Instruction: Explain how to securely integrate and retrieve data from external APIs using R.
Context: This question tests the candidate's knowledge of interfacing R with external APIs securely for data retrieval and processing.
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"To securely integrate and retrieve data from external APIs using R, the process begins by understanding the security protocols the API employs. Most modern APIs require OAuth authentication, SSL encryption, and sometimes additional security measures like API keys or client IDs. My approach involves three key steps: setting up a secure connection, authenticating, and then retrieving the data."
Firstly, establishing a secure connection is fundamental....