Besides calls to read or update appointments, this API provides methods to retrieve a subset of recent changes, or to retrieve availability information of a schedule. Note that the API is under development and not all schedule types support all methods yet. Four API endpoints are available to retrieve and manipulate appointment information:

1. Recent Changes – /api/changes – List changes since a specified date
2. List Appointments – /api/range – List appointments in a time range
3. Agenda – /api/agenda – Retrieve the appointments of a single user
4. Availability – /api/free – Retrieve a list of free spaces
5. Appointments – /api/bookings – Create, read, update and delete appointments

You must set up the actual appointment slots before others can book them. Go to Google Calendar. Click the appointment slot event on the calendar, then click on “Go to appointment page for this calendar”. Copy the calendar’s appointment page link found at the top of the page. Email this link to people looking to book an appointment. Use Google Calendar appointment slots This feature is available only with a work or school Google Calendar account. Android Computer iPhone & iPad To use Google Calendar appointment slots, go to. Reserve an appointment slot Click the link for the appointments page. You can find the link in an email, message, or calendar event that's been shared with you. Click an available appointment slot.

The API accepts data as URL parameters, as JSON or as XML, and can return data as either JSON or XML.

Authentication

Please refer to the Authentication Page.

The Recent Changes API

All input values need to be URL encoded. The system will respond with a list of all appointments that have seen a change recently, or since the time specified by the from parameter.

If you have included the parameter slot=true on the request for a capacity-type schedule, the document will be formatted as a tree of slots containing the relevant bookings:

All times are returned in the format YYYY-MM-DD HH:MM:SS, independent of the format specified in the account settings.

Alternatives to using the Recent Changes API

Instead of frequently polling our server to see if anything changed it is preferable to configure a webhook. The webhook can actually be configured to supply every change as a payload so it may make polling entirely unnecessary. If you want to keep a back-end system updated with changes made on a SuperSaaS schedule, there are several alternative options.

• You can use the webcal interface. This is an RFC 2445 compliant interface for which several client libraries exist. However, the iCalendar format allows only limited details about an appointment to be transmitted.
• You can send an email (or SMS) notification to yourself and extract the relevant values from those messages. This requires setting up an automatic email reader.
• You can publish availability data for your schedule to Google Calendar and use their extensive API to query it.

List Appointments

All input values need to be URL encoded. For Resource and Service schedules, the system will respond with a list of appointments in the requested range.

If you specified a “capacity”-type schedule, the system will respond with a list of slots in the requested range.

Appointments In Google Calendar

If you include the parameter slot=true on the request for a capacity-type schedule, the bookings for the slots will also be inserted:

All times returned by the API are in the ISO format YYYY-MM-DD HH:MM:SS, independent of the format specified in the account settings.

The Agenda API

This API allows you to retrieve the appointments of a single user. Authentication can be done with a one-way hash to allow retrieval through a client-side AJAX request. Output fields are identical to those listed for the Recent Changes API.

If you omit the schedule_id parameter, all schedules will be listed. In that case, however, you need to add an account parameter to specify the name of the account for which you want to retrieve the appointments.
For example, the following call would show all appointments for a user for each schedule in the account:

All input values need to be URL encoded. The system will reply with a document that lists all appointments occurring after the from time. The output fields are identical to those for the Recent Changes API.

The Availability API

This API allows you to retrieve a list of free spaces in a specific schedule. Note that this API does not support “Service”-type schedules.

Google Calendar Appointment Slots Api App

It is recommended that you add a If-Modified-Since header to reduce server load. This will result in a 304 Not Modified response if nothing changed since your last request. Note that the number of free spots can also change due to the time passing, for example, because a schedule does not allow appointments to be made in the past. The 304 Not Modified response does not take this into account. The system will reply with a document that lists all free spaces occurring after the from time.

All times are returned in local time and in the format YYYY-MM-DD HH:MM:SS, independent of the format specified in the account settings.

The Appointments API

The Appointments API allows you to create, read, update and delete appointments from a schedule. Note that it doesn’t support service schedules and while you can create new appointments in a capacity schedule, it is not possible to create empty slots through the API.

Currently, all API actions are performed as administrator, creating or updating as a regular user is not yet supported. You can use the checksum authentication mentioned above if you want to create an appointment from a client-side script inside a browser.

Create a new appointment

To create a new appointment, you need to send an HTTP POST request to /api/bookings.json (or .xml). The request should either contain a JSON or an XML document describing the new user, or have the fields as URI encoded parameters. See the table below for an explanation of the fields.

If the record has been created correctly, the response will be a header with status code 201 Created. The Location field of the response header will contain the URL that you can use to update the appointment later, e.g.: Location: https://www.supersaas.com/api/bookings/1234.json.xml. If you want to update the booking via the API later, then you need to extract the ID of the created object (1234) from this URL. The response will be 404 Not Found if the schedule doesn’t exist and 403 Not authorized if the api_key or checksum is incorrect. If the object did not pass validation, for example due to an invalid email address, then status 422 Unprocessable Entity will be returned, with the body of the response containing the error messages.

Data Format

The fields that you can supply are determined on the Configure >Process tab. These settings also determine which values are optional, and which required. Note that in XML messages, the underscores are replaced with dashes.

Illustrative Usage

Resource Schedule

To create an appointment in the resource schedule with ID <schedule_id>, you would send the following HTTP POST request (the values still need to be URI encoded):

Appointments can also be created by sending a JSON request. The authentication and schedule id are encoded in the URL and the appointment data in the JSON body. The example below will have the same effect as the example above with URL-encoded parameters.

Capacity Schedule

To create an appointment in the capacity schedule with ID <schedule_id>, you would send the following HTTP POST request (the values still need to be URI encoded):

Appointments can also be created by sending a JSON request. The authentication and schedule id are encoded in the URL and the appointment data in the JSON body. The example below will have the same effect as the example above with URL-encoded parameters.

Read a single appointment

When reading data, the retrieved document will contain the following fields in addition to the ones listed above:

Read multiple appointments

There are three specialized APIs available to retrieve multiple appointments depending on whether you want those filtered by user, by date, or by recent changes. See the beginning of this section for details. In addition to those, you can retrieve all appointments for a calendar with:

You can pass the limit=X parameter to limit the number of returned results to X. As a special case, on a resource type schedule you can pass a start parameter to only show results past that time. This allows you to retrieve the next upcoming appointment with a request like /api/bookings.json?schedule_id=123&start=2020-10-10&limit=1.

Show forms

When a form is attached to an appointment, you can show the form’s data by adding the form=true parameter to the URL. The output will be the same as the Form API.

Update an appointment

To update an appointment, you need to send an HTTP PUT request to /api/bookings.json, specifying the ID of the appointment in question. Similar to creating an appointment, you can either provide a JSONan XML document or use URI encoded parameters.

The system looks for the record with the given ID and updates it. The result will be an empty response with a 200 OK status. However, if the ID is not found, for example because the appointment has already been deleted, a 404 Not Found status code is returned. Furthermore, if the object contains invalid fields the response will be a 422 Unprocessable Entity with a JSONan XML error document.

Delete an appointment

Deleting an appointment can be done by sending an HTTP DELETE request to /api/bookings.json, specifying the ID of the appointment in question.

The system will look for the ID in the database and return 200 OK if the record was deleted successfully or 404 Not found if it (no longer) exists.