add task
This commit is contained in:
parent
2fcdc91587
commit
489bc792e1
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@ -1,60 +0,0 @@
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package main
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import (
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"git.tuxpa.in/a/lambda"
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"git.tuxpa.in/a/lambda/parallel"
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)
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type RequestContext[T any] struct {
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req http.Request
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ans T
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err error
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}
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func (r *RequestContext[T]) String() string {
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return fmt.Sprintf("%+v", r.ans)
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}
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func (_ *RequestContext[T]) Do() func(r *RequestContext[T]) *RequestContext[T] {
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return func(r *RequestContext[T]) *RequestContext[T] {
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r.ans = *new(T)
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res, err := http.DefaultClient.Do(&r.req)
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if err != nil {
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r.err = err
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return r
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}
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defer res.Body.Close()
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r.err = json.NewDecoder(res.Body).Decode(&r.ans)
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return r
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}
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}
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func (_ *RequestContext[T]) FilterErr() func(r *RequestContext[T]) bool {
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return func(r *RequestContext[T]) bool {
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return r.err == nil
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}
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}
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type someResult struct {
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Title string `json:"title"`
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Id int `json:"id"`
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}
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func main() {
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var requests = make([]*RequestContext[someResult], 20)
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for i := range requests {
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r, _ := http.NewRequest("GET", fmt.Sprintf("https://jsonplaceholder.typicode.com/todos/%d", i+1), nil)
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requests[i] = &RequestContext[someResult]{
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req: *r,
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}
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}
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results := lambda.Filter(parallel.Map(requests, requests[0].Do(), 4), requests[0].FilterErr())
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for _, v := range results {
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log.Printf("%s", v)
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}
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}
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@ -0,0 +1,30 @@
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package main
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import (
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"fmt"
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"log"
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"net/http"
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"git.tuxpa.in/a/lambda"
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"git.tuxpa.in/a/lambda/parallel"
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"git.tuxpa.in/a/lambda/task"
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)
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type someResult struct {
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Title string `json:"title"`
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Id int `json:"id"`
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}
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func main() {
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var requests = make([]*task.HttpRequest[someResult], 20)
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for i := range requests {
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r, _ := http.NewRequest("GET", fmt.Sprintf("https://jsonplaceholder.typicode.com/todos/%d", i+1), nil)
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requests[i] = &task.HttpRequest[someResult]{
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Req: *r,
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}
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}
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results := lambda.Filter(parallel.Map(requests, requests[0].Json(), 4), requests[0].NoErr())
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for _, v := range results {
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log.Printf("%s", v)
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}
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}
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@ -1,43 +0,0 @@
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package main
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import (
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"git.tuxpa.in/a/lambda/parallel"
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)
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type someResult struct {
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Title string `json:"title"`
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Id int `json:"id"`
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}
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func main() {
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var requests = make([]*http.Request, 20)
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for i := range requests {
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r, _ := http.NewRequest("GET", fmt.Sprintf("https://jsonplaceholder.typicode.com/todos/%d", i), nil)
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requests[i] = r
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}
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results, errs := parallel.MapErrorV(requests, func(r *http.Request) (*someResult, error) {
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out := &someResult{}
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res, err := http.DefaultClient.Do(r)
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if err != nil {
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return nil, err
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}
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defer res.Body.Close()
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err = json.NewDecoder(res.Body).Decode(out)
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return out, err
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}, 4)
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for i, v := range results {
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if errs[i] != nil {
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log.Printf("err: %s", errs[i])
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} else {
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log.Printf("result: %+v", v)
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}
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}
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}
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@ -0,0 +1,55 @@
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package task
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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)
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type DecoderFunc func(r io.Reader) Decoder
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type Decoder interface {
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Decode(any) error
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}
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type HttpRequest[T any] struct {
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Req http.Request
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ans T
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err error
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}
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func (r *HttpRequest[T]) String() string {
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return fmt.Sprintf("%+v", r.ans)
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}
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func (_ *HttpRequest[T]) With(df DecoderFunc) func(r *HttpRequest[T]) *HttpRequest[T] {
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return func(r *HttpRequest[T]) *HttpRequest[T] {
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r.ans = *new(T)
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res, err := http.DefaultClient.Do(&r.Req)
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if err != nil {
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r.err = err
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return r
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}
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defer res.Body.Close()
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r.err = df(res.Body).Decode(&r.ans)
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return r
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}
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}
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func (z *HttpRequest[T]) Json() func(r *HttpRequest[T]) *HttpRequest[T] {
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return z.With(func(r io.Reader) Decoder {
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return json.NewDecoder(r)
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})
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}
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func (_ *HttpRequest[T]) NoErr() func(r *HttpRequest[T]) bool {
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return func(r *HttpRequest[T]) bool {
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return r.err == nil
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}
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}
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type someResult struct {
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Title string `json:"title"`
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Id int `json:"id"`
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}
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