Invoke WebService using Apex ( with/without Authorization) using Apex

Apex Aug 31, 2014
  • Add your **Endpoint URL** in **remote site settings** as shown

    Navigation: Setup -> Security Controls -> Remote site Settings

  • Save Remote Site settings
  • lets consider **Apex__gen__class** as **wsdl** generated class
  • Don't know how to generate **Apex Class** from **WSDL** click here
  • Initiate Class as follows
  • ```java Apex_gen_class ws = new Apex_gen_class(); ```
  • if your webservice needs basic authentication, it should go like this
  • ```java // "ws" is an Object of Apex_gen_class, which initiated above

    ws.inputHttpHeaders_x = new Map <String, String>();
    String b64_string = EncodingUtil.base64Encode(Blob.valueOf('<user_name>:'));
    ws.inputHttpHeaders_x.put('Authorization', 'Basic ' + b64_string);

    // donot add this if authentication not need

    <li>Successfully authenticated! Now invoke your **webservice methods** as shown</li>
    ws.<your_methods_name>(); // pass parameters if method takes arguments
  • Thats it! now assign method to corresponding data type, like string or List etc.
  • NOTE: if Authorization not needed simply dont add bullet #6.


    So we have learned,

    1. How to create Remote Site Settings
    2. Generation of Apex Class from WSDL
    3. Iniatiation
    4. Basic Authorization
    5. webservice methods invoking

    Phanindra Mangipudi

    Salesforce, Lightning Web Componets, Node.Js, Angular 2+, Bootstrap