The Expires header contains the date and time after which the response is considered outdated or not fresh.
For example,
Expires: Fri, 01 Oct 2021 09:30:30 GMT
3οΈβ£ Expect
The Expect HTTP header indicates the client's expectation that the server can meet.
Expect header is not so common in the browsers but cURL sends the Except header by default.
For example,
Expect: 100-continue
This indicates that the client is expecting a 100 status code if the information present in the request is enough for the server to respond.
4οΈβ£ If-Modified-Since
The If-Modified-Since HTTP header is used to make the request conditional, and it asks the server whether the data has been changed or not.
The server will return the modified resource if it has been changed since the date and time mentioned in the "If-Modified-From" header.
The server will return 304 Not Modified if the resource has not changed.
For example,
If-Modified-Since: Fri, 24 Sep 2021 09:30:30 GMT
5οΈβ£ From
The From header indicates the human email address.
The server uses it to report the unwanted problems to the actual human if you're using the bot (like a Web crawler) to send requests.
For example,
From: test@rapidapi.com
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Let's see How to Create an Emotion Recognition App using React and RapidAPI.
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Step 1: Connect to the Facial Emotion Recognition API ποΈ
We will be using the free Facial Emotion Recognition API for this particular project. Head over to the Pricing page (RapidAPI.com/cloud-actions-β¦) and click on the βSubscribeβ button of the Basic plan.
Step 2: Test the API on RapidAPI Playground π§ͺ
The Facial Emotion Recognition API has only one endpoint that allows us to make a POST request using the image URL.
Add image URL inside source and URL inside sourceType parameter.
- This API provides sentiment analysis, stemming and lemmatization, part-of-speech tagging and chunking, phrase extraction, and named entity recognition.