forked from mystiq/dex
291 lines
12 KiB
Go
291 lines
12 KiB
Go
// TODO(sfalvo):
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// Document how to run acceptance tests.
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// The mailgun package provides methods for interacting with the Mailgun API.
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// It automates the HTTP request/response cycle, encodings, and other details needed by the API.
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// This SDK lets you do everything the API lets you, in a more Go-friendly way.
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//
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// For further information please see the Mailgun documentation at
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// http://documentation.mailgun.com/
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//
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// Original Author: Michael Banzon
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// Contributions: Samuel A. Falvo II <sam.falvo %at% rackspace.com>
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// Version: 0.99.0
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//
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// Examples
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//
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// This document includes a number of examples which illustrates some aspects of the GUI which might be misleading or confusing.
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// All examples included are derived from an acceptance test.
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// Note that every SDK function has a corresponding acceptance test, so
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// if you don't find an example for a function you'd like to know more about,
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// please check the acceptance sub-package for a corresponding test.
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// Of course, contributions to the documentation are always welcome as well.
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// Feel free to submit a pull request or open a Github issue if you cannot find an example to suit your needs.
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//
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// Limit and Skip Settings
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//
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// Many SDK functions consume a pair of parameters called limit and skip.
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// These help control how much data Mailgun sends over the wire.
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// Limit, as you'd expect, gives a count of the number of records you want to receive.
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// Note that, at present, Mailgun imposes its own cap of 100, for all API endpoints.
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// Skip indicates where in the data set you want to start receiving from.
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// Mailgun defaults to the very beginning of the dataset if not specified explicitly.
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//
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// If you don't particularly care how much data you receive, you may specify DefaultLimit.
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// If you similarly don't care about where the data starts, you may specify DefaultSkip.
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//
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// Functions that Return Totals
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//
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// Functions which accept a limit and skip setting, in general,
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// will also return a total count of the items returned.
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// Note that this total count is not the total in the bundle returned by the call.
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// You can determine that easily enough with Go's len() function.
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// The total that you receive actually refers to the complete set of data on the server.
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// This total may well exceed the size returned from the API.
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//
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// If this happens, you may find yourself needing to iterate over the dataset of interest.
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// For example:
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//
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// // Get total amount of stuff we have to work with.
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// mg := NewMailgun("example.com", "my_api_key", "")
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// n, _, err := mg.GetStats(1, 0, nil, "sent", "opened")
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// if err != nil {
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// t.Fatal(err)
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// }
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// // Loop over it all.
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// for sk := 0; sk < n; sk += limit {
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// _, stats, err := mg.GetStats(limit, sk, nil, "sent", "opened")
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// if err != nil {
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// t.Fatal(err)
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// }
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// doSomethingWith(stats)
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// }
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//
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// License
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//
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// Copyright (c) 2013-2014, Michael Banzon.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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//
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// * Redistributions in binary form must reproduce the above copyright notice, this
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// list of conditions and the following disclaimer in the documentation and/or
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// other materials provided with the distribution.
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//
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// * Neither the names of Mailgun, Michael Banzon, nor the names of their
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package mailgun
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import (
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"fmt"
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"github.com/mbanzon/simplehttp"
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"io"
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"time"
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)
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const (
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apiBase = "https://api.mailgun.net/v2"
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messagesEndpoint = "messages"
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mimeMessagesEndpoint = "messages.mime"
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addressValidateEndpoint = "address/validate"
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addressParseEndpoint = "address/parse"
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bouncesEndpoint = "bounces"
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statsEndpoint = "stats"
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domainsEndpoint = "domains"
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deleteTagEndpoint = "tags"
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campaignsEndpoint = "campaigns"
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eventsEndpoint = "events"
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credentialsEndpoint = "credentials"
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unsubscribesEndpoint = "unsubscribes"
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routesEndpoint = "routes"
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webhooksEndpoint = "webhooks"
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listsEndpoint = "lists"
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basicAuthUser = "api"
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)
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// Mailgun defines the supported subset of the Mailgun API.
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// The Mailgun API may contain additional features which have been deprecated since writing this SDK.
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// This SDK only covers currently supported interface endpoints.
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//
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// Note that Mailgun reserves the right to deprecate endpoints.
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// Some endpoints listed in this interface may, at any time, become obsolete.
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// Always double-check with the Mailgun API Documentation to
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// determine the currently supported feature set.
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type Mailgun interface {
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Domain() string
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ApiKey() string
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PublicApiKey() string
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Send(m *Message) (string, string, error)
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ValidateEmail(email string) (EmailVerification, error)
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ParseAddresses(addresses ...string) ([]string, []string, error)
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GetBounces(limit, skip int) (int, []Bounce, error)
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GetSingleBounce(address string) (Bounce, error)
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AddBounce(address, code, error string) error
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DeleteBounce(address string) error
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GetStats(limit int, skip int, startDate *time.Time, event ...string) (int, []Stat, error)
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DeleteTag(tag string) error
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GetDomains(limit, skip int) (int, []Domain, error)
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GetSingleDomain(domain string) (Domain, []DNSRecord, []DNSRecord, error)
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CreateDomain(name string, smtpPassword string, spamAction string, wildcard bool) error
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DeleteDomain(name string) error
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GetCampaigns() (int, []Campaign, error)
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CreateCampaign(name, id string) error
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UpdateCampaign(oldId, name, newId string) error
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DeleteCampaign(id string) error
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GetComplaints(limit, skip int) (int, []Complaint, error)
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GetSingleComplaint(address string) (Complaint, error)
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GetStoredMessage(id string) (StoredMessage, error)
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GetStoredMessageRaw(id string) (StoredMessageRaw, error)
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DeleteStoredMessage(id string) error
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GetCredentials(limit, skip int) (int, []Credential, error)
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CreateCredential(login, password string) error
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ChangeCredentialPassword(id, password string) error
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DeleteCredential(id string) error
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GetUnsubscribes(limit, skip int) (int, []Unsubscription, error)
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GetUnsubscribesByAddress(string) (int, []Unsubscription, error)
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Unsubscribe(address, tag string) error
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RemoveUnsubscribe(string) error
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CreateComplaint(string) error
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DeleteComplaint(string) error
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GetRoutes(limit, skip int) (int, []Route, error)
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GetRouteByID(string) (Route, error)
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CreateRoute(Route) (Route, error)
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DeleteRoute(string) error
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UpdateRoute(string, Route) (Route, error)
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GetWebhooks() (map[string]string, error)
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CreateWebhook(kind, url string) error
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DeleteWebhook(kind string) error
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GetWebhookByType(kind string) (string, error)
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UpdateWebhook(kind, url string) error
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GetLists(limit, skip int, filter string) (int, []List, error)
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CreateList(List) (List, error)
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DeleteList(string) error
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GetListByAddress(string) (List, error)
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UpdateList(string, List) (List, error)
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GetMembers(limit, skip int, subfilter *bool, address string) (int, []Member, error)
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GetMemberByAddress(MemberAddr, listAddr string) (Member, error)
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CreateMember(merge bool, addr string, prototype Member) error
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CreateMemberList(subscribed *bool, addr string, newMembers []interface{}) error
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UpdateMember(Member, list string, prototype Member) (Member, error)
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DeleteMember(Member, list string) error
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NewMessage(from, subject, text string, to ...string) *Message
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NewMIMEMessage(body io.ReadCloser, to ...string) *Message
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NewEventIterator() *EventIterator
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}
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// MailgunImpl bundles data needed by a large number of methods in order to interact with the Mailgun API.
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// Colloquially, we refer to instances of this structure as "clients."
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type MailgunImpl struct {
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domain string
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apiKey string
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publicApiKey string
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}
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// NewMailGun creates a new client instance.
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func NewMailgun(domain, apiKey, publicApiKey string) Mailgun {
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m := MailgunImpl{domain: domain, apiKey: apiKey, publicApiKey: publicApiKey}
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return &m
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}
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// Domain returns the domain configured for this client.
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func (m *MailgunImpl) Domain() string {
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return m.domain
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}
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// ApiKey returns the API key configured for this client.
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func (m *MailgunImpl) ApiKey() string {
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return m.apiKey
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}
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// PublicApiKey returns the public API key configured for this client.
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func (m *MailgunImpl) PublicApiKey() string {
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return m.publicApiKey
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}
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// generateApiUrl renders a URL for an API endpoint using the domain and endpoint name.
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func generateApiUrl(m Mailgun, endpoint string) string {
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return fmt.Sprintf("%s/%s/%s", apiBase, m.Domain(), endpoint)
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}
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// generateMemberApiUrl renders a URL relevant for specifying mailing list members.
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// The address parameter refers to the mailing list in question.
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func generateMemberApiUrl(endpoint, address string) string {
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return fmt.Sprintf("%s/%s/%s/members", apiBase, endpoint, address)
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}
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// generateApiUrlWithTarget works as generateApiUrl,
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// but consumes an additional resource parameter called 'target'.
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func generateApiUrlWithTarget(m Mailgun, endpoint, target string) string {
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tail := ""
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if target != "" {
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tail = fmt.Sprintf("/%s", target)
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}
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return fmt.Sprintf("%s%s", generateApiUrl(m, endpoint), tail)
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}
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// generateDomainApiUrl renders a URL as generateApiUrl, but
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// addresses a family of functions which have a non-standard URL structure.
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// Most URLs consume a domain in the 2nd position, but some endpoints
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// require the word "domains" to be there instead.
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func generateDomainApiUrl(m Mailgun, endpoint string) string {
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return fmt.Sprintf("%s/domains/%s/%s", apiBase, m.Domain(), endpoint)
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}
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// generateCredentialsUrl renders a URL as generateDomainApiUrl,
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// but focuses on the SMTP credentials family of API functions.
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func generateCredentialsUrl(m Mailgun, id string) string {
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tail := ""
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if id != "" {
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tail = fmt.Sprintf("/%s", id)
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}
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return generateDomainApiUrl(m, fmt.Sprintf("credentials%s", tail))
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// return fmt.Sprintf("%s/domains/%s/credentials%s", apiBase, m.Domain(), tail)
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}
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// generateStoredMessageUrl generates the URL needed to acquire a copy of a stored message.
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func generateStoredMessageUrl(m Mailgun, endpoint, id string) string {
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return generateDomainApiUrl(m, fmt.Sprintf("%s/%s", endpoint, id))
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// return fmt.Sprintf("%s/domains/%s/%s/%s", apiBase, m.Domain(), endpoint, id)
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}
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// generatePublicApiUrl works as generateApiUrl, except that generatePublicApiUrl has no need for the domain.
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func generatePublicApiUrl(endpoint string) string {
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return fmt.Sprintf("%s/%s", apiBase, endpoint)
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}
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// generateParameterizedUrl works as generateApiUrl, but supports query parameters.
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func generateParameterizedUrl(m Mailgun, endpoint string, payload simplehttp.Payload) (string, error) {
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paramBuffer, err := payload.GetPayloadBuffer()
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if err != nil {
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return "", err
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}
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params := string(paramBuffer.Bytes())
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return fmt.Sprintf("%s?%s", generateApiUrl(m, eventsEndpoint), params), nil
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}
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// parseMailgunTime translates a timestamp as returned by Mailgun into a Go standard timestamp.
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func parseMailgunTime(ts string) (t time.Time, err error) {
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t, err = time.Parse("Mon, 2 Jan 2006 15:04:05 MST", ts)
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return
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}
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// formatMailgunTime translates a timestamp into a human-readable form.
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func formatMailgunTime(t *time.Time) string {
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return t.Format("Mon, 2 Jan 2006 15:04:05 -0700")
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}
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