http: return ?string
parent
ba6bcdb469
commit
4a1970a322
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@ -5,7 +5,10 @@
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import http
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import http
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fn main() {
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fn main() {
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html := http.get('https://news.ycombinator.com')
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html := http.get('https://news.ycombinator.com') or {
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println('Failed fetching from URL')
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return
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}
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mut pos := 0
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mut pos := 0
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for {
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for {
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pos = html.index_after('https://', pos + 1)
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pos = html.index_after('https://', pos + 1)
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@ -33,7 +33,10 @@ fn (f mut Fetcher) fetch() {
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id := f.ids[f.cursor]
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id := f.ids[f.cursor]
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f.cursor++
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f.cursor++
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f.mu.unlock()
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f.mu.unlock()
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resp := http.get('https://hacker-news.firebaseio.com/v0/item/${id}.json')
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resp := http.get('https://hacker-news.firebaseio.com/v0/item/${id}.json') or {
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println('failed to fetch data from /v0/item/${id}.json')
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exit(1)
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}
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story := json.decode(Story, resp) or {
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story := json.decode(Story, resp) or {
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println('failed to decode a story')
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println('failed to decode a story')
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exit(1)
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exit(1)
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@ -48,9 +51,12 @@ fn (f mut Fetcher) fetch() {
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// Fetches top HN stories in 8 coroutines
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// Fetches top HN stories in 8 coroutines
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fn main() {
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fn main() {
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resp := http.get('https://hacker-news.firebaseio.com/v0/topstories.json')
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resp := http.get('https://hacker-news.firebaseio.com/v0/topstories.json') or {
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println('failed to fetch data from /v0/topstories.json')
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return
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}
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ids := json.decode( []int, resp) or {
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ids := json.decode( []int, resp) or {
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println('failed to fetch topstories.json')
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println('failed to decode topstories.json')
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return
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return
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}
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}
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fetcher := &Fetcher{ids: ids}
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fetcher := &Fetcher{ids: ids}
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@ -28,23 +28,32 @@ pub:
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}
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}
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// embed 'http'
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// embed 'http'
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pub fn get(url string) string {
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pub fn fetch(typ, url, data string) ?Response {
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if url == '' {
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req := new_request('GET', url, '') or {
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println('http: empty get url')
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return error(err)
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return ''
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}
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}
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mut req := new_request('GET', url, '')
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resp := req.do()
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resp := req.do()
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return resp
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}
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pub fn get(url string) ?string {
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resp := fetch('GET', url, '') or {
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return error(err)
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}
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return resp.body
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return resp.body
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}
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}
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pub fn post(url, data string) string {
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pub fn post(url, data string) ?string {
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req := new_request('POST', url, data)
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resp := fetch('POST', url, data) or {
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resp := req.do()
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return error(err)
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}
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return resp.body
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return resp.body
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}
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}
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pub fn new_request(typ, _url, _data string) *Request {
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pub fn new_request(typ, _url, _data string) ?Request {
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if _url == '' {
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return error('http: empty url')
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}
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mut url := _url
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mut url := _url
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mut data := _data
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mut data := _data
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// req.headers['User-Agent'] = 'V $VERSION'
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// req.headers['User-Agent'] = 'V $VERSION'
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@ -54,7 +63,7 @@ pub fn new_request(typ, _url, _data string) *Request {
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data = ''
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data = ''
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}
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}
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// req.headers = new_map(0, sizeof(string))// []string{}
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// req.headers = new_map(0, sizeof(string))// []string{}
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return &Request {
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return Request {
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typ: typ
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typ: typ
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url: url
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url: url
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data: data
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data: data
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@ -64,12 +73,6 @@ pub fn new_request(typ, _url, _data string) *Request {
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}
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}
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}
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}
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/*
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fn (req &Request) do() Response {
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mut resp := Response{}
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return resp
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}
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*/
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fn (req mut Request) free() {
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fn (req mut Request) free() {
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req.headers.free()
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req.headers.free()
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}
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}
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