Access Manager v3 API for PubNub C# SDK
Access Manager allows you to enforce security controls for client access to resources within the PubNub Platform. With Access Manager v3, your servers can grant their clients tokens with embedded permissions that provide access to individual PubNub resources:
- For a limited period of time.
- Through resource lists or patterns (regular expressions).
- In a single API request, even if permission levels differ (
read
tochannel1
andwrite
tochannel2
).
You can add the authorizedUuid
parameter to the grant request to restrict the token usage to one client with a given userId
. Once specified, only this authorizedUuid
will be able to use the token to make API requests for the specified resources, according to permissions given in the grant request.
User ID / UUID
User ID is also referred to as UUID
/uuid
in some APIs and server responses but holds the value of the userId
parameter you set during initialization.
Grant Token
Requires Access Manager add-on
This method requires that the Access Manager add-on is enabled for your key in the Admin Portal. Read the support page on enabling add-on features on your keys.
The GrantToken()
method generates a time-limited authorization token with an embedded access control list. The token defines time to live (TTL
), AuthorizedUuid
, and a set of permissions giving access to one or more resources:
Channels
ChannelGroups
Uuids
(other users' object metadata, such as their names or avatars)
Only this AuthorizedUuid
will be able to use the token with the defined permissions. The authorized client will send the token to PubNub with each request until the token's TTL
expires. Any unauthorized request or a request made with an invalid token will return a 403
with a respective error message.
Permissions
The grant request allows your server to securely grant your clients access to the resources within the PubNub Platform. There is a limited set of operations the clients can perform on every resource:
Resource | Permissions |
---|---|
Channels | read , write , get , manage , update , join , delete |
ChannelGroups | read , manage |
Uuids | get , update , delete |
For permissions and API operations mapping, refer to Manage Permissions with Access Manager v3.
TTL
The ttl
(time to live) parameter is the number of minutes before the granted permissions expire. The client will require a new token to be granted before expiration to ensure continued access. ttl
is a required parameter for every grant call and there is no default value set for it. The max value for ttl
is 43,200 (30 days).
danger
ttl
valueFor security reasons, it's recommended to set ttl
between 10
and 60
, and create a new token before this ttl
elapses.
For more details, see TTL in Access Manager v3.
RegEx
If you prefer to specify permissions by setting patterns, rather than listing all resources one by one, you can use regular expressions. To do this, define RegEx permissions for a given resource type in the grant request.
For more details, see RegEx in Access Manager v3.
Authorized UUID
Setting an AuthorizedUuid
in the token helps you specify which client device should use this token in every request to PubNub. This will ensure that all requests to PubNub are authorized before PubNub processes them. If AuthorizedUuid
isn't specified during the grant request, the token can be used by any client with any UUID. It's recommended to restrict tokens to a single AuthorizedUuid
to prevent impersonation.
For more details, see Authorized UUID in Access Manager v3.
Method(s)
pubnub.GrantToken()
.TTL(int)
.Meta(Dictionary<string, object>)
.AuthorizedUuid(string)
.Resources(PNTokenResources)
.Patterns(PNTokenPatterns)
.QueryParam(Dictionary<string, object>)
Parameter | Type | Required | Default | Description |
---|---|---|---|---|
TTL | int | Yes | n/a | Total number of minutes for which the token is valid.
|
AuthorizedUuid | string | Optional | n/a | Single Uuid which is authorized to use the token to make API requests to PubNub. |
Resources | PNTokenResources | Optional | n/a | Object containing channel, channel group, and UUID metadata permissions. |
Patterns | PNTokenPatterns | Optional | n/a | Object containing permissions to apply to all channel, channel group, and UUID metadata matching the RegEx pattern. |
Meta | Dictionary<string, object> | Optional | n/a | Extra metadata to be published with the request. Values must be scalar only; arrays or objects aren't supported. |
Execute | PNCallback | Optional | n/a | PNCallback of type PNAccessManagerTokenResult . |
ExecuteAsync | None | Optional | n/a | Returns PNResult<PNAccessManagerTokenResult> . |
PNTokenResources
contains the following properties:
Parameter | Type | Required | Default | Description |
---|---|---|---|---|
Channels | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing channel permissions. |
ChannelGroups | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing channel group permissions. |
Uuids | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing UUID metadata permissions. |
PNTokenPatterns
contains the following properties:
Parameter | Type | Required | Default | Description |
---|---|---|---|---|
Channels | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing permissions to apply to all channels matching the RegEx pattern. |
ChannelGroups | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing permissions to apply to all channel groups matching the RegEx pattern. |
Uuids | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing permissions to apply to all UUID metadata matching the RegEx pattern. |
PNTokenAuthValues
contains the following properties:
Property Name | Type | Description |
---|---|---|
Read | bool | Read permission. Applies to Subscribe, History, and Presence. |
Write | bool | Write permission. Applies to Publish. |
Manage | bool | Manage permission. Applies to Channel Groups and App Context. |
Delete | bool | Delete permission. Applies to History and App Context. |
Get | bool | Get permission. Applies to App Context. |
Update | bool | Update permission. Applies to App Context. |
Join | bool | Join permission. Applies to App Context. |
Required key/value mappings
For a successful grant request, you must specify permissions for at least one UUID, channel, or group, either as a resource list or as a pattern (RegEx).
Basic Usage
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUuid("my-authorized-uuid")
.Resources(new PNTokenResources()
{
Channels = new Dictionary<string, PNTokenAuthValues>() {
{ "my-channel", new PNTokenAuthValues() { Read = true } } } // False to disallow
})
.ExecuteAsync();
PNAccessManagerTokenResult grantTokenResult = grantTokenResponse.Result;
PNStatus grantTokenStatus = grantTokenResponse.Status;
// PNAccessManagerTokenResult is a parsed and abstracted response from the server
if (!grantTokenStatus.Error && grantTokenResult != null)
{
Console.WriteLine(pubnub.JsonPluggableLibrary.SerializeToJsonString(grantTokenResult));
show all 20 linesReturns
The GrantToken()
operation returns PNResult<PNAccessManagerTokenResult>
which contains the following properties:
Property | Type | Description |
---|---|---|
Result | PNAccessManagerTokenResult | Returns a PNAccessManagerTokenResult object. |
Status | PNStatus | Returns a PNStatus object. |
PNAccessManagerTokenResult
contains the following properties:
Parameter | Type | Required | Description |
---|---|---|---|
Token | String | Yes | Current token with embedded permissions. |
{ "Token":"p0thisAkFl043rhDdHRsCkNyZXisRGNoYW6hanNlY3JldAFDZ3Jwsample3KgQ3NwY6BDcGF0pERjaGFuoENnctokenVzcqBDc3BjoERtZXRhoENzaWdYIGOAeTyWGJI"}
Other Examples
Grant an authorized client different levels of access to various resources in a single call
The code below grants my-authorized-uuid
:
- Read access to
channel-a
,channel-group-b
, and get touuid-c
. - Read/write access to
channel-b
,channel-c
,channel-d
, and get/update touuid-d
.
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUuid("my-authorized-uuid")
.Resources(new PNTokenResources()
{
Channels = new Dictionary<string, PNTokenAuthValues>() {
{ "channel-a", new PNTokenAuthValues() { Read = true } },
{ "channel-b", new PNTokenAuthValues() { Read = true, Write = true } },
{ "channel-c", new PNTokenAuthValues() { Read = true, Write = true } },
{ "channel-d", new PNTokenAuthValues() { Read = true, Write = true } }},
ChannelGroups = new Dictionary<string, PNTokenAuthValues>() {
{ "channel-group-b", new PNTokenAuthValues() { Read = true } } },
Uuids = new Dictionary<string, PNTokenAuthValues>() {
{ "uuid-c", new PNTokenAuthValues() { Get = true } },
{ "uuid-d", new PNTokenAuthValues() { Get = true, Update = true } }}
show all 27 linesGrant an authorized client read access to multiple channels using RegEx
The code below grants my-authorized-uuid
read access to all channels that match the channel-[A-Za-z0-9]
RegEx pattern.
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUuid("my-authorized-uuid")
.Patterns(new PNTokenPatterns()
{
Channels = new Dictionary<string, PNTokenAuthValues>() {
{ "channel-[A-Za-z0-9]", new PNTokenAuthValues() { Read = true } }}
})
.ExecuteAsync();
PNAccessManagerTokenResult grantTokenResult = grantTokenResponse.Result;
PNStatus grantTokenStatus = grantTokenResponse.Status;
if (!grantTokenStatus.Error && grantTokenResult != null)
{
Console.WriteLine(pubnub.JsonPluggableLibrary.SerializeToJsonString(grantTokenResult));
}
show all 20 linesGrant an authorized client different levels of access to various resources and read access to channels using RegEx in a single call
The code below grants the my-authorized-uuid
:
- Read access to
channel-a
,channel-group-b
, and get touuid-c
. - Read/write access to
channel-b
,channel-c
,channel-d
, and get/update touuid-d
. - Read access to all channels that match the
channel-[A-Za-z0-9]
RegEx pattern.
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUuid("my-authorized-uuid")
.Resources(new PNTokenResources()
{
Channels = new Dictionary<string, PNTokenAuthValues>() {
{ "channel-a", new PNTokenAuthValues() { Read = true } },
{ "channel-b", new PNTokenAuthValues() { Read = true, Write = true } },
{ "channel-c", new PNTokenAuthValues() { Read = true, Write = true } },
{ "channel-d", new PNTokenAuthValues() { Read = true, Write = true } }},
ChannelGroups = new Dictionary<string, PNTokenAuthValues>() {
{ "channel-group-b", new PNTokenAuthValues() { Read = true } } },
Uuids = new Dictionary<string, PNTokenAuthValues>() {
{ "uuid-c", new PNTokenAuthValues() { Get = true } },
{ "uuid-d", new PNTokenAuthValues() { Get = true, Update = true } }}
show all 32 linesError responses
If you submit an invalid request, the server returns the 400
error status code with a descriptive message informing which of the provided arguments is missing or incorrect. These can include, for example, issues with a RegEx, a timestamp, or permissions.
Grant Token - Spaces & Users
Requires Access Manager add-on
This method requires that the Access Manager add-on is enabled for your key in the Admin Portal. Read the support page on enabling add-on features on your keys.
The GrantToken()
method generates a time-limited authorization token with an embedded access control list. The token defines time to live (TTL
), AuthorizedUserId
, and a set of permissions giving access to one or more resources:
Spaces
Users
(other users' metadata, such as their names or avatars)
Only this AuthorizedUserId
will be able to use the token with the defined permissions. The authorized client will send the token to PubNub with each request until the token's TTL
expires. Any unauthorized request or a request made with an invalid token will return a 403
with a respective error message.
Permissions
The grant request allows your server to securely grant your clients access to the resources within the PubNub Platform. There is a limited set of operations the clients can perform on every resource:
Resource | Permissions |
---|---|
Spaces | read , write , get , manage , update , join , delete |
Users | get , update , delete |
For permissions and API operations mapping, refer to Manage Permissions with Access Manager v3.
TTL
The TTL
(time to live) parameter is the number of minutes before the granted permissions expire. The client will require a new token to be granted before expiration to ensure continued access. ttl
is a required parameter for every grant call and there is no default value set for it. The max value for ttl
is 43,200 (30 days).
danger
TTL
valueFor security reasons, it's recommended to set TTL
between 10
and 60
, and create a new token before this TTL
elapses.
For more details, see TTL in Access Manager v3.
RegEx
If you prefer to specify permissions by setting patterns, rather than listing all resources one by one, you can use regular expressions. To do this, set RegEx permissions as Patterns
before making a grant request.
For more details, see RegEx in Access Manager v3.
Authorized User ID
Setting an AuthorizedUserId
in the token helps you specify which client device should use this token in every request to PubNub. This will ensure that all requests to PubNub are authorized before PubNub processes them. If AuthorizedUserId
isn't specified during the grant request, the token can be used by any client with any UserId
. It's recommended to restrict tokens to a single AuthorizedUserId
to prevent impersonation.
For more details, see Authorized UUID in Access Manager v3.
Method(s)
pubnub.GrantToken()
.TTL(int)
.Meta(Dictionary<string, object>)
.AuthorizedUserId(string)
.Resources(PNTokenResources)
.Patterns(PNTokenPatterns)
.QueryParam(Dictionary<string, object>)
Parameter | Type | Required | Default | Description |
---|---|---|---|---|
TTL | int | Yes | n/a | Total number of minutes for which the token is valid.
|
AuthorizedUserId | string | Optional | n/a | Single Uuid which is authorized to use the token to make API requests to PubNub. |
Resources | PNTokenResources | Optional | n/a | Object containing channel, channel group, and UUID metadata permissions. |
Patterns | PNTokenPatterns | Optional | n/a | Object containing permissions to apply to all channel, channel group, and UUID metadata matching the RegEx pattern. |
Meta | Dictionary<string, object> | Optional | n/a | Extra metadata to be published with the request. Values must be scalar only; arrays or objects aren't supported. |
Execute | PNCallback | Optional | n/a | PNCallback of type PNAccessManagerTokenResult . |
ExecuteAsync | None | Optional | n/a | Returns PNResult<PNAccessManagerTokenResult> . |
PNTokenResources
contains the following properties:
Parameter | Type | Required | Default | Description |
---|---|---|---|---|
Spaces | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing Space permissions. |
Users | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing User metadata permissions. |
PNTokenPatterns
contains the following properties:
Parameter | Type | Required | Default | Description |
---|---|---|---|---|
Spaces | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing permissions to apply to all Spaces matching the RegEx pattern. |
Users | Dictionary<string, PNTokenAuthValues> | Optional | n/a | Dictionary object containing permissions to apply to all User metadata matching the RegEx pattern. |
PNTokenAuthValues
contains the following properties:
Property Name | Type | Description |
---|---|---|
Read | bool | Read permission. |
Write | bool | Write permission. |
Manage | bool | Manage permission. |
Delete | bool | Delete permission. |
Get | bool | Get permission. |
Update | bool | Update permission. |
Join | bool | Join permission. |
Required key/value mappings
For a successful grant request, you must specify permissions for at least one User or Space either as a resource list or as a pattern (RegEx).
Basic Usage
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUserId("my-authorized-userId")
.Resources(new PNTokenResources()
{
Spaces = new Dictionary<string, PNTokenAuthValues>() {
{ "my-space", new PNTokenAuthValues() { Read = true } } } // False to disallow
})
.ExecuteAsync();
PNAccessManagerTokenResult grantTokenResult = grantTokenResponse.Result;
PNStatus grantTokenStatus = grantTokenResponse.Status;
// PNAccessManagerTokenResult is a parsed and abstracted response from the server
if (!grantTokenStatus.Error && grantTokenResult != null)
{
Console.WriteLine(pubnub.JsonPluggableLibrary.SerializeToJsonString(grantTokenResult));
show all 20 linesReturns
The GrantToken()
operation returns PNResult<PNAccessManagerTokenResult>
which contains the following properties:
Property | Type | Description |
---|---|---|
Result | PNAccessManagerTokenResult | Returns a PNAccessManagerTokenResult object. |
Status | PNStatus | Returns a PNStatus object. |
PNAccessManagerTokenResult
contains the following properties:
Parameter | Type | Required | Description |
---|---|---|---|
Token | String | Yes | Current token with embedded permissions. |
{ "Token":"p0thisAkFl043rhDdHRsCkNyZXisRGNoYW6hanNlY3JldAFDZ3Jwsample3KgQ3NwY6BDcGF0pERjaGFuoENnctokenVzcqBDc3BjoERtZXRhoENzaWdYIGOAeTyWGJI"}
Other Examples
Grant an authorized client different levels of access to various resources in a single call
The code below grants my-authorized-userId
:
- Read access to
space-a
, and get touserId-c
. - Read/write access to
space-b
,space-c
,space-d
, and get/update touserId-d
.
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUserId("my-authorized-userId")
.Resources(new PNTokenResources()
{
Spaces = new Dictionary<string, PNTokenAuthValues>() {
{ "space-a", new PNTokenAuthValues() { Read = true } },
{ "space-b", new PNTokenAuthValues() { Read = true, Write = true } },
{ "space-c", new PNTokenAuthValues() { Read = true, Write = true } },
{ "space-d", new PNTokenAuthValues() { Read = true, Write = true } }},
Users = new Dictionary<string, PNTokenAuthValues>() {
{ "user-c", new PNTokenAuthValues() { Get = true } },
{ "user-d", new PNTokenAuthValues() { Get = true, Update = true } }}
})
.ExecuteAsync();
show all 25 linesGrant an authorized client read access to multiple spaces using RegEx
The code below grants my-authorized-userId
read access to all channels that match the space-[A-Za-z0-9]
RegEx pattern.
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUserId("my-authorized-userId")
.Patterns(new PNTokenPatterns()
{
Spaces = new Dictionary<string, PNTokenAuthValues>() {
{ "space-[A-Za-z0-9]", new PNTokenAuthValues() { Read = true } }}
})
.ExecuteAsync();
PNAccessManagerTokenResult grantTokenResult = grantTokenResponse.Result;
PNStatus grantTokenStatus = grantTokenResponse.Status;
if (!grantTokenStatus.Error && grantTokenResult != null)
{
Console.WriteLine(pubnub.JsonPluggableLibrary.SerializeToJsonString(grantTokenResult));
}
show all 20 linesGrant an authorized client different levels of access to various resources and read access to spaces using RegEx in a single call
The code below grants the my-authorized-userId
:
- Read access to
space-a
anduserId-c
. - Read/write access to
space-b
,space-c
,space-d
, and get/update touserId-d
. - Read access to all channels that match the
space-[A-Za-z0-9]
RegEx pattern.
PNResult<PNAccessManagerTokenResult> grantTokenResponse = await pubnub.GrantToken()
.TTL(15)
.AuthorizedUserId("my-authorized-userId")
.Resources(new PNTokenResources()
{
Spaces = new Dictionary<string, PNTokenAuthValues>() {
{ "space-a", new PNTokenAuthValues() { Read = true } },
{ "space-b", new PNTokenAuthValues() { Read = true, Write = true } },
{ "space-c", new PNTokenAuthValues() { Read = true, Write = true } },
{ "space-d", new PNTokenAuthValues() { Read = true, Write = true } }},
Users = new Dictionary<string, PNTokenAuthValues>() {
{ "user-c", new PNTokenAuthValues() { Get = true } },
{ "user-d", new PNTokenAuthValues() { Get = true, Update = true } }}
})
.Patterns(new PNTokenPatterns()
show all 30 linesError responses
If you submit an invalid request, the server returns the 400
error status code with a descriptive message informing which of the provided arguments is missing or incorrect. These can include, for example, issues with a RegEx, a timestamp, or permissions.
Revoke Token
Requires Access Manager add-on
This method requires that the Access Manager add-on is enabled for your key in the Admin Portal. Read the support page on enabling add-on features on your keys.
Enable token revoke
To revoke tokens, you must first enable this feature on the Admin Portal. To do that, navigate to your app's keyset and mark the Revoke v3 Token checkbox in the ACCESS MANAGER section.
The RevokeToken()
method allows you to disable an existing token and revoke all permissions embedded within. You can only revoke a valid token previously obtained using the GrantToken()
method.
Use this method for tokens with TTL
less than or equal to 30 days. If you need to revoke a token with a longer TTL
, contact support.
For more information, refer to Revoke permissions.
Method(s)
pubnub.RevokeToken()
.Token(string)
.QueryParam(Dictionary<string, object>)
Parameter | Type | Required | Default | Description |
---|---|---|---|---|
Token | string | Yes | n/a | Existing token with embedded permissions. |
Execute | PNCallback | Optional | n/a | PNCallback of type PNAccessManagerRevokeTokenResult . |
ExecuteAsync | None | Optional | n/a | Returns PNResult<PNAccessManagerRevokeTokenResult> . |
Basic Usage
PNResult<PNAccessManagerRevokeTokenResult> revokeTokenResponse = await pubnub
.RevokeToken()
.Token("p0thisAkFl043rhDdHRsCkNDcGF0pERjaGFuoENnctokenVzcqBDc3BjoERtZXRhoENzaWdYIGOAeTyWGJI")
.ExecuteAsync();
PNAccessManagerRevokeTokenResult revokeTokenResult = revokeTokenResponse.Result;
PNStatus revokeTokenStatus = revokeTokenResponse.Status;
if (!revokeTokenStatus.Error && revokeTokenResult != null)
{
Console.WriteLine("Revoke token success");
}
else
{
Console.WriteLine(pubnub.JsonPluggableLibrary.SerializeToJsonString(revokeTokenStatus));
}
Returns
The RevokeToken()
operation returns PNResult<PNAccessManagerRevokeTokenResult>
which contains the following properties:
Property | Type | Description |
---|---|---|
Result | PNAccessManagerRevokeTokenResult | Returns an empty PNAccessManagerRevokeTokenResult object when the token revocation request is successful. |
Status | PNStatus | Returns a PNStatus object for operations ending in success or failure. |
Error Responses
If you submit an invalid request, the server returns an error status code with a descriptive message informing which of the provided arguments is missing or incorrect. Depending on the root cause, this operation may return the following errors:
400 Bad Request
403 Forbidden
503 Service Unavailable
Parse Token
The ParseToken()
method decodes an existing token and returns the object containing permissions embedded in that token. The client can use this method for debugging to check the permissions to the resources or find out the token's TTL
details.
Method(s)
ParseToken(String token)
Parameter | Type | Required | Description |
---|---|---|---|
token | String | Yes | Current token with embedded permissions. |
Basic Usage
pubnub.ParseToken("p0thisAkFl043rhDdHRsCkNyZXisRGNoYW6hanNlY3JldAFDZ3Jwsample3KgQ3NwY6BDcGF0pERjaGFuoENnctokenVzcqBDc3BjoERtZXRhoENzaWdYIGOAeTyWGJI")
Returns
{
"Version":2,
"Timestamp":1619718521,
"TTL":15,
"AuthorizedUuid":"my_uuid",
"Resources":{
"Uuids":{
"uuid-id":{
"Read":true,
"Write":true,
"Manage":true,
"Delete":true,
"Get":true,
"Update":true,
"Join":true
show all 76 linesError Responses
If you receive an error while parsing the token, it may suggest that the token is damaged. In that case, request the server to issue a new one.
Set Token
The SetAuthToken()
method is used by the client devices to update the authentication token granted by the server.
Method(s)
SetAuthToken(String token)
Parameter | Type | Required | Description |
---|---|---|---|
token | String | Yes | Current token with embedded permissions. |
Basic Usage
pubnub.SetAuthToken("p0thisAkFl043rhDdHRsCkNyZXisRGNoYW6hanNlY3JldAFDZ3Jwsample3KgQ3NwY6BDcGF0pERjaGFuoENnctokenVzcqBDc3BjoERtZXRhoENzaWdYIGOAeTyWGJI")
Returns
This method doesn't return any response value.