5.0 KiB
linodego
Go client for Linode REST v4 API
Installation
go get -u github.com/linode/linodego
API Support
Check API_SUPPORT.md for current support of the Linode v4 API endpoints.
** Note: This project will change and break until we release a v1.0.0 tagged version. Breaking changes in v0.x.x will be denoted with a minor version bump (v0.2.4 -> v0.3.0) **
Documentation
See godoc for a complete reference.
The API generally follows the naming patterns prescribed in the OpenAPIv3 document for Linode APIv4.
Deviations in naming have been made to avoid using "Linode" and "Instance" redundantly or inconsistently.
A brief summary of the features offered in this API client are shown here.
Examples
General Usage
package main
import (
"context"
"fmt"
"github.com/linode/linodego"
"golang.org/x/oauth2"
"log"
"net/http"
"os"
)
func main() {
apiKey, ok := os.LookupEnv("LINODE_TOKEN")
if !ok {
log.Fatal("Could not find LINODE_TOKEN, please assert it is set.")
}
tokenSource := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: apiKey})
oauth2Client := &http.Client{
Transport: &oauth2.Transport{
Source: tokenSource,
},
}
linodeClient := linodego.NewClient(oauth2Client)
linodeClient.SetDebug(true)
res, err := linodeClient.GetInstance(context.Background(), 4090913)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%v", res)
}
Pagination
Auto-Pagination Requests
kernels, err := linodego.ListKernels(context.Background(), nil)
// len(kernels) == 218
Or, use a page value of "0":
opts := NewListOptions(0,"")
kernels, err := linodego.ListKernels(context.Background(), opts)
// len(kernels) == 218
Single Page
opts := NewListOptions(2,"")
// or opts := ListOptions{PageOptions: &PageOptions: {Page: 2 }}
kernels, err := linodego.ListKernels(context.Background(), opts)
// len(kernels) == 100
ListOptions are supplied as a pointer because the Pages and Results values are set in the supplied ListOptions.
// opts.Results == 218
Filtering
opts := ListOptions{Filter: "{\"mine\":true}"}
// or opts := NewListOptions(0, "{\"mine\":true}")
stackscripts, err := linodego.ListStackscripts(context.Background(), opts)
Error Handling
Getting Single Entities
linode, err := linodego.GetLinode(context.Background(), 555) // any Linode ID that does not exist or is not yours
// linode == nil: true
// err.Error() == "[404] Not Found"
// err.Code == "404"
// err.Message == "Not Found"
Lists
For lists, the list is still returned as [], but err works the same way as on the Get request.
linodes, err := linodego.ListLinodes(context.Background(), NewListOptions(0, "{\"foo\":bar}"))
// linodes == []
// err.Error() == "[400] [X-Filter] Cannot filter on foo"
Otherwise sane requests beyond the last page do not trigger an error, just an empty result:
linodes, err := linodego.ListLinodes(context.Background(), NewListOptions(9999, ""))
// linodes == []
// err = nil
Writes
When performing a POST or PUT request, multiple field related errors will be returned as a single error, currently like:
// err.Error() == "[400] [field1] foo problem; [field2] bar problem; [field3] baz problem"
Tests
Run make test to run the unit tests. This is the same as running go test except that make test will
execute the tests while playing back API response fixtures that were recorded during a previous development build.
go test can be used without the fixtures. Copy env.sample to .env and configure your persistent test
settings, including an API token.
go test -short can be used to run live API tests that do not require an account token.
This will be simplified in future versions.
To update the test fixtures, run make fixtures. This will record the API responses into the fixtures/ directory.
Be careful about committing any sensitive account details. An attempt has been made to sanitize IP addresses and
dates, but no automated sanitization will be performed against fixtures/*Account*.yaml, for example.
To prevent disrupting unaffected fixtures, target fixture generation like so: make ARGS="-run TestListVolumes" fixtures.
Discussion / Help
Join us at #linodego on the gophers slack