Userinfo

A context must be passed as first argument;
The function is now generic and requires a type argument for the returned user info object;

For most use cases *oidc.UserInfo can be used a type argument. A custom implementation of rp.SubjectGetter can be used if type-safe access to custom claims is required.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/rp\.Userinfo(/rp.Userinfo[*oidc.UserInfo](context.TODO(), /g'

UserinfoCallback

UserinfoCallback has an additional type argument for the UserInfo object. Typically, the type argument can be inferred by the compiler, by the function that is passed. The actual code update cannot be done by a simple sed script and depends on how the caller implemented the function.

IDTokenVerifier

IDTokenVerifier interface has become a struct type. NewIDTokenVerifier now returns a pointer to IDTokenVerifier. Variable and struct fields declarations need to be changed from rp.IDTokenVerifier to *rp.AccessTokenVerifier.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/\brp\.IDTokenVerifier\b/*rp.IDTokenVerifier/g'

client/rs

import "github.com/zitadel/oidc/v3/pkg/client/rs"

NewResourceServer

The NewResourceServerClientCredentials and NewResourceServerJWTProfile constructor functions now take a context as first argument.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/rs\.NewResourceServerClientCredentials(/rs.NewResourceServerClientCredentials(context.TODO(), /g' \
    -e 's/rs\.NewResourceServerJWTProfile(/rs.NewResourceServerJWTProfile(context.TODO(), /g'

Introspect

Introspect is now generic and requires a type argument for the returned introspection response. For most use cases *oidc.IntrospectionResponse can be used as type argument. Any other response type if type-safe access to custom claims is required.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/rs\.Introspect(/rs.Introspect[*oidc.IntrospectionResponse](/g'

client/tokenexchange

The TokenExchanger constructor functions NewTokenExchanger and NewTokenExchangerClientCredentials now take a context as first argument. As well as the ExchangeToken function.

find . -type f -name '*.go' | xargs sed -i \
    -e 's/tokenexchange\.NewTokenExchanger(/tokenexchange.NewTokenExchanger(context.TODO(), /g' \
    -e 's/tokenexchange\.NewTokenExchangerClientCredentials(/tokenexchange.NewTokenExchangerClientCredentials(context.TODO(), /g' \
    -e 's/tokenexchange\.ExchangeToken(/tokenexchange.ExchangeToken(context.TODO(), /g'

oidc

SpaceDelimitedArray

The SpaceDelimitedArray type's Encode() function has been renamed to String() so it implements the fmt.Stringer interface. If the Encode method was called by a package consumer, it should be changed manually.

Verifier

The Verifier interface as been changed into a struct type. The struct type is aliased in the op and rp packages for the specific token use cases. See the relevant section above.

Full script

For the courageous this is the full sed script which combines all the steps described above. It should migrate most of the code in a repository to a more-or-less compilable state, using defaults such as context.TODO() where possible.

Warnings:

Again, this is written for GNU sed not the posix variant.
Assumes imports that use the package names, not aliases.
Do this on a project with version control (e.g. Git), that allows you to rollback if things went wrong.
The script has been tested on the ZITADEL project, but we do not use all affected symbols. Parts of the script are mere guesswork.

go get -u github.com/zitadel/oidc/v3
find . -type f -name '*.go' | xargs sed -i \
    -e 's/github\.com\/zitadel\/oidc\/v2/github.com\/zitadel\/oidc\/v3/g' \
    -e 's/gopkg.in\/square\/go-jose\.v2/github.com\/go-jose\/go-jose\/v3/g' \
    -e 's/\bAuthRequestError(w, r, authReq, err, authorizer.Encoder())/AuthRequestError(w, r, authReq, err, authorizer)/g' \
    -e 's/\bop\.AccessTokenVerifier\b/*op.AccessTokenVerifier/g' \
    -e 's/\bop\.JWTProfileVerifier\b/*op.JWTProfileVerifier/g' \
    -e 's/\bop\.IDTokenHintVerifier\b/*op.IDTokenHintVerifier/g' \
    -e 's/AuthorizationEndpoint() Endpoint/AuthorizationEndpoint() *Endpoint/g' \
    -e 's/TokenEndpoint() Endpoint/TokenEndpoint() *Endpoint/g' \
    -e 's/IntrospectionEndpoint() Endpoint/IntrospectionEndpoint() *Endpoint/g' \
    -e 's/UserinfoEndpoint() Endpoint/UserinfoEndpoint() *Endpoint/g' \
    -e 's/RevocationEndpoint() Endpoint/RevocationEndpoint() *Endpoint/g' \
    -e 's/EndSessionEndpoint() Endpoint/EndSessionEndpoint() *Endpoint/g' \
    -e 's/KeysEndpoint() Endpoint/KeysEndpoint() *Endpoint/g' \
    -e 's/DeviceAuthorizationEndpoint() Endpoint/DeviceAuthorizationEndpoint() *Endpoint/g' \
    -e 's/op\.CreateDiscoveryConfig(/op.CreateDiscoveryConfig(context.TODO(), /g' \
    -e 's/op\.AuthorizeCodeChallenge(tokenReq/op.AuthorizeCodeChallenge(tokenReq.CodeVerifier/g' \
    -e 's/client\.Discover(/client.Discover(context.TODO(), /g' \
    -e 's/client\.CallTokenEndpoint(/client.CallTokenEndpoint(context.TODO(), /g' \
    -e 's/client\.CallEndSessionEndpoint(/client.CallEndSessionEndpoint(context.TODO(), /g' \
    -e 's/client\.CallRevokeEndpoint(/client.CallRevokeEndpoint(context.TODO(), /g' \
    -e 's/client\.CallTokenExchangeEndpoint(/client.CallTokenExchangeEndpoint(context.TODO(), /g' \
    -e 's/client\.CallDeviceAuthorizationEndpoint(/client.CallDeviceAuthorizationEndpoint(context.TODO(), /g' \
    -e 's/client\.JWTProfileExchange(/client.JWTProfileExchange(context.TODO(), /g' \
    -e 's/profile\.NewJWTProfileTokenSource(/profile.NewJWTProfileTokenSource(context.TODO(), /g' \
    -e 's/profile\.NewJWTProfileTokenSourceFromKeyFileData(/profile.NewJWTProfileTokenSourceFromKeyFileData(context.TODO(), /g' \
    -e 's/profile\.NewJWTProfileTokenSourceFromKeyFile(/profile.NewJWTProfileTokenSourceFromKeyFile(context.TODO(), /g' \
    -e 's/rp\.NewRelyingPartyOIDC(/rp.NewRelyingPartyOIDC(context.TODO(), /g' \
    -e 's/rp\.EndSession(/rp.EndSession(context.TODO(), /g' \
    -e 's/rp\.RevokeToken(/rp.RevokeToken(context.TODO(), /g' \
    -e 's/rp\.DeviceAuthorization(/rp.DeviceAuthorization(context.TODO(), /g' \
    -e 's/rp\.RefreshAccessToken(/rp.RefreshTokens[*oidc.IDTokenClaims](context.TODO(), /g' \
    -e 's/rp\.Userinfo(/rp.Userinfo[*oidc.UserInfo](context.TODO(), /g' \
    -e 's/\brp\.IDTokenVerifier\b/*rp.IDTokenVerifier/g' \
    -e 's/rs\.NewResourceServerClientCredentials(/rs.NewResourceServerClientCredentials(context.TODO(), /g' \
    -e 's/rs\.NewResourceServerJWTProfile(/rs.NewResourceServerJWTProfile(context.TODO(), /g' \
    -e 's/rs\.Introspect(/rs.Introspect[*oidc.IntrospectionResponse](/g' \
    -e 's/tokenexchange\.NewTokenExchanger(/tokenexchange.NewTokenExchanger(context.TODO(), /g' \
    -e 's/tokenexchange\.NewTokenExchangerClientCredentials(/tokenexchange.NewTokenExchangerClientCredentials(context.TODO(), /g' \
    -e 's/tokenexchange\.ExchangeToken(/tokenexchange.ExchangeToken(context.TODO(), /g'
go mod tidy

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Upgrading

V2 to V3

global

go-jose package

op

Logger

Server interface

AuthRequestError

AccessTokenVerifier

JWTProfileVerifier

IDTokenHintVerifier

ParseRequestObject

Endpoint Configuration

CreateDiscoveryConfig

CreateRouter

DeviceAuthorizationStorage

AuthorizeCodeChallenge

client

Context

keyFile type

client/profile

client/rp

Discover

Context

RefreshAccessToken

Userinfo

UserinfoCallback

IDTokenVerifier

client/rs

NewResourceServer

Introspect

client/tokenexchange

oidc

SpaceDelimitedArray

Verifier

Full script

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UPGRADING.md

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File metadata and controls

Upgrading

V2 to V3

global

go-jose package

op

Logger

Server interface

AuthRequestError

AccessTokenVerifier

JWTProfileVerifier

IDTokenHintVerifier

ParseRequestObject

Endpoint Configuration

CreateDiscoveryConfig

CreateRouter

DeviceAuthorizationStorage

AuthorizeCodeChallenge

client

Context

keyFile type

client/profile

client/rp

Discover

Context

RefreshAccessToken

Userinfo

UserinfoCallback

IDTokenVerifier

client/rs

NewResourceServer

Introspect

client/tokenexchange

oidc

SpaceDelimitedArray

Verifier

Full script