VP Tech Bloggers

Here, I will explain, how to create an API through API Publisher .  This request is to obtain the consumer key/ secret key pair. curl -X POST -H "Authorization: Basic < BASE64 username:password >" -H "Content-Type: application/json" -d '{"callbackUrl": "www.google.lk","clientName": "rest_api_publisher","tokenScope": "Production","owner": " username ","grantType": "password refresh_token","saasApp": true}' https:// api.cloud.wso2.com /client-registration/v0.11/register Note: The <user name> should be email@organization_key. For example, if the e-mail is john@gmail.com, the <user name> should be  john@gmail.com@organization_key. You can find the organization_key on the Manage page of the cloud. Sample Request: curl -X POST -H "Authorization: Basic dml2ZWthbmFudGhhbxxxxxxxxxxxxxx= " -H "Content-Type: ...

This blog guides you to add additional headers to published API in WSO2 API Cloud .  The API Cloud is based on WSO2 API Manager , WSO2's complete solution for designing and publishing APIs and managing a developer community. In order to add additional headers to the allowed headers, we have to configure CORS headers per API level . Once we configure, we can include additional headers in the API Console. In the example below, we will add a custom header called " setName " to an existing API and invoke it from the Developer Portal. Edit a published API and then click "Next: Implement >"          Select the Enable API based CORS Configuration check box to enable CORS for the API. Add the additional headers in "Access Control Allow Headers", then Enter and click Save. Now we have completed for configuring  CORS headers. Then we need to include additional headers in the API Console. Edit a published API again, then nav...

In my previous blog, I describe how to work with SNMP Connector and now I am going to do a scenario by integrating the SNMP Connector with the Google Spreadsheet connector. This scenario explains that insert the data which is the response of the SNMPSet operation to the spreadsheet. Before start, the ESB, download snmp4j-2.5.5.jar and add it to the <ESB_HOME>/repository/components/lib directory. Environment Setup Download ESB 5.0.0 from  here . Upload the following connectors. (Refer this to  add and enable the connector ) snmp-connector-1.0.0 googlespreadsheet-connector-3.0.0 Follow the  instruction  to get the credential for the Google Spreadsheet Connector. Following is a sample proxy service that illustrates how to test the above scenario. <?xml version="1.0" encoding="UTF-8"?> <proxy xmlns="http://ws.apache.org/ns/synapse" name="SNMPSetScenario" startOnLoad="true" statistics=...

SNMP Connector allows you to monitor and configure the network components such as servers, routers, switches or printers through the WSO2 ESB. Simple Network Management Protocol (SNMP) is an Internet-standard protocol for managing devices on IP networks. It uses the snmp4j library which is an enterprise class free open source SNMP implementation for Java™ SE. Before start, the ESB, download snmp4j-2.5.5.jar and add it to the <ESB_HOME>/repository/components/lib directory. Environment Setup Download ESB 5.0.0 from  here . Deploy the SNMP Connector.(Refer this to  add and enable the connector ) Following is a sample proxy service that illustrates how to test the SNMPSet operation. <proxy xmlns="http://ws.apache.org/ns/synapse" name="SNMPSet" startOnLoad="true" statistics="disable" trace="disable" transports="https,http,local"> <target> <inSequence...

In this section, I am going to describe  a connector scenario by integrating the File Connector with  the Gmail connector.  For an example, you can use  the File Connector to read a file content and send that content using Gmail Connector. Environment Setup Download ESB 5.0.0 from  here . Upload the following connectors. (Refer this to add and enable the connector ) fileconnector-connector-2.0.6 gmail-connector-3.0.4 Follow the instruction to get the credential for the Gmail connector. Following is a sample proxy service that illustrates how to test the above scenario. <?xml version="1.0" encoding="UTF-8"?> <proxy xmlns="http://ws.apache.org/ns/synapse" name="Read_AND_sendMail" transports="https,http" statistics="disable" trace="disable" startOnLoad="true"> <target> <inSequence> <property name="source" expression="json-eva...

The SNMP(Simple Network Management Protocol)is a protocol that allows devices to expose useful information to other devices or applications. Using SNMP, the Network operators can be able to manage their network elements, identify the fault, and can configure the remote system. The SNMP Protocol is based on the communication between an Agent and a Manager. SNMP Manager: A manager or management system is a separate entity that is responsible for communicating with the SNMP agent implemented network devices. SNMP Manager’s key functions Queries agents.  Gets responses from agents Sets variables in agents.  Acknowledges asynchronous events from agents.  SNMP Agent: The agent is a program that is packaged within the network element. Enabling the agent allows it to collect the management information database from the device locally and makes it available to the SNMP manager when it is queried for. These agents could be standard (e.g. Net-SNMP) or specific to a...

Register an Application  In the MailChimp account, navigate to the Account page. In the account drop-down menu, click Extras and choose API Keys Under the “Developing an App?” heading, click Register and Manage Your Apps Click Register an App In the fields provided, input your application’s information and click Create When creation is successful, you’ll see an Aplication created message appear, and more information at the end of your form, including the Client_ID and Client Secret Obtain the Access Token It begins the authorization process by redirecting the user to the authorize_uri. This is a GET request, and response_type=code, client_id, and the redirect_uri are included. https://login.mailchimp.com/oauth2/authorize?response_type=code&client_id=12345&redirect_uri=http://vsvives.blogspot.com/ The user is prompted to enter their username and password to approve the application then you will redirect back to your redirect_uri as a GET request with the code parameter. h...