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Tip

title	Before you begin

Create a user with Internal/creator and Internal/publisher roles using https://<OBKM_HOSTNAME>:9446/carbon. To create users and roles, see configuring users and roles, which elaborates the steps to create the user as the API publisher.
Set endpoints in the velocity_template.xml file.
Configure sequence files.

Configuring

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In the WSO2 Open Banking Berlin v1.1, it is mandatory to configure APIs for:

Accounts API v1.1
Payments API v1.1

Given below is the general procedure to configure and publish an API.

Tip
Create a user in order to configure API. For more information on creating a user, refer Configuring users and roles. If one version of the API is already deployed, you may create a new version of it instead of deploying a new API. For more information, see create a new version for an existing API.

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Multiexcerpt include

MultiExcerptName	ConfiguringAPIs
PageWithExcerpt	Try Local Setup

Configuring the velocity_template.xml file

velocity_template file checks the deployed specification. The velocity_template.xml file in the <WSO2_OBAM_HOME>/repository/resources/api_templates/velocity_template.xml file, is by default configured to support berlin specification with the following handler.

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the velocity_template.xml file

velocity_template file checks the deployed specification. The velocity_template.xml file in the <WSO2_OBAM_HOME>/repository/resources/api_templates/velocity_template.xml file, is by default configured to support berlin specification with the following handler.

Code Block

language	xml

<handler class="com.wso2.finance.open.banking.berlin.consent.enforcement.ConsentEnforcementHandler">
    <property name="accountValidationUrl" value="https://<OBKM_HOST>:9446/consent/berlin110/accounts-validation"/>
    <property name="accountValidationUrlkeyStore" value="https:./repository//<OBKM_HOST>:9446/consent/berlin110/accounts-validation"/>
    <property name="keyStore" value="./repository/resources/resources/security/wso2carbon.jks"/>
    <property name="password" value="wso2carbon"/>
    <property name="alias" value="wso2carbon"/>
</handler>

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Configuring sequence files

Sequence files for Accounts and Payments must be updated separately in the <WSO2_OBAM_HOME>/repository/resources/finance/apis / berlin-group.org / <Name of the API> . Update the value of the <OBKM_HOSTNAME> with the hostname of the WSO2 Open Banking Key Manager server.

By default, WSO2 Open Banking API Manager includes a mock bank backend, which is configured by default in the In sequences. Ideally, the two occurrences of https://<OBAM_HOSTNAME>:9443/open-banking/services/accounts/accountservice should be replaced by the core banking system's API endpoints corresponding to the production, and sandbox environments respectively. For more information, see Integrating Core Banking System for Berlin.

xmlAccountsAPIPaymentsAPI

Code Blocklocaltabgroup

language

Localtab

title

Accounts API

Code Block

language	xml

<sequence xmlns="http://ws.apache.org/ns/synapse" name="accounts-dynamic-endpoint-insequence-2.0.0">
    <property name="endpointURI" expression="get-property('To')"/>
    <header name="TPP-Unique-ID" expression="get-property('api.ut.consumerKey')" scope="transport"/>
    <filter regex=".*\/consents.*" source="$ctx:endpointURI">
        <then>
            <property name="resourcepath" scope="default" type="STRING" value=""/>
            <property expression="get-property('resourcepath')" name="REST_URL_POSTFIX" scope="axis2" type="STRING"/>
            <header name="To" expression="fn:concat('https://<OBKM_HOST>:9446/consent/berlin110' , get-property('api.ut.resource'))"/>

            <rewrite>
                <rewriterule>
                    <action type="replace" regex="\/consents" value="\/accounts" fragment="path"/>
                </rewriterule>
            </rewrite>

        </then>
        <else>
            <filter source="$ctx:AM_KEY_TYPE" regex="PRODUCTION">
                <then>
                    <header name="To" value="https://<OBAM_HOST>:9443/open-banking-berlin/services/accounts"/>
                </then>
                <else>
                    <header name="To" value="https://<OBAM_HOST>:9443/open-banking-berlin/services/accounts"/>
                </else>
            </filter>
        </else>
    </filter>
    <property expression="get-property('To')" name="ENDPOINT_ADDRESS"/>
</sequence>

Localtab

title	Payments API

Code Block

language	xml

title

<sequence xmlns="http://ws.apache.org/ns/synapse" name="payments-dynamic-endpoint-insequence-2.0.0">
    <property name="endpointURI" expression="get-property('To')"/>
    <filter source="$ctx:endpointURI" regex=".*payments.*">
        <then>
            <header name="TPP-Unique-ID" scope="transport" expression="get-property('api.ut.consumerKey')"/>
            <filter source="get-property('api.ut.HTTP_METHOD')" regex="POST">
                <then>
                    <header name="To" value="https://<OBKM_HOST>:9446/consent/berlin110/payments"/>
                    <filter source="$ctx:endpointURI" regex="^((?!\/bulk-payments).)*$">
                        <then>
                            <payloadFactory media-type="json">
                                <format>[$1]</format>
                                <args>
                                    <arg evaluator="json" expression="$"/>
                                </args>
                            </payloadFactory>
                        </then>
                    </filter>
                </then>
                <else>
                    <filter source="get-property('api.ut.HTTP_METHOD')" regex="GET">
                        <then>
                            <property name="resourcePath" scope="default" type="STRING" value=""/>
                            <property expression="get-property('resourcePath')" name="REST_URL_POSTFIX" scope="axis2"
                                      type="STRING"/>

                            <header name="To"
                                    expression="fn:concat('https://<OBKM_HOST>:9446/consent/berlin110', get-property('api.ut.resource'))"/>

                            <rewrite>
                              <rewriterule>
                                <action type="replace" regex="\/payments\/sepa-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/payments\/instant-sepa-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/payments\/target-2-payments" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/payments\/cross-border-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/bulk-payments\/sepa-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/bulk-payments\/instant-sepa-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/bulk-payments\/target-2-payments" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/bulk-payments\/cross-border-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/periodic-payments\/sepa-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/periodic-payments\/instant-sepa-credit-transfers" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/periodic-payments\/target-2-payments" value="\/payments" fragment="path"/>
                                <action type="replace" regex="\/periodic-payments\/cross-border-credit-transfers" value="\/payments" fragment="path"/>
                              </rewriterule>
                            </rewrite>

                        </then>
                    </filter>

                </else>
            </filter>

        </then>
        <else>
            <filter source="$ctx:AM_KEY_TYPE" regex="PRODUCTION">
                <then>
                    <header name="To" value="https://<OBAM_HOST>:9443/open-banking/services/payments/paymentservice"/>
                </then>
                <else>
                    <header name="To" value="https://<OBAM_HOST>:9443/open-banking/services/payments/paymentservice"/>
                </else>
            </filter>
        </else>
    </filter>
    <property name="ENDPOINT_ADDRESS" expression="get-property('To')"/>

</sequence>

Excerpt

hidden	true

Create a new version for an existing API

In the API Publisher (https://<OBAM_HOSTNAME>:9443/publisher), click the API thumbnail to view the API overview.

Image Removed

Click CREATE NEW VERSION.

Tip
Versioning allows several APIs to share the same scope.

Define the new version and click Done.

Note
The API version will be used in the `velocity-template.xml` file to configure the corresponding URLs, therefore it is advised to define the version as v1.0, v2.0, v3.0 or v3.1

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Click on the newly created API and click EDIT API.

Under API DEFINITION, click Import.

Select the swagger definition of the new API version from the <WSO2_OBAM

</sequence>

Configuring an API

In the WSO2 Open Banking Berlin v1.1, it is mandatory to configure APIs for:

Accounts API v1.1
Payments API v1.1

Given below is the general procedure to configure and publish an API.

Tip
Create a user in order to configure API. For more information on creating a user, refer Configuring users and roles. If one version of the API is already deployed, you may create a new version of it instead of deploying a new API. For more information, see create a new version for an existing API.

Anchor

	WumUpdateForRequestValidationBG
	WumUpdateForRequestValidationBG

Multiexcerpt

MultiExcerptName	ConfiguringAPIs

Sign in to the API Publisher ( https:// localhost:9443/publisher ) with the a user whose roles include Internal/publisher. Follow the steps given below:
Click ADD NEW API > I have an existing API.
Select the Swagger definition from <WSO2_OB_APIM_HOME>/repository/resources/finance/apis and configure the properties according to the open-banking specification. Find more information from the table given .

Click Start Creating.
Click Next: Implement to navigate to the next level.
Expand Managed API, and use the table to select the relevant Endpoint Type from the drop-down list.
Check Select a message mediation policy to be executed in the message flow under Message Mediation Policies.
Click Upload In Flow and select the corresponding In sequence file from the <WSO2_OB_APIM_HOME>/repository/resources/finance/apis/berlin-group.org/ directory.
Click Next: Manage to navigate to the next level.
Expand Throttling Settings. Under Subscription Tiers, check the option as Unlimited : Allows unlimited requests unless you want to limit the requests.
Expand API Properties and add the following values as Additional properties:
Property Name
ob-spec
Property Value
berlin
Click the + button to save the above values.
Click Save & Publish.

Summarized information for configuring APIs

Specification	API	Implement tab				Manage tab
Specification	API	Endpoint type	Endpoint	Enable Message mediation	In flow	API property name	API property value
Berlin specification	AccountInfo API v1.1.0	Dynamic	N/A	Mark as `checked`	Select the respective `In Sequence` in the `<WSO2_OB_APIM_HOME> /repository/resources/finance/apis`

directory.
Import API Definition

Image Removed

Click Import, and then click Next: Implement > to navigate to the next page.

Expand Managed API, and click Upload In Flow.

Select the In sequence of the corresponding API version, and click Upload.
Upload mediation policy

Image Removed

Click Next: Manage > to navigate to the next page.

Expand API Properties and ensure the ob-spec property is set to reflect the correct specification.

Click Save & Publish.

`/berlin-group.org/Accounts` directory	`ob-spec`	`berlin`
Payments API v1.1.0	Dynamic	N/A	Mark as `checked`	Select the respective `In Sequence` in the `wso2-obam-version/repository/resources/finance/apis/berlin-group.org/Payments` directory	`ob-spec`	`berlin`

Multiexcerpt include

MultiExcerptName	CreateNewAPIVersion
PageWithExcerpt	Deploying APIs for UK

Versions Compared

Old Version 30

New Version Current

Key

Configuring

Configuring the velocity_template.xml file

the velocity_template.xml file

Configuring sequence files

Create a new version for an existing API

Configuring an API

Summarized information for configuring APIs