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Step 1: Sign in to the system
To begin using the APIs, users must first authenticate themselves by making a call to the Sign In API. This step is crucial as it establishes a secure session for the user, allowing access to the subsequent functionalities.
Step 2: Search for Instances
Once signed in, users can utilize the Search API to explore the various instances available. This API call enables users to filter and find instances that meet their specific requirements, ensuring they have a range of options to choose from. You will need to specify the AWS designation for region with zone id, instance family, instance size and when your start and end times. End time can be changed during instance reservation and afterwards as well.
Step 3: Reserve an Instance
After identifying a suitable instance, users can proceed to check its availability by invoking the Reserve API. This API will confirm whether the selected instance can be reserved for purchase. The user needs to specify the AWS regions/zone, Platform (Linux/Unix), start and end time.
If the Instance is Available
If the instance is available for reservation, users can move forward to purchase it by using the Purchase API. This step finalizes the transaction, allowing users to acquire the instance for their cloud account.
If the Instance is Not Available
In the event that the instance is not available for reservation, users will need to select an alternative instance. They can initiate the Reserve API again to check the availability of the new selection.
Step 4: Advanced Configuration (Optional)
Several parameters exist to configure security groups, VPC, and EBS volume sizes before the instance is purchased. Not these parameters cannot be changed after the instance has been purchased.
Step 5: Accessing the Purchased Instance
Once the purchase is successfully completed, the instance will be added to the user’s AWS cloud account. Users can then access and manage their newly acquired resources as needed.
Step 6: Cancel Purchased Instance
After the instance is purchased, user can cancel for free within 10 minutes of purchase and before 24 hours of start time (free of charge). After that time a penalty of 20% is deducted for the remaining operating duration left for the instance.
Step 7: One time renewal or Auto-renewal
During reservation and after purchase, customer have option to renew the instances for 24 hours, 7 days or 30 days. Use can also turn on auto-renewal for these duration. Renewal is only honored and charged if the instance is available for the new duration.