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Zig

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.

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Zig
const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    // Load the JSON array into a JsonArray:
    const json_array = try chilkat.JsonArray.init();
    defer json_array.deinit();
    json_array.loadSb(sb) catch {
        std.debug.print("{s}\n", .{try json_array.getLastErrorText(alloc)});
        return;
    };

    // Get some information from each record in the array.
    const num_records = json_array.getSize();
    var i: i32 = 0;
    while (i < num_records) {
        std.debug.print("------ Record {d} -------\n", .{i});

        const json_record = try json_array.objectAt(i);
        defer json_record.deinit();

        // Examine information for this record
        var num_telefones: i32 = json_record.sizeOfArray("telefones");
        std.debug.print("Number of telefones: {d}\n", .{num_telefones});
        var j: i32 = 0;
        while (j < num_telefones) {
            json_record.setJ(j);
            std.debug.print("  telefones numero: {s}\n", .{try json_record.stringOf(alloc, "telefones[j].numero")});
            std.debug.print("  telefones tipo: {s}\n", .{try json_record.stringOf(alloc, "telefones[j].tipo")});
            std.debug.print("  telefones id: {s}\n", .{try json_record.stringOf(alloc, "telefones[j].id")});
            j = j + 1;
        }

        std.debug.print("cnpj: {s}\n", .{try json_record.stringOf(alloc, "cnpj")});
        std.debug.print("rua: {s}\n", .{try json_record.stringOf(alloc, "rua")});
        // ...

        const num_contatos = json_record.sizeOfArray("contatos");
        std.debug.print("Number of contatos: {d}\n", .{num_contatos});
        j = 0;
        while (j < num_contatos) {
            json_record.setJ(j);

            num_telefones = json_record.sizeOfArray("contatos[j].telefones");
            std.debug.print("  Number of telefones: {d}\n", .{num_telefones});
            var k: i32 = 0;
            while (k < num_telefones) {
                json_record.setK(k);
                std.debug.print("  telefones numero: {s}\n", .{try json_record.stringOf(alloc, "contatos[j].telefones[k].numero")});
                std.debug.print("  telefones tipo: {s}\n", .{try json_record.stringOf(alloc, "contatos[j].telefones[k].tipo")});
                std.debug.print("  telefones id: {s}\n", .{try json_record.stringOf(alloc, "contatos[j].telefones[k].id")});
                k = k + 1;
            }

            std.debug.print("  cargo: {s}\n", .{try json_record.stringOf(alloc, "contatos[j].cargo")});

            const num_emails = json_record.sizeOfArray("contatos[j].emails");
            std.debug.print("  Number of emails: {d}\n", .{num_emails});
            k = 0;
            while (k < num_emails) {
                json_record.setK(k);
                std.debug.print("  emails email: {s}\n", .{try json_record.stringOf(alloc, "contatos[j].emails[k].email")});
                std.debug.print("  emails tipo: {s}\n", .{try json_record.stringOf(alloc, "contatos[j].emails[k].tipo")});
                std.debug.print("  emails id: {s}\n", .{try json_record.stringOf(alloc, "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
    //
}