Accessing a service, such as a printing service, via a scannable code

A method comprising:

• receiving from a server, by one or more processors of a service device, account information associated with a user device, the account information comprising a device identifier and an amount of credit in an account associated with the user device, wherein the device identifier comprises an International Mobile Equipment Identifier (IMEI) that uniquely identifies the user device;
• receiving, from the server, a one-time password to access the account associated with the user device to establish a single session;
• in response to receiving the account information, initiating a process to identify the user device using a wireless communication protocol based at least in part on the device identifier;
• in response to identifying the user device based at least in part on the device identifier, establishing the single session using wireless communications between the service device and the user device;
• authenticating the user device based at least in part on the one-time password;
• sending, to the user device, a confirmation message indicating that the single session is established;
• receiving, by the one or more processors, digital data from the user device via the wireless communications;
• receiving, by the one or more processors via the wireless communications, at least one action to be performed during the single session;
• determining that the at least one action is permitted based on a set of approved actions associated with the account;
• performing the at least one action, by the one or more processors, using the digital data;
• sending, by the one or more processors and to the user device, a status associated with performing the at least one action;
• and
• modifying, by the one or more processors and based at least in part on the at least one action and the digital data, the amount of credit in the account to create an updated credit amount.

One or more non-transitory computer-readable storage media to store instructions that are executable by one or more processors of a service device to perform operations comprising:

• receiving from a server, by the service device, account information associated with a user device, the account information comprising a device identifier and an amount of credit in an account associated with the user device, wherein the device identifier comprises an International Mobile Equipment Identifier (IMEI) that uniquely identifies the user device;
• receiving, from the server, a one-time password to access the account associated with the user device to perform at least one action during a single session;
• in response to receiving the account information, initiating a process to identify the user device using a wireless communication protocol and based at least in part on the device identifier;
• in response to identifying the user device based at least in part on the device identifier, establishing the single session using wireless communications between the service device and the user device;
• authenticating the user device based at least in part on the one-time password;
• sending, to the user device, a confirmation message indicating that the single session is established;
• receiving, via the wireless communications, digital data from the user device;
• receiving, via the wireless communications, at least one action to be performed during the single session;
• determining that the at least one action is permitted based on a set of approved actions associated with the account;
• performing the at least one action, by the service device, using the digital data;
• and
• modifying, by the service device and based at least in part on the at least one action and the digital data, the amount of credit in the account to create an updated credit amount.