Loop over nested JSON elements in Go -


i receiving json response api contains 1 or more "entities". json looks this:

{     "3211": {         "entity_id": "3211",         "status": "complete",         "coupon_code": "coupon",         "shipping_description": "shipping - au courier",         "customer_id": "2775",         "base_discount_amount": "-50.0000",         "base_grand_total": "149.0000",         "base_shipping_amount": "0.0000",         "base_shipping_tax_amount": "0.0000",         "base_subtotal": "199.0000",         "base_tax_amount": "0.0000",         "base_total_paid": "149.0000",         "base_total_refunded": null,         "discount_amount": "-50.0000",         "grand_total": "149.0000",         "shipping_amount": "0.0000",         "shipping_tax_amount": "0.0000",         "store_to_order_rate": "1.0000",         "subtotal": "199.0000",         "tax_amount": "0.0000",         "total_paid": "149.0000",         "total_refunded": null,         "base_shipping_discount_amount": "0.0000",         "base_subtotal_incl_tax": "199.0000",         "base_total_due": "0.0000",         "shipping_discount_amount": "0.0000",         "subtotal_incl_tax": "199.0000",         "total_due": "0.0000",         "increment_id": "200000423",         "base_currency_code": "aud",         "discount_description": "coupon",         "remote_ip": "123.123.123.123",         "store_currency_code": "aud",         "store_name": "australia",         "created_at": "2017-07-17 03:07:40",         "shipping_incl_tax": "0.0000",         "payment_method": "ewayrapid_ewayone",         "gift_message_from": null,         "gift_message_to": null,         "gift_message_body": null,         "tax_name": null,         "tax_rate": null,         "addresses": [             {                 "region": "south australia",                 "postcode": "5000",                 "lastname": "doe",                 "street": "level 6\n25 example street",                 "city": "adelaide",                 "email": "example@email.com",                 "telephone": "+61 123 456 789",                 "country_id": "au",                 "firstname": "john",                 "address_type": "billing",                 "prefix": null,                 "middlename": null,                 "suffix": null,                 "company": null             },             {                 "region": "south australia",                 "postcode": "5000",                 "lastname": "doe",                 "street": "level 6\n25 example street",                 "city": "adelaide",                 "email": "example@email.com",                 "telephone": "+61 123 456 789",                 "country_id": "au",                 "firstname": "john",                 "address_type": "shipping",                 "prefix": null,                 "middlename": null,                 "suffix": null,                 "company": null             }         ]     } }

i have written following struct types:

type orders map[string]order type order struct {     entityid                   string                    `json:"entity_id"`     status                     string                    `json:"status"`     couponcode                 string                    `json:"coupon_code"`     shippingdescription        string                    `json:"shipping_description"`     customerid                 string                    `json:"customer_id"`     basediscountamount         string                    `json:"base_discount_amount"`     basegrandtotal             string                    `json:"base_grand_total"`     baseshippingamount         string                    `json:"base_shipping_amount"`     baseshippingtaxamount      string                    `json:"base_shipping_tax_amount"`     basesubtotal               string                    `json:"base_subtotal"`     basetaxamount              string                    `json:"base_tax_amount"`     basetotalpaid              string                    `json:"base_total_paid"`     basetotalrefunded          string                    `json:"base_total_refunded"`     discountamount             string                    `json:"discount_amount"`     grandtotal                 string                    `json:"grand_total"`     shippingamount             string                    `json:"shipping_amount"`     shippingtaxamount          string                    `json:"shipping_tax_amount"`     storetoorderrate           string                    `json:"store_to_order_rate"`     subtotal                   string                    `json:"subtotal"`     taxamount                  string                    `json:"tax_amount"`     totalpaid                  string                    `json:"total_paid"`     totalrefunded              string                    `json:"total_refunded"`     baseshippingdiscountamount string                    `json:"base_shipping_discount_amount"`     basesubtotalincltax        string                    `json:"base_subtotal_incl_tax"`     basetotaldue               string                    `json:"base_total_due"`     shippingdiscountamount     string                    `json:"shipping_discount_amount"`     subtotalincltax            string                    `json:"subtotal_incl_tax"`     totaldue                   string                    `json:"total_due"`     incrementid                string                    `json:"increment_id"`     basecurrencycode           string                    `json:"base_currency_code"`     discountdescription        string                    `json:"discount_description"`     remoteip                   string                    `json:"remote_ip"`     storecurrencycode          string                    `json:"store_currency_code"`     storename                  string                    `json:"store_name"`     createdat                  string                    `json:"created_at"`     shippingincltax            string                    `json:"shipping_incl_tax"`     paymentmethod              string                    `json:"payment_method"`     taxname                    string                    `json:"tax_name"`     taxrate                    string                    `json:"tax_rate"`     addresses                  map[string]orderaddresses `json:"addresses"` }  type orderaddresses []struct {     region      string  `json:"region"`     postcode    string  `json:"postcode"`     lastname    string  `json:"lastname"`     street      string  `json:"street"`     city        string  `json:"city"`     email       string  `json:"email"`     telephone   string  `json:"telephone"`     countryid   string  `json:"country_id"`     firstname   string  `json:"firstname"`     addresstype string  `json:"address_type"`     prefix      *string `json:"prefix"`     middlename  *string `json:"middlename"`     suffix      *string `json:"suffix"`     company     *string `json:"company"` }

i trying process (the getfromordersapi(page) function returns json mentioned above in orders type):

for page := 1; page < 3; page++ {     orders := getfromordersapi(page)     _, order := range orders {         //process order items except addresses         fmt.println("processing entity:", orders.entityid)          _, orderaddress := range order.addresses {             //trying access address values - example below             fmt.println(orderaddress.region)         }     } }

when running this, error:

orderaddress.region undefined (type orderaddresses has no field or method region)

where going wrong?

the error getting due way defining orderaddresses struct. instead of

type orderaddresses []struct {

if use

type orderaddresses struct {

without braces, compile error should go away.

that being said, i'm not sure if json parse expect given blob i'm looking at. appears addresses in json blob array. means instead of representing as

addresses map[string]orderaddresses `json:"addresses"`

you should make slice of orderaddresses

addresses []orderaddresses `json:"addresses"`

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