Fathom Analytics API

This library provides convenient access to the Fathom Analytics API from Go.

The full API of this library can be found in api.md.

Contents

• Installation
• Usage
• API Reference
• Authentication
• Errors
• Client Options
• Request Options
• Retries and Timeouts
• Helpers
• Logging
• Requirements

Installation

go get github.com/marclave/fathom-go

Usage

package main

import (
	"context"
	"os"

	sdk "github.com/marclave/fathom-go"
	"github.com/marclave/fathom-go/option"
)

func main() {
	client := sdk.NewClient(
		option.WithBearerAuth(os.Getenv("BEARER_AUTH")),
	)

	err := client.Account.List(context.Background())
	if err != nil {
		panic(err)
	}
}

The examples in the following sections assume a client configured as shown above.

See the API reference for every available operation.

Authentication

Pass credentials to the generated client constructor. Environment variables are read automatically when supported by the target runtime.

Option	Type	Default	Description
option.WithBearerAuth	string | provider	-	Authenticate with a personal API token created at https://app.usefathom.com/api, sent as Authorization: Bearer <token>. Defaults to BEARER_AUTH.

Declared schemes:

• bearerAuth bearer token

Errors

Non-success responses return generated API errors. Error objects expose status, headers, response body, and request metadata where the target runtime supports it.

err := client.Account.List(context.Background())
if err != nil {
	var apiErr *sdk.Error
	if errors.As(err, &apiErr) {
		fmt.Println(apiErr.StatusCode, apiErr.RawJSON())
	}
	panic(err)
}

// imports: "context", "errors", "fmt", sdk "github.com/marclave/fathom-go"

Documented error statuses: 400, 401, 410.

Client Options

Configure the generated client by setting any of these options when you create it.

client := sdk.NewClient(
	option.WithBaseURL("https://api.example.com"),
	option.WithMaxRetries(2),
	option.WithRequestTimeout(60*time.Second),
)

// imports: sdk "github.com/marclave/fathom-go", "github.com/marclave/fathom-go/option", "time"

Option	Type	Default	Description
option.WithBearerAuth	func(string) option.RequestOption	os.Getenv("BEARER_AUTH")	Authenticate with a personal API token created at https://app.usefathom.com/api, sent as Authorization: Bearer <token>.
option.WithEnvironmentFathomAnalyticsApiV1	func() option.RequestOption	-	Select the fathom_analytics_api_v1 API environment.
option.WithBaseURL	func(string) option.RequestOption	os.Getenv("FATHOM_BASE_URL")	Override the default API base URL.
option.WithRequestTimeout	func(time.Duration) option.RequestOption	-	Maximum time to wait for each request attempt.
option.WithMaxRetries	func(int) option.RequestOption	2	Number of retries for temporary failures.
option.WithHTTPClient	func(option.HTTPClient) option.RequestOption	-	Custom HTTP client or transport implementation.

Request Options

Option	Type	Default	Description
option.WithHeader	func(string, string) option.RequestOption	-	Set a per-request header.
option.WithQuery	func(string, string) option.RequestOption	-	Set a per-request query parameter.
option.WithRequestBody	func(string, any) option.RequestOption	-	Override the serialized request body and content type.
option.WithResponseInto	func(**http.Response) option.RequestOption	-	Capture the raw HTTP response.
option.WithResponseBodyInto	func(any) option.RequestOption	-	Override the response deserialization target.

Retries and Timeouts

Generated clients support request timeouts and retry temporary failures such as network errors, 408, 409, 429, and 5xx responses. Retry delays honor Retry-After headers when present. Tune the retry and timeout client options shown above, or override them per request.

Helpers

• Pass option.WithResponseInto(&raw) to capture the underlying *http.Response for a request.
• Use the generated String, Int, Bool, Float, Time, Opt, and Ptr helpers when setting optional params.

Logging

• Wrap the HTTP client with option.WithMiddleware(...) to add request logging or tracing.

Requirements

• Go 1.22 or newer

Powered by Scalar.