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Paul Gottschling deda8410b3 Add product and guide type labels to docs pages (#56097)
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---
title: API Getting Started Guide
description: Get started working with the Teleport API programmatically using Go.
labels:
- get-started
- mwi
---
In this getting started guide we will use the Teleport API Go client to connect
to a Teleport Auth Service.
Here are the steps we'll walkthrough:
- Create an API user using a simple role-based authentication method.
- Generate credentials for that user.
- Create and connect a Go client to interact with Teleport's API.
## Prerequisites
- Install [Go](https://golang.org/doc/install) (=teleport.golang=)+ and Go development environment.
(!docs/pages/includes/edition-prereqs-tabs.mdx!)
- (!docs/pages/includes/tctl.mdx!)
## Step 1/3. Create a user
(!docs/pages/includes/permission-warning.mdx!)
<Admonition type="tip" title="Tip">
Read [API authorization](../../reference/architecture/api-architecture.mdx) to learn more about defining custom roles for your API client.
</Admonition>
Create a user `api-admin` with the built-in role `editor`:
```code
$ tctl users add api-admin --roles=editor
```
## Step 2/3. Generate client credentials
Log in as the newly created user with `tsh`.
```code
# generate tsh profile
$ tsh login --user=api-admin --proxy=tele.example.com
```
The [Profile Credentials loader](https://pkg.go.dev/github.com/gravitational/teleport/api/client#LoadProfile)
will automatically retrieve Credentials from the current profile in the next step.
## Step 3/3. Create a Go project
Set up a new [Go module](https://golang.org/doc/tutorial/create-module) and import the `client` package:
```code
$ mkdir client-demo && cd client-demo
$ go mod init client-demo
$ go get github.com/gravitational/teleport/api/client
```
<Admonition type="tip" title="API Version">
To ensure compatibility, you should use a version of Teleport's API library that matches
the major version of Teleport running in your cluster.
To find the pseudoversion appropriate for a go.mod file for a specific git tag,
run the following command from the `teleport` repository:
```code
$ go list -f '{{.Version}}' -m "github.com/gravitational/teleport/api@$(git rev-parse v12.1.0)"
v0.0.0-20230307032901-49a6de744a3a
```
</Admonition>
Create a file called `main.go`, modifying the `Addrs` strings as needed:
```go
package main
import (
"context"
"log"
"github.com/gravitational/teleport/api/client"
)
func main() {
ctx := context.Background()
clt, err := client.New(ctx, client.Config{
Addrs: []string{
// Teleport Cloud customers should use <tenantname>.teleport.sh
"tele.example.com:443",
"tele.example.com:3025",
"tele.example.com:3024",
"tele.example.com:3080",
},
Credentials: []client.Credentials{
client.LoadProfile("", ""),
},
})
if err != nil {
log.Fatalf("failed to create client: %v", err)
}
defer clt.Close()
resp, err := clt.Ping(ctx)
if err != nil {
log.Fatalf("failed to ping server: %v", err)
}
log.Printf("Example success!")
log.Printf("Example server response: %v", resp)
log.Printf("Server version: %s", resp.ServerVersion)
}
```
Now you can run the program and connect the client to the Teleport Auth Service to fetch the server version.
```code
$ go run main.go
```
## Next steps
- Learn about [pkg.go.dev](https://pkg.go.dev/github.com/gravitational/teleport/api/client)
- Learn how to use [the client](https://pkg.go.dev/github.com/gravitational/teleport/api/client#Client)
- Learn how to [work with credentials](https://pkg.go.dev/github.com/gravitational/teleport/api/client#Credentials)
- Read about Teleport [API architecture](../../reference/architecture/api-architecture.mdx) for an in-depth overview of the API and API clients.
- Read [API authorization](../../reference/architecture/api-architecture.mdx) to learn more about defining custom roles for your API client.
- Review the `client` [pkg.go reference documentation](https://pkg.go.dev/github.com/gravitational/teleport/api/client) for more information about working with the Teleport API programmatically.
- Familiarize yourself with the [admin manual](../management/admin/admin.mdx) to make the best use of the API.