Sample code for 30+ languages & platforms
Objective-C

Loading and Parsing a Complex JSON Array

See more JSON Examples

This example loads a JSON array containing more complex data. It shows how to parse (access) various values contained within the JSON.

Chilkat Objective-C Downloads

Objective-C
#import <CkoStringBuilder.h>
#import <CkoJsonArray.h>
#import <CkoJsonObject.h>

BOOL success = NO;

// This is the JSON we'll be loading:

// 	[
// 	  {
// 	    "telefones": [
// 	      {
// 	        "numero": "19995555555",
// 	        "tipo": "T",
// 	        "id": 2541437
// 	      } 
// 	    ],
// 	    "cnpj": "11395551000164",
// 	    "rua": "R XAVIER AUGUSTO ROGGE, 22",
// 	    "complemento": "",
// 	    "contatos": [
// 	    ],
// 	    "tipo": "J",
// 	    "razao_social": "SOUP BRASIL LTDA - ME",
// 	    "nome_fantasia": "SOUP BRASIL",
// 	    "bairro": "ABC DOS COLIBRIS",
// 	    "cidade": "TEST",
// 	    "inscricao_estadual": "222.102.222.116",
// 	    "observacao": "",
// 	    "id": 2209595,
// 	    "ultima_alteracao": "2016-12-26 16:22:34",
// 	    "cep": "13555000",
// 	    "suframa": "",
// 	    "estado": "SP",
// 	    "emails": [
// 	      {
// 	        "email": "somebody@terra.com.br",
// 	        "tipo": "T",
// 	        "id": 1065557
// 	      } 
// 	    ],
// 	    "excluido": false
// 	  },
// 	  {
// 	    "telefones": [
// 	    ],
// 	    "cnpj": "12496555500180",
// 	    "rua": "AV ROLF WIEST, 100",
// 	    "complemento": "ANDAR 7 SALA 612 A 620",
// 	    "contatos": [
// 	    ],
// 	    "tipo": "J",
// 	    "razao_social": "SIMPLE SOFTWARE LTDA",
// 	    "nome_fantasia": "",
// 	    "bairro": "DOM ZETIRO",
// 	    "cidade": "APARTVILLE",
// 	    "inscricao_estadual": "",
// 	    "observacao": "",
// 	    "id": 2255594,
// 	    "ultima_alteracao": "2016-12-26 16:28:31",
// 	    "cep": "89255505",
// 	    "suframa": "",
// 	    "estado": "SC",
// 	    "emails": [
// 	    ],
// 	    "excluido": false
// 	  },
// 	  {
// 	    "telefones": [
// 	      {
// 	        "numero": "1938655556",
// 	        "tipo": "T",
// 	        "id": 2555438
// 	      } 
// 	    ],
// 	    "cnpj": "00003555500153",
// 	    "rua": "AV ABCDEF PINTO CATAO, 18",
// 	    "complemento": "",
// 	    "contatos": [
// 	      {
// 	        "telefones": [
// 	          {
// 	            "numero": "1999655554",
// 	            "tipo": "T",
// 	            "id": 2555559
// 	          } 
// 	        ],
// 	        "cargo": "zzz de compras",
// 	        "nome": "Gerard",
// 	        "emails": [
// 	          {
// 	            "email": "gerard@terra.com.br",
// 	            "tipo": "T",
// 	            "id": 1065559
// 	          } 
// 	        ],
// 	        "id": 844485,
// 	        "excluido": false
// 	      } 
// 	    ],
// 	    "tipo": "J",
// 	    "razao_social": "TIDY TECNOLOGIA LTDA - EPP",
// 	    "nome_fantasia": "TIDY",
// 	    "bairro": "TUNA",
// 	    "cidade": "JAGUAR",
// 	    "inscricao_estadual": "395.222.441.222",
// 	    "observacao": "ligar sempre depois das 14hs",
// 	    "id": 2255597,
// 	    "ultima_alteracao": "2016-12-28 07:31:52",
// 	    "cep": "13555500",
// 	    "suframa": "",
// 	    "estado": "SP",
// 	    "emails": [
// 	      {
// 	        "email": "xi@tidy.com.br",
// 	        "tipo": "T",
// 	        "id": 10655558
// 	      } 
// 	    ],
// 	    "excluido": false
// 	  } 
// 	]
// 

// Construct a StringBuilder containing the above JSON array.
CkoStringBuilder *sb = [[CkoStringBuilder alloc] init];
BOOL bCrlf = YES;
[sb AppendLine: @"[" crlf: bCrlf];
[sb AppendLine: @"  {" crlf: bCrlf];
[sb AppendLine: @"    \"telefones\": [" crlf: bCrlf];
[sb AppendLine: @"      {" crlf: bCrlf];
[sb AppendLine: @"        \"numero\": \"19995555555\"," crlf: bCrlf];
[sb AppendLine: @"        \"tipo\": \"T\"," crlf: bCrlf];
[sb AppendLine: @"        \"id\": 2541437" crlf: bCrlf];
[sb AppendLine: @"      }" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"cnpj\": \"11395551000164\"," crlf: bCrlf];
[sb AppendLine: @"    \"rua\": \"R XAVIER AUGUSTO ROGGE, 22\"," crlf: bCrlf];
[sb AppendLine: @"    \"complemento\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"contatos\": [" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"tipo\": \"J\"," crlf: bCrlf];
[sb AppendLine: @"    \"razao_social\": \"SOUP BRASIL LTDA - ME\"," crlf: bCrlf];
[sb AppendLine: @"    \"nome_fantasia\": \"SOUP BRASIL\"," crlf: bCrlf];
[sb AppendLine: @"    \"bairro\": \"ABC DOS COLIBRIS\"," crlf: bCrlf];
[sb AppendLine: @"    \"cidade\": \"TEST\"," crlf: bCrlf];
[sb AppendLine: @"    \"inscricao_estadual\": \"222.102.222.116\"," crlf: bCrlf];
[sb AppendLine: @"    \"observacao\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"id\": 2209595," crlf: bCrlf];
[sb AppendLine: @"    \"ultima_alteracao\": \"2016-12-26 16:22:34\"," crlf: bCrlf];
[sb AppendLine: @"    \"cep\": \"13555000\"," crlf: bCrlf];
[sb AppendLine: @"    \"suframa\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"estado\": \"SP\"," crlf: bCrlf];
[sb AppendLine: @"    \"emails\": [" crlf: bCrlf];
[sb AppendLine: @"      {" crlf: bCrlf];
[sb AppendLine: @"        \"email\": \"somebody@terra.com.br\"," crlf: bCrlf];
[sb AppendLine: @"        \"tipo\": \"T\"," crlf: bCrlf];
[sb AppendLine: @"        \"id\": 1065557" crlf: bCrlf];
[sb AppendLine: @"      }" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"excluido\": false" crlf: bCrlf];
[sb AppendLine: @"  }," crlf: bCrlf];
[sb AppendLine: @"  {" crlf: bCrlf];
[sb AppendLine: @"    \"telefones\": [" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"cnpj\": \"12496555500180\"," crlf: bCrlf];
[sb AppendLine: @"    \"rua\": \"AV ROLF WIEST, 100\"," crlf: bCrlf];
[sb AppendLine: @"    \"complemento\": \"ANDAR 7 SALA 612 A 620\"," crlf: bCrlf];
[sb AppendLine: @"    \"contatos\": [" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"tipo\": \"J\"," crlf: bCrlf];
[sb AppendLine: @"    \"razao_social\": \"SIMPLE SOFTWARE LTDA\"," crlf: bCrlf];
[sb AppendLine: @"    \"nome_fantasia\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"bairro\": \"DOM ZETIRO\"," crlf: bCrlf];
[sb AppendLine: @"    \"cidade\": \"APARTVILLE\"," crlf: bCrlf];
[sb AppendLine: @"    \"inscricao_estadual\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"observacao\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"id\": 2255594," crlf: bCrlf];
[sb AppendLine: @"    \"ultima_alteracao\": \"2016-12-26 16:28:31\"," crlf: bCrlf];
[sb AppendLine: @"    \"cep\": \"89255505\"," crlf: bCrlf];
[sb AppendLine: @"    \"suframa\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"estado\": \"SC\"," crlf: bCrlf];
[sb AppendLine: @"    \"emails\": [" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"excluido\": false" crlf: bCrlf];
[sb AppendLine: @"  }," crlf: bCrlf];
[sb AppendLine: @"  {" crlf: bCrlf];
[sb AppendLine: @"    \"telefones\": [" crlf: bCrlf];
[sb AppendLine: @"      {" crlf: bCrlf];
[sb AppendLine: @"        \"numero\": \"1938655556\"," crlf: bCrlf];
[sb AppendLine: @"        \"tipo\": \"T\"," crlf: bCrlf];
[sb AppendLine: @"        \"id\": 2555438" crlf: bCrlf];
[sb AppendLine: @"      }" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"cnpj\": \"00003555500153\"," crlf: bCrlf];
[sb AppendLine: @"    \"rua\": \"AV ABCDEF PINTO CATAO, 18\"," crlf: bCrlf];
[sb AppendLine: @"    \"complemento\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"contatos\": [" crlf: bCrlf];
[sb AppendLine: @"      {" crlf: bCrlf];
[sb AppendLine: @"        \"telefones\": [" crlf: bCrlf];
[sb AppendLine: @"          {" crlf: bCrlf];
[sb AppendLine: @"            \"numero\": \"1999655554\"," crlf: bCrlf];
[sb AppendLine: @"            \"tipo\": \"T\"," crlf: bCrlf];
[sb AppendLine: @"            \"id\": 2555559" crlf: bCrlf];
[sb AppendLine: @"          }" crlf: bCrlf];
[sb AppendLine: @"        ]," crlf: bCrlf];
[sb AppendLine: @"        \"cargo\": \"zzz de compras\"," crlf: bCrlf];
[sb AppendLine: @"        \"nome\": \"Gerard\"," crlf: bCrlf];
[sb AppendLine: @"        \"emails\": [" crlf: bCrlf];
[sb AppendLine: @"          {" crlf: bCrlf];
[sb AppendLine: @"            \"email\": \"gerard@terra.com.br\"," crlf: bCrlf];
[sb AppendLine: @"            \"tipo\": \"T\"," crlf: bCrlf];
[sb AppendLine: @"            \"id\": 1065559" crlf: bCrlf];
[sb AppendLine: @"          }" crlf: bCrlf];
[sb AppendLine: @"        ]," crlf: bCrlf];
[sb AppendLine: @"        \"id\": 844485," crlf: bCrlf];
[sb AppendLine: @"        \"excluido\": false" crlf: bCrlf];
[sb AppendLine: @"      }" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"tipo\": \"J\"," crlf: bCrlf];
[sb AppendLine: @"    \"razao_social\": \"TIDY TECNOLOGIA LTDA - EPP\"," crlf: bCrlf];
[sb AppendLine: @"    \"nome_fantasia\": \"TIDY\"," crlf: bCrlf];
[sb AppendLine: @"    \"bairro\": \"TUNA\"," crlf: bCrlf];
[sb AppendLine: @"    \"cidade\": \"JAGUAR\"," crlf: bCrlf];
[sb AppendLine: @"    \"inscricao_estadual\": \"395.222.441.222\"," crlf: bCrlf];
[sb AppendLine: @"    \"observacao\": \"ligar sempre depois das 14hs\"," crlf: bCrlf];
[sb AppendLine: @"    \"id\": 2255597," crlf: bCrlf];
[sb AppendLine: @"    \"ultima_alteracao\": \"2016-12-28 07:31:52\"," crlf: bCrlf];
[sb AppendLine: @"    \"cep\": \"13555500\"," crlf: bCrlf];
[sb AppendLine: @"    \"suframa\": \"\"," crlf: bCrlf];
[sb AppendLine: @"    \"estado\": \"SP\"," crlf: bCrlf];
[sb AppendLine: @"    \"emails\": [" crlf: bCrlf];
[sb AppendLine: @"      {" crlf: bCrlf];
[sb AppendLine: @"        \"email\": \"xi@tidy.com.br\"," crlf: bCrlf];
[sb AppendLine: @"        \"tipo\": \"T\"," crlf: bCrlf];
[sb AppendLine: @"        \"id\": 10655558" crlf: bCrlf];
[sb AppendLine: @"      }" crlf: bCrlf];
[sb AppendLine: @"    ]," crlf: bCrlf];
[sb AppendLine: @"    \"excluido\": false" crlf: bCrlf];
[sb AppendLine: @"  }" crlf: bCrlf];
[sb AppendLine: @"]" crlf: bCrlf];

// Load the JSON array into a JsonArray:
CkoJsonArray *jsonArray = [[CkoJsonArray alloc] init];
success = [jsonArray LoadSb: sb];
if (success != YES) {
    NSLog(@"%@",jsonArray.LastErrorText);
    return;
}

// Get some information from each record in the array.
int numRecords = [jsonArray.Size intValue];
int i = 0;
while (i < numRecords) {
    NSLog(@"%@%d%@",@"------ Record ",i,@" -------");

    CkoJsonObject *jsonRecord = [jsonArray ObjectAt: [NSNumber numberWithInt: i]];

    // Examine information for this record
    int numTelefones = [[jsonRecord SizeOfArray: @"telefones"] intValue];
    NSLog(@"%@%d",@"Number of telefones: ",numTelefones);
    int j = 0;
    while (j < numTelefones) {
        jsonRecord.J = [NSNumber numberWithInt: j];
        NSLog(@"%@%@",@"  telefones numero: ",[jsonRecord StringOf: @"telefones[j].numero"]);
        NSLog(@"%@%@",@"  telefones tipo: ",[jsonRecord StringOf: @"telefones[j].tipo"]);
        NSLog(@"%@%@",@"  telefones id: ",[jsonRecord StringOf: @"telefones[j].id"]);
        j = j + 1;
    }

    NSLog(@"%@%@",@"cnpj: ",[jsonRecord StringOf: @"cnpj"]);
    NSLog(@"%@%@",@"rua: ",[jsonRecord StringOf: @"rua"]);
    // ...

    int numContatos = [[jsonRecord SizeOfArray: @"contatos"] intValue];
    NSLog(@"%@%d",@"Number of contatos: ",numContatos);
    j = 0;
    while (j < numContatos) {
        jsonRecord.J = [NSNumber numberWithInt: j];

        numTelefones = [[jsonRecord SizeOfArray: @"contatos[j].telefones"] intValue];
        NSLog(@"%@%d",@"  Number of telefones: ",numTelefones);
        int k = 0;
        while (k < numTelefones) {
            jsonRecord.K = [NSNumber numberWithInt: k];
            NSLog(@"%@%@",@"  telefones numero: ",[jsonRecord StringOf: @"contatos[j].telefones[k].numero"]);
            NSLog(@"%@%@",@"  telefones tipo: ",[jsonRecord StringOf: @"contatos[j].telefones[k].tipo"]);
            NSLog(@"%@%@",@"  telefones id: ",[jsonRecord StringOf: @"contatos[j].telefones[k].id"]);
            k = k + 1;
        }

        NSLog(@"%@%@",@"  cargo: ",[jsonRecord StringOf: @"contatos[j].cargo"]);

        int numEmails = [[jsonRecord SizeOfArray: @"contatos[j].emails"] intValue];
        NSLog(@"%@%d",@"  Number of emails: ",numEmails);
        k = 0;
        while (k < numEmails) {
            jsonRecord.K = [NSNumber numberWithInt: k];
            NSLog(@"%@%@",@"  emails email: ",[jsonRecord StringOf: @"contatos[j].emails[k].email"]);
            NSLog(@"%@%@",@"  emails tipo: ",[jsonRecord StringOf: @"contatos[j].emails[k].tipo"]);
            NSLog(@"%@%@",@"  emails id: ",[jsonRecord StringOf: @"contatos[j].emails[k].id"]);
            k = k + 1;
        }

        j = j + 1;
    }

    i = i + 1;
}

// The output for the above code is:

// 	------ Record 0 -------
// 	Number of telefones: 1
// 	  telefones numero: 19995555555
// 	  telefones tipo: T
// 	  telefones id: 2541437
// 	cnpj: 11395551000164
// 	rua: R XAVIER AUGUSTO ROGGE, 22
// 	Number of contatos: 0
// 	------ Record 1 -------
// 	Number of telefones: 0
// 	cnpj: 12496555500180
// 	rua: AV ROLF WIEST, 100
// 	Number of contatos: 0
// 	------ Record 2 -------
// 	Number of telefones: 1
// 	  telefones numero: 1938655556
// 	  telefones tipo: T
// 	  telefones id: 2555438
// 	cnpj: 00003555500153
// 	rua: AV ABCDEF PINTO CATAO, 18
// 	Number of contatos: 1
// 	  Number of telefones: 1
// 	  telefones numero: 1999655554
// 	  telefones tipo: T
// 	  telefones id: 2555559
// 	  cargo: zzz de compras
// 	  Number of emails: 1
// 	  emails email: gerard@terra.com.br
// 	  emails tipo: T
// 	  emails id: 1065559
//