110 lines
3.0 KiB
Go
110 lines
3.0 KiB
Go
package itglue
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import (
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"net/url"
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)
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func check(err error) {
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if err != nil {
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log.Fatal(err)
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}
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}
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//ITGAPI contains the ITG API URL for North America, as well as the API key.
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//Think of it as an instance of the API client
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type ITGAPI struct {
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Site string //Full URL ITG API
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APIKey string //API Key
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}
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//NewITGAPI expects the API key to be passed to it
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//Returns a pointer to an ITGAPI struct
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func NewITGAPI(apiKey string) *ITGAPI {
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return &ITGAPI{Site: "https://api.itglue.com", APIKey: apiKey}
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}
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func getHTTPResponseBody(resp *http.Response) []byte {
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if resp.StatusCode != http.StatusOK {
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out := fmt.Sprintf("ITG returned HTTP status code %s\n%s", resp.Status, resp.Body)
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log.Fatal(out)
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return make([]byte, 0) //TBD: Don't hack
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}
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body, err := ioutil.ReadAll(resp.Body)
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check(err)
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return body
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}
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//BuildURL expects a restaction to be passed to it
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//Returns the full request URL containing the ITG API domain prepended to the rest action
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func (itg *ITGAPI) BuildURL(restAction string) *url.URL {
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var URL *url.URL
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URL, err := url.Parse(itg.Site)
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check(err)
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URL.Path += restAction
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return URL
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}
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//GetRequest allows a custom GET request to the API to be made.
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//Also used internally by this package by the binding functions
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//Expects URL to be passed
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//Returns the response body as a byte slice
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func (itg *ITGAPI) GetRequest(URL *url.URL) []byte {
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client := &http.Client{}
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req, err := http.NewRequest("GET", URL.String(), nil)
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check(err)
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req.Header.Set("Content-Type", "application/vnd.api+json")
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req.Header.Set("x-api-key", itg.APIKey)
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req.Header.Set("cache-control", "no-cache")
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response, err := client.Do(req)
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check(err)
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defer response.Body.Close()
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return getHTTPResponseBody(response)
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}
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//PostRequest allows a custom POST request tot he API to be made
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//Also used internally by this package by the binding functions
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//Expects a URL and a body to be passed
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//Returns the response body as a byte slice
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func (itg *ITGAPI) PostRequest(URL *url.URL, body io.Reader) []byte {
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client := &http.Client{}
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req, err := http.NewRequest("POST", URL.String(), body)
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check(err)
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req.Header.Set("Content-Type", "application/vnd.api+json")
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req.Header.Set("x-api-key", itg.APIKey)
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req.Header.Set("cache-control", "no-cache")
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response, err := client.Do(req)
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check(err)
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defer response.Body.Close()
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return getHTTPResponseBody(response)
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}
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//PatchRequest allows a custom PATCH request tot he API to be made
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//Also used internally by this package by the binding functions
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//Expects a URL and a body to be passed
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//Returns the response body as a byte slice
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func (itg *ITGAPI) PatchRequest(URL *url.URL, body io.Reader) []byte {
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client := &http.Client{}
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req, err := http.NewRequest("PATCH", URL.String(), body)
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check(err)
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req.Header.Set("Content-Type", "application/vnd.api+json")
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req.Header.Set("x-api-key", itg.APIKey)
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req.Header.Set("cache-control", "no-cache")
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response, err := client.Do(req)
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check(err)
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defer response.Body.Close()
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return getHTTPResponseBody(response)
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}
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