forked from mattbaird/gochimp
/
api.go
174 lines (159 loc) · 4.09 KB
/
api.go
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/**
* Copyright 2012 Matthew Baird
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
package gochimp
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
"net/url"
"regexp"
"strconv"
)
const mandrill_uri string = "mandrillapp.com/api/"
const mandrill_version string = "1.0"
type MandrillAPI struct {
Key string
endpoint string
}
type ChimpAPI struct {
Key string
endpoint string
}
// see https://mandrillapp.com/api/docs/
// currently supporting json output formats
func NewMandrill(apiKey string) (*MandrillAPI, error) {
u := url.URL{}
u.Scheme = "https"
u.Host = mandrill_uri
u.Path = mandrill_version
return &MandrillAPI{apiKey, u.String()}, nil
}
const mailchimp_uri string = "%s.api.mailchimp.com"
const mailchimp_version string = "/1.3/"
const debug bool = false
var mailchimp_datacenter = regexp.MustCompile("[a-z]+[0-9]+$")
func NewChimp(apiKey string, https bool) (*ChimpAPI, error) {
u := url.URL{}
if https {
u.Scheme = "https"
} else {
u.Scheme = "http"
}
u.Host = mandrill_uri
u.Path = mandrill_version
u.Host = fmt.Sprintf("%s.api.mailchimp.com", mailchimp_datacenter.FindString(apiKey))
u.Path = mailchimp_version
return &ChimpAPI{apiKey, u.String() + "?method="}, nil
}
func runChimp(api *ChimpAPI, path string, parameters map[string]interface{}) ([]byte, error) {
if parameters == nil {
parameters = make(map[string]interface{})
}
parameters["key"] = api.Key
b, err := json.Marshal(parameters)
if err != nil {
return nil, err
}
requestUrl := fmt.Sprintf("%s%s", api.endpoint, path)
if debug {
log.Printf("Request URL:%s", requestUrl)
}
resp, err := http.Post(requestUrl, "application/json", bytes.NewBuffer(b))
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if debug {
log.Printf("Response Body:%s", string(body))
}
if err = chimpErrorCheck(body); err != nil {
return nil, err
}
return body, nil
}
func runMandrill(api *MandrillAPI, path string, parameters map[string]interface{}) ([]byte, error) {
if parameters == nil {
parameters = make(map[string]interface{})
}
parameters["key"] = api.Key
b, err := json.Marshal(parameters)
if debug {
log.Printf("Payload:%s", string(b))
}
if err != nil {
return nil, err
}
requestUrl := fmt.Sprintf("%s%s", api.endpoint, path)
if debug {
log.Printf("Request URL:%s", requestUrl)
}
resp, err := http.Post(requestUrl, "application/json", bytes.NewBuffer(b))
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if debug {
log.Printf("Response Body:%s", string(body))
}
if err = mandrillErrorCheck(body); err != nil {
return nil, err
}
return body, nil
}
func parseString(body []byte, err error) (string, error) {
if err != nil {
return "", err
}
return strconv.Unquote(string(body))
}
func parseMandrillJson(api *MandrillAPI, path string, parameters map[string]interface{}, retval interface{}) error {
body, err := runMandrill(api, path, parameters)
if err != nil {
return err
}
json.Unmarshal(body, retval)
return nil
}
func parseChimpJson(api *ChimpAPI, method string, parameters map[string]interface{}, retval interface{}) error {
body, err := runChimp(api, method, parameters)
if err != nil {
return err
}
return parseJson(body, retval)
}
type JsonAlterer interface {
alterJson(b []byte) []byte
}
func parseJson(body []byte, retval interface{}) error {
switch r := retval.(type) {
case JsonAlterer:
json.Unmarshal(r.alterJson(body), retval)
default:
json.Unmarshal(body, retval)
}
return nil
}