Build and write Json object of objects to file - arrays

Question

I'm trying to take an array of strings that I receive from a Go API, and write them to a file in a weird json list format. There are not brackets [], so i have to create a "dimension" for each of the string values in the array. I'm trying to do this using types/structs, but i keep getting stuck (new at Go). Should i try and just use maps, or is there a way to accomplish this?
This is the code I am using right now:
package main
import (
"fmt"
"io/ioutil"
)
type Dimension struct {
SQL, Type string
}
type Measure struct {
Type string
DrillMembers []string
}
func check(e error) {
if e != nil {
panic(e)
}
}
func main() {
a := []string{"country", "year", "gdpPercap", "lifeExp", "pop", "continent"}
cubeSchema := "measures: {\n count: {\n type: `count`,\n drillMembers: "
for i, s := range a {
cubeSchema += s
fmt.Println(cubeSchema)
fmt.Println(i)
}
fileText := []byte(cubeSchema)
fmt.Println(cubeSchema)
err := ioutil.WriteFile("test.js", fileText, 0644)
check(err)
}
This is how I need the output to look:
measures: {
count: {
type: `count`,
drillMembers: [country]
}
},
dimensions: {
country: {
sql: `country`,
type: `string`
},
year: {
sql: `year`,
type: `string`
},
gdppercap: {
sql: `gdppercap`,
type: `string`
},
lifeexp: {
sql: `lifeexp`,
type: `string`
},
pop: {
sql: `pop`,
type: `string`
},
continent: {
sql: `continent`,
type: `string`
}
}
Right now I keep getting stuck with the following output:
measures: {
count: {
type: `count`,
drillMembers: countryyeargdpPercaplifeExppopcontinent

Answer 1

package main
import (
"fmt"
"io/ioutil"
)
func check(e error) {
if e != nil {
panic(e)
}
}
func main() {
schema := `measures: {
count: {
type: 'count',
drillMembers: [country]
}
},
dimensions: {
`
a := []string{"country", "year", "gdpPercap", "lifeExp", "pop", "continent"}
var cubeSchema string
for _, s := range a {
cubeSchema += s + ": {\n\tsql: " + s + ",\n\ttype: `string`\n},\n"
}
fileText := []byte(schema + cubeSchema + "}\n}")
fmt.Println(cubeSchema)
err := ioutil.WriteFile("test.js", fileText, 0644)
check(err)
}
check this code.

Answer 2

I tried to do the second part:
package main
import (
"encoding/json"
"fmt"
)
func main() {
a := []string{"country", "year", "gdpPercap", "lifeExp", "pop", "continent"}
var items map[string]sqlType
items = make(map[string]sqlType)
for _, v := range a {
items[v] = sqlType{SQL: v, Type: "string"}
}
dimensions := dimensions{Dimensions: items}
bytes, err := json.Marshal(dimensions)
if err != nil {
panic(err)
}
c := string(bytes)
fmt.Println(c)
}
type sqlType struct {
SQL string `json:"sql"`
Type string `json:"type"`
}
type dimensions struct {
Dimensions map[string]sqlType `json:"dimensions"`
}