Visma eAccounting Ruby API Wrapper

VismaEaccounting is an API wrapper for the Visma eAccounting API.

Important Notes

VismaEaccounting returns a VismaEaccounting::Response instead of the response body directly. VismaEaccounting::Response exposes the parsed response body and headers.

Installation

$ gem install visma_eaccounting

Authentication

The Visma eAccounting API authenticates using a token which you can retrieve when authorizating using OAuth with your Visma eAccounting account.

To retrieve an access token you can use omniauth-visma. Do note that this token expires in one hour so you need to fetch a new access token using the refresh token when required.

Usage

First, create a one-time use instance of VismaEaccounting::Request:

visma_eaccounting = VismaEaccounting::Request.new(token: "your_token")

Note Only reuse instances of VismaEaccounting after terminating a call with a verb, which makes a request. Requests are light weight objects that update an internal path based on your call chain. When you terminate a call chain with a verb, a request instance makes a request and resets the path.

You can set an individual request's timeout and open_timeout like this:

visma_eaccounting.timeout = 30
visma_eaccounting.open_timeout = 30

You can read about timeout and open_timeout in the Net::HTTP doc.

Now you can make requests using the resources defined in the Visma eAccounting's docs. Resource IDs are specified inline and a CRUD (create, retrieve, update, or delete) verb initiates the request.

You can specify headers, params, and body when calling a CRUD method. For example:

visma_eaccounting.customers.retrieve(headers: {"SomeHeader": "SomeHeaderValue"}, params: {"query_param": "query_param_value"})

Of course, body is only supported on create and update calls. Those map to HTTP POST and PUT verbs respectively.

You can set token, api_endpoint, timeout, open_timeout, faraday_adapter, proxy, symbolize_keys, logger, and debug globally:

VismaEaccounting::Request.token = "your_token"
VismaEaccounting::Request.timeout = 15
VismaEaccounting::Request.open_timeout = 15
VismaEaccounting::Request.symbolize_keys = true
VismaEaccounting::Request.debug = false

For example, you could set the values above in an initializer file in your Rails app (e.g. your_app/config/initializers/visma_eaccounting.rb).

Assuming you've set an token on VismaEaccounting, you can conveniently make API calls on the class itself:

VismaEaccounting::Request.customers.retrieve

Note Substitute an underscore if a resource name contains a hyphen.

Pass symbolize_keys: true to use symbols (instead of strings) as hash keys in API responses.

visma_eaccounting = VismaEaccounting::Request.new(token: "your_token", symbolize_keys: true)

Visma's API documentation is a list of available endpoints.

Debug Logging

Pass debug: true to enable debug logging to STDOUT.

visma_eaccounting = VismaEaccounting::Request.new(token: "your_token", debug: true)

Custom logger

Ruby Logger.new is used by default, but it can be overrided using:

visma_eaccounting = VismaEaccounting::Request.new(token: "your_token", debug: true, logger: MyLogger.new)

Logger can be also set by globally:

VismaEaccounting::Request.logger = MyLogger.new

Examples

Customers

Fetch all customers:

visma_eaccounting.customers.retrieve

By default the Visma API returns 50 results. To set the count to 50:

visma_eaccounting.customers.retrieve(params: {"pagesize": "100"})

And to retrieve the next 50 customers:

visma_eaccounting.customers.retrieve(params: {"pagesize": "100", "page": "2"})

Query using filters:

visma_eaccounting.customers.retrieve(params: {"filter": "contains(Name, ‘MakePlans’)"})

Retrieving a specific customer looks like:

visma_eaccounting.customers(customer_id).retrieve

Add a new customer:

visma_eaccounting.customers.create(body: {"Name": "MakePlans AS"})

Fields

Only retrieve ids and names for fetched customers:

visma_eaccounting.customers.retrieve(params: {"select": "Id, Name"})

Error handling

VismaEaccounting raises an error when the API returns an error.

VismaEaccounting::VismaEaccountingError has the following attributes: title, detail, body, raw_body, status_code. Some or all of these may not be available depending on the nature of the error. For example:

begin
  visma_eaccounting.customers.create(body: body)
rescue VismaEaccounting::VismaEaccountingError => e
  puts "Houston, we have a problem: #{e.message} - #{e.raw_body}"
end

Other

You can set an optional proxy url like this (or with an environment variable VISMA_PROXY):

visma_eaccounting.proxy = 'http://your_proxy.com:80'

You can set a different Faraday adapter during initialization:

visma_eaccounting = VismaEaccounting::Request.new(token: "your_token", faraday_adapter: :net_http)

Initialization

visma_eaccounting = VismaEaccounting::Request.new(token: "your_token")