OpenAi的api接口申请及接入

api接口申请

Tips：最近openai的api已经被墙了，所以需要科学上网。

·注册openai账号。

·生成api key，初始赠送18美金使用额度，额度用完之后需要自行购买，具体的价格和模型相关。

api接入

Tips：准备好申请的key和梯子后，就可以开始我们的openai之旅了。以下示例以python执行。

安装openai模块

pip install openai

调用openai接口

import openai
import os
openai.api_key = ('申请的key')
model_engine_id = "text-davinci-002"
prompt = "帮我生成一段话，因为工作的原因，错误过了和女朋友的约会 "
completions = openai.Completion.create(
engine=model_engine_id,
prompt=prompt,
max_tokens=60,
)
message = completions.choices[0].text.strip()
print(message)

查看输出结果

I'm sorry for missing our date. I was really looking forward to seeing you, but something came up at work and I had to stay late. I hope you understand.

自建代理

Tips：没有梯子或者没有海外云服务器的话，可以自建代理。使用cloudFlare作为域名解析服务，原来有一个闲置的域名在阿里云，将ns解析的dns服务器转到cloudFlare

参考域名解析从阿里云转向cloudFlare

1、cloudFlare下准备域名

注册Cloudflare账号,然后将阿里云上的域名添加到CloudFlare

网站--添加站点--输入要托管的域名--添加站点

解析前的dns服务器

将阿里云上的dns服务器

ns1.bdydns.cn

ns2.bdydns.cn

改成

konnor.ns.cloudflare.com

nadia.ns.cloudflare.com

2、Cloudflare Workers搭建代理

参考worker创建

workers路由--管理workers--创建服务

将如下代码写入编辑框并保存

// Website you intended to retrieve for users.
const upstream = 'api.openai.com'

// Custom pathname for the upstream website.
const upstream_path = '/'

// Website you intended to retrieve for users using mobile devices.
const upstream_mobile = upstream

// Countries and regions where you wish to suspend your service.
const blocked_region = []

// IP addresses which you wish to block from using your service.
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']

// Whether to use HTTPS protocol for upstream address.
const https = true

// Whether to disable cache.
const disable_cache = false

// Replace texts.
const replace_dict = {
'$upstream': '$custom_domain',
}

addEventListener('fetch', event => {
event.respondWith(fetchAndApply(event.request));
})

async function fetchAndApply(request) {
const region = request.headers.get('cf-ipcountry').toUpperCase();
const ip_address = request.headers.get('cf-connecting-ip');
const user_agent = request.headers.get('user-agent');

let response = null;
let url = new URL(request.url);
let url_hostname = url.hostname;

if (https == true) {
url.protocol = 'https:';
} else {
url.protocol = 'http:';
}

if (await device_status(user_agent)) {
var upstream_domain = upstream;
} else {
var upstream_domain = upstream_mobile;
}

url.host = upstream_domain;
if (url.pathname == '/') {
url.pathname = upstream_path;
} else {
url.pathname = upstream_path + url.pathname;
}

if (blocked_region.includes(region)) {
response = new Response('Access denied: WorkersProxy is not available in your region yet.', {
status: 403
});
} else if (blocked_ip_address.includes(ip_address)) {
response = new Response('Access denied: Your IP address is blocked by WorkersProxy.', {
status: 403
});
} else {
let method = request.method;
let request_headers = request.headers;
let new_request_headers = new Headers(request_headers);

new_request_headers.set('Host', upstream_domain);
new_request_headers.set('Referer', url.protocol + '//' + url_hostname);

let original_response = await fetch(url.href, {
method: method,
headers: new_request_headers,
body: request.body
})

connection_upgrade = new_request_headers.get("Upgrade");
if (connection_upgrade && connection_upgrade.toLowerCase() == "websocket") {
return original_response;
}

let original_response_clone = original_response.clone();
let original_text = null;
let response_headers = original_response.headers;
let new_response_headers = new Headers(response_headers);
let status = original_response.status;

if (disable_cache) {
new_response_headers.set('Cache-Control', 'no-store');
}

new_response_headers.set('access-control-allow-origin', '*');
new_response_headers.set('access-control-allow-credentials', true);
new_response_headers.delete('content-security-policy');
new_response_headers.delete('content-security-policy-report-only');
new_response_headers.delete('clear-site-data');

if (new_response_headers.get("x-pjax-url")) {
new_response_headers.set("x-pjax-url", response_headers.get("x-pjax-url").replace("//" + upstream_domain, "//" + url_hostname));
}

const content_type = new_response_headers.get('content-type');
if (content_type != null && content_type.includes('text/html') && content_type.includes('UTF-8')) {
original_text = await replace_response_text(original_response_clone, upstream_domain, url_hostname);
} else {
original_text = original_response_clone.body
}

response = new Response(original_text, {
status,
headers: new_response_headers
})
}
return response;
}

async function replace_response_text(response, upstream_domain, host_name) {
let text = await response.text()

var i, j;
for (i in replace_dict) {
j = replace_dict[i]
if (i == '$upstream') {
i = upstream_domain
} else if (i == '$custom_domain') {
i = host_name
}

if (j == '$upstream') {
j = upstream_domain
} else if (j == '$custom_domain') {
j = host_name
}

let re = new RegExp(i, 'g')
text = text.replace(re, j);
}
return text;
}


async function device_status(user_agent_info) {
var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
var flag = true;
for (var v = 0; v < agents.length; v++) {
if (user_agent_info.indexOf(agents[v]) > 0) {
flag = false;
break;
}
}
return flag;
}

选择触发器，将自己的域名执行worker（目前国内国内墙了worker的域名，但是没有墙IP，所以将自己的域名指向worker的ip）。添加自定义域。

配置完后，可以尝试下ping自己的域名，此时的ip应该就是指向了CloudFlare。

2、替换官方域名api.openai.com为自身代理域名

import openai
import os

openai.api_base = "https://自己的域名/v1"

openai.api_key = ('自己的key')
model_engine_id = "text-davinci-002"

prompt = "帮我生成一封邮件，约定下周一的见面时间和地点"
completions = openai.Completion.create(
engine=model_engine_id,
prompt=prompt,
max_tokens=300,
)

message = completions.choices[0].text.strip()
print(openai.api_base)
print(message)

执行结果：