json cannot unmarshal object into Go value of type

Question

I can t decode the json code below     any ideas why it doesn t work   See also play golang package main      import        quot encoding json quot                  type LocationReadable struct       District string     City     string     State    string        type Locale struct       Location         string     CountryCode      string     CurrencyId       string     CurrencySymbol   string     LocationReadable LocationReadable        type Media struct       Image string     Video string        type Variations struct       FixedPrice float64     Media      Media     Quantity   int        type PaymentData struct       PaymentName    string     PaymentService string        type Payment struct       Online  PaymentData     Offline PaymentData        type Shipping struct       ShippingService        string     ShippingName           string     ShippingCost           float64     HandlingTimeMax        int     DispatchTimeMin        int     DispatchTimeMax        int     ShippingAdditionalCost int    type Item   struct        version    string     CategoryId  string     Title       string     Media       Media     SellerId    string     Locale      Locale     ListingType string     Payment     Payment     StartTime   string     EndTime     string     Shipping    Shipping     TitleSlug   string     Variations  Variations      fpaiStatus string    func main         itemInfoR       quot locale quot    quot location quot   quot 51 51121389999999 -0 11982439999997041 quot   quot countryCode quot   quot GB quot   quot currencyId quot   quot GBP quot   quot currencySymbol quot   quot      quot   quot locationReadable quot    quot district quot   quot City of Westminster quot   quot city quot   quot London quot   quot state quot   quot Greater London quot     quot  version quot   quot serving quot   quot categoryId quot    quot Root quot   quot Cameras  u0026 Photo quot   quot Digital Cameras quot    quot title quot   quot many pictures quot   quot media quot    quot image quot    quot   lh5 ggpht com O o N6CFkClY5AV0-LqntpyFjor7Of4u23ZcK7lYwc2uY1ea7GWi61VDJZCB7UCb79svkjKPHIenqwEUhjHi0jdIQnnl6z p03yktPUB1FBHezIQ quot   quot   lh6 ggpht com ih3q2d7CenGLPyupH9FpfsoJQWQpw1i8wWA2Kd26bFnSF2fbnKyGU9WePIhCgEeqw5p6YMVmFi1c9oS0Ag93aF oZ3ZiwK7fQuSYIrZ9VhgXbrTHkw quot   quot   lh6 ggpht com 7RJRsapsnwWL3 KiLIjMz4QojDzUvsztXtvKTFvIfde AHccDnOibAvXRN73tTB4SeHzlj8S1LWxbYwwWFGn9elfCKdSb8BUIU5QJY1LO791HutQ quot   quot   lh6 ggpht com qAtjgyHAB734Ox 4NC fa-ZRqrCjCmJu0Tp8bo-HMO88duv8l4hhuv2REBkB--yneFzOL7annecVlGty-YsKouondiOFVnAZWzjpdrfsGfbL6wh2 quot   quot   lh3 ggpht com dWUbASepwHF4lHaXIPnpv4BNm2pCml9MlJt7s86s1cpu-PsYNmS0yQmKFKTM38q oMLW YJMJ19civ2gVViKAGYcZylRW7jN3w77AJvhzS6JE2g quot   quot   lh6 ggpht com 9aXLmPRVeZnxkwvNb3mWTF8kvfEY lho lOVVc9AbNqLb8GQmiS XXVZ3OKqMv2pxgYSayMYPPRh6ACYyh0H8KtS8mPD6MKUkEajwxkTtp5Q4Lo quot   quot   lh3 ggpht com FG QXZPHJ2tTYwI t5Fg1KqivglVg9RlJn0JRsu9Ox8vJ7IcBirb2IV I1LL 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quot   quot PayPal quot   quot paymentService quot   quot paypal quot     quot offline quot     quot paymentName quot   quot Pay on Pick-up quot   quot paymentService quot   quot payOnPickup quot      quot startTime quot   quot 2014-01-04T10 02 18 00 00 quot   quot endTime quot   quot 2014-04-04T10 02 18 00 00 quot   quot shipping quot     quot shippingService quot   quot economy quot   quot shippingName quot   quot Economy quot   quot shippingCost quot  1 0  quot handlingTimeMax quot  4  quot dispatchTimeMin quot  1  quot dispatchTimeMax quot  10  quot shippingAdditionalCost quot   quot 2 quot     quot shippingService quot   quot localPickup quot   quot shippingName quot   quot Local Pick-Up quot   quot shippingCost quot  0 0  quot handlingTimeMax quot  2  quot dispatchTimeMin quot  0  quot dispatchTimeMax quot  0  quot shippingAdditionalCost quot   quot 0 quot     quot titleSlug quot   quot many-pictures quot   quot variations quot     quot fixedPrice quot  222999 0  quot media quot    quot image quot    quot   lh6 ggpht com ih3q2d7CenGLPyupH9FpfsoJQWQpw1i8wWA2Kd26bFnSF2fbnKyGU9WePIhCgEeqw5p6YMVmFi1c9oS0Ag93aF oZ3ZiwK7fQuSYIrZ9VhgXbrTHkw quot   quot   lh6 ggpht com 9aXLmPRVeZnxkwvNb3mWTF8kvfEY lho lOVVc9AbNqLb8GQmiS XXVZ3OKqMv2pxgYSayMYPPRh6ACYyh0H8KtS8mPD6MKUkEajwxkTtp5Q4Lo quot   quot   lh3 ggpht com FG QXZPHJ2tTYwI t5Fg1KqivglVg9RlJn0JRsu9Ox8vJ7IcBirb2IV I1LL WVOMxfTuBBSDLMlrw9v0MCAdmnPCR29sCbRGjhm6zEfIH-3q2QSdw quot    quot video quot       quot quantity quot  1121  quot Brand quot   quot Bell  u0026 Howell quot     quot fixedPrice quot  211 0  quot media quot    quot image quot    quot   lh6 ggpht com qAtjgyHAB734Ox 4NC fa-ZRqrCjCmJu0Tp8bo-HMO88duv8l4hhuv2REBkB--yneFzOL7annecVlGty-YsKouondiOFVnAZWzjpdrfsGfbL6wh2 quot   quot   lh3 ggpht com FG QXZPHJ2tTYwI t5Fg1KqivglVg9RlJn0JRsu9Ox8vJ7IcBirb2IV I1LL WVOMxfTuBBSDLMlrw9v0MCAdmnPCR29sCbRGjhm6zEfIH-3q2QSdw quot   quot   lh6 ggpht com 9aXLmPRVeZnxkwvNb3mWTF8kvfEY lho lOVVc9AbNqLb8GQmiS XXVZ3OKqMv2pxgYSayMYPPRh6ACYyh0H8KtS8mPD6MKUkEajwxkTtp5Q4Lo quot   quot   lh3 ggpht com MOrI-zKNMNrQE aHj5hzbojP3T0hEMJKK6K8UO3e1NBC-nkcQeIM1QnvtJdT G-W4e7-qv4BiqwdWcNHBpZXOmmX3tcuYEV8u ANEoa9 aUIfeyg quot    quot video quot       quot quantity quot  2  quot Brand quot   quot Fujifilm quot     quot fixedPrice quot  22 0  quot media quot    quot image quot    quot   lh3 ggpht com jgOebMihBoIZvHE4EOklJvZ k-9egjNIlUKfKFcLkvXJs8g2FXjPvdFUbwqGrkHrMtyis8uOvgt-E51Vm11hq4bieh7h0cegca0VI4vFtFaAemU quot   quot   lh3 ggpht com MOrI-zKNMNrQE aHj5hzbojP3T0hEMJKK6K8UO3e1NBC-nkcQeIM1QnvtJdT G-W4e7-qv4BiqwdWcNHBpZXOmmX3tcuYEV8u ANEoa9 aUIfeyg quot   quot   lh4 ggpht com anYJHqkMCkuhmIHQTBspLtWcDTyx1ZRe84 q5pAgVEOVmsKkaKhS725N4YFoj2zpJrBP7iTC2vf1GUtrp6H7kkm8c1k6zkW6I Gf5f9A3re I8Ex quot    quot video quot       quot quantity quot  12  quot Brand quot   quot Gateway quot     quot  fpaiStatus quot   quot published quot        itemInfoBytes      byte itemInfoR      var ItemInfo Item     er    json Unmarshal itemInfoBytes   amp ItemInfo      if er    nil           panic er

User · Answer

Determining of root cause is not an issue since Go 1 8  field name now is shown in the error message   json  cannot unmarshal object into Go struct field Comment author of type string

User · Answer

Here s a fixed version of it  http   play golang org p w2ZcOzGHKR  The biggest fix that was needed is when Unmarshalling an array  that property needs to be an array slice in the struct as well   For example      things     a    b    c       Would Unmarshal into a   type Item struct       Things   string     And not into   type Item struct       Things string     The other thing to watch out for when Unmarshaling is that the types line up exactly  It will fail when Unmarshalling a JSON string representation of a number into an int or float field --  1  needs to Unmarshal into a string  not into an int like we saw with ShippingAdditionalCost int

User · Answer

You JSON doesn t match your struct fields  E g   district  in JSON and  District  as the field   Also  Your Item is a slice type but your JSON is a dict value  Do not mix this up  Slices decode from arrays

[json] json: cannot unmarshal object into Go value of type

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