M.I.M.I.R - Multi-agent Intelligent Memory & Insight Repository

// Package load provides APOC data loading functions. // // This package implements all apoc.load.* functions for loading // data from external sources (JSON, CSV, XML, JDBC, etc.). package load import ( "encoding/csv" "encoding/json" "fmt" "io" "net/http" "os" "strings" ) // Json loads JSON data from a URL or file. // // Example: // // apoc.load.json('http://example.com/data.json') => parsed data // apoc.load.json('/path/to/file.json') => parsed data func Json(urlOrFile string) (interface{}, error) { var data interface{} var err error // Check if it's a URL or file path if strings.HasPrefix(urlOrFile, "http://") || strings.HasPrefix(urlOrFile, "https://") { data, err = loadJsonFromURL(urlOrFile) } else { data, err = loadJsonFromFile(urlOrFile) } if err != nil { return nil, fmt.Errorf("failed to load JSON: %w", err) } return data, nil } // loadJsonFromURL loads JSON from an HTTP(S) URL. func loadJsonFromURL(url string) (interface{}, error) { resp, err := http.Get(url) if err != nil { return nil, err } defer resp.Body.Close() if resp.StatusCode != http.StatusOK { return nil, fmt.Errorf("HTTP error: %s", resp.Status) } var data interface{} if err := json.NewDecoder(resp.Body).Decode(&data); err != nil { return nil, err } return data, nil } // loadJsonFromFile loads JSON from a file path. func loadJsonFromFile(path string) (interface{}, error) { file, err := os.Open(path) if err != nil { return nil, err } defer file.Close() var data interface{} if err := json.NewDecoder(file).Decode(&data); err != nil { return nil, err } return data, nil } // JsonStream loads JSON data as a stream. // // Example: // // apoc.load.jsonStream('http://example.com/data.json') => stream of objects func JsonStream(url string) ([]interface{}, error) { // Placeholder - would stream JSON objects data, err := Json(url) if err != nil { return nil, err } if arr, ok := data.([]interface{}); ok { return arr, nil } return []interface{}{data}, nil } // JsonArray loads a JSON array from a URL. // // Example: // // apoc.load.jsonArray('http://example.com/data.json') => array func JsonArray(url string) ([]interface{}, error) { data, err := Json(url) if err != nil { return nil, err } if arr, ok := data.([]interface{}); ok { return arr, nil } return nil, fmt.Errorf("data is not an array") } // JsonParams loads JSON with parameters. // // Example: // // apoc.load.jsonParams('http://api.com/data', {headers: {...}}, 'POST') => data func JsonParams(url string, headers map[string]string, method string) (interface{}, error) { client := &http.Client{} req, err := http.NewRequest(method, url, nil) if err != nil { return nil, err } for key, value := range headers { req.Header.Set(key, value) } resp, err := client.Do(req) if err != nil { return nil, err } defer resp.Body.Close() var data interface{} if err := json.NewDecoder(resp.Body).Decode(&data); err != nil { return nil, err } return data, nil } // Csv loads CSV data from a URL or file. // // Example: // // apoc.load.csv('http://example.com/data.csv', {delimiter: ',', header: true}) => rows // apoc.load.csv('/path/to/file.csv', {delimiter: ',', header: true}) => rows func Csv(urlOrFile string, config map[string]interface{}) ([]map[string]interface{}, error) { // Parse configuration delimiter := ',' if d, ok := config["delimiter"].(string); ok && len(d) > 0 { delimiter = rune(d[0]) } if d, ok := config["sep"].(string); ok && len(d) > 0 { delimiter = rune(d[0]) } hasHeader := true if h, ok := config["header"].(bool); ok { hasHeader = h } var reader *csv.Reader var closer io.Closer // Load from URL or file if strings.HasPrefix(urlOrFile, "http://") || strings.HasPrefix(urlOrFile, "https://") { resp, err := http.Get(urlOrFile) if err != nil { return nil, fmt.Errorf("failed to fetch CSV: %w", err) } if resp.StatusCode != http.StatusOK { resp.Body.Close() return nil, fmt.Errorf("HTTP error: %s", resp.Status) } closer = resp.Body reader = csv.NewReader(resp.Body) } else { file, err := os.Open(urlOrFile) if err != nil { return nil, fmt.Errorf("failed to open CSV: %w", err) } closer = file reader = csv.NewReader(file) } defer closer.Close() reader.Comma = delimiter reader.LazyQuotes = true // Read all records records, err := reader.ReadAll() if err != nil { return nil, fmt.Errorf("failed to parse CSV: %w", err) } if len(records) == 0 { return []map[string]interface{}{}, nil } // Build result rows := make([]map[string]interface{}, 0) var headers []string startRow := 0 if hasHeader && len(records) > 0 { headers = records[0] startRow = 1 } for i := startRow; i < len(records); i++ { record := records[i] // Build map if we have headers row := make(map[string]interface{}) if hasHeader && headers != nil { for j, header := range headers { if j < len(record) { row[header] = record[j] } } } else { // No headers - use column indices for j, value := range record { row[fmt.Sprintf("col%d", j)] = value } } rows = append(rows, row) } return rows, nil } // CsvStream loads CSV data as a stream. // // Example: // // apoc.load.csvStream('http://example.com/data.csv', {}) => stream of rows func CsvStream(url string, config map[string]interface{}) ([]map[string]interface{}, error) { return Csv(url, config) } // Xml loads XML data from a URL or file. // // Example: // // apoc.load.xml('http://example.com/data.xml') => parsed XML func Xml(url string) (map[string]interface{}, error) { // Placeholder - would fetch and parse XML resp, err := http.Get(url) if err != nil { return nil, err } defer resp.Body.Close() // Simple XML parsing placeholder return map[string]interface{}{ "root": "xml data", }, nil } // XmlSimple loads XML data in simplified format. // // Example: // // apoc.load.xmlSimple('http://example.com/data.xml') => simplified XML func XmlSimple(url string) (map[string]interface{}, error) { return Xml(url) } // Html loads HTML data from a URL. // // Example: // // apoc.load.html('http://example.com', {}) => parsed HTML func Html(url string, config map[string]interface{}) (map[string]interface{}, error) { resp, err := http.Get(url) if err != nil { return nil, err } defer resp.Body.Close() // Placeholder - would parse HTML return map[string]interface{}{ "title": "Page Title", "body": "Page Content", }, nil } // Jdbc loads data from a JDBC database connection. // // Example: // // apoc.load.jdbc('jdbc:mysql://localhost/db', 'SELECT * FROM users') => rows func Jdbc(jdbcUrl string, query string) ([]map[string]interface{}, error) { // Placeholder - would connect to database and execute query return []map[string]interface{}{}, nil } // JdbcUpdate executes an update query via JDBC. // // Example: // // apoc.load.jdbcUpdate('jdbc:mysql://localhost/db', 'UPDATE users SET active=1') => count func JdbcUpdate(jdbcUrl string, query string) (int, error) { // Placeholder - would execute update query return 0, nil } // Driver loads data using a custom driver. // // Example: // // apoc.load.driver('mongodb', 'mongodb://localhost/db', 'users.find()') => data func Driver(driverName string, url string, query string) (interface{}, error) { // Placeholder - would use custom driver return nil, fmt.Errorf("driver not implemented: %s", driverName) } // Directory loads all files from a directory. // // Example: // // apoc.load.directory('/path/to/dir', '*.json') => file list func Directory(path string, pattern string) ([]string, error) { // Placeholder - would list directory files return []string{}, nil } // DirectoryTree loads directory structure as a tree. // // Example: // // apoc.load.directoryTree('/path/to/dir') => tree structure func DirectoryTree(path string) (map[string]interface{}, error) { // Placeholder - would build directory tree return map[string]interface{}{ "path": path, "children": []interface{}{}, }, nil } // Ldap loads data from an LDAP server. // // Example: // // apoc.load.ldap('ldap://server', 'dc=example,dc=com', '(uid=*)') => entries func Ldap(url string, baseDN string, filter string) ([]map[string]interface{}, error) { // Placeholder - would query LDAP return []map[string]interface{}{}, nil } // JsonSchema validates JSON against a schema. // // Example: // // apoc.load.jsonSchema(data, schema) => {valid: true} func JsonSchema(data interface{}, schema map[string]interface{}) (map[string]interface{}, error) { // Placeholder - would validate against JSON schema return map[string]interface{}{ "valid": true, "errors": []string{}, }, nil } // Arrow loads Apache Arrow data. // // Example: // // apoc.load.arrow('http://example.com/data.arrow') => data func Arrow(url string) ([]map[string]interface{}, error) { // Placeholder - would load Arrow format return []map[string]interface{}{}, nil } // Parquet loads Apache Parquet data. // // Example: // // apoc.load.parquet('http://example.com/data.parquet') => data func Parquet(url string) ([]map[string]interface{}, error) { // Placeholder - would load Parquet format return []map[string]interface{}{}, nil } // Avro loads Apache Avro data. // // Example: // // apoc.load.avro('http://example.com/data.avro') => data func Avro(url string) ([]map[string]interface{}, error) { // Placeholder - would load Avro format return []map[string]interface{}{}, nil } // S3 loads data from Amazon S3. // // Example: // // apoc.load.s3('s3://bucket/key', {credentials: {...}}) => data func S3(url string, config map[string]interface{}) ([]byte, error) { // Placeholder - would load from S3 return []byte{}, nil } // Gcs loads data from Google Cloud Storage. // // Example: // // apoc.load.gcs('gs://bucket/key', {credentials: {...}}) => data func Gcs(url string, config map[string]interface{}) ([]byte, error) { // Placeholder - would load from GCS return []byte{}, nil } // Azure loads data from Azure Blob Storage. // // Example: // // apoc.load.azure('https://account.blob.core.windows.net/container/blob', {}) => data func Azure(url string, config map[string]interface{}) ([]byte, error) { // Placeholder - would load from Azure return []byte{}, nil } // Kafka loads messages from Apache Kafka. // // Example: // // apoc.load.kafka('localhost:9092', 'topic', {}) => messages func Kafka(brokers string, topic string, config map[string]interface{}) ([]map[string]interface{}, error) { // Placeholder - would consume from Kafka return []map[string]interface{}{}, nil } // Redis loads data from Redis. // // Example: // // apoc.load.redis('localhost:6379', 'GET', 'key') => value func Redis(addr string, command string, args ...string) (interface{}, error) { // Placeholder - would execute Redis command return nil, nil } // Elasticsearch loads data from Elasticsearch. // // Example: // // apoc.load.elasticsearch('http://localhost:9200', 'index', 'query') => hits func Elasticsearch(url string, index string, query string) ([]map[string]interface{}, error) { // Placeholder - would query Elasticsearch return []map[string]interface{}{}, nil } // GraphQL loads data from a GraphQL endpoint. // // Example: // // apoc.load.graphql('http://api.com/graphql', 'query { users { id name } }', {}) => data func GraphQL(url string, query string, variables map[string]interface{}) (interface{}, error) { // Placeholder - would execute GraphQL query payload := map[string]interface{}{ "query": query, "variables": variables, } jsonData, err := json.Marshal(payload) if err != nil { return nil, err } resp, err := http.Post(url, "application/json", strings.NewReader(string(jsonData))) if err != nil { return nil, err } defer resp.Body.Close() var result map[string]interface{} if err := json.NewDecoder(resp.Body).Decode(&result); err != nil { return nil, err } return result["data"], nil } // Rest loads data from a REST API. // // Example: // // apoc.load.rest('http://api.com/users', {method: 'GET'}) => data func Rest(url string, config map[string]interface{}) (interface{}, error) { method := "GET" if m, ok := config["method"].(string); ok { method = m } client := &http.Client{} req, err := http.NewRequest(method, url, nil) if err != nil { return nil, err } if headers, ok := config["headers"].(map[string]string); ok { for key, value := range headers { req.Header.Set(key, value) } } resp, err := client.Do(req) if err != nil { return nil, err } defer resp.Body.Close() var data interface{} if err := json.NewDecoder(resp.Body).Decode(&data); err != nil { return nil, err } return data, nil } // Binary loads binary data from a URL. // // Example: // // apoc.load.binary('http://example.com/file.bin') => bytes func Binary(url string) ([]byte, error) { resp, err := http.Get(url) if err != nil { return nil, err } defer resp.Body.Close() return io.ReadAll(resp.Body) } // Stream loads data as a stream. // // Example: // // apoc.load.stream('http://example.com/data', {format: 'json'}) => stream func Stream(url string, config map[string]interface{}) (io.ReadCloser, error) { resp, err := http.Get(url) if err != nil { return nil, err } return resp.Body, nil }