How to encode url parameters in golang?

Question

Is there any go package to encode url?I need to encode a parameter(type in map[string]interface{}) before it was transfered in url.

Maybe the parameter likes:map[string]interface{}{"app_id":"you_api","app_sign":"md5_base_16","timestamp":"1473655478000"} How to encode it and what the encoded result would be?

Please add how the generated URL should look like. Currently the question is too vague. — Roland Illig
– Roland Illig, Commented Sep 12, 2016 at 6:49
host:port/path?para={"key1": value1,"key2":"value2"}, I want to encode the parameter(in map structure) and transport it with json_encoded @RolandIllig — shaidiren
– shaidiren, Commented Sep 13, 2016 at 3:16

shaidiren · Accepted Answer · 2016-09-12 05:31:03Z

There is the one of method to get it.

package main import ( "fmt" "net/url" "encoding/json" ) func main() { m := map[string]interface{}{"app_id": "you_api", "app_sign": "md5_base_16", "timestamp": "1473655478000"} json_str, _ := json.Marshal(m) fmt.Println(string(json_str[:])) values := url.Values{"para": {string(json_str[:])}} fmt.Println(values.Encode()) }

alessiosavi · Accepted Answer · 2019-09-25 19:14:15Z

Here you can view how to urlencode a 'key-set' for send a request (like query params or form values)

import "net/url" encoded := url.Values{} encoded.Set("grant_type", "urn:ibm:params:oauth:grant-type:apikey") encoded.Set("apikey", conf.Apikey)

For further information have a look here: https://github.com/alessiosavi/GoCloudant/blob/a8ad3a7990f04ea728bb327d6faea6af3e5455ca/cloudant.go#L117

Here a few-lines-library that wrap the builtin library for execute HTTP request used in the previous code: https://github.com/alessiosavi/Requests

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