Introduction to Caller ID

Caller ID services are essential in modern communication applications, providing the capability to identify the caller’s information before answering the call. This blog post explores the ins and outs of Caller ID services and provides numerous API examples to help developers integrate these functionalities into their applications seamlessly.

Key APIs for Caller ID

Below are some essential APIs commonly used in Caller ID functionalities:

Basic Caller ID API

This API retrieves the caller’s information.

  GET /api/caller-id?phoneNumber={phoneNumber}
  Response:
  {
      "name": "John Doe",
      "phone": "+1234567890",
      "location": "New York, USA"
  }

API to Block a Caller

This API allows users to block specific callers.

  POST /api/block-caller
  Payload:
  {
      "phoneNumber": "+1234567890"
  }
  Response:
  {
      "status": "success",
      "message": "Caller blocked successfully"
  }

API to Unblock a Caller

This API removes a caller from the block list.

  POST /api/unblock-caller
  Payload:
  {
      "phoneNumber": "+1234567890"
  }
  Response:
  {
      "status": "success",
      "message": "Caller unblocked successfully"
  }

API to Get Call History

This API retrieves the call history.

  GET /api/call-history
  Response:
  [
      {
          "name": "John Doe",
          "phone": "+1234567890",
          "time": "2023-10-01 10:00:00",
          "type": "incoming"
      },
      {
          "name": "Jane Smith",
          "phone": "+1098765432",
          "time": "2023-10-02 14:00:00",
          "type": "outgoing"
      }
  ]

API to Identify Spam Calls

This API flags potential spam calls based on a database of known spam numbers.

  GET /api/check-spam?phoneNumber={phoneNumber}
  Response:
  {
      "phoneNumber": "+1234567890",
      "isSpam": true
  }

Sample App with Caller ID APIs

Below is an example of a simple application that integrates the above Caller ID APIs:

  // Sample JavaScript code for integrating Caller ID APIs
  async function getCallerId(phoneNumber) {
    const response = await fetch(`/api/caller-id?phoneNumber=${phoneNumber}`);
    const data = await response.json();
    console.log('Caller Info:', data);
  }
  
  async function blockCaller(phoneNumber) {
    const response = await fetch('/api/block-caller', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({ phoneNumber })
    });
    const data = await response.json();
    console.log('Block Result:', data);
  }
  
  async function unblockCaller(phoneNumber) {
    const response = await fetch('/api/unblock-caller', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({ phoneNumber })
    });
    const data = await response.json();
    console.log('Unblock Result:', data);
  }
  
  async function getCallHistory() {
    const response = await fetch('/api/call-history');
    const data = await response.json();
    console.log('Call History:', data);
  }
  
  async function checkSpam(phoneNumber) {
    const response = await fetch(`/api/check-spam?phoneNumber=${phoneNumber}`);
    const data = await response.json();
    console.log('Spam Check Result:', data);
  }

Using these APIs, developers can easily add robust Caller ID features to their applications, ensuring a better user experience.

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